UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
Form 10-K
 
ý
ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
o
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the fiscal year ended December 31, 20172023
or
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from ___ to ___
 
Commission File Number 001-34481
 
Mistras Group, Inc.
(Exact name of registrant as specified in its charter)charter)
Delaware
Delaware22-3341267
(State or other jurisdiction of
incorporation or organization)organization)
(I.R.S. Employer
Identification Number)Number)
 
195 Clarksville Road
Princeton Junction, New Jersey 08550
(Address of principal executive offices) (Zip Code)
(609) 716-4000
(Address, including zip code, andRegistrant's telephone number, including area code of registrant’s principal executive offices)
)
 
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading SymbolName of each exchange on which registered
Common Stock, par value $.01 par valueMGNew York Stock Exchange
 
Securities registered pursuant to Section 12(g) of the Act: None
  
Indicate by check mark whetherif the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act of 1933.Act.  Yes o  No ý
 
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934 (the “Exchange Act”).Act.  Yes o  No ý
 
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  Yes ý  No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  Yes ý  No o
Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of Registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. o
  
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer”, “smaller reporting company” and “smaller reporting“emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):
 
Large accelerated filer o
Accelerated filerx
x
Non-accelerated filer o
Smaller reporting companyo
Emerging growth companyo

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o



Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☒

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. Yes ☐  No ý

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant's executive officers during the relevant recovery period pursuant to § 240.10D-1(b). Yes ☐  No ý

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  Yes o  No ý
 
The aggregate market value of the voting and non-voting common stock held by non-affiliates of the Registrant as of June 30, 2017,registrant, based uponon the closing price of $7.72 on June 30, 2023, the common stocklast business day of the registrant's most recently completed second fiscal quarter, as reported byon the New York Stock Exchange, on such date was approximately $377.7$158.4 million.
 
As of March 5, 2018,6, 2024, the Registrant had 28,301,59830,634,785 shares of common stock outstandingoutstanding.
 
DOCUMENTS INCORPORATED BY REFERENCE
 
Information required by Part III (Items 10, 11, 12, 13 and 14) is incorporated by reference to portions of the registrant’s definitive Proxy Statementproxy statement for its 2018 Annual Meeting2024 annual meeting of Shareholdersstockholders (the “Proxy Statement”), which is expected to be filed not later than 120 days after the registrant’s fiscal year ended December 31, 2017.2023. Except as expressly incorporated by reference, the Proxy Statement shall not be deemed to be a part of this report on Form 10-K.

Auditor Name: PricewaterhouseCoopers LLP Auditor Location: Philadelphia, Pennsylvania Auditor Firm ID: 238



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MISTRAS GROUP, INC.
ANNUAL REPORT ON FORM 10-K
TABLE OF CONTENTS



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ITEM 1.BUSINESS

FORWARD-LOOKING STATEMENTS
 
This Annual Report on Form 10-K (this "Annual Report") contains forward-looking statements regarding us and our business, financial condition, results of operations and prospects within the meaning of Section 27A of the Securities Act of 1933, (Securities Act)as amended (the "Securities Act"), and Section 21E of the Securities Exchange Act of 1934, (Exchange Act).as amended (the "Exchange Act"), regarding Mistras Group, Inc. ("Mistras," "MISTRAS," "the Company," "us," "we," "our" and similar expressions) and our business, financial condition, results of operations and prospects. Such forward-looking statements include those that express plans, anticipation, intent, contingency, goals, targets or future development and/or otherwise are not statements of historical fact. These forward-looking statements are based on our current expectations and projections about future events and they are subject to risks and uncertainties known and unknown that could cause actual results and developments to differ materially from those expressed or implied in such statements.
 
In some cases, you can identify forward-looking statements by terminology, such as “goals,” “expects,” “anticipates,” “intends,” “plans,” “believes,” “seeks,” “estimates,” “may,” “could,” “should,” “would,” “predicts,” “appears,” “projects,” or the negative of such terms or other similar expressions.expressions, although the absence of such words does not mean that a statement is not forward-looking. Factors that could cause or contribute to differences in results and outcomes from those in our forward-looking statements include, without limitation, those discussed elsewhere in this Annual Report in Part I, Item 1A. “Risk Factors,” Part 2,II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and in this Item 1, as well as those discussed in our other Securities and Exchange Commission (SEC) filings.1. We undertake no obligation to (and expressly disclaim any obligation to) revise or update any forward-looking statements made herein whether as a result of new information, future events or otherwise.otherwise, except as may be required under applicable securities laws. However, you should consult any further disclosures we may make on these or related topics in our reports on Form 8-K or Form 10-Q filed with the SEC.Securities and Exchange Commission ("SEC").
 
The following discussions should be read in conjunction with the sections of this Annual Report entitled “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and “Risk Factors.”
 
Transition PeriodOUR BUSINESS


On January 3, 2017, the Company's Board of Directors approved a change in the Company's fiscal year end from May 31 to December 31, effective December 31, 2016. In connection with this change, we previously filed a Transition Report on Form 10-K to report the results of the seven-month transition period from June 1, 2016 to December 31, 2016. In this Annual Report, the periods presented are the year ended December 31, 2017, the seven-month transition period from June 1, 2016 to December 31, 2016 (which we sometimes refer to as the "transition period ended December 31, 2016") and the years ended May 31, 2016 and 2015 (which we sometimes refer to as "fiscal 2016 and fiscal 2015", respectively). For comparison purposes, we have also included unaudited data for the year ended December 31, 2016 and for the seven months ended December 31, 2015.Overview

Our Business

We offer our customers “one source for asset protection solutions®” and areMistras Group, Inc. is a leading global"one source" multinational provider of integrated technology-enabled asset protection solutions, usedhelping to evaluatemaximize the structural integritysafety and reliability ofoperational uptime for civilization’s most critical energy, industrial and public infrastructure.civil assets.
We deliver
Backed by an innovative, data-driven asset protection portfolio, proprietary technologies, and a decades-long legacy of industry leadership, the Company helps customers with asset-intensive infrastructure in the oil and gas, petrochemical, aerospace and defense, industrials, power generation and transmission (including alternative and renewable energy), other process industries and infrastructure, research and engineering and other industries towards achieving and maintaining operational excellence. By supporting these customers that help fuel our vehicles and power our society; inspecting components that are trusted for commercial, defense, and private space; and building monitoring equipment to help avoid catastrophic incidents, the Company helps the world at large.

The Company enhances value for its customers by providing data driven solutions that digitalize the asset protection process and provide valuable insights to our customers that maximize uptime of the assets monitored. Our data analytical solutions offerings, coupled with the traditional non-destructive testing ("NDT"), provide us a competitive advantage over our competitors. With our ability to integrate asset protection throughout supply chains and centralizing data management, we are able to provide insights and actionable recommendations to our customers through a comprehensive “OneSource” portfoliosuite of customizedIndustrial Internet of Things ("IoT")-connected digital software and monitoring solutions, utilizing a proven systematic method that creates a closed-loop lifecycleincluding OneSuite™, which serves as an ecosystem platform, pulling together all of the Company’s software and data services capabilities, for addressing continuousthe benefit of its customers.

The Company’s core capabilities also include NDT field inspections enhanced by advanced robotics, laboratory quality control, laboratory materials services, shop laboratory assurance testing, sensing technologies and NDT equipment, asset protection and improvement. These mission critical solutions enhance our customers’ ability to comply with governmental safetymechanical integrity engineering services, and environmental regulations, extend the useful life of their assets, increase productivity, minimize repair costs, manage risklight mechanical maintenance and avoid catastrophic disasters.access services.

Given the role our solutions play in ensuringenhancing the safe and efficient operation of our customers' infrastructure, we have historically provided a majority of our solutions to our customers on a regular, recurring basis. We perform these services largely at our customers’ facilities, while primarily servicing our aerospace customers at our growing network of state-of-the-art, in-house laboratories. These solutions typically include Non-Destructive Testing (NDT)NDT and inspection services, and can also include a wide range of
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mechanical services, including engineering assessments, heat tracing, pre-inspection insulation stripping, inspections, coating applications, re-insulation, engineering assessments and long-term condition-monitoring. Our traditional NDT solutions, coupled with our data analytical solutions offerings, allow us to provide accessible and easily understood data to our customers that allows them to identify when an asset may fail, in order to prioritize inspections and repair.

Under thisour business model, many customers outsource their inspection to us on a “run and maintain” basis. We have established long-term relationships as a critical solutions provider to many of the leading companies with asset-intensive infrastructure in our target markets. These markets include companies in the oil and gas, (downstream, midstream, upstream and petrochemical), commercial aerospace and defense, industrials, power generation (natural gas, fossil, nuclear, alternative, renewable, and transmission (including alternative and distribution)renewable energy), publicother process industries and infrastructure, chemicals, transportation, primary metals and metalworking and research and engineering institutions.and other industries.


We have focused on providing our advanced asset protection solutions to our customers using proprietary, technology-enabled software and testing instruments, including those developed by our Products and Systems segment. In the past, we have made numerous acquisitions in an effort to grow our base of experienced, certified personnel, expand our service lines and technical capabilities, increase our geographical reach, complement our existing offerings, and leverage our fixed costs. We have increased our capabilities and the size of our customer base through the development of applied technologies and managed support services, organic growth and the integration of acquired companies. These acquisitions have provided us with additional service lines, technologies, resources and customers, which we believe will enhance our advantages over our competition.

We believe long-term growth can be realized in our target markets. Our business and financial results are impacted by world-wide macro- and micro-economic conditions generally, as well as those within our target markets. Among other things, we expect the timing of our oil and gas customers inspection expenditures to be impacted by oil price fluctuations.

We have continued providing our customers with an innovative asset protection software ecosystem through our MISTRAS OneSuite platform. The OneSuite platform offers functions of MISTRAS' software and services brands as integrated applications on a cloud environment. OneSuite serves as a single access portal for customers' data activities and provides access to 90 plus applications being offered on one centralized platform.

We have established long-term relationships as a critical solutions provider to many of the leading companies with asset-intensive infrastructure in our target markets. These markets primarily consist of:
Oil and Gas (Downstream, Midstream and Upstream)
Aerospace and Defense
Industrial
Power Generation and Transmission
Infrastructure, Research and Engineering
Other Process Industries
Petrochemical

A majority of our revenues are generated by deploying technicians at our customers' locations. A majority of our revenues from aerospace and defense as well as certain manufacturing customers are generated by performing inspections and testing at our various in-house laboratories.
We generated revenues of $705.5 million, $687.4 million and $677.1 million for the years ended December 31, 2023, 2022 and 2021, respectively. We generated net loss of $17.4 million, a net income of $6.6 million and net loss of $3.9 million for the years ended December 31, 2023, 2022, and 2021, respectively. For the years ended December 31, 2023, 2022 and 2021, we generated approximately 82%, 83% and 82%, respectively, of our revenues from our North America segment. Our revenues are diversified, with our top ten customers accounting for approximately 35%, 33% and 33% of our revenues during the years ended December 31, 2023, 2022 and 2021, respectively, with no customer accounting for greater than 10% of our revenues in any such year.
OUR SPECIALIZED SOLUTIONS
As a globalprovider of asset protection leader,solutions, we combine our industry-leading services, products, data management and analytical solutions technologies to provide a comprehensive rangeunique and custom-tailored solution for each customer’s individual asset protection needs, ranging from routine inspections to complex, plant-wide asset integrity management programs.
Field Inspections
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Our field inspections portfolio includes traditional and advanced NDT techniques and inline inspection for pipelines. We offer these solutions that includes:on an individual basis, or as parts of enterprise inspection and testing programs.
Traditional NDT Field Inspections: The foundation of our business, NDT is the examination of assetsan asset without materially impacting current and future usefulness or impairing the integrity of these assets.its structural integrity. The ability to inspect infrastructure assets and not interfere with their operating performance makes NDT a highly-attractive alternative to many traditional intrusive inspection techniques, which may require dismantling equipment or shutting down an asset or entire facility. Typical issues for which our technicians inspect include potential corrosion, cracking, pitting, leaking, faults and flaws in piping, storage tanks and pressure vessels, as well as a plant, mill or site. Thesewide range of other industrial assets and public infrastructure.
Our automated data acquisition solutions utilize smart sensing and monitoring, robotic inspection systems, and digitized spot inspections to provide asset integrity data with greater insight into current and potentially future asset conditions.
Field inspection services include, for example,lend themselves to integration with our other offerings, and as such have often served as the initial entry point to more advanced customer engagements that require additional solutions. After an initial field inspection is performed, we are able to provide multiple supplemental solutions, such as maintenance services, engineering consulting and data analytical solutions services we provide, that further serve to solidify our relationships with our customers and drive additional revenue.
Data Analytical Solutions
The asset protection solutions that we provide throughout our customers’ asset lifecycles generate mechanical integrity (MI) assessments, aboveground storage tankdata that needs to be effectively archived, managed, and analyzed. A common difficulty that our customers face is the ability to easily access and analyze large volumes of data from multiple data collection and input sources. We recognize that this data is most valuable to our customers when it is accessible and integrated (regardless of vendor, tool, or facility), and we have taken significant steps to digitalizing asset protection processes through our data analytical solutions product offerings.

Our data acquisition capabilities capture asset data to help our customers follow regulatory compliance, ensure mechanical integrity, and reduce unplanned outages. We capture data using manned and automated techniques that minimize the impact on our customers' operations. Customers can access our collected data for all facilities, structures, and assets that we manage from one easy to use dashboard, which enables customers to evaluate trending and benchmarking across multiple sites seamlessly.

Customer data is managed in our asset protection software ecosystem, OneSuite. Our OneSuite software platform offers functions of our popular software and services brands as integrated applications in a cloud environment. Our OneSuite software platform serves as a single access portal for customers' data activities and provides access to 90 plus integrated applications being offered in one centralized platform.

Many customers take advantage of our data analytics capabilities that utilize technology to automatically generate insights and actionable recommendations that can be implemented to improve our customers' overall productivity. Our managed services integrate our data capabilities with data analysts, field personnel and engineers to provide a comprehensive solution to our customers that reduces our customers' overall costs.

Our customers within the oil and gas andpetrochemical industries take advantage of our industry-leading application Plant Condition Management Software (PCMS®). This application is one of the most widely used asset integrity management systems (“AIMS”). We estimate that our PCMS application is currently used by approximately 50% of the U.S. refiners, as well as by leading midstream pipeline energy companies and major oil and gas companies in Canada and Europe. This allows us to provide our customers with industry-leading insights across all their facilities and enables us to provide additional software and solutions to these customers and perform recurring maintenance where necessary.

Our pipeline customers utilize our Onstream® services and New Century® software platform to capture, manage and analyze pipeline integrity data in the midstream and upstream sectors of the oil and gas industry. We provide among the most comprehensive, data-driven pipeline protection solutions available to the industry. Our proprietary pipeline data analysis solutions enable deep integration of inline inspection ("ILI") big data with real-time risk analytics and business intelligence ("BI") to provide capabilities for supporting pipeline inspection, American Petroleum Institute (API) visual inspectionsintegrity, which we believe provides us with an important competitive advantage.

Our wind, power and predictive maintenance (PdM) programs.infrastructure customers implement our online condition-monitoring solutions that provide real-time reports and analysis of infrastructure to alert facility personnel to damages before critical failures occur, while our flexible, IIoT compatible, cloud-based online monitoring portal centralizes and analyzes all collected monitoring data. These monitoring solutions are often installed in hazardous or hard-to-reach locations, helping to enhance safety by reducing the need to send technicians into unsafe locations.
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Laboratory Testing
Advanced NDT Field Inspections: In most cases,Our network of in-house laboratories located across North America and Europe offers quality assurance and quality control ("QA/QC") solutions for new and existing metal and alloy components, materials, and composites.
Our in-house laboratories work with our customers to test and measure utilized components throughout their lifetimes, from preparation and production to post-processing and in-service component monitoring. Our laboratory QA/QC solutions help to meet customer needs throughout their manufacturing cycles, with a focus on optimizing production logistics. Our in-house laboratory solutions include:
Non-destructive evaluation/inspection ("NDE"/"NDI")
Destructive testing ("DT")
Metallurgical testing
Chemical analysis testing
Mechanical services
Machining services
Pre-machining
Casting repair solutions
Finishing services

We often inspect and test components prior to assembly to screen for defects and discontinuities introduced in the manufacturing process. We also inspect existing components to ensure they remain fit-for-purpose.
Our laboratories hold a wide variety of certifications, such as: Nadcap (formerly NADCAP, the National Aerospace and Defense Contractors Accreditation Program), AS9100/ISO-9001, Federal Aviation Administration Repair Station, and the International Traffic in Arms Regulations/Export Administration Regulations, that allow us to perform inspections which meet or exceed stringent regulatory and manufacturers' requirements. With these involve proprietary acoustic emission (AE), digital radiography, infrared, wireless and/or automated ultrasonic inspectionscertifications come a comprehensive range of approvals from prime contractors of major projects, militaries and sensors, which are operated byinternationally-renowned original equipment manufacturers ("OEMs") from many of our highly-trained technicians.
key markets, including the oil and gas, aerospace and defense, power generation and industrial markets.

Maintenance
Mechanical and Maintenance Services:We perform maintenance and light mechanical services to prepare assets for inspection and to return them to working condition.condition post inspection. These services include corrosion removal, mitigation and prevention; insulation installation and removal; electrical coating andservices; heat tracing, services; corrosion assessmentindustrial cleaning; pipefitting; and mitigation services, including water blasting, sand blasting, and ultra-high pressure water (UHP) blasting, used for both offshore oil and gas platforms and land-based refinery and chemical fixed equipment; and wind turbine repairs and maintenance. NDT inspectionwelding. Our light mechanical services are often offered whileas complementary, value-added solutions to inspections, such as removing insulation in post-cleaning mode. order to inspect piping, then re-installing insulation.
Our multi-disciplined technicians offer maintenance and light mechanical services in hard-to-access areas, in combination with rope access or diving strategies.
Mechanical services are still a small part of our business, and we are carefulcarefully try to try and avoid providing any such services that conflict with our inspection services.

Engineering Consulting
Destructive Testing (DT): A definitive discipline in material testing, which takes specimens through to mechanical failure while examining a host of factors. Hardness, stiffness and strength are a few key indicators drawn from destructive tests per customer specifications. DT is performed by our German and select U.S. labs, which specializes in an array of destructive testing applications utilized throughout the materials selection and approval process in the aerospace, automotive, chemical, oil and gas and power generation industries.

In-House Lab Testing Services: Our in-house inspection services provide cost-effective, efficient solutions that improve the integrity and lifespan of critical assets featuring a dynamic suite of testing and inspection services. With a network of in-house laboratories, weWe provide a one-stop shopbroad range of engineering consulting services, primarily for traditional (NDT), advanced non-destructive testing (ANDT),process equipment, technologies and destructive testing (DT) of materials and fabricated structures by offering a complete inspection package - from preparation and production all the way to post-processing. These capabilities are available through our state-of-the-art testing equipment and expertise in our grid of in-house testing laboratories across the U.S., Canada and Europe.

Proprietary Products & Systems: A proprietary and customized portfolio of software products for testing and analyzing data captured in real-time by our technicians and sensors, including advanced features such as pattern recognition and neural networks.

Data Management & Analysis Software:facilities. Our world-class enterprise inspection database management and analysis software (IDMS), Plant Condition Management Software (PCMS®), stores and analyzes inspection data. It compares data to prior operations and testing of similar assets, industrial standards and specific risk conditions, such as use with highly-flammable or corrosive materials. It also develops asset integrity management plans based on Risk-Based Inspections (RBI) that specify an optimal schedule for the testing, maintenance and retirement of assets.

On-Line Monitoring and Trending Systems: Condition-monitoring systems provide secure, web-based, remote or on-site asset inspection, real-time reports and analysis of plant or enterprise structural integrity data, comparison of integrity data to our library of historical inspection data and analysis to better assess structural integrity. They also provide alerts for and prioritize future inspections and maintenance.

Engineering Consulting Services: These servicesengineering consultations include plant operations and management support, covering bothturnaround/shutdown planning, profit improvement, facilities planning studies, engineering design, process and equipment technologies; project planning, management and execution; expert testimony;safety reviews, energy optimization evaluations, benchmarking/key performance indicator development and technical training.
Our Asset Integrity Management ("AIMS") and Mechanical Integrity (MI)("MI") services help improve plant safety, asset reliability and regulatory compliance through a

systematic, engineering-based approach to ensure the on-goingongoing integrity and safety of equipment and industrial facilities. AIMS/MI services can include conducting an inventory of infrastructure assets; developing, implementing and training personnel in executing inspection and maintenance procedures; and managing inspections, testing, and assessments of customer assets.MI programs. We enable customershelp to identify gaps between existing and desired practices identify deficiencies and degradations, and establish quality assurance standards for fabrication, engineering and installation of infrastructure assets. Our MI solutions incorporate comprehensive (RBI) data analysis from our proprietary IDMS, providing detailed, integrated, cost-effective solutions that rate the risks
Access
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Access Solutions: Much of our work is conducted in hard-to-access orlocations, including those in at-height, subsea and confined locations. We perform NDTutilize scaffolding and mechanical services both on the groundrope access to access at-height and at height, using specialized technicians who work safely while suspended on ropes rather than using scaffolding. We employ trained andconfined assets; certified divers for subsea inspection and maintenance,maintenance; and we utilize unmanned (drone) aerial, land-based and subsea systems forto deliver a wide range of inspection applications.
applications, with an emphasis on minimizing at-height access and confined space entry.

Equipment
We design and manufacture portable, handheld, wireless and turnkey NDT equipment, along with corresponding data acquisition sensors and software, for spot inspections and long-term, unattended monitoring applications.
We sell these solutions as individual components, or as complete systems, which include a combination of sensors, amplifiers, signal processing electronics, knowledge-based software and decision and feedback electronics. We also sell integrated service-and-system technology packages, in which our field technicians utilize our proprietary and specialized testing procedures and hardware, advanced pattern recognition, neural network software and databases to compare test results against our prior testing data or industry standards.
We provide a range of acoustic emission ("AE") products and are a leader in the design and manufacture of AE sensors, instruments and turnkey systems used for monitoring and testing materials, pressure components, processes, and structures. We also design and manufacture ultrasonic testing ("UT") equipment.
Most of our revenueshardware products are generated by deploying technicians at our customers' locations, where NDTfabricated, assembled and mechanical services are performed on-site. However, the majority of our aerospace revenues are generated at our various in-house laboratories that have Nadcap and numerous other customer accreditations. We have special machinery and equipment and specialized technicians at these labs to perform various forms of NDT inspection and mechanical services, which can include chemical cleaning, coating application, painting, and pressure testing techniques. Our labs hold a wide variety of certifications that allow them to perform inspections to meet or exceed stringent regulatory requirements, such as: Nadcap, AS9100/ISO-9001, FAA Repair Station and ITAR/EAR. With these certifications comes a comprehensive range of approvals from prime contractors of major projects, the military, and internationally-renowned products and systems manufacturers from aerospace to nuclear energy, transportation to petrochemical industries.
We offer our customers a customized package of services, products and systems, or our enterprise software and other niche high-value products on a stand-alone basis. For example, customers can purchase most of our sensors and accompanying software to integrate with their own systems, or they can purchase a complete turn-key solution, including installation, monitoring and assessment services. Importantly, we do not sell certain advanced and proprietary software and other products as stand-alone offerings; instead, we embed themtested in our comprehensive service offeringsISO-9001-certified facility in Princeton Junction, New Jersey. We also design and manufacture automated ultrasonic systems and scanners in France.
Centers of Excellence
Another differentiator in our business model is our Centers of Excellence ("COEs"), which offer support for asset, technology or industry-specific solutions. Our subject matter experts engage in strategic sales opportunities to protectoffer customers value-added solutions using advanced technologies and methods. The COEs help to standardize our investmentapproach to common problems in intellectual property while providing our customers an added value which generates a substantial source of recurring revenues.  key market segments. Our COEs include:
As of December 31, 2017, we had approximately 6,000 employees, in approximately 120 offices across 14 countries. We generated revenues of $701.0 million and $404.2 million, respectively, and net loss of $2.2 million and net income of $9.6 million, respectively, for the year ended December 31, 2017 and the transition period ended December 31, 2016. We generated revenues of $719.2 million and $711.3 million and net income of $24.7 million and $16.1 million for fiscal 2016 and 2015, respectively. For the year ended December 31, 2017, the transition period ended December 31, 2016, and fiscal 2016 and 2015, we generated approximately 78%, 73%, 77% and 76% respectively, of our revenues from ourAcoustic Emission
American Petroleum Institute ("API") Turnarounds
AIMS/MI/Engineering
Automated Ultrasonics
Fossil Power
Guided Wave Ultrasonics
Mechanical Services segment. Our revenues are diversified, with our top ten customers accounting for approximately 38%, 37%, 36% and 33% of our revenues during the year ended December 31, 2017, the transition period ended December 31, 2016 and fiscal 2016 and 2015, respectively.
Nuclear Power
Phased Array
Rope Access
Wind
Tank Inspection
Tube Inspection
Unmanned Systems

ASSET PROTECTION INDUSTRY OVERVIEW
Asset Protection Industry Overview
The asset protection industry consists of NDT inspection, DT, PdM and MI services and inspection data management and analysis. NDT plays a crucial role in assuring the operational and structural integrity and reliability of critical infrastructure. As an asset protection solutions provider, we seek to maximize the uptime and safety of critical infrastructure, by helping customers to detect, locate, mitigate, and prevent damages such as corrosion, cracks, leaks, manufacturing flaws and other concerns to operating and structural integrity. In addition to these core utilities, the storage and analysis of collected inspection and MI data is also a key aspect of asset protection.
NDT has historically been a prominent solution in the asset protection industry due to its capacity to detect defects without compromising the usefulnessstructural integrity of the tested materials or equipment. The evolutionTraditionally, the supply of NDT inspection services has been provided by many relatively small vendors, who provide services in combination with broader industry trends, including increased asset utilization and aging of infrastructure, includes the desire by owners to extend the useful life of their existing infrastructure, new construction projects, enhanced government regulation and the shortage of certified NDT professionals, have made NDT an integral and increasingly outsourced part of many asset-intensive industries. The industry has progressed such that end users are actively seeking firms that can provide asset protection solutions to both in and out of service issues.
Historically, NDT solutions used qualitative testing methods aimed primarily at detecting defects in the tested materials, also referred to as traditional NDT. The traditional NDT market had been highly fragmented, with a significant number of small vendors providing inspection services to divisions of companies or local governments situated in close proximity to the vendor’s field inspection engineers and technicians. Themore localized geographic region. A trend has progressed over the past several years,emerged, however, for customers to increasingly engage a select few vendors capable of providing a wider spectrum of asset protection solutions for global infrastructure. This shiftinfrastructure, in underlyingaddition to an increased demand for advanced non-destructive testing ("ANDT") solutions and data acquisition software, both of which began in the early 1990s and has accelerated more recently, has contributedrequire a highly-trained workforce.
Due to a transition from traditional NDT solutions to more advanced solutions that employ automated digital sensor

technologies and accompanying enterprise software, allowing for the effective capture, storage, analysis and reporting of inspection and engineering results electronically and in digital formats. These advanced techniques, taken together with advances in wired and wireless communication and information technologies, have further enabled the development of remote monitoring systems, asset-management and predictive maintenance capabilities and other data analytics and management. We believe that as advanced asset protection solutions continue to gain acceptance and the technology becomes more and more reliable,these trends, those vendors offering broad, complete and integrated solutions, scalable operations, skilled personnel and a global footprint willare expected to have a distinct competitive advantage. Moreover, we believe that vendors that are able to effectively deliver both
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advanced solutions and data analytics, by virtue of their access to customers’ data, create a significant barrier to entry for competitors, leading to the opportunity to further create significant recurring revenues.
Key Dynamics of the Asset Protection Industry
We believe the following represent key dynamics of the asset protection industry:industry, and that the market available to us will continue to grow as these macro-market trends continue to develop:
Digital Transformation of Asset Protection. Plants in the oil and gas, petrochemical and other process industries are recognizing the need to evolve their traditional, paper-based mechanical integrity programs in favor of digitalized solutions. The rise of big data intelligence, and our data analytical solutions offerings, provide our customers with actionable insights from raw asset integrity data. The growing digitization of asset protection provides opportunities for contractors with a wide range of asset protection expertise and integrated data platforms to provide customers with data analytical solutions to help customers maximize uptime while controlling costs.
Extending the Useful Life of Aging Infrastructure. TheInfrastructure While Increasing Utilization. Due to the prohibitive costcosts and challengechallenges of building new infrastructure, has resulted in the significant aging of existing infrastructure and causedmany companies to seek wayshave chosen to extend the useful life of existing assets through enhancements, rather than replacing these assets. For example, due toThis has resulted in the significant cost associated with constructing new refineries, stringent environmental regulations which haveaging and increased the costsutilization of managing them and difficultyexisting infrastructure in finding suitable locations on which to build them, only one new refinery has been constructed in the United States since 1976. Another example is in the area of power transmission and distribution. The Smart Grid initiative in the United States is causing increased loading on aging transformers that are more than 40 years old in many cases. The need to test and monitor these units to ensure their reliability until replacement is instrumental in support of a reliable Smart Grid network.our target markets. Because aging infrastructure requires relatively higher levels ofmore frequent inspection and maintenance and repair in comparison to new infrastructure, as well as more frequent, extensive and ongoing testing, companies and public authorities continue to spend on asset protection solutions to ensure the operational and structural integrity of existing infrastructure.
their aging infrastructure assets continue to operate effectively.

Outsourcing of Non-Core Activities and Technical Resource Constraints. TheConstraints. Due to the increasing sophistication and automation of NDT programs, together with a decreasing supply of skilled professionals and stricter and increasing governmental regulations, has caused many companies and public authorities to outsource NDT and other services rather than recruit and train such capabilities internally. Owners and operators of infrastructure are increasingly contractingoutsourcing NDT to third-party providers with third party providers that have the necessary technical product portfolio,advanced solution portfolios, engineering expertise technical workforce and proven track record of results-oriented performance to effectively meet their increasing requirements.
trained workforces.

Increasing Asset and Capacity Utilization. Due to the high repair and replacement costs and the limited construction of new infrastructure, existing infrastructure in some of our target markets has experienced high usage, causing increased stress and fatigue that accelerates deterioration. These dynamic costs also motivate our customers to complete repairs, maintenance, replacements and upgrades more quickly. For example, increasing demand for refined petroleum products, combined with high plant utilization rates, is driving refineries to upgrade facilities to make them more efficient and expand capacity. In order to sustain high capacity utilization rates, customers are increasingly using asset protection solutions to efficiently ensure the integrity and safety of their assets. Implementation of asset protection solutions can also lead to increased productivity as a result of reduced maintenance-related downtime.

Increasing Corrosion from Low-Quality Inputs.Inputs. The increased availability and low cost of crude oil from areas such as shale plays and oil sands resources have led to the use of lower gradelower-grade raw materials and feedstock used in refinery and power generation processes. These lower grade raw materials and feedstock,feedstock. This leads to higher rates of corrosion, especially in the case of the refining processprocesses involving petroleum with higher sulfur content, can rapidly corrode the infrastructure with which they come into contact, which in turn increases the need for asset protection solutions to identify such corrosion and enable infrastructure owners todetect and/or proactively combat the problems caused by such corrosion.
prevent corrosion-related issues.

Increasing Use of Advanced Materials.Materials. Customers in ourvarious target markets - particularly aerospace and defense - are increasingly utilizing advanced materials, such as composites and other unique technologies in the manufacturing and construction of new infrastructure and aerospace applications. As a result, they require advanced testing, assessment and maintenance technologies to inspect and to protect these assets, since many of these advancedtheir assets. These materials often cannot be tested using traditional NDT techniques. We believe that demand for NDTmore advanced testing and assessment solutions will increase as companies and public authorities continue to usethe utilization of these advanced materials not only during the operating phase of the lifecycle of their assets, but alsoincreases during the design, manufacturing, operating and quality control phases and are more frequently integrating and embedding sensors directly into the end product in support of total life cycle asset management.
phases.

Meeting Safety Regulations.Regulations. Owners and operators of infrastructure assetsrefineries, pipelines and petrochemical and chemical plants increasingly face strict government regulations and more stringent process safety requirements.enforcement standards. This includes the continued implementation of the Occupational Safety and Health Administration’s National Emphasis Program. Failure to meet these standards can result in significant financial liabilities, increased scrutiny by Occupational Safetygovernment and Health Administration (OSHA), U.S. DOT Pipeline and Hazardous

Materials Safety Administration (PHMSA) and otherindustry regulators, higher insurance premiums and tarnished corporate brand value. There have been several industrial accidents, including explosions and fires, in recent years. These accidents created significant damage to the reputation of refineries and Pipeline Operators, and coupled with concern by owners, led OSHA/PHMSA to strengthen process safety enforcement standards with the continued implementation of the National Emphasis Program (NEP) that also extends to chemical plants for compliance with applicable regulations. As a result, these owners and operators are seeking highly reliablehighly-reliable asset protection suppliers with a proven track record of providing asset protection services, products and systems to assistassisting customers in meeting increasingly stringent regulations. Our customers benefit from our extensive engineering consulting base that supports them in meeting these increasingly stringent regulations.devising mechanical integrity programs that both meet regulatory compliance standards and enable enhanced safety and uptime at the customer's facilities.

Expanding Addressable End-Markets. Advances in NDT sensor technology and asset protection software based systems, and theEnd-Markets. The continued emergence of newand advances in asset protection technologies and software-based systems are creating increasedincreasing the demand for asset protection solutions in applications where existing techniques were previously ineffective.


Expanding Addressable Geographies. We believe that incremental demand will continue to come from international markets, including Western and Eastern Canada, Europe, Asia and parts of Latin America. Specifically, as companies and governments in these markets build and maintain infrastructure and applications that require the use of asset protection solutions, we believe demand for our solutions will increase.

Expanding Aerospace Industry. and Defense Industry. We believe that increased demand will continue to come over the next several years from the aerospacecommercial industry due to the approximately decade-long backlog for next generationnext-generation commercial aircraft to be built, driving the need for enhanced levelsadvanced solutions that drive cost and quality efficiencies. Demand continues to be stable in the defense industry while demand in the private space industry is growing.
Crude Oil Prices. Volatility in the energy sector has been profound during the 2015-2022 period with moderation occurring during 2023. The collapse of inspections.world oil prices in 2015 and 2016 undermined industry expansion. While energy prices recovered in 2017 and 2018, they once more declined, and subsequently rebounded in the second half of 2021 and the first half of 2022 with near record high prices and crack spreads. This resulted in refineries delaying turnarounds during 2022 until oil prices decreased and stabilized in the second half of 2022. The stabilization continued throughout 2023 without major peaks and fluctuations as seen in prior periods. The on-going war in Ukraine and the conflict in the Middle East between Israel and
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Hamas, coupled with continued macroeconomic uncertainty in 2024, are expected to continue to significantly influence oil prices for the foreseeable future.

Expanding Pipeline Integrity Regulations: The United States Pipeline & Hazardous Materials Safety Administration’s “Mega Rule” adopted in October 2019, expands pipeline integrity regulations on more than 500,000 miles of pipelines that carry natural gas, oil and other hazardous materials throughout the United States. Some of these requirements will take operators decades to fulfill. These regulations require inspection and integrity data records throughout a pipeline’s lifetime to be “reliable, traceable, verifiable, and complete,” increasing the demand for integrated inspection, engineering, monitoring, and data management and analysis solutions.

Consolidation of Refineries: Consolidation of refinery ownership will create both pressure on refinery service providers due to increased customer purchasing power and provide an opportunity to those same refinery service providers to become preferred providers to these larger customers.

Our Competitive Strengths
We believe the following competitive strengths contribute to our being a leading provider of asset protection solutions and will allow us to further capitalize on growth opportunities in our industry:
OneSource Provider for Asset Protection Solutions. We believe we have one of the most comprehensive portfolios of integrated asset protection solutions worldwide, which positions us to be a leading single-source provider for our customers’ asset protection requirements. This is particularly a competitive strength in regards to turnarounds and shutdowns - during which facilities temporarily cease portions of their operations in order to perform plant-wide inspections, maintenance and repairs - as the services being requested and performed during these work stoppages make up significant portions of refinery, process and power plant maintenance budgets. Demand for our solutions increases during these outages, as facilities seek third-party providers to perform a wide spectrum of asset protection operations while the plant is offline. In addition, as companies are increasingly outsourcing their NDT needs to third-party providers, we believe that the ability to offer a comprehensive package of solutions provides us with a competitive advantage.
Integrated Data Management: Our expertise and proprietary research and development in data analytical solutions throughout the asset protection cycle provides a competitive advantage. With solutions for integrated data acquisition, storage, visualization and analytics, our integrated data analytical solutions well-position us for the oil and gas increasing movement towards digitalizing and centralizing asset protection to fewer, highly-skilled and multi-disciplined vendors. Many of our data analytical solutions are platform-agnostic, allowing us to integrate into customers' existing operations, and thereby expanding the potential customer pool for our solutions. Our expertise and experience also allow us to tailor our offerings to meet specific customer needs, which sets us apart from our competitors. Our presence in our customers’ operations throughout their asset lifecycles also ideally positions us to be their primary vendor to centralize their asset integrity data collection, management and analysis, creating mutually-beneficial opportunities to scale our relationships.

Long-Standing Trusted Provider to a Diversified and Growing Customer Base. We have become a trusted partner to a large and growing customer base across numerous global markets through our proven, decades-long track record of successful operations. Our customers include some of the largest and most well-recognized firms in the oil and gas, chemicals, power generation and transmission and aerospace and defense industries, as well as public authorities.
Repository of Customer-Specific Inspection Data. Through our world-class enterprise data management and analysis software, PCMS, we have accumulated extensive, proprietary process data that allows us to provide our customers with value-added services, such as benchmarking, "RBI" and reliability-centered maintenance.
Proprietary Products, Software and Technology Packages. Our deep knowledge base in asset protection services and equipment enables us to offer technology packages, in which our field technicians utilize our proprietary and specialized testing procedures and hardware, advanced pattern recognition, neural network software and databases to compare test results against our prior testing data or national and international structural integrity standards.
Deep Domain Knowledge and Extensive Industry Experience. We have extensive asset protection experience and data, dating back several decades of operations. We have gained this through our industry leadership in developing advanced asset protection solutions, including research and development of advanced NDT technologies and applications, process engineering technologies, online plant asset integrity management with sensor fusion; and enterprise software solutions for plant-wide and fleet-wide inspection data archiving and management.
Technological Research and Development. The NDT industry continues to move towards more advanced, automated solutions, requiring service providers to find safer and more cost-efficient inspection techniques. We believe that we remain ahead of the
Offering Complementary Mechanical Services
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technological curve by backing our extensive industry expertise with the investment of resources in research and development. Some of the advanced inspection technologies developed by our internal research and development teams include an automated radiographic testing ("aRT") crawler for corrosion under insulation ("CUI") inspections in above ground pipelines and piping; our Large Structure Inspection ("LSI") scanner, and our real-time radiography ("RTR") crawler for 360° inspections of pipeline girth welds.
Collaborating with Our Customers. We have historically expanded our asset protection solution portfolio in response to our customers’ unique performance specifications. Our technology packages have often been developed in close cooperation and partnership with key customers and industry organizations.
Experienced Management Team. Our management team has a track record of asset protection organizational leadership. These individuals also have successfully driven operational growth organically and through acquisitions, which we believe is important to facilitate future growth in the asset protection industry.
Our Growth Strategy
Our growth strategy emphasizes the following key elements:
Continue to Digitalize Asset Protection Data and Processes. We place a data-centric focus on asset protection, enabling our customers to ease some of their biggest areas of concern (particularly the timely and accurate transfer of asset integrity data from the field to their IDMS, as well as the data’s visibility and accessibility once uploaded). We expect that the demand for our data analytical solutions which provides big data intelligence and remote data visibility will continue to grow, and we are investing in data analytical solutions that help our customers visualize and generate actionable insight from their asset integrity data, regardless of data input. We are also actively seeking to optimize our customers’ asset protection workflows and processes, by creating digital paths between data applications to increase data visibility and reduce manual data entry and human error.

Expand Our Focus in the Aerospace and Defense Industries. We believe that ownersthe introduction of capital assets willnext-generation airframes and aircraft engines has created an inherent demand for inspection, testing, machining and mechanical services required for the production of parts. The recent interest in the use of additive manufacturing techniques to create components also necessitates advanced inspection and testing solutions.
Expand Our Focus in the Pipeline Integrity Industry. We intend to continue broadening our solutions for the pipeline market. Recent industry regulations significantly expanded pipeline integrity management regulations, requiring pipeline owner/operators to inspect, document, and assess the risk of operating conditions for existing lines. This provides us with the opportunity to provide asset protection solutions for both the new construction and integrity phases. In 2019, we acquired a company that provides pipeline integrity management software and services to energy transportation companies. We acquired an inline inspection provider in 2018 and have implemented our PCMS software for several pipeline operators to support their integrity data management.
Expanding our Mechanical Services Portfolio. We believe that performing mechanical services to complement inspections, such as removing and reapplying insulation or preparing surfaces for coating or painting, is an important market differentiator for us. This is particularly true, for example, when considering the cost-efficiencies our customers realize when our rope access technicians perform these services at height without the use of scaffolding. Many of our customers already require these services, but utilize multiple vendors to do so, creating an opportunity for us to provide greater value to a customer base that increasingly lookrequires enhanced speed and efficiency.
Continue to Develop Technology-Enabled and Digital Asset Protection Solutions. We intend to maintain and enhance our technological leadership by continuing to invest in developing new technology, applications and data services. The release of our OneSuite ecosystem underscores our dedication to continue deepening synergies between our solutions to provide our customers with uniquely-integrated offerings, which we believe makes us a more attractive vendor for a single vendor who can providecustomers seeking to centralize their asset protection. We have actively continued to develop technologies that enhance the flow of data throughout multiple operational phases and facilities, through our integrated pipeline integrity data portfolio, and our cloud-based monitoring data portal.
Expand our Solution Offerings to Existing Customers. We believe that branching into adjacent, complementary services, such as mechanical services, increases our value proposition and our ability to capture additional business. Many of our customers are multinational corporations with asset protection requirements at multiple locations. We believe that expanding our solution offerings and merging and visualizing data across facilities for enterprise data analysis, combined with the trend of customers outsourcing asset protection to service providers with integrated offerings, provides opportunities for significant additional recurring revenues.

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Continue to Expand Our Customer Base into New End Markets. We believe we have significant opportunities to expand our customer base in relatively new end markets, including the renewable energy industry, specifically, wind and other alternative energy, natural gas transportation industries, pipeline integrity and additive manufacturing. The expansion of our addressable markets is being driven by the increased recognition and adoption of advanced asset protection technologies (such as unmanned drone inspection devices, robotics, etc.) that are supplanting traditional methods.

Capitalize on Acquisitions. We have completed several acquisitions to supplement and enhance our solutions, add new customers, expand our sales channels and accelerate our expected growth. Due to our current debt levels and restrictions related to the debt covenants in our credit facility, we do not expect to make any acquisitions in 2024 other than small acquisitions with the banks’ approval. However, once we reduce our debt, we expect to make selective acquisitions beyond 2024.

Our Segments
We have three operating segments: (i) North America (which we previously referred to as our Services segment), (ii) International and (iii) Products and Systems:
North America provides asset protection solutions with the largest concentration in the United States, followed by Canada, consisting primarily of NDT, inspection, mechanical and engineering services that are complementaryused to inspectionevaluate the structural integrity and reliability of critical energy, industrial and public infrastructure and commercial aerospace components. Software, digital and data services suchare included in this segment.

International offers services, products and systems similar to those of the other segments to select markets within Europe, the Middle East, Africa, Asia and South America, but not to customers in China and South Korea, which are served by the Products and Systems segment
Products and Systems designs, manufactures, sells, installs and services the Company’s asset protection products and systems, including equipment and instrumentation, predominantly in the United States.

For a discussion of segment revenues, operating results and other financial information, including geographic areas in which we generated revenues, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Item 7, as removing insulationwell as Note 2-Revenueand Note 19-Segment Disclosure in orderthe notes to inspect piping, then reinstalling insulation.our audited consolidated financial statements in Item 8 of this Annual Report.
Revenue Overview
 
We believe thatRevenue by Industry
The following charts represent our disaggregated revenue by industry for the market available to us will continue to grow as these macro-market trends continue to develop.years ended December 31, 2023, 2022 and 2021.

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46392
46394
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2199023421464

Our Target Markets

Overview
 
Mistras operatesWe operate in a highly competitive, but fragmented market. Domestically, the market is serviced by several national competitors and many regional and/or local companies. Internationally, our primary competitors are divisions of large companies, with additional competition from small independent local companies which may be limited to a specific product, service or technology and focused on a niche market or geographic region. We focus our strategic sales, marketing and product development efforts on a range of infrastructure-intensive based industries and governmental authorities. We view energy-related infrastructure and commercial aerospace as the Company'sour largest market opportunities. We perform inspection and mechanical services for customers in both industries.

Our revenues are comprised of services offerings at our laboratories and at customer facilities. Data Analytical Solutions revenues are comprised of revenue derived from data software sales & subscriptions, implementation services and analytics that offer insights and recommendations to improve asset integrity. Data Analytical Solutions revenue is derived from work performed by Mistras employees in our facilities, or at customer locations, using our proprietary portfolio of software applications. Field Services revenues are comprised of revenue derived primarily by technicians performing asset inspections and maintenance services for our customers at locations other than Mistras properties. Shop Laboratory revenues are comprised of quality assurance inspections of components and materials at our Mistras in-house laboratory facilities. Other revenues are comprised of locations that perform both asset inspection services and testing of components and materials at in-house Mistras laboratories.

There are a number of economic factors which drive the aerospace market, including:
The multi-year backlog for next generation commercial aircraft to be built, including several large and mid-sized aircraft built by Boeing and Airbus, among other manufacturers; and
The continuing regulatory scrutiny to ensure public safety serves to ensure the continued need for inspection and mechanical services to be performed.
 
In the energy market, there are various economic indicators that drive our business, especially in the U.S. domestic markets. These factorsIt is unclear what the short and long term effects of the war between Russia and Ukraine is likely to have on the world economy and certain of our target markets, including particularly the oil and gas market. Excerpted below are excerpted belowforecasts from various Energy Information Administration (EIA) outlook reports;reports, which are subject to change based on these factors:


Natural gas prices are expected to remain less expensive than electric prices for commercial, industrial and residential customers. The use
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Electricity generation from coal is projected to growfall throughout the most onmid 2020s and the decrease will be partially offset by an absolute basis. Natural gas production will grow at a faster rate through 2020, and thereafter grow at a slower pace. Natural gas used for power generation will generally increase over the time period due to the scheduled expiration of renewable tax credits. The industrial sector accounts for the most growth in natural gas consumption, with expanding use in the chemical industries; for industrial heatforecast of combined utility-scale solar and power; and for liquefied natural gas production. Natural gas consumption also increases significantly in the power sector as a result of the scheduled expiration of renewables tax credits in the mid-2020s. In its monthly short-term energy outlook dated December 12, 2017, the agency forecast thatwind generation.

The EIA noted U.S. crude oil output will rise by 780,000production averaged 11.9 million barrels per day (bpd) in 2022 and rose to 10.02an average 12.9 million bpd in 2018, which would be the highest level for any year on record2023. The EIA forecasts production to continue to increase to an average 13.3 million bpd in the United States.2024 and further increase to 13.5 million bpd in 2025.

There are a number of economic factors which drive the aerospace market, including:
The approximately decade-long backlog for next generation commercial aircraft to be built, including several large and mid-sized aircraft built by Boeing, Airbus, Bombardier and Embraer, among other manufacturers;

The backlog of next generation aircraft engines which operate with greater fuel efficiency, including the LEAP engine and the geared-turbo fan engine;
The continuing regulatory scrutiny to ensure public safety associated with these new technologically advanced aircraft, which serves to ensure continued need for inspection and mechanical services to be performed, as well as to limit the number of participants who can meet the demanding requirements associated with performing these services.

Revenue by Target Market
The following chart represents the percentage of consolidated revenues we generated from our various markets for the year ended December 31, 2017:

Mistras Revenues by Target Market
(Year ended December 31, 2017)



Oil and Gas

We supply oil and gas asset protection solutions to downstream (refining), midstream (transportation and storage) and upstream (exploration and production) operations.
Recently crude oil prices have begunWe use our vast solutions portfolio to rebound which shouldhelp identify current and future asset performance, and actively prevent, mitigate or otherwise address potential issues, including corrosion, cracking, leaking and other damages that may lead to increase spending on maintenance shutdownssafety, productivity or environmental concerns. Our solutions help identify conditions that if not remedied, could lead to potential catastrophic failures in 2018tanks, vessels, valves, buried and 2019. This increased demand will be balanced againstabove ground pipelines, pumps, motors, compressors and other critical assets found throughout the continued focus on process efficienciesoil and cost savings initiatives. On-linegas production and delivery supply chain.
We actively seek to evolve our solutions through technological enhancements and research and development to discover new applications. Online monitoring and permanently mountedpermanently-mounted sensors, as well as the use of drones and other alternative delivery devices, are all being considered as the Oiloil and Gasgas infrastructure owners look to “smart” technologies that reduce human intervention while delivering highly accurate datahighly-accurate inspection and integrity data. We also have actively sought to aid in their operational decisions. This helps to drive demand forfurther enhance our integrated approach to asset protection. protection, through the development of our complementary mechanical service portfolio.
In general, the oil and gas market is poised to leverage digital solutions to facilitate process improvements as well as increase plant reliability and improve process and personnel safety. This provides an opportunity for us to synergistically leverage our digital asset protection solutions. Digital transmission of data in various industry sectors, with built-in analytic functions, will allow our customers to better leverage inspection data that is being generated in the field.
While we expect off-stream inspection of vessels and piping during a plant shut-down or turnaroundcritical assets to remain a routine practice, by companies in these industries, we anticipate this practice will decrease as owners utilizean increase in the demand for non-invasive or on-stream inspections, of critical assets.inspections. Non-invasive inspections enablesenable companies to minimize the costs associated with shutdownsshutting down equipment during testing, while enabling the economic and safety advantages of advanced planning and/or predictive maintenance.

Aerospace and Defense

The aerospace industry is enjoying unprecedented growthcontinued to rebound from COVID-19 throughout 2023 with many original equipment manufacturers (OEMs) reporting record backlogs of up to ten years.backlog and production levels approaching and exceeding pre-pandemic levels for certain OEMs for the first time since the pandemic. We serve this rapidly growing target market by providing our state of the art fully integrated inspection systems to OEMs. For the OEM that prefers to outsource this inspection, we provide a full range of inspection, testing, machining, mechanical, finishing, additive manufacturing and equipment solutions, for which we are Nadcap certified. Our state-of-the-art in-house services through our various regional facilities. These facilities have obtained andlaboratories maintain numerous accreditations from industry organizations, including Nadcap, and certifications required to meet the stringent inspection criteria that the aerospace industry demands.


The operational safety, reliability, structural integrity and maintenance of aircraft and associated products is critical to the aerospace and defense industries. Manysome of the OEM’s are positioning themselves to use sensor technology to deliver data that may aidlargest manufacturers in driving decisions regarding structuralthe world, such as Boeing, Safran, Airbus, Bombardier and operational integrity of the aircraft as opposed to performing maintenance on time based intervals. Industry participants use asset protection solutions for the inspection of advanced compositesEmbraer.
Advanced composite materials found in new classes of aircraft require advanced asset protection solutions, including x-ray of critical engine components, ultrasonic fatigue testing of complete aircraft structures and corrosion detection and on-board monitoring of landing gear and other critical components. Many OEMs are shifting towards condition-based maintenance utilizing embedded monitoring sensors to track component structural and operational integrity over time as opposed to performing maintenance on time-based intervals. We expect increased demand for our solutions to result from wider useincrease with the adoption of advanced compositesthese new-age materials and distributed on-lineonline sensor networksnetworks. We also expect demand for asset protection solutions to increase with the continued adoption of additive manufacturing techniques.
Industrials
The quality control requirements driven by the need for zero-to-low-defect component tolerance within automated, robotic-intensive industries such as automotive, consumer electronics and other embedded analytical applications built intomedical industries serve as key drivers for increased demand in asset protection, particularly for in-house inspection and testing. We expect that increasingly stringent quality-control requirements and competitive forces will drive the structure of assets that enable real-time performance monitoringdemand for more-costly finishing and condition-based maintenance.

polishing which, in turn, creates opportunities for integrated partnerships between us and our customers throughout the production lifecycle.
Power Generation and Transmission
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The growing availability of cheap natural gas, along with environmental concerns with coal has stimulated the construction of new natural gas fired power plants across North America. Our Asset Integrity Management approach offers many tools that aidWe provide asset protection solutions for customers in the establishment of integrity programs during plant construction using software model. In addition, actual construction drives traditionalcombined cycle, fossil, nuclear, transmission and Advanced NDT services. We anticipate sharp growth in the plants as natural gas pricing remains low,distribution and the environmental impacts of coal remain unattractive to the public. Asset protection in the power industry has traditionally been associated with the inspection of high-energy, critical steam piping, boilers, rotating equipment, and various other plant components (balance of plant), utility aerial man-lift devices, large transformer testing and various other applications for nuclear and fossil-fuel based power plants.wind/alternative energy industries. We believe that in recent years, the acceptance of asset protection solutions has grown in this industry due to the aging of critical power generation and transmission infrastructure.

The growing availability of cheap natural gas, along with environmental concerns with coal, has stimulated the construction of new natural gas-fired power plants across North America, creating opportunities for us to provide specialized solutions in multiple phases. These include facility design consultations, NDT services during construction and plant operations and long-term condition monitoring. We anticipate sharp growth in these types of plants as natural gas pricing remains low, and the environmental impacts of coal remain unattractive to the public.

We also offer solutions for inspection, maintenance, monitoring and data services for wind turbines and their components. These include NDT services — often performed through rope and/or drone access — to identify corrosion, cracking, and other defects that can affect the safety and operational effectiveness of wind turbines, along with remedial solutions to repair minor damages identified during inspections.

Other Process Industries
TheOur asset protection solutions are crucial for process industries, or industries in which raw materials are treated or prepared in a series of stages, includeincluding chemicals, pharmaceuticals, food processing, paperpulp and pulppaper and metals and mining, have a need for our products and services.mining. As with oil and gas processingthe process facilities chemical processing facilities require significant spending on maintenance and monitoring. Given theirare increasingly facing aging infrastructure, and high utilization, requirements, growing capacity constraints and increasing capital costs, we believe asset protection solutions will continue to grow in importance in maintenance planning, quality and cost control and prevention of catastrophic failure in the chemicals industry.failure.
Public Infrastructure, Research and Engineering
We believe that high profilehigh-profile infrastructure catastrophes such as the collapse of the I-35W Mississippi River Bridge in Minneapolis and others since, have caused public authorities to more actively seek ways to prevent similar events from occurring. Public authorities tasked with new construction and maintenance of existing public infrastructure increasingly use asset protection solutions to inspect these assets, including the use of embedded sensors to enable on-lineonline monitoring throughout the life of the asset. This is a target market for our application technology and experience. Over the last twenty years, we
We have provided testing and structural health monitoring and data analytical solutions on many bridges and structures worldwide, among which includeincluding some of the largest and most well-known bridges in the United States and United Kingdom. In fiscal 2015, for example, we installed several wire break systems complete with multipleOur sensors types (known as sensor fusion). These bridgescontinuously monitor these assets, alerting owner/operators when defects are being monitored continuously and automatically, alerting the bridge owner when a crack is detected. Other services are offered, including internet and cloud data transfer, secure web sites andOur monitoring contracts thatteams also provide for “around the clock monitoring” and regular reports which provide information on the status of the bridge andthat include early detectionwarnings of suspect areas that can be identified and repaired before an alarm is generated.
Petrochemical
We continue to provide these monitoringasset protection NDT services worldwide.
Industrial
The quality control requirements driven byfor customers within the need for zero to low defect component tolerance within automated robotic intensive industriespetrochemical industry, as they transform byproducts into goods which are utilized in many end products such as automotive, consumer electronicsplastics, soaps, fertilizers, synthetic fibers and medical industries, serve as key drivers for the recent growth of NDT technologies, such as ultrasonicsrubber. Our solutions help identify conditions that if not remedied, could lead to potential catastrophic failures in tanks, vessels, valves, buried and radiography. We expect that increasingly stringent quality control requirementsabove ground pipelines, pumps, motors, compressors and competitive forces will drive the demand for more costly finishing and polishing which, in turn, may promote greater use of NDTother critical assets found throughout the petrochemical production lifecycle.
Our Competitive Strengths
process.
We believe the following competitive strengths contributeactively seek to evolve our being a leading provider of asset protection solutions through technological enhancements and will allowR&D to discover new applications. Online monitoring and permanently-mounted sensors provide real-time data to petrochemical owners and operators and provide an opportunity for us to further capitalize on growth opportunities in our industry:

One Source Provider for Asset Protection Solutions® Worldwide. We believe we have the most comprehensive portfolio of proprietary and integrated asset protection solutions, including inspection, mechanical and engineering services, products and systems worldwide, which positions us to be the leading single source provider for a customer’s asset protection requirements. Through our network of approximately 120 offices, supplemented by independent representatives in 14 countries around the world, we offer an extensive portfolio of solutions that enables our customers to consolidate their inspection and maintenance requirements and the associated data storage and analytics on a single system that spans the customers’ entire enterprise.

Long-Standing Trusted Provider to a Diversified and Growing Customer Base. By providing critical and reliable NDT services, products and systems for more than 30 years and expandingsynergistically leverage our asset protection solutions we have become a trusted partner to a large and growing customer base across numerous infrastructure-intensive industries globally. Our customers include someinto our MISTRAS Digital platform, OneSuite. Digital transmission of the largest and most well-recognized firms in the oil and gas, chemicals, fossil and nuclear power, and aerospace and defense industries as well as some of the largest public authorities.
Repository of Customer-Specific Inspection Data. Our enterprise data management and analysis software, PCMS, enables us to capture, warehouse, manage and analyze our customers’ testing and inspection data in a centralized relational database. As a result, we have accumulated large amounts of proprietary process data and information that allows us to provide our customersvarious industry sectors, with value-added services, such as benchmarking, risk-based inspection and reliability centered maintenance solutions including predictive maintenance, inspection scheduling, data analytics and regulatory compliance.
Proprietary Products, Software and Technology Packages. We have developed systems that have become the cornerstone of several high value-added unique NDT applications, such as those used for the testing of above-ground storage tanks (the TANKPAC® technology package). These proprietary products allow us to efficiently and effectively provide highly valued solutions to our customers’ complex applications, resulting in a significant competitive advantage. In addition to the proprietary products and systems that we sell to customers on a stand-alone basis, we also develop a range of proprietary sensors, instruments, systems and software used exclusively by our Services segment.
Deep Domain Knowledge and Extensive Industry Experience. In the field of asset protection, we have long and extensive experience and have accumulated vasts amount of data and knowledge. We have gained this through our industry leadership in developing advanced asset protection solutions, including acoustic emission testing for non-intrusive on-line monitoring of storage tanks and pressure vessels, bridges and transformers, portable corrosion mapping, ultrasonic testing (UT) systems, on-line plant asset integrity management with sensor fusion, enterprise software solutions for plant-wide and fleet-wide inspection data archiving and management, advanced and thick composites inspection and ultrasonic phased array inspection of thick wall boilers.
Collaborating with Our Customers. Our asset protection solutions have historically been designed in response to our customers’ unique performance specifications and are supported by our proprietary technologies. Important technology packages, such as TANKPACfor tank floor corrosion detection and Acoustic Turbine Monitoring System (ACTMS), were developed in close cooperation and partnership with key Mistras customers. Our sales and engineering teams work closely with our customers’ research and design staff during the design phase in order to incorporate our products into specified infrastructure projects, as well as with facilities maintenance personnel to ensure that we are able to provide the asset protection solutions necessary to meet these customers’ changing demands.
Experienced Management Team. Our management team has a track record of leadership in NDT, DT, PdM and engineering services, averaging over 20 years of experience in the industry. These individuals also have extensive experience in growing businesses organically and in acquiring and integrating companies, which we believe is important to facilitate future growth in the fragmented asset protection industry. In addition, our senior managers are supported by highly experienced managers who are responsible for delivering our solutions to customers.
Our Growth Strategy
Our growth strategy emphasizes the following key elements:
Continue to Develop Technology-Enabled Asset Protection Services, Products, Software and Systems. We intend to maintain and enhance our technological leadership by continuing to invest in the internal development of new services, products, software and systems. Our highly trained team of Ph.D.’s, engineers, application software

developers and certified technicians has been instrumental in developing numerous significant asset protection standards. We believe their knowledge basebuilt-in analytic functions, will continue to enable us to innovate a wide range of new asset protection solutions.
Expand our Service Offerings to Existing Customers. By branching into adjacent mechanical services, we believe we are providing customers with greater value, which increases our value proposition and our ability to capture additional business. Many of our customers are multinational corporations with asset protection requirements from multiple divisions at multiple locations across the globe. Currently, we believe we capture a relatively small portion of their overall expenditures. We believe our expanded services offerings, coupled with our products and systems, and combined with the trend of outsourcing asset protection solutions to a small number of trusted service providers, positions us to significantly expand both the number of divisions and locations that we serve as well as the types of solutions we provide. We strive to be the preferred global partner for our customers and aim to become the single source provider for their asset protection solution requirements.
Expand our Focus in the Aerospace Industry. We believe that the recent introduction of next generation airframes and aircraft engines has created an inherent demand for inspection and mechanical services required for the production of parts that support their build for years to come. Mistras Group has been an active participant in this market for several years. The Company consummated two acquisitions of aerospace inspection companies in 2017 and won a key European contract in 2016. These recent actions are driven by our increased focus in this growing area.
Continue to Expand Our Customer Base into New End Markets. We believe we have significant opportunities to expand our customer base in relatively new end markets, including nuclear, wind turbine and other alternative energy and natural gas transportation industries. The expansion of our addressable markets is being driven by the increased recognition and adoption of asset protection services, products and systems, and new NDT technologies enabling further applications in industries such as compressed and liquefied natural gas transportation, and the aging of infrastructure, such as construction and loading cranes and ports, to the point where visual inspection has proven inadequate and new asset protection solutions are required. We expect to continue to expand our global sales organization, grow our inspection data management and data mining services and find new high-value applications. As companies in these emerging end markets realize the benefits of our asset protection solutions, we expect to expand our leadership position by addressing customer needs and winning new business.
Continue to Capitalize on Acquisitions. We intend to continue employing a disciplined acquisition strategy to broaden, complement and enhance our service offerings, add new customers, expand our sales channels, supplement our internal development efforts and accelerate our expected growth. We believe the market for asset protection solutions is highly fragmented with a large number of potential acquisition opportunities. We have a proven ability to integrate complementary businesses, as demonstrated by the success of our past acquisitions, which have often contributed new or supplemented existing services that have added to our revenues and profitability.
Our Segments
The Company has three operating segments:
Services. This segment provides asset protection solutions predominantly in North America, with the largest concentration in the United States, consisting primarily of non-destructive testing, inspection, mechanical and engineering services that are used to evaluate the structural integrity and reliability of critical energy, industrial and public infrastructure.
International. This segment offers services, products and systems similar to those of our Services and Products and Systems segments to select markets within Europe, the Middle East, Africa, Asia and South America, but not to customers in China and South Korea, which are served by our Products and Systems segment.

Products and Systems. This segment designs, manufactures, sells, installs and services our asset protection products and systems, including equipment and instrumentation, predominantly in the United States.
For discussion of segment revenues, operating results and other financial information, including geographic areas in which we generated revenues, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Item 7, as well as Note 19 - Segment Disclosure in the notes to consolidated financial statements in Item 8 of this Annual Report.
Our Solutions

We offer our customers “one source for asset protection solutions”® and are a leading global provider of technology-enabled asset protection solutions used to evaluate the structural integrity and reliability of critical energy, industrial and public infrastructure. We combine industry-leading products and technologies, expertise in MI, NDT, DT, mechanical and PdM services, process and fixed asset engineering and consulting services,  and our world class enterprise inspection database management and analysis software PCMS, to deliver a comprehensive portfolio of customized solutions, ranging from routine inspections to complex, plant-wide asset integrity management and assessments. We deliver our solutions through a combination of services and products and systems.
Our Services
Our Services segment provides a range of testing, inspection and mechanical services to a diversified customer base across energy-related, aerospace, industrial and public infrastructure industries. We either deploy our services directly at the customer’s location or through our own extensive network of field testing facilities. Our footprint allows us to provide asset protection solutions through local offices in close proximity to our customers, permitting us to keep response time, and travel, living and per diem costs to a minimum, while maximizing our ability to develop meaningful, collaborative customer relationships. Examples of our comprehensive portfolio of services include: testing components of new construction as they are built or assembled; providing corrosion monitoring data to help customers determine whether to repair or retire infrastructure; providing material analysis to ensure the integrity of infrastructure components; and supplying non-invasive on-stream techniques that enable our customers to pinpoint potential problem areas prior to failure. In addition, we also provide services to assist in the planning and scheduling of resources for repairs and maintenance activities. Our experienced inspection professionals perform these services, supported by our advanced proprietary software and hardware products. We are also looking to expand our capabilities to offer mechanical services that are complementary to our inspection services. Examples of our services are discussed below.
Traditional NDT Services
Our certified personnel provide a range of traditional inspection services. For example, our visual inspections provide comprehensive assessments of the condition of our customers’ plant equipment during capital construction projects and maintenance shutdowns. Of the broad set of traditional NDT techniques that we provide, several lend themselves to integration with our other offerings and often serve as the initial entry point to more advanced customer engagements. For example, we provide a comprehensive program for the inspection of above-ground storage tanks designed to meet stringent industry standards for the inspection, repair, alteration and reconstruction of oil and petrochemical storage tanks. This program includes magnetic flux exclusion for the rapid detection of floor plate corrosion, advanced ultrasonic systems and leak detection of floor defects, remote ultrasonic crawlers for shell and roof inspections and trained, certified inspectors for visual inspection and documentation.
Advanced NDT Services
In addition to traditional NDT services, we provide a broad range of proprietary advanced NDT services that we offer on a stand-alone basis or in combination with software solutions such as our proprietary enterprise inspection data management and plant condition monitoring software and systems (PCMS). We also provide on-line monitoring capabilities and other solutions that enable the delivery of accurate and real-time information to our customers. Our advanced NDT services require more complex equipment and more highly skilled inspection professionals to operate this equipment and interpret test results. Some of the technologies and techniques we use include automated ultrasonic testing, guided ultrasonic long wave testing, phased array ultrasonic testing, risk-based inspection (RBI) and computed and digital radiography.
Mechanical Integrity Services
We provide a broad range of MI services that enable our customers to meet stringent regulatory requirements. These services increase plant safety, minimize unscheduled downtime and allow our customers to plan for, repair and replace critical components and systems before failure occurs. Our services are designedbetter leverage inspection data that is being generated in the field. We also have actively sought to complement a comprehensive predictive and preventative inspection and maintenance program that we can provide forfurther enhance our customers in additionintegrated approach to asset protection, through the MI services. Customersdevelopment of our MI services, in many instances, also have licensed our PCMS software, which allows for the storage and analysis of data captured by our testing and inspection products and services, and implemented this solution to complement our inspection services.
As a result of the information captured by PCMS and its risk-based inspection software module, we are able to provide a professionalcomplementary mechanical service known as “Mechanical Integrity Gap Analysis” for process facilities. Our Mechanical Integrity Gap

Analysis service offers insight into the level of plant readiness, how best to manage and monitor the integrity of process facility assets, and how to extend the useful lives of such assets. Our Mechanical Integrity Gap Analysis service also assists customers in benchmarking and managing their infrastructure through key performance indicators and other metrics.
Destructive Testing Services
We provide a wide range of destructive testing (DT) services in select locations. Hardness, stiffness and strength are a few key indicators drawn from destructive tests per customer specifications. DT is performed for an array of destructive testing applications utilized throughout the materials selection and approval process in the aerospace, automotive, chemical, oil and gas and power generation industries. Example testing includes:
Mechanical tests — Materials, specimens and even composites are subjected to increasing levels of tension, compression, shear and peeling until failure. There are a number of variations of mechanical testing in which adding temperature, strain, unidirectional load or shear can provide useful results.
Physical/Chemical — Used to examine specific material and thermal characteristics as well as chemical compositions, including differential scanning calorimetry (DSC), high performance liquid chromatography, fiber volume content and fourier transformation infrared spectroscopy (FTIR).
Materialography — Gives an insight into the geometries of structural composites, which presents an inside track with regards to determining failure mechanisms and asset lifespan expectations.
Our Products and Systems
We provide a range of acoustic emission (AE) products and are a leader in the design and manufacture of AE sensors, instruments and turn-key systems used for monitoring and testing materials, pressure components, processes and structures. Though we principally sell our products as a system, which includes a combination of sensors, an amplifier, signal processing electronics, knowledge-based software and decision and feedback electronics, we can also sell these as individual components to certain customers that have the in-house expertise to perform their own services. Our sensors “listen” to structures and materials to detect real-time AE activity and to determine the presence of active corrosion, crack propagation and other structural flaws in the inspected materials. Such structures include pressure vessels, storage tanks, heat exchangers, piping, turbine blades and reactors.
In addition, we provide leak monitoring and detection systems used in diverse applications, including the detection and location of both gaseous and liquid leaks in valves, vessels, pipelines, boilers and tanks. AE leak monitoring and detection, when applied in a systematic preventive maintenance program, has proven to substantially reduce costs by eliminating the need for visual valve inspection and unscheduled down-time.

We design, manufacture and market a complete line of ultrasonic equipment. While AE technology detects flaws and pinpoints their location, our UT technology has the ability to size defects in three-dimensional geometric representations. Our line of UT systems include various Automated UT scanners, our unique portable UT handheld and tablet systems with motion control to run our many inspection scanners, and our immersion systems ranging from small bench top units to large UT systems over 55 feet long and large production unit gantry systems.
We provide a wide array of digital radiographic systems to solve specific industrial problems, including Computed Radiography (CR), Real-Time Radiography (RTR), Direct Radiography (DR), and Computed Tomography (CT). Digital Radiography is one of the newer forms of radiographic imaging. Thickness profiles of piping systems, both insulated and un-insulated, are performed using computed radiography, while large production runs of smaller parts are inspected using direct radiography. Real time radiography is utilized for large “real time” inspections of insulated piping systems to identify areas of pipe degradation.

Technology Solutions
In order to address some of the more common problems faced by our customers, we have developed a number of robust technology solutions. These packages generally allow more rapid and effective testing of infrastructure because they minimize the need for service professionals to customize and integrate asset protection solutions with the infrastructure and interpret test results. These packaged solutions use proprietary and specialized testing procedures and hardware, advanced pattern recognition, neural network software and databases to compare test results against our prior testing data or national and international structural integrity standards. One such package is our ACTMS (Acoustic Combustion Turbine Monitoring System), an on-line system to detect stator blade cracks in gas turbines. Others include TANKPAC for tank inspections, POWERPAC for monitoring discharges in critical power grid transformers, and the AMS boiler tube leak detection and location monitoring system.
Software Solutions

Our software solutions are designed to meet the demands of our customers inspection data management, risk management, data analysis and asset integrity management requirements. We address these requirements using best in class database management systems and applying enterprise based inspection and data management applications. We apply our comprehensive portfolio of customized Acoustic Emission and Ultrasonic application-specific software products to cover a broad range of materials testing and analysis methods, for neural networks, pattern recognition, wavelet analysis and moment tensor analysis. Some of the key software solutions we offer include:
PCMS enterprise software: A leading inspection data management system for supporting asset protection and reliability.
ISOTRAC: A multiphase methodology to illustrate in 3-D each element of a plant to help develop an overall asset integrity management program that meets or exceeds compliance with current MI standards and regulations.

Our PCMS application is an enterprise software system that allows for the collection, storage and analysis of data as captured by our testing and inspection products and services and convert it to valuable information for our plant personnel and plant management. PCMS allows our customers to design and develop asset integrity management monitoring plans that include:

optimal systematic testing schedules for their infrastructure based on real-time data captured by our sensors;
alerts that notify customers when to perform special testing services on suspect areas, enabling them to identify and resolve flaws on a timely basis by using our PCMS risk-based inspection (RBI) software module; and
schedules for the maintenance and retirement of assets.
PCMS also offers advantages by allowing the information it develops and stores to be organized, linked and synchronized with enterprise software systems such as SAP and IBM’s Maximo. We believe PCMS is one of the more widely used plant condition management software systems in the world and we estimate it is currently used by more than 40% of U.S. refineries, by capacity. This provides us not only with recurring maintenance and support fees, but also marketing opportunities for additional software, asset integrity management and other asset protection solutions. PCMS has also been chosen and installed by leading midstream pipeline energy companies and major energy companies in Canada and Europe.
We also offer other software solutions, such as our Advanced Data Analysis Pattern Recognition and Neural Networks Software (NOESIS), which enables our AE experts to develop automated remote monitoring systems for our customers, and our Loose Parts Monitoring Software (LPMS), which is a software program for monitoring, detecting and evaluating metallic loose parts in nuclear reactor coolant systems in accordance with strict industry standards.

Engineering and Consulting Services
In addition to software and advanced technologies, Mistras also provides professional engineering and consulting services that is organized under our Asset Integrity Management Services (AIMS) group. Asset integrity management refers to the management system that enables plant owners to maintain the integrity of their assets in a fit for service condition for the desired life of the assets, as well as optimize the assets that are part of a process unit. Our engineering and consulting support capabilities include plant operations support, turn-around planning, project planning, management and execution, facilities planning studies, engineering design, safety reviews, plant operations improvement and optimization evaluations, and technical training.

On-line Monitoring

Our on-line monitoring offerings combine all of our asset protection services, products and systems. We provide temporary, periodic and continuous monitoring of static infrastructures such as bridges, pipes, and transformers, as well as dynamic or rotating assets such as pumps, motors, gearboxes, steam and gas turbines. Temporary monitoring is typically used when there is a known defect or problem and the condition needs to be monitored until repaired or new equipment can be placed in service. Periodic monitoring, or “walk around” monitoring, is used as a preventative maintenance tool to take machine and device readings, on a periodic basis, to observe any change in the assets’ condition, such as increased vibration or unusual heat buildup and dissipation. Continuous monitoring is applied “24/7” on critical assets to observe the earliest onset of a defect and to track its progression to avoid catastrophic failure.

Centers of Excellence

Another differentiator in our business model are our Centers of Excellence (COEs), which focus on specific aspects of inspection technology. The COEs are focused around target applications in our key market segments. They are supported by subject matter experts that will engage in strategic sales opportunities offering customers value-added solutions using advanced technologies and methods providing oversight, management and consultation. The COEs have a blueprint for their areas that can be replicated throughout the world by delivering procedures, equipment, reports, certifications, etc. ensuring a standardized approach to implementation yielding higher margin business.

portfolio.
Customers
 
We provide our asset protection solutions to a global customer base of diverse companies primarily in our target markets. OneNo customer BP plc., accounted for approximately 11%, 12% andrepresented 10% or more of our total revenues forrevenue in any of the yearyears ended December 31, 2017, the transition period ended December 31, 20162023, 2022 or 2021.

Geographic Areas

We have operations in 10 countries and fiscal 2016, respectively. No customer accounted for more than 10%occasionally conduct business in a few other countries. Most of our revenues in fiscal 2015.

Geographic Areas
We conduct our business in 14 different countries. Our revenues are primarily derived from our U.S., Canadian and European operations.operations and we do not have operations in Russia, and we do not do business in Russia, Ukraine or other areas which are impacted by the Russian invasion of Ukraine. See Note 19 — Segment2-Revenue and Note 19-Segment Disclosure to theour audited consolidated financial statements in this Annual Report for further disclosure of our revenues, long-lived assets and other financial information regarding our international operations.

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Sales and Marketing
 
We sell our asset protection solutions through our direct sales and marketing activities worldwide. In addition, our project and laboratory managers, as well as our management, are trained on our solutions and often are the source of sales leads and customer contacts. Our direct sales and marketing teams work closely with our customers to demonstrate the benefits and capabilities of our asset protection solutions, refine our asset protection solutions based on changing market and customer needs and identify potential opportunities. We divide our sales and marketing efforts into services sales, products and systems sales and marketing and utilize marketing automation and customer relationship management ("CRM") systems to collect, manage and collaborate customer information with our teams globally. Our CRM systems also provide critical data to provide accurate forecasting and reporting.
Manufacturing
Most of our hardware products are manufactured in our Princeton Junction, New Jersey facility. This facility includes the capabilities and personnel to fully produce all of our AE products and NDT Automation Ultrasonic equipment. We also design and manufacture automated ultrasonic systems and scanners in France.

Human Capital

As of December 31, 2023, we had approximately 4,800 employees worldwide, of which 3,200 were located in the United States, 500 in Canada and 1,100 in our other non-U.S. locations. Our employees include full and part time employees throughout our organization. As described below, we value our employees and have established various programs to promote the satisfaction, health and safety of our employees. Less than 0.01% of our employees in the United States are unionized.

Our employees are key to achieving our goals and strategy. We have committed resources throughout our organization to ensure that we are attracting, developing, and retaining talented employees needed to support all aspects of our activities. Our core values and business ethics guide and direct all activities undertaken by us.

The health and safety of our employees is paramount. We have also developed key initiatives and strategies regarding our talent and people initiatives. Below, we describe some of the key initiatives and values around health and safety. Management regularly updates our Board of Directors with regards to our safety and people strategy and how we are performing in these areas. In 2020, our Board established the Environmental, Social and Safety Committee. This Committee, which consists of independent directors, monitors and oversees the strategic direction of our initiatives in support of our core values and our environmental, social and governance initiatives.

Talent, Leadership and Employee Development

Employee development and engagement begins with our senior management team, which has considerable industry experience and expertise. Leveraging this experience and expertise, our senior management team is able to continuously review our organizational structure and provide opportunities for the growth and development for our employees.

As part of our continued commitment to our employees, we have established various programs to promote lifelong learning and development opportunities for our employees. These include a mix of voluntary and mandatory training programs, which are provided in-person, virtually or on the job. We also provide employees the ability to continue to gain additional professional certifications to contribute to their career advancement. We utilize a web-based training center which is available to field technicians for career advancement and includes over 500 web-based classes. In addition, we are committed to ensuring all employees are compensated at a living wage. All local minimum wage requirements are met and where no wage laws are in place, employees are compensated competitively, in accordance with industry standards.

Our human rights policy places a high priority on diversity and equal opportunity and provides our employees with management’s expectations related to human rights and labor practices.

Another program we instituted focuses on our connection by a common thread of caring – about one another, our customers, the environment, and the work we do. We seek to foster a culture of togetherness, safety, respect, and contribution which enables each individual member to feel that he or she is a part of something bigger. A community of caring professionals with a genuine passion for helping people and making a difference together – that is the heart of the program we call “Caring Connects.”

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Our Safety-Conscious Culture

We consider safety the backbone of our operations. Our asset protection solutions aim to ensure that industrial assets and facilities remain in safe, reliable working condition, which in turn enhances safety for our customers, the public, and the environment. Our laboratory and field personnel are trained to operate according to strict safety and quality standards so that our processes and procedures regarding hazardous materials, worker safety, and accident prevention are sound and effective. Further to this, we are constantly evaluating these processes and procedures to ensure that they remain of high quality and are effective, and we consider changes in the manner in which work is performed or lessons that have been learned from any sources, such as industry data. We work to help ensure that our customers are in full compliance with all federal, state, and local regulations. Our practices, policies and procedures are designed to help ensure we perform our duties through the use of safe, industry-best practices, seeking to minimize risk wherever possible.

We emphasize a “MISTRAS’ safety-conscious” culture with the intent that it becomes embedded in the day-to-day work of all our employees. We use various training tools and other practices to instill attitudes, beliefs, perceptions, and values that all employees share in the mandate to create and maintain a safe work environment for all.

We continuously monitor our safety performance through analysis of our company-wide safety statistics, which help us to determine behavioral trends while also instilling a culture of proactivity. For the year ended December 31, 2023, our Total Recordable Incident Rate ("TRIR") was 0.3 while Days Away, Restricted and Transferred Rate was 0.18 and Lost Work Day Rate remained 0.12. For the year ended December 31, 2022, our TRIR was 0.41.

Seasonality
 
Our business is seasonal. This seasonality relates primarily to our Services segment.oil and gas target market, and to a lesser extent within our other target markets. U.S. refineries’ non-peak periods are generally in the fall, when they are retooling to produce more heating oil for winter, and in the spring, when they are retooling to produce more gasoline for summer. The peak periods for these customers are the summer and winter months, when they run at peak capacity and are not retooling or performing turnarounds or shut downs. As a result, our revenues in the summer and winter months are typically lower than our revenues in the fall and spring, becausewhen demand for our asset protection solutions from the oil and gas as well as the fossil and nuclear power industries increases during their non-peak production periods. Because we are increasing our work in the fall and spring, our cash flows are lower in those quarters than in the summer and winter, as collections of receivables lag behind revenues. We expect that this seasonality will continue.
 
Competition
 
We operate in a highly competitive, but fragmented, market. Our primary competitors areinclude large public and private companies, divisions of large companies and many of our other competitors arevarious small companies which generally are limited to a specific product or technology and focused on a niche market or geographic region. We believe that nonefew, if any, of our competitors currently providesprovide the full range of asset protection and NDT products, enterprise software (PCMS)("PCMS") and the traditional and advanced services solutions that we offer. Our competition with respect to NDT services include the Acuren, division of Rockwood Service Corporation, SGS Group, the Team Qualspec division of Team, Inc.IHT Segment and APPLUS RTD. Our competition with respect to our PCMS software includes UltraPIPE, Lloyd’s Register Capstone, Inc. and Meridium Systems. In the traditional NDT market, we believe the principal competitive factors include project management, availability of qualified personnel, execution, price, reputation and quality. Inquality, whereas in the advanced NDT market, reputation, quality and size are moretend to be the most significant competitive factors than price.factors. We believe that the NDT market has significant barriers to entry which would make it difficult for new competitors to enter the market. These barriers include: (1)(i) having to acquire or develop advanced NDT services, products and systems technologies, which in our case occurred over many years of customer engagements and at significant internal research and development expense, (2)(ii) complex regulations and safety codes that require significant industry experience, (3)(iii) license requirements and evolved quality and safety programs,

(4) (iv) costly and time-consuming certification processes, (5)(v) capital requirements and (6)(vi) emphasis by large customers on size and critical mass, length of relationship and past service record.

SalesResearch and MarketingDevelopment

We sell our asset protection solutions through our experienced and highly trained direct sales and marketing teams within all of our offices worldwide. In addition, our project and laboratory managers as well as our management are trained on our solutions and often are the source of sales leads and customer contacts. Our direct sales and marketing teams work closely with our customers’ research and design personnel, reliabilitydevelopment is principally conducted by engineers and facilities maintenance engineers to demonstrate the benefits and capabilities of our asset protection solutions, refine our asset protection solutions based on changing market and customer needs and identify potential sales opportunities. We divide our sales and marketing efforts into services sales, products and systems sales and marketing and utilize CRM systems to collect, manage and collaborate customer information with our teams globally. Our CRM's also provide critical data to provide accurate forecasting and reporting.
Manufacturing
Most of our hardware products are manufactured inscientists at our Princeton Junction, New Jersey facility.headquarters, and supplemented by other employees in the United States and throughout the world, including Canada, France, Greece the United Kingdom, Brazil and the Netherlands. Our Princeton Junctiontotal professional staff includes employees who hold Ph.D.’s and engineers and employees who hold Level III certification, the highest level of certification from the American Society of Non-Destructive Testing (ASNT).
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We make strategic research and development investments in our data analytical solutions technologies that support integration with our other solution offerings to enhance cost- and time-efficiencies, maximize uptime and safety and improve the flow of data from field technicians to inspection databases. These strategic investments enable us to enhance our service offerings to customers and provide valuable insights and predictive analysis.
We have also invested significant research and development in pre-machining and advanced testing technologies in a purpose-built facility includesfor an aerospace customer, with the capabilitiesgoal of reducing the customer’s production cycle logistics and personnelcosts.
We also work with customers to fully produce alldevelop new products or applications for our technology, including:
Testing of new composites
Detecting crack propagation
Wireless and communications technologies
Development of permanently embedded inspection systems to provide continuous, online, in-service monitoring of critical structural components

Research and development expenses are reflected in our Consolidated Statements of Income (Loss) as research and engineering expenses. Our company-sponsored research and engineering expenses were approximately $1.7 million, $2.0 million and $2.5 million for the years ended December 31, 2023, 2022 and 2021, respectively. While we have historically funded most of our AE products, NDT Automation Ultrasonic equipmentresearch and Vibra-Metrics vibration sensing productsdevelopment expenditures, from time to time we also receive customer-sponsored research and systems. Certaindevelopment funding. Most of the projects are in our target markets, however, a few of the projects could lead to other hardware is manufactured by a third party and then loaded by us with our proprietary software. We also design and manufacture automated ultrasonic systems and scanners in France.future market opportunities.

Intellectual Property


Our success depends, in part, on our ability to maintain and protect our proprietary technology and to conduct our business without infringing on the proprietary rights of others. We utilize a combination of intellectual property safeguards, including patents, copyrights, trademarks and trade secrets, as well as employee and third-party confidentiality agreements, to protect our intellectual property.
As of December 31, 2017,2023, we held 412 U.S. patents (byby direct ownership or exclusive licensing), alland 5 patent applications pending in the United States, which will expire at various times between 2021 and 2026, and license certain other patents. However,States. All the patent applications pending have been filed since 2018. While we do not principally rely on these patents or licenses to provide a majority of our proprietary asset protection solutions.solutions, certain of these patents do provide us with a competitive advantage and we believe they will be an asset to our growth strategy. Our trademarks and service marks provide us and our products and servicessolutions with a certain amount of brand recognition in our markets. We do not consider any single patent, trademark or service mark material to our financial condition or results of operations.
As of December 31, 2017,2023, the primary trademarks and service marks that we held in the United States included MistrasMISTRAS® and, our stylized globe design.design and our tag line "One Source for Asset Protection Solutions". Other key trademarks or service marks that we utilize in localized markets or product advertising include PCMSinclude:
Onstream® (word and logo)
PCMS® (word and logo)
Ropeworks®
MISTRAS Digital®,
OneSuite™
Sensoria™
OneSource™
CALIPERAY™ (word and logo)
Physical Acoustics Corporation and the PAC logo Ropeworks
Streamview™
Sensor Highway™
TankPAC®, NOESIS,
VPAC™
Transformer Clinic™
FieldCal™
UTwin®
AEwin®
Pocket AE®, AE®
Pocket UT®, AEwin®, AEwinPost, UTwin®, UTIA, LST, Vibra-Metrics®, Field CAL®, MONPAC, PERFPAC, TANKPAC® , Valve-Squeak®,VPAC, POWERPAC, Sensor Highway, QSL, NDT Automation, and One Source for Asset Projection Solutions®.UT®

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Many elements of our asset protection solutions involve proprietary know-how, technology or data that are not covered by patents or patent applications because they are not patentable or patents covering them would be difficult to enforce, including technical processes, equipment designs, algorithms and procedures. We believe that this proprietary know-how, technology and data is the most important component of our intellectual property assets used in our asset protection solutions and is a primary differentiator of our asset protection solutions from those of our competitors. We rely on various trade secret protection techniques and agreements with our customers, service providers and vendors to protect these assets. All of our employees are subject to confidentiality requirements through our employee handbook. In addition, employees in our Products and Systems segment and our other employees involved in the developmentmany of our intellectual propertyemployees have entered into confidentiality and proprietary information agreements with us. Our employee handbook and these agreements require our employees not to use or disclose our confidential information and to assign to us all of the inventions, designs and technologies they develop during the course of employment with us, and otherwise addressas well as addressing other intellectual property protection issues. We also seek confidentiality agreements from our customers and business partners before we disclose any sensitive aspects of our asset protection solutions technologytechnologies or business strategies. We are not currently involved in any material intellectual property claims.
Research and Development
Our research and development is principally conducted by engineers and scientists at our Princeton Junction, New Jersey headquarters, and supplemented by other employees in the United States and throughout the world, including France, Greece, and the United Kingdom, who have other primary responsibilities. Our total professional staff includes employees who hold

Ph.D.’s and engineers and employees who hold Level III certification, the highest level of certification from the American Society of Non-Destructive Testing.
We work with customers to develop new products or applications for our technology. Research and development expenses are reflected on our consolidated statements of income as research and engineering expenses. Our company-sponsored research and engineering expenses were approximately $2.3 million $1.6 million, $2.5 million and $2.5 million for the year ended December 31, 2017, the transition period ended December 31, 2016 and fiscal 2016 and 2015, respectively. While we have historically funded most of our research and development expenditures, from time to time we also receive customer-sponsored research and development funding. We also have paid research contracts in Greece, Brazil, France, the United Kingdom, and the Netherlands, for various industries and applications, including testing of new composites, detecting crack propagation and wireless and communications technologies, as well as the development of permanently embedded inspection systems using acoustic emission and acousto-ultrasonics to provide continuous on-line in-service full coverage monitoring of critical structural components. Most of the projects are in our target markets; however, a few of the projects could lead to other future market opportunities.
Employees
Providing our asset protection solutions requires a highly-skilled and technically proficient employee base. As of December 31, 2017, we had approximately 6,000 employees worldwide, of which approximately 63% were based in the United States. Less than 10% of our employees in the United States are unionized. We believe that we have good relations with our employees.
Environmental MattersGovernmental Regulations
 
We are subject to numerous environmental, legal and regulatory requirements related to our operations worldwide. In the United States, these laws and regulations include, among others: the Comprehensive Environmental Response, Compensation, and Liability Act, the Resources Conservation and Recovery Act, the Clean Air Act, the Federal Water Pollution Control Act, the Toxic Substances Control Act, the Atomic Energy Act, the Energy Reorganization Act of 1974, and applicable regulations. In addition to the federal laws and regulations, states and other countries where we do business often have numerous environmental, legal and regulatory requirements by which we must abide. We evaluate and address the environmental impact of our operations by assessing properties in order to avoid future liabilities and comply with environmental, legal and regulatory requirements.


WeExecutive Officers
The following were our executive officers for the year ended December 31, 2023 and their background and experience.
NameAgePosition
Manuel N. Stamatakis76Chairman of the Board and Interim President and Chief Executive Officer
Edward J. Prajzner57Senior Executive Vice President and Chief Financial Officer
Gennaro D'Alterio52Executive Vice President, Chief Commercial Officer
Michael C. Keefe67Executive Vice President, General Counsel and Secretary
Michael J. Lange63Senior Group Executive Vice President
John A. Smith54Executive Vice President and President of Services

Manuel "Manny" N. Stamatakis joined Mistras Board of Directors in 2002, became the Chair of the Governance Committee as well as a member of the Audit Committee and Compensation Committee in 2009 and Lead Director in 2010.On October 9, 2023, Mr. Stamatakis became the Chairman of the Board, and on the same day became our Interim President Chief Executive Officer to replace our prior President and Chief Executive Officer, Dennis Bertolotti. At that same time, Mr. Stamatakis resigned from all the committees of the Board and as our lead director. Mr. Stamatakis currently chairs the Project Phoenix Steering Committee, an initiative for which he is both the chief architect and driving force.

An accomplished entrepreneur for over 30 years, Mr. Stamatakis is an executive officer of Capital Management Enterprises, Inc., a financial services and employee benefits consulting firm based in Pennsylvania.Mr. Stamatakis has held multiple board and chairmanship positions over the years, including Chairman of the Delaware River Port Authority, The Drexel College of Medicine, the Pennsylvania Supreme Court Investment Advisory Board, and the Philadelphia Shipyard Development Corporation which was the catalyst to bringing shipbuilding back to the Philadelphia region. He earned a B.S. in Industrial Engineering from Pennsylvania State University and received an honorary Doctor of Business Administration from Drexel University.
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Edward J. Prajzner joined Mistras in January 2018 as our Senior Vice President, Chief Financial Officer and Treasurer, was subsequently promoted to Executive Vice President and on March 26, 2023, was promoted to become our Senior Executive Vice President and Chief Financial Officer. Prior to joining Mistras, Mr. Prajzner worked at CECO Environmental Corp., a global service provider to environmental, energy and filtration industries, and served as Chief Financial Officer and Secretary from 2014 to 2017, Vice President of Finance and Chief Accounting Officer from 2013 until his appointment as Chief Financial Officer in 2014, and Corporate Controller and Chief Accounting Officer from 2012 to 2013. Mr. Prajzner also served in senior finance roles at CDI Corporation (now AE Industrial Partners) and American Infrastructure (now Allan Myers). Mr. Prajzner began his career in public accounting at Ernst & Young, received his B.S. in accountancy from Villanova University, his MBA in finance from Temple University and is a certified public accountant.

Gennaro "Jerry" D'Alterio joined Mistras on September 11, 2023, as Executive Vice President and Chief Commercial Officer. Prior to joining Mistras, Mr. D'Alterio most recently served as the Vice President of Product Management and Director, Global Business Development at CECO Environmental Corporation’s Fluid Handling & Filtration segment, where he also held the positions of President and Global President. With over 20 years of proven executive leadership and demonstrated ability to drive both revenue growth and profitability, across a wide range of industries, Mr. D’Alterio excels at driving best-in-class commercial operating models and transformations while fostering success-oriented, winning cultures. Mr. D'Alterio holds an MBA and a Bachelor of Science in Mechanical Engineering from Villanova University. He is certified in LEAN enterprise and manufacturing, is member of the Hydraulic Institute and the International Desalination Association, and serves on the Board of the Aquatic Animal Life Support Operators organization.

Michael C. Keefe joined Mistras in December 2009. Prior to joining Mistras, Mr. Keefe worked at International Fight League, a then publicly-traded sports promotion company, from 2007 until 2009, in various executive positions. From 1990 until 2006, Mr. Keefe served in various legal roles with Lucent Technologies and AT&T, the last four years of which he served as Vice President, Corporate and Securities Law and Assistant Secretary. Mr. Keefe received a noticeBS in May 2015 that the U.S. Environmental Protection Agency (“EPA”) performedBusiness Administration (Accounting) from Seton Hall University and a preliminary assessmentJ.D. from Seton Hall University School of Law.
Michael J. Lange joined Mistras when we acquired Quality Services Laboratories in November 2000, and was elected a leased facility we operateDirector in Cudahy, California. Based upon the preliminary assessment, the EPA conducted2003. Mr. Lange has held various executive level positions with Mistras, becoming Senior Executive Vice President, effective June 1, 2016. Mr. Lange is a well-recognized authority in Radiography and has held an investigationASNT Level III Certificate for almost 20 years. Mr. Lange received an Associate of the site. The purpose of the investigation is to determine whether any hazardous materials were releasedScience degree in NDT from the facility. We have been informed that certain hazardous materialsSpartan School of Aeronautics.

John A. Smith joined Mistras in 2008 and pollutants have been foundhas held various positions, including Vice President of Operations, then became Senior Vice President of Operations in 2018 before becoming Executive Vice President and President of Services on October 1, 2023. Mr. Smith began his career as a non-destructive testing (NDT) technician with CONAM Inspection and Engineering Services before launching his own business, Elite Inspection Services Company. He owned and operated Elite for 16 years, until Mistras acquired the ground watercompany in 2008. During his NDT career, Mr. Smith held multiple certifications from the general vicinity ofAmerican Society for Nondestructive Testing (ASNT).

Our executive officers are appointed by, and serve at the site and the EPA is attempting to ascertain the origination or source of these materials and pollutants. Given the historic industrial use of the site, the EPA determined that the sitediscretion of, our Cudahy facility should be examined along with numerous other sites in the vicinity. At this time, weboard of directors. There are not able to determine whether we haveno family relationships among any liability in connection with this matter and if so, the amountof our directors or range of any such liability.executive officers.

Our Website and Available Information
 
Our website address is www.mistrasgroup.com. We file reports with the SEC, including Quarterly Reports on Form 10-Q, Annual Reports on Form 10-K, Current Reports on Form 8-K and Proxy Statements. All of the materials we file with or furnish to the SEC are available free of charge on our website at http://investors.mistrasgroup.com/sec.cfm, as soon as reasonably practicable after having been electronically submitted to the SEC. Information contained on or connected to our website is not incorporated by reference into this Annual Report on Form 10-K and should not be considered part of this reportAnnual Report or any other filing with the SEC. All of our SEC filings are also available at the SEC’s website at www.sec.gov. In addition, materials we file with the SEC may be read and copied at the SEC’s Public Reference Room at 100 F Street, NE, Washington, DC 20549. The public may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330.

 
Executive Officers
The following are our executive officers and other key employees as of December 31, 2017 and their background and experience:

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NameAgePosition
Dr. Sotirios J. Vahaviolos71Executive Chairman and Director
Dennis Bertolotti58President, Chief Executive Officer and Director
Michael C. Keefe60Executive Vice President, General Counsel and Secretary
Michael J. Lange57Vice Chairman, Senior Executive Vice President of Global Business Development, Marketing & Strategic Planning, and Director
Jonathan H. Wolk56Senior Executive Vice President, Chief Financial Officer and Chief Operating Officer


Dr. Sotirios J. Vahaviolos was named Executive Chairman on August 10, 2017. Prior to being named Executive Chairman, Dr. Vahaviolos had been our Chairman and Chief Executive Officer since he founded Mistras in 1978 under the name Physical Acoustics Corporation and was also our President until June 1, 2016. Prior to joining Mistras, Dr. Vahaviolos worked at AT&T Bell Laboratories. Dr. Vahaviolos received a B.S. in Electrical Engineering and graduated first in his engineering class from Fairleigh Dickinson University and received Masters Degrees in Electrical Engineering and Philosophy and a Ph.D. (EE) from the Columbia University SchoolTable of Engineering. During Dr. Vahaviolos’ career in non-destructive testing, he has been elected Fellow of The Institute of Electrical and Electronics Engineers, a member of The American Society for Nondestructive Testing (ASNT) where he served as its President from 1992-1993 and its Chairman from 1993-1994, a member of Acoustic Emission Working Group (AEWG) and an honorary life member of the International Committee for Nondestructive Testing. Additionally, he was the recipient of ASNT’s Gold Medal in 2001 and AEWG’s Gold Medal in 2005. He was also one of the six founders of NDT Academia International in 2008 headquartered in Brescia, Italy.Contents
Dennis Bertolotti joined Mistras when Conam Inspection Services was acquired in 2003, where Mr. Bertolotti was a Vice President at the time of the acquisition. Since then, Mr. Bertolotti has had increasing levels of responsibility with Mistras, and became our President and Chief Executive Officer and Director, effective August 10, 2017. From June 1, 2016 to August 9, 2017, Mr. Bertolotti was our President and Chief Operating Officer. Mr. Bertolotti has been in the NDT business for over 30 years, and previously held ASNT Level III certifications and various American Petroleum Institute, or API, certifications, and received his Associate of Science degree in NDT from Moraine Valley Community College in 1983. Mr. Bertolotti has also received a Bachelor of Science and MBA from Otterbein College.
Michael C. Keefe joined Mistras in December 2009. Prior to joining Mistras, Mr. Keefe worked at International Fight League, a publicly-traded sports promotion company, from 2007 until 2009, in various executive positions. From 1990 until 2006, Mr. Keefe served in various legal roles with Lucent Technologies and AT&T, the last four years as Vice President, Corporate and Securities Law and Assistant Secretary. Mr. Keefe received a BS in Business Administration (Accounting) from Seton Hall University and a J.D. from Seton Hall University School of Law.
Michael J. Lange joined Mistras when we acquired Quality Services Laboratories in November 2000, and was elected a Director in 2003. Mr. Lange has held various executive level positions with Mistras, becoming Vice Chairman in July 2015 and Senior Executive Vice President, effective June 1, 2016. Mr. Lange is a well-recognized authority in Radiography and has held an ASNT Level III Certificate for almost 20 years. Mr. Lange received an Associate of Science degree in NDT from the Spartan School of Aeronautics.

Jonathan H. Wolk joined Mistras in November 2013 as Executive Vice President, Chief Financial Officer and Treasurer until August 10, 2017, when Mr. Wolk became Senior Executive Vice President and Chief Operating Officer. Mr. Wolk was also acting Chief Financial Officer from August 10, 2017 until the appointment of Mr. Prajzner on January 5, 2018. Prior to joining Mistras, Mr. Wolk served as Senior Vice President, Chief Financial Officer and Secretary of American Woodmark Corporation from 2004 until August 2013. Prior to American Woodmark, he served as the Chief Financial Officer and Treasurer of Tradecard, Inc., from 2000 to 2004, and was the global controller of GE Capital Real Estate from 1998 to 2000. Mr. Wolk started his career in public accounting at KPMG, received his B.S. in accounting from State University of New York-Albany and is a certified public accountant.

On January 5, 2018, Edward J. Prajzner, joined Mistras as Senior Vice President, Chief Financial Officer and Treasurer. Prior to joining Mistras, Mr. Prajzner worked at CECO Environmental Corp., a global service provider to environmental, energy and filtration industries, and served as Chief Financial Officer and Secretary from 2014 to 2017, Vice President of Finance and Chief Accounting Officer from 2013 until his appointment as CFO in 2014, and Corporate Controller and Chief Accounting Officer from 2012 to 2013. Mr. Prajzner also served in senior finance roles at CDI Corporation (now AE Industrial Partners), and American Infrastructure (now Allan Myers). Mr. Prajzner began his career in public accounting at Ernst & Young, received

his B.S. in accountancy from Villanova University, his MBA in finance from Temple University and is a certified public accountant.

Our executive officers are elected by, and serve at the discretion of, our board of directors. There are no family relationships among any of our directors or executive officers.
ITEM 1A.RISK FACTORS
 
This section describes the major risks to us, our business and our common stock. You should carefully read and consider the risks described below, together with the other information contained in this Annual Report, including our financial statements and the notes thereto and “Management’s Discussion and Analysis of Financial Condition and Results of Operations”(MD&A) before making an investment decision. The statements contained in this section constitute cautionary statements under the Private Securities Litigation Reform Act of 1995. If any of these risks occur, our business, financial condition, results of operations and future growth prospects may be adversely affected. As a result, the trading price of our common stock would likely decline, and you may lose all or part of your investment. You should understand that it is not possible to predict or identify all risk factors that could impact us. For example, the COVID-19 pandemic has had a dramatic negative impact on the health of citizens of many countries, and resulted in major disruptions in economies and markets around the world, including our key markets. In addition, it is unclear what effects the on-going war between Russia and Ukraine and the conflict in the Middle East between Israel and Hamas are likely to have on the world economy and certain of our target markets, including particularly the oil and gas market, in the near and long term. In addition, macroeconomic factors such as inflation, unemployment, and interest rates, amongst others, will impact our business. Accordingly, you should not consider the following to be a complete discussion of all risks and uncertainties pertaining to us and our common stock.
 
Risks Related to Our Business
Our growth strategy includes acquisitions. We may not be able to identify suitable acquisition candidates or integrate acquired businesses successfully, which may adversely impact our results.  Furthermore, acquisitions that we do complete could expose us to a number of unanticipated operational and financial risks.
A significant factor in our growth has been and will continue to be based upon our ability to make acquisitions and successfully integrate these acquired businesses.  We intend to continue to seek additional acquisition opportunities, both to expand into new markets and to enhance our position in existing markets.  This strategy has provided us with many benefits and has helped fuel our growth, but also carries with it many risks.  Some of the risks associated with our acquisition strategy include:
whether we successfully identify suitable acquisition candidates, negotiate appropriate acquisition terms, and complete proposed acquisitions;
whether we can successfully integrate acquired businesses into our current operations, including our accounting, internal control and information technology systems, marketing and other key infrastructure;
whether we can adequately capture opportunities that an acquired business may offer, including the expansion into new markets in which we do not have significant experience or presence;

whether we value an acquired business properly when determining the purchase price, terms and whether we are able to achieve the returns on the investment we expect;

whether an acquired business can achieve levels of revenues, profitability, productivity or cost savings we expect;

whether an acquired business is compatible with our culture and philosophy of doing business;

the unexpected loss of key personnel and customers of an acquired business;

the assumption of liabilities and risks (including environmental-related costs) of an acquired business, some of which may not be anticipated;
the potential disruption of our ongoing business and distraction of management and other personnel of us and the acquired business resulting from the efforts to acquire, then integrate, an acquired business; and

the use of significant funds, including those borrowed under our bank credit agreement, and the opportunity cost associated with the funds spent on the acquisition and integration of other businesses (some of which acquisition funding may be substantial), as well as the impact of the acquisition and borrowing on our continued compliance with our bank covenants.

Our ability to undertake acquisitions is limited by our financial resources, including available cash and borrowing capacity. Future acquisitions could result in potentially dilutive issuances of equity securities, the incurrence of substantial additional indebtedness and other expenses, any of which could adversely impact our financial condition and results of operations. Although management intends to: (i) evaluate the risks inherent in any particular transaction, (ii) assume only risks management believes to be acceptable, and (iii) develop plans to mitigate such risks, there are no assurances that we will properly ascertain or accurately assess the extent of all such risks.  Difficulties encountered with acquisitions may adversely impact our business, financial condition and results of operations.
In addition, we have a significant amount of goodwill and other intangible assets on our balance sheet from our acquisitions.  This will increase as we complete more acquisitions.  If our acquisitions do not perform as planned and we do not realize the benefits and profitability we expect, we could incur significant write-downs and impairment charges to our earnings due to the impairment of the goodwill and other intangible assets we have acquired or acquire in the future.
Our international operations are subject to risks relating to non-U.S. operations.
For the year ended December 31, 2017, the transition period ended December 31, 2016 and fiscal 2016 and 2015, we generated approximately 33%, 36%, 28% and 31% of our revenues outside the United States, respectively. In addition, our international operations as a percentage of our business may increase over time. Our primary operations outside the United States are in Canada, Germany, France, the United Kingdom and Brazil. We also have operations in the Netherlands, Belgium and India. There are numerous risks inherent in doing business in international markets, including:
fluctuations in currency exchange rates and interest rates;

varying regional and geopolitical business and economic conditions and demands;

compliance with applicable foreign regulations and licensing requirements, and U.S. laws and regulation with respect to our business in other countries, including export controls and anti-bribery laws;

the cost and uncertainty of obtaining data and creating solutions that are relevant to particular geographic markets;

the need to provide sufficient levels of technical support in different locations;

the complexity of maintaining effective policies and procedures in locations around the world;

political instability and civil unrest;

restrictions or limitations on outsourcing contracts or services abroad;

the impact of the United Kingdom exiting the European Union;

restrictions or limitations on the repatriation of funds, or tax consequences on the non-repatriation of overseas operationally generated funds; and

other potentially adverse tax consequences.

Due to our dependency on customers in the oil and gas industry, we are susceptible to prolonged negative trends relating to this industry that could adversely affect our operating results.
 
Our customers in the oil and gas industry (including the petrochemical market) have accounted for a substantial portion of our historical revenues. Specifically, they accounted for approximately 58%, 55%59%, 56%, and 52%54% of our revenues for the yearyears ended December 31, 2017, the transition period ended December 31, 20162023, 2022 and fiscal 2016 and 2015,2021, respectively. Although we have expanded our customer base into industries other than the oil and gas industry, we still receive approximately halfa majority of our revenues from this industry. Our services are vital to the operators of plants, refineries, and refineriespipelines, and we have expanded our services offerings, such as expanding our mechnicalmechanical and in-line inspection services capabilities. However, economic slowdowns or low oil prices have, and could continue to, result in cutbacks in contracts for our services. In addition, low oil prices could depress the level of new exploration and construction, which would adversely affect our market opportunities. If the price of oil and gas industry were to continue to operate in a market with low oil prices,decrease, our revenues, profits and cash flows may be reduced. If the price of oil reaches record, or near record levels as it did in 2022, we may experience delays or deferrals in performing inspection services to customers in the oil and gas industry.

While we continue to expand our market presence in the aerospace, power generation and transmission, and the chemical processing industries, among others, these markets are also cyclical in nature and as such, are subject to economic downturns. In addition, it is unclear what the continued effects the war between Russia and Ukraine and the conflict in the Middle East between Israel and Hamas are likely to have on the world economy and certain of our target markets, including particularly the oil and gas market, in the near and long term. However, during 2022, we experienced unfavorable foreign currency exchange impacts as it relates to our European operations. Additionally, the Russian-Ukrainian war continues to create disruptions in the oil and gas market and the supply chain in general, which is resulting in some disruption to our business operations. Our European operations are currently experiencing increased costs associated with higher energy costs, among others, due in part to the Russian-Ukrainian war.


We may be affected by climate change and market or regulatory responses to climate change

Climate change could have a material adverse effect on our results of operations, financial condition, and liquidity. Restrictions on emissions, including those that have already been adopted and others that are expected to be adopted in the future, could affect our customers that (i) use commodities to produce energy, (ii) use significant amounts of fossil fuel to produce or deliver commodities, or (iii) manufacture or produce goods that consume significant amounts of fossil fuels or burn fossil fuels. Significant cost increases, government regulation, or changes of consumer preferences for goods or services relating to alternative sources of energy or emissions reductions could materially affect the markets we serve (including the oil and gas industry), which in turn could have a material adverse effect on our results of operations, financial condition and liquidity. Government incentives encouraging the use of alternative sources of energy also could affect certain of our customers and the markets we serve in an unpredictable manner. Any of these factors, individually or with one or more of the other factors, or other unforeseen impacts of climate change could have a material adverse effect on our results of operations, financial condition and liquidity.

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In addition, changes in international, federal, state and local legislation and regulation based on concerns about climate change and increasing climate-related disclosures, including the rules proposed by the SEC, could result in increased compliance and data collection costs if, and when, such laws and regulations become effective.
 
We expectOur international operations are subject to continue expanding and our success depends on how effectively we manage our growth.risks relating to non-U.S. operations.
 
We expect to continue experiencing growth, including through acquisitions, inFor the number of employeesyears ended December 31, 2023, 2022 and the scope2021, we generated approximately 29%, 29%, and 30% of our revenues outside the United States, respectively. In addition, our international operations over the long-term. To effectively manageas a percentage of our anticipated future growth, we must continue to implement and improve our managerial, operational, compliance, financial and reporting systems and capabilities, expand our facilities and continue to recruit and train additional qualified personnel. We expect that all these measures will require significant expenditures and will demand the attention of management. Failure to manage our growth effectively could lead us to over or under-invest in technology and operations, result in weaknesses in our infrastructure, systems, compliance programs or controls, give rise to operational mistakes, the loss of business opportunities, the loss of employees and reduced productivity among remaining employees. Our expected growth could require significant capital expenditures and may divert financial resources from other projects, such as the development of new solutions. If our management is unable to effectively manage our expected growth, our expenses may increase more than expected,over time. Our primary operations outside the United States are in Canada, Germany, France, the United Kingdom, the Netherlands and Brazil. We also have operations in Belgium, Greece and India. There are numerous risks inherent in doing business in international markets, including:
fluctuations in currency exchange rates and interest rates;
regional micro and macro-economic pressures, inflationary costs, energy costs and geopolitical factors;
compliance with applicable foreign regulations and licensing requirements, and U.S. laws and regulation with respect to conducting business in other countries, including export controls, sanctions, anti-terrorist and anti-bribery laws;
the cost and uncertainty of obtaining data and creating solutions that are relevant to particular geographic markets;
the need to provide sufficient levels of technical support in different locations;
the complexity of maintaining effective policies and procedures in locations around the world;
political instability, war or conflicts and civil unrest;
increased risk of hacking, malware or security breaches of our profit margins may suffer, our revenues could declinedata and databases;
restrictions or may grow more slowly than expectedlimitations on outsourcing contracts or services abroad;
restrictions or limitations on the repatriation of funds, or tax consequences on the non-repatriation of overseas operationally generated funds; and we may be unable to implement our business strategy as anticipated.
other potentially adverse tax consequences.
 
Our operating results could be adversely affected by a reduction in business with our significant customers.
 
We derive a significant amount of revenues from a few customers. For instance, various divisions or business units of our largest customer were responsible for approximately 11% of our revenues for 2017. Taken as a group, our top ten customers were responsible for approximately 38%35%, 37%33%, 36% and 33% of our revenues for the yearyears ended December 31, 2017, the transition period ended December 31, 20162023, 2022 and fiscal 2016 and 2015,2021, respectively. This concentration pertains almost exclusively to our ServicesNorth America segment, which accounted for more than 70%82%, 83% and 82% of our revenues for the yearyears ended December 31, 2017, the transition period ended December 31, 20162023, 2022 and fiscal 2016 and 2015.2021, respectively. These customers are primarily in the oil and gas sector. Generally, our customers do not have an obligation to make purchases from us and may stop ordering our products and services or may terminate existing orders or contracts at any time with little or no financial penalty. The loss of any of our significant customers, any substantial decline in sales to these customers or any significant change in the timing or volume of purchases by our significant customers could result in lower revenues and could harm our business, financial condition or results of operations. During 2017,

Our business, and the industries we currently serve, are currently subject to governmental regulation, and may become subject to modified or new government regulation that may negatively impact our ability to market our asset protection solutions.
We are required to comply with various government regulations and licensing requirements. For example, the transportation and overnight storage of radioactive materials used in providing certain of our asset protection solutions such as radiography are subject to regulation under federal and state laws and licensing requirements. Our North America segment is currently licensed to handle radioactive materials by the U.S. Nuclear Regulatory Commission, more than 30 state regulatory agencies and the Canadian Nuclear Safety Commission. If we allegedly fail to comply with these regulations, we may be investigated and incur significant legal expenses associated with such investigations, and if we are found to have violated these regulations, we may be fined or lose one or more of our licenses or permits, which would prevent or restrict our ability to provide radiography services. In addition, while we are being investigated, we may be required to suspend work on the projects associated with our alleged noncompliance, resulting in loss of profits or customers, and damage to our reputation. Many of our customers have strict requirements concerning safety or loss time occurrences and if we are unable to meet these requirements it could result in lost
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revenues. In the future, governmental agencies may seek to change current regulations or impose additional regulations on our business. Any modified or new government regulation applicable to our current or future asset protection solutions may negatively impact the marketing and provision of those solutions and increase our costs of providing these solutions and have a corresponding adverse effect on our margins.
Additionally, greenhouse gases that result from human activities, including burning of fossil fuels, have been the focus of increased scientific and political scrutiny and are being subjected to various legal requirements. International agreements, national laws, state laws and various regulatory schemes limit or otherwise regulate emissions of greenhouse gases, and additional restrictions are under consideration by different governmental entities. We derive a significant amount of revenues and profits from such industries, including oil and gas, power generation and transmission, and chemicals processing. Such regulations could negatively impact our customers, which could negatively impact the market for the services and products we provide. This could materially adversely affect our business, financial condition, results of operations and cash flows.
We rely on certification of our NDT solutions by industry standards-setting bodies. We and/or our subsidiaries currently have International Organization for Standardization (ISO) 9001:2008 certification, ISO 14001:2004 certification and OHSAS 18001:2007 certification. In addition, we currently have Nadcap (formerly National Aerospace and Defense Contractors Accreditation Program) and similar certifications for certain of our locations. We continually review our NDT solutions for compliance with the requirements of industry specification standards and the Nadcap special processes quality requirements. However, if we fail to maintain our ISO, Nadcap or other certifications, our business may be harmed because our customers generally require that we have noted a challenged region withinthese certifications before they purchase our Services segment ("the Challenged Region") which includes a large customer contract. During the first quarter of 2018, the large contract in the Challenged Region was awarded to another contractor. Accordingly, our 2018 results will be impacted by the loss of this contract.NDT solutions.
 
An accident or incident involving our asset protection solutions could expose us to claims, harm our reputation and adversely affect our ability to compete for business and, as a result, harm our operating performance.
 
We could be exposed to liabilities arising out of the solutions we provide. For instance, we furnish the results of our testing and inspections for use by our customers in their assessment of their assets, facilities, plants and other structures. If such results were to be incorrect or incomplete, as a result of, for instance, poorly designed inspections, malfunctioning testing equipment or our employees’ failure to adequately test or properly record data, we could be subject to claims. Further, if an accident or incident involving a structure we tested occurs and causes personal injuries or property damage, such as the collapse of a bridge or an explosion in a facility, and particularly if these injuries or damages could have been prevented by our customers had we provided them with correct or complete results, we maywould likely face significant claims relating to personal injury, property damage or other losses. Even if our results are correct and complete, we may face claims for such injuries or damage simply because we tested the structure or facility in question. In addition, during the course of a single engagement, such as the inspection of a pipeline, we often perform tests on thousands of welds. Even if the accuracy of only a small number of these test results are questioned, a customer may attempt to refuse payment for the entire project. While we do have insurance, our insurance coverage does not cover non-payment by customers and may not be adequate to cover the damages from any suchof the prior referenced claims, forcing us to bear these uninsured damages directly, which could harm our operating results and may result in additional expenses and possible loss of revenues. An accident or incident for which we are found partially or fully responsible, even if fully insured, or even an incident at a customer or site for which we provide services although we were found not to be responsible, may also result in negative publicity, which would harm our reputation among our customers and the public, cause us to lose existing and future contracts or make it more difficult for us to compete effectively, thereby significantly harming our operating performance. In addition, the occurrence of an accident or incident might also make it more expensive or extremely difficult for us to insure against similar events in the future.
 
Many of the sites at which we work are inherently dangerous workplaces. If we fail to maintain a safe work environment, we may incur losses and lose business.
 
Many of our customers, particularly in the oil and gas and chemical industries, require their inspectors and other contractors working at their facilities to have good safety records because of the inherent danger at these sites. If our employees are injured at the work place, we willcould incur costs for the injuries and lost productivity. In addition, safety records are impacted by the number and amount of workplace incidents involving a contractor’s employees. If our safety record is not within the levels required by our customers, or compares unfavorably to our competitors, we could lose business, be prevented from working at

certain facilities or suffer other adverse consequences, all of which could negatively impact our business, revenues, reputation and profitability.

MostIf our software or system produces inaccurate information or are incompatible with the systems used by our customers and
make us unable to successfully provide our solutions, it could lead to a loss of revenues and customers.

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Our software and systems are complex and, accordingly, may contain undetected errors or failures. Software or system defects or inaccurate data may cause incorrect recording, reporting or display of information related to our computerasset protection solutions. Any such failures, defects and communications hardware is located atinaccurate data may prevent us from successfully providing our asset protection solutions, which could result in lost revenues. Software or system defects or inaccurate data may lead to customer dissatisfaction and could cause our customers to seek to hold us liable for any damages incurred. As a single facility, the failure of which would harmresult, we could lose customers, our businessreputation may be harmed and our financial condition and results of operations.operations could be materially adversely affected.

MostWe currently serve a commercial, and industrial customer base that uses a wide variety of constantly changing hardware, software solutions and operating systems. Our asset protection solutions need to interface with these systems in order to gather and assess data. Our business depends on the following factors, among others:

our computerability to integrate our technology with new and communicationsexisting hardware is located atand software systems, of either Mistras or a single facility. We havecustomer;
our ability to anticipate and support new standards, especially internet-based standards; and
our ability to integrate additional software modules under development by either us or a back-up data-centercustomer, with our existing technology and storage in a different geographic area. Should a natural disaster or some other event occur that damagesoperational processes.

If we are unable to adequately address any of these factors, our primary data center or significantly disrupts its operation, such as human error, fire, flood, power loss, telecommunications failure, break-ins, terrorist attacks, actsresults of waroperations and similar events, we could suffer temporary interruption of key functionsprospects for growth and capabilities before the back-up facility is fully operational.profitability
would be adversely impacted.

If we are unable to attract and retain a sufficient number of trained certified technicians, engineers and scientists at competitive wages, changes in laws and other labor issues could materially affect our operational performance may be harmed and our costs may increase.financial performance.
 
We believe that our success depends, in part, upon our ability to attract, develop and retain a sufficient number of trained certified technicians, engineers and scientists at competitive wages. The demand for such employees fluctuates as the demand for NDT and inspection services fluctuate. There is currently a reduced demand for technicians because of a slowdown of spending in the oil and gas industry. However, iffluctuates. When the demand for qualified technicians increases, we will likelyoften experience increased labor costs.costs, which we may not recover in the amounts we can charge our customers. The markets for our products and services require us to use personnel trained and certified in accordance with standards set by domestic or international standard-setting bodies, such as the American Society of Non-Destructive Testing or the American Petroleum Institute.API. Because of the limited supply of these certified technicians, we expend substantial resources maintaining in-house training and certification programs. If we fail to attract sufficient new personnel or fail to motivate and retain our current personnel, our ability to perform under existing contracts and orders or to pursue new business may be harmed, preventing us from growing our business or causing us to lose customers and revenues, and the costs of performing such contracts and orders may increase, which would likely reduce our margins.

In addition, if our costs of labor or related costs increase for other reasons or if new or revised labor laws, rules or regulations or healthcare laws are adopted or implemented that further increase our labor costs, our financial performance could be materially adversely affected.

Our initiatives to improve our financial performance may not achieve results within expected time frames, or at expected levels.

We have undertaken strategies to transform our business so that we may operate more effectively, streamline and rationalize our cost structures, and look for strategic opportunities to expand our revenue and become more profitable. The extent of our future success depends on how successful we are in these endeavors.

In 2023, we commenced a broad review of our operations, which we refer to as "Project Phoenix". Through Project Phoenix, we have been exploring ways to improve profitability and Adjusted EBITDA, through meaningful margin improvement and sustained cost savings. We have completed most phases of the project, wherein efficiency and profitability opportunities were identified, actionable initiatives were validated, and many of these actions have been implemented prospectively. Project Phoenix has resulted in significant cost reductions, primarily through headcount reductions, more efficient workflows, and streamlining of processes, and also led to developing and initiating action plans to increase revenue.

We believe our Project Phoenix initiatives will benefit the Company and our stockholders in the long run. However, we cannot be certain that some of the cost reductions could result in problems with our operations, lost opportunities, weakening of controls and procedures or other adverse effects if we misjudged the impact of the headcount reductions and other changes that we have implemented and are currently implementing. In addition, headcount reductions can result in lower employee morale and result in employees deciding to leave the Company, which would further adversely impact our businesses.
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We operate in competitive markets and if we are unable to compete successfully, we could lose market share and revenues and our margins could decline.
 
We face strong competition from NDT and a variety of niche asset protection providers, both larger and smaller than we are. Some of our competitors have greater financial resources than we do and could focus their substantial financial resources to develop a competing business model or develop products or services that are more attractive to potential customers than what we offer. Some of our competitors are business units of companies substantially larger than us and could attempt to combine asset protection solutions into an integrated offering to customers who already purchase other types of products or services from them. Our competitors may offer asset protection solutions at lower prices than ours in order to attempt to gain market share. Smaller niche competitors with small customer bases could be aggressive in their pricing in order to retain customers. These competitive factors could reduce our market share, revenues and profits.

Certain of our operations are unionized, and as a result, we or our subsidiaries are required to contribute to multi-employer pension plans. A significant reduction in our union work force could result in withdrawal liability to these mutli-employer pension plans, which could be significant.

Some of our workforce is unionized and the terms of employment for these workers are governed by collective bargaining agreements, or CBAs. Under these CBAs, we are required to contribute to the national pension funds for the unions representing these employees, which are multi-employer pension plans. If we experience a significant reduction in the employees covered by the CBAs, including as a result of lost business in the Challenged Region, a complete or partial withdrawal liability to these multi-employer pension plans could result under ERISA. Depending on the circumstances, this liability could be significant and adversely impact our earnings and cash flow.

Events such as natural disasters, industrial accidents, epidemics, war and acts of terrorism, and adverse weather conditions could disrupt our business or the business of our customers, which could significantly harm our operations, financial results and cash flow.
Our operations and those of our customers are susceptible to the occurrence of catastrophic events outside our control, ranging from severe weather conditions to acts of war and terrorism. Any such events could cause a serious business disruption that reduces our customers’ need or interest in purchasing our asset protection solutions. In the past, such events have resulted in order cancellations and delays because customer equipment, facilities or operations have been damaged, or are not then operational or available. A large portion of our customer base has operations in the Gulf of Mexico, which is subject to

hurricanes. Hurricane-related disruptions to our customers’ operations have adversely affected our revenues in the past. Such events in the future may result in substantial delays in the provision of solutions to our customers and the loss of valuable equipment. In addition, our results can be adversely impacted by severe winter weather conditions, which can result in lost work days and temporary closures of customer facilities or outdoor projects.  Any cancellations, delays or losses due to such events may significantly reduce our revenues and harm our operating performance.
If we lose key members of our senior management team upon whom we are dependent, we may be less effective in managing our operations and may have more difficulty achieving our strategic objectives.
Our future success depends to a considerable degree upon the availability, contributions, vision, skills, experience and effort of our senior management team. We have in place various compensation programs, such as an annual cash incentive program, equity incentive program and a severance policy, each designed to incentivize and retain our key senior managers. We have also made changes to our senior management structure so that executive officers other than our founder, Dr. Sotirios Vahaviolos, provide executive leadership for operational, business development and strategy matters. At this time, we do not have any reason to believe that we may lose the services of any of these key persons in the foreseeable future and we believe our compensation programs will help us retain these individuals. We believe we have sufficient depth in our executive management to continue our success if we were to lose the services of an executive. However, an unplanned loss or interruption of the service of numerous key members of our senior management team could harm our business, financial condition and results of operations and could significantly reduce our ability to manage our operations and implement our strategy.
Deteriorations in economic conditions in certain markets or other factors may cause us to recognize impairment charges for our goodwill.
As of December 31, 2017, the carrying amount of our goodwill was approximately $203 million, of which approximately $38 million relates to our International segment. A significant portion of our international operations are concentrated in Europe and Brazil. Significant deterioration in industry or economic conditions in which we operate, disruptions to our business, not effectively integrating acquired businesses, or other factors, may cause impairment charges to goodwill in future periods. During 2017, the Products and Systems segment had contract bids which management assessed as having a reasonable chance of success and were not awarded to the Company. As a result of this missed opportunity, the annual forecasting process was accelerated, resulting in a goodwill impairment test for the Products and Systems reporting unit and a $13.2 million impairment charge during the third quarter of 2017.

The success of our businesses depends, in part, on our ability to develop new asset protection solutions, increase the functionality of our current offerings and meet the needs and demands of our customers.
 
The market for asset protection solutions is impacted by technological change, uncertain product lifecycles, shifts in customer demands and evolving industry standards and regulations. We may not be ableIf we fail to execute effective business strategies, or fail to successfully develop and market new asset protection solutions that comply with present or emerging industry regulations and technology standards.standards, our competitive standing and results could suffer. Also, new regulations or technology standards could increase our cost of doing business.
 
From time to time, our customers have requested greater value and functionality in our solutions. As part of our strategy to enhance our asset protection solutions and grow our business, we continue to make investments in the research and development of new technologies, inspection tools and methodologies. We believe our future success will depend, in part, on our ability to continue to design new, competitive and broader asset protection solutions, enhance our current solutions and provide new, value-added services. Many traditional NDT and inspection services are subject to price competition by our customers. Accordingly, the need to demonstrate our value-added services is becoming more important. Developing new solutions will require continued investment, and we may experience unforeseen technological or operational challenges. In addition, our asset protection software is complex and can be expensive to develop, and new software and software enhancements can require long development and testing periods. If we are unable to develop new asset protection solutions or enhancements that meet market demands on a timely basis, including against possible alternative products developed and marketed by our competitors, we may experience a loss of customers or otherwise be likely to lose opportunities to earn revenues and to gain customers or access to markets, and our business and results of operations will be adversely affected.
 
Even if we develop new solutions, if our customers, or potential customers, do not see the value our solutions have over competing products and services, our operating results could be adversely impacted. In addition, because the asset protection solutions industry is rapidly evolving, we could lose insight into trends that may be emerging, which would further harm our competitive position by making it difficult to predict and respond to customer needs. If the market for our asset protection solutions does not continue to develop, our ability to grow our business would be limited and we might not be able to maintain

profitability. If we cannot convince our customers of the advantages and value of our advanced NDT services, we could lose large contracts or suffer lower profit margin.
 
If our software or system produces inaccurate information or are incompatible with the systems used by our customers and make us unable to successfully provide our solutions, it could lead to a loss of revenues and customers.
Our software and systems are complex and, accordingly, may contain undetected errors or failures. Software or system defects or inaccurate data may cause incorrect recording, reporting or display of information related to our asset protection solutions. Any such failures, defects and inaccurate data may prevent us from successfully providing our asset protection solutions, which could result in lost revenues. Software or system defects or inaccurate data may lead to customer dissatisfaction and could cause our customers to seek to hold us liable for any damages incurred. As a result, we could lose customers, our reputation may be harmed and our financial condition and results of operations could be materially adversely affected.
We currently serve a commercial, industrial and governmental customer base that uses a wide variety of constantly changing hardware, software solutions and operating systems. Our asset protection solutions need to interface with these non-standard systems in order to gather and assess data. Our business depends on the following factors, among others:
our ability to integrate our technology with new and existing hardware and software systems;

our ability to anticipate and support new standards, especially internet-based standards; and

our ability to integrate additional software modules under development with our existing technology and operational processes.
If we are unable to adequately address any of these factors, our results of operations and prospects for growth and profitability would be adversely impacted.
The seasonal nature of our business reduces our revenues and profitability in the winter and summer.summer and related cash flows.


Our business primarily in our Services segment, is seasonal. The fall and spring revenues for our Services segment are typically higher than our revenues in the winter and summer because demand for our asset protection solutions from the oil and gas as well as the fossil and nuclear power industries increases during their non-peak production periods. For instance, U.S. refineries’ non-peak periods are generally in the fall, when they are retooling to produce more heating oil for winter, and in the spring, when they are retooling to produce more gasoline for summer. As a result of these trends, we generally have reduced cash flows in the fall and spring, as collections of receivables lag behind revenues, possiblynormally requiring us to borrowincrease our borrowings under our credit agreement. In addition, most of our operating expenses, such as employee compensation and property rental expense, are relatively fixed over the short term. Moreover, our spending levels are based in part on our expectations regarding future revenues. As a result, if revenues for a particular quarter are below expectations, we may not be able to proportionately reduce operating expenses for that quarter. We expect that the impact of seasonality will continue.
Our business, and the industries we currently serve, are currently subject to governmental regulation, and may become subject to modified or new government regulation that may negatively impact our ability to market our asset protection solutions.
We incur substantial costs in complying with various government regulations and licensing requirements. For example, the transportation and overnight storage of radioactive materials used in providing certain of our asset protection solutions such as radiography are subject to regulation under federal and state laws and licensing requirements. Our Services segment is currently licensed to handle radioactive materials by the U.S. Nuclear Regulatory Commission (NRC), over 20 state regulatory agencies and the Canadian Nuclear Safety Commission. If we allegedly fail to comply with these regulations, we may be investigated and incur significant legal expenses associated with such investigations, and if we are found to have violated these regulations, we may be fined or lose one or more of our licenses or permits, which would prevent or restrict our ability to provide radiography services. In addition, while we are investigated, we may be required to suspend work on the projects associated with our alleged noncompliance, resulting in loss of profits or customers, and damage to our reputation. Many of our customers have strict requirements concerning safety or loss time occurrences and if we are unable to meet these requirements it could result in lost revenues. In the future, governmental agencies may seek to change current regulations or impose additional regulations on our business. Any modified or new government regulation applicable to our current or future asset protection solutions may negatively impact the marketing and provision of those solutions and increase our costs of providing these solutions and have a corresponding adverse effect on our margins.

Additionally, greenhouse gases that result from human activities, including burning of fossil fuels, have been the focus of increased scientific and political scrutiny and are being subjected to various legal requirements. International agreements, national laws, state laws and various regulatory schemes limit or otherwise regulate emissions of greenhouse gases, and additional restrictions are under consideration by different governmental entities. We derive a significant amount of revenues and profits from such industries, including oil and gas, power generation and transmission, and chemicals processing. Such regulations could negatively impact our customers, which could negatively impact the market for the services and products we provide. This could materially adversely affect our business, financial condition, results of operations and cash flows.
We rely on certification of our NDT solutions by industry standards-setting bodies. We and/or our subsidiaries currently have International Organization for Standardization (ISO) 9001:2008 certification, ISO 14001:2004 certification and OHSAS 18001:2007 certification. In addition, we currently have NADCAP (formerly National Aerospace and Defense Contractors Accreditation Program) and similar certifications for certain of our locations. We continually review our NDT solutions for compliance with the requirements of industry specification standards and the NADCAP special processes quality requirements. However, if we fail to maintain our ISO, Nadcap or other certifications, our business may be harmed because our customers generally require that we have these certifications before they purchase our NDT solutions.
Intellectual property may impact our business and results of operations.
Our ability to compete effectively depends in part upon the maintenance and protection of the intellectual property related to our asset protection solutions. Patent protection is unavailable for certain aspects of the technology and operational processes important to our business and any patent or patent applications, trademarks or copyrights held by us or to be issued to us, may not adequately protect us. Some of our trademarks that are not in use may become available to others. To date, we have relied principally on copyright, trademark and trade secrecy laws, as well as confidentiality agreements and licensing arrangements, to establish and protect our intellectual property. However, we have not obtained confidentiality agreements from all of our customers and vendors. Although we obligate our employees to confidentiality, we cannot be certain that these obligations will be honored or enforceable.
We may require additional capital to support business growth, which might not be available.
We intend to continue making investments to support our business growth and may require additional funds to respond to business challenges or opportunities, including the need to develop new, or enhance our current, asset protection solutions, enhance our operating infrastructure or acquire businesses and technologies. Accordingly, we may need to engage in equity or debt financings to secure additional funds. If we raise additional funds through further issuances of equity or convertible debt securities, our current stockholders could suffer significant dilution, and any new equity securities we issue could have rights, preferences and privileges superior to those of holders of our common stock. While our current bank financing is meeting our current need, any debt financing secured by us in the future could involve restrictive covenants relating to our capital-raising activities and other financial and operational matters, which may make it more difficult for us to obtain additional capital and to pursue business opportunities, including potential acquisitions. In addition, no assurance can be given that adequate or acceptable financing will be available to us, in which case we may not be able to grow our business, including through acquisitions, or respond to business challenges.

Our credit agreement contains financial and operating restrictions that may limit our access to credit. If we fail to comply with financial or other covenants in our credit agreement, we may be required to repay indebtedness to our existing lenders, which may harm our liquidity.
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Our credit agreement contains financial covenants that require us to maintain compliance with specified financial ratios. If we
fail to comply with these covenants, the lenders could prevent us from borrowing under our credit agreement, require us to pay
all amounts outstanding, require that we cash collateralize letters of credit issued under the credit agreement and restrict us from
making acquisitions. If the maturity of our indebtedness is accelerated, we then may not have sufficient funds available for
repayment or the ability to borrow or obtain sufficient funds to replace the accelerated indebtedness on terms acceptable to us,
or at all. We believe that it is probable, based on the New Credit Agreement (as defined herein), that we will be able to comply
with the financial covenants in our existing credit agreement and that sufficient credit remains available under the credit agreement to meet our liquidity needs. However, due to the uncertainties being caused by the significant volatility in oil prices and volatility in the aerospace production, such matters cannot be predicted with certainty.

Our current credit agreement also imposes restrictions on our ability to engage in certain activities, such as creating liens,
making certain investments, incurring more debt, disposing of certain property, paying dividends and making distributions and
entering into a new line of business. While these restrictions have not impeded our business operations to date, if our plans
change, these restrictions could be burdensome or require that we pay fees to have the restrictions waived. In addition, due to
our current debt levels and restrictions related to the debt covenants in our credit facility, we do not expect to make any
Any real or perceived internal or external electronic security breachesacquisitions in connection2024 other than small acquisitions with the usebanks’ approval.

We face risks regarding our information technology and security.

Significant disruptions of our asset protection solutionsinformation technology systems or breaches of information security could harmadversely affect our reputation, inhibit market acceptance
business. We rely upon information technology systems to operate many parts of our solutionsbusiness. We routinely collect, store and cause us to lose customers.

We and our customers use our asset protection solutions to compile and analyzetransmit large amounts of sensitive or confidential customer-relatedinformation, including data from the results of our testing and inspections.
We deploy and operate various technical and procedural controls to maintain the confidentiality and integrity of such sensitive
or confidential information. Furthermore, as we automate more of our inspection process and procedures, including through the
use of MISTRAS Digital, we become more vulnerable to security breaches and other system disruptions. In addition, we rely on
third parties for significant elements of our information technology infrastructure and, as a result, we are managing many
independent vendor relationships with third parties who may or could have access to our confidential information. The size and
complexity of our information technology and information security systems, and those of our third-party vendors with whom we contract (and the large amounts of confidential information that is present on them), make such systems potentially vulnerable to service interruptions or to security breaches from inadvertent or intentional actions by our employees or vendors, or from attacks by malicious third parties. Such attacks are of ever-increasing levels of sophistication and expertise, including organized criminal groups, “hacktivists” and others. Due to the nature of some of these attacks, there is a risk that they may remain undetected for a period of time. While we have invested in the protection of data and information technology, there can be no assurance that our asset protection solutions allow usefforts will prevent service interruptions or security breaches. Any such interruption or breach of our systems could adversely affect our business operations and/or result in the loss of critical or sensitive confidential information, and could result in financial, legal, business and reputational harm to remotely control and store dataus. We maintain cyber liability insurance. However, this insurance may not be sufficient to cover the financial, legal, business or reputational losses that may result from equipment at commercial, institutional and industrial locations. Our asset protection solutions rely on the secure electronic transmissionan interruption or breach of proprietary data over the internet or other networks.our systems. The occurrence or perception of security breaches in connection with our asset protection solutions or our customers’ concerns about internet security or the security of our solutions, whether warranted or not, would likely harm our reputation orand business, inhibit market acceptance of our asset protection solutions and cause us to lose customers, any of
which would harm our financial condition and results of operations.

We may come into contact with sensitive information or data when we perform installation, maintenance or testing functions forIn addition, much of our customers. Even the perception that we have improperly handled sensitive, confidential information wouldcomputer and communications hardware is located at a single facility. We have a negative effectback-up data-center
and storage in a different geographic area. Should a natural disaster or some other event occur that damages our primary data
center or significantly disrupts its operation, such as human error, fire, flood, power loss, telecommunications failure, break-ins,
terrorist attacks, acts of war and similar events, we could suffer temporary interruption of key functions and capabilities before
the back-up facility is fully operational.

Events such as natural disasters, industrial accidents, epidemics, pandemics, war and acts of terrorism, and adverse weather
conditions could disrupt our business or the business of our customers, which could significantly harm our operations, financial results and cash flow.

Our operations and those of our customers are susceptible to the occurrence of catastrophic events outside our control, which
may include events like epidemics, pandemics and other health crises, severe weather conditions, industrial accidents, and acts
of war and terrorism, to name a few. We continue to actively monitor the conflict in the Middle East between Israel and Hamas, and the war between Russia and Ukraine and the sanctions imposed upon Russia in order to assess impacts to our customers and our operations. At this time, we do not believe there is a material impact on our business. If,operations, however the future impact of the conflict, and additional sanctions imposed, are uncertain.
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Any such events could cause a serious business disruption that reduces our customers’ need or interest in handling this information, we failpurchasing our asset
protection solutions. In the past, such events have resulted in order cancellations and delays because customer equipment,
facilities or operations have been damaged, or are not then operational or available. A large portion of our customer base has
operations in the Gulf of Mexico, which is subject to comply with privacy or security laws, we could incur civil liabilityhurricanes and tropical storms. Hurricane-related disruptions to government agencies,our
customers’ operations have adversely affected our revenues in the past. Such events in the future may result in substantial delays in the provision of solutions to our customers and individuals whose privacy is compromised.the loss of valuable equipment. In addition, third parties may attempt to breach our securityresults can be adversely impacted by severe winter weather conditions, which can result in lost workdays and temporary closures of customer facilities or inappropriatelyoutdoor projects.

In addition, these events could disrupt commodity prices or financial markets or have other negative macroeconomic impacts,
such as the conflict in the Middle East between Hamas and Israel and the on-going war between Ukraine and Russia, which could harm our asset protection solutions through computer viruses, electronic break-ins and other disruptions. If a breach is successful, confidential information may be improperly obtained, for which we may be subject to lawsuits and other liabilities.business.
 
Risks Related to Our Common Stock
 
Our stock price could fluctuate for numerous reasons, including variations in our results.
Our quarterly operating results have fluctuated in the past and may do so in the future. Accordingly, we believe that period-to-period comparisons of our results of operations may be the best indicators of our business. You should not rely upon the results of one quarter as an indication of future performance. Our revenues and operating results may fall below the expectations of securities analysts or investors in any future period. Our failure to meet these expectations may cause the market price of our common stock to decline, perhaps substantially.  Our quarterly revenues and operating results may vary depending on a number of factors, including those listed previously under “Risks Related to Our Business.”  In addition, the price of our common stock is subject to general economic, market, industry, and competitive conditions, the risk factors discussed below and numerous other conditions outside of our control.
A significant stockholder controlshas significant influence over the direction of our business. The concentrated ownership of our common stock may prevent other stockholders from influencing significant corporate decisions.
 
Dr. Sotirios J. Vahaviolos, our Executivefounder and Chairman Emeritus, owns approximately 37%6% of our outstanding common stock.stock, his three adult children own an additional 6%, in the aggregate, and a grantor retained annuity trust he created, for which his daughter is the sole trustee, owns approximately 22%. As a result, Dr. Vahaviolos exhibitsand his family have significant control over ourthe Company and hasthey have the ability to exert substantial influence over all matters requiring approval by our shareholders,stockholders, including the election and removal of directors, amendments to our certificate of incorporation, and any proposed merger, consolidation or sale of all or substantially all of our assets and other corporate transactions. This concentration of ownership could be disadvantageous to other shareholdersstockholders with differing interests from Dr. Vahaviolos.Vahaviolos and his family.
 
We currently have no plans to pay dividends on our common stock.
 
We have not declared or paid any cash dividends on our common stock to date, and we do not anticipate declaring or paying any dividends on our common stock in the foreseeable future. To the extent we do not pay dividends on our common stock, investors must look solely to stock appreciation for a return on their investment.
 
Shares eligible for future sale may cause the market price for our common stock to decline even if our business is doing well.
 
Future sales by us or by our existing shareholdersstockholders of substantial amounts of our common stock in the public market, or the perception that these sales may occur, could cause the market price of our common stock to decline. This could also impair our ability to raise additional capital in the future through the sale of our equity securities. Under our certificate of incorporation, we are authorized to issue up to 200,000,000 shares of common stock, of which approximately 28,302,000 shares of common stock were outstanding as of March 5, 2018. In addition, we have approximately 3,093,000 shares of common stock reserved for issuance related to stock options and restricted stock units that were outstanding as of March 5, 2018. We cannotcannot predict the size of future issuances of our common stock or the effect, if any, that future sales and issuances of shares of our common stock, or the perception of such sales or issuances, would have on the market price of our common stock. We currently have approximately 170 million shares of common stock available for issuance.
 

Provisions of our charter,certificate of incorporation, bylaws and of Delaware law could discourage, delay or prevent a change of control of our company, which may adversely affect the market price of our common stock.
 
Certain provisions of our certificate of incorporation and bylaws could discourage, delay or prevent a merger, acquisition, or other change of control that stockholders may consider favorable, including transactions in which our stockholders might otherwise receive a premium for their shares. These provisions also could limit the price that investors might be willing to pay in the future for shares of our common stock, thereby depressing the market price of our common stock. Stockholders who wish to participate in these transactions may not have the opportunity to do so. Furthermore, these provisions could prevent or frustrate attempts by our stockholders to replace or remove our management. These provisions:
 
allow the authorized number of directors to be changed only by resolution of our board of directors;

require that vacancies on the board of directors, including newly created directorships, be filled only by a majority vote of directors then in office;

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authorize our board of directors to issue, without stockholder approval, preferred stock that, if issued, could operate as a “poison pill” to dilute the stock ownership of a potential hostile acquirer to prevent an acquisition that is not approved by our board of directors;

require that stockholder actions must be effected at a duly called stockholder meeting by prohibiting stockholder action by written consent;

prohibit cumulative voting in the election of directors, which may otherwise allow holders of less than a majority of stock to elect some directors; and

establish advance notice requirements for stockholder nominations to our board of directors or for stockholder proposals that can be acted on at stockholder meetings and limit the right to call special meetings of stockholders to the Chairman of the Board, theour board, our Chief Executive Officer, theour board of directors acting pursuant to a resolution adopted by a majority of directors or theour Secretary upon the written request of stockholders entitled to cast not less than 35% of all the votes entitled to be cast at such meeting.
 
In addition, because we are incorporated in Delaware, we are governed by the provisions of Section 203 of the Delaware General Corporation Law, which may, unless certain criteria are met, prohibit large stockholders, in particular those owning 15% or more of our outstanding voting stock, from merging or combining with us for a prescribed period of time.


General Risk Factors

Our stock price could fluctuate for numerous reasons, including variations in our results.

Our quarterly operating results have fluctuated in the past and may do so in the future. Accordingly, we believe that
period-to-period comparisons of our results of operations may be the best indicators of our business. You should not rely upon
the results of one quarter as an indication of future performance. Our revenues and operating results may fall below the expectations of securities analysts or investors in any future period. Our failure to meet these expectations may cause the market price of our common stock to decline, perhaps substantially. Our quarterly revenues and operating results may vary depending on a number of factors, including those listed previously under “—Risks Related to Our Business.” In addition, the price of our
common stock is subject to general economic, market, industry, and competitive conditions, the risk factors discussed herein
and numerous other conditions outside of our control.

Deteriorations in economic conditions in certain markets or other factors may cause us to recognize additional impairment charges for our goodwill.

During the year ended December 31, 2023, we recognized goodwill impairment charges of $13.8 million within the International reporting units. Future deterioration in industry or economic conditions in which we operate, including increased inflationary costs, energy costs, labor costs, social pressures and disruptions in Europe, the Middle East or elsewhere as a result of the war between Russia and Ukraine and the conflict between Israel and Hamas, disruptions to our business, not effectively integrating acquired businesses, macroeconomic factors or other factors, may cause impairment charges to our goodwill in future periods.
We are subject to privacy and data security/protection laws in the jurisdictions in which we operate and may be exposed to substantial costs and liabilities associated with such laws and regulations.

The regulatory environment surrounding information security and privacy is increasingly demanding, with frequent imposition of new and changing requirements. The European Union's General Data Protection Regulation (“GDPR”), which became effective in May 2018, imposed significant new requirements on how companies process and transfer personal data, as well as significant fines for non-compliance. In addition to GDPR, many states in the U.S. and provinces in Canada have enacted, or are considering, data privacy requirements similar to GDPR, and thus we will need to ensure our procedures comply with these various state and provincial laws. Compliance with changes in privacy and information security laws and standards may result in significant expense due to increased investment in technology and the development of new operational processes, which could have a material adverse effect on our financial condition and results of operations. In addition, the payment of potentially significant fines or penalties in the event of a breach of privacy and information security laws, as well as the negative publicity associated with such a breach, could damage our reputation and adversely impact product demand and customer relationships.

If we lose key members of our senior management team upon whom we are dependent, we may be less effective in managing our operations and may have more difficulty achieving our strategic objectives.
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Our future success depends to a considerable degree upon the availability, contributions, vision, skills, experience and effort of our senior management team. We have in place various compensation programs, such as an annual cash incentive program, equity incentive program and a severance policy, each designed to incentivize and retain our key senior managers. At this time, we do not have any reason to believe that we may lose the services of any of these key persons in the foreseeable future and we believe our compensation programs will help us retain these individuals. However, an unplanned loss or interruption of the service of numerous key members of our senior management team could harm our business, financial condition and results of operations and could significantly reduce our ability to manage our operations and implement our strategy.

Intellectual property may impact our business and results of operations.
Our ability to compete effectively depends in part upon the maintenance and protection of the intellectual property related to our asset protection solutions. Patent protection is unavailable for certain aspects of the technology and operational processes important to our business and any patent or patent applications, trademarks or copyrights held by us or to be issued to us, may not adequately protect us. To date, we have relied principally on copyright, trademark and trade secrecy laws, as well as confidentiality agreements and licensing arrangements, and more recently, patent protection, to establish and protect our intellectual property. However, we have not obtained confidentiality agreements from all our customers. Although we obligate our employees to confidentiality, we cannot be certain that these obligations will be honored or enforceable in all circumstances.
We may require additional capital to support business growth, which might not be available.
We intend to continue making investments to support our business growth and may require additional funds to respond to business challenges or opportunities, including the need to develop new, or enhance our current, asset protection solutions, enhance our operating infrastructure or acquire businesses and technologies. Accordingly, we may need to engage in equity or debt financings to secure additional funds. If we raise additional funds through further issuances of equity or convertible debt securities, our current stockholders could suffer significant dilution, and any new equity securities we issue could have rights, preferences and privileges superior to those of holders of our common stock. Our current credit facility meets our current needs, except that due to our current debt levels, the facility limits our ability to make acquisitions without the banks' approval until our debt ratio improves. If we were to secure other debt financing in the future, it could involve restrictive covenants relating to our capital-raising activities and other financial and operational matters, which may make it more difficult for us to obtain additional capital and to pursue business opportunities, including potential acquisitions. In addition, no assurance can be given that adequate or acceptable financing will be available to us, in which case we may not be able to grow our business, including through acquisitions, or respond to business challenges.

ITEM 1B.UNRESOLVED STAFF COMMENTS
 
None.
 
ITEM 1C.CYBERSECURITY
We prioritize the protection of our data assets, the private data of our employees, customers, and vendors, and personal information. To assess, identify, and manage the risks of cybersecurity threats to our information systems and the associated costs, we maintain a robust cybersecurity program that is integrated into the Company’s overall Enterprise Risk Management strategy. We understand that threats from hackers and other cyber criminals continues to adapt and become more sophisticated, and so must our response to these threats.

Governance

Our Board of Directors (“the Board”) is responsible for oversight of our information security program. The Audit Committee, Enterprise Risk Committee, and the Information Technology Leadership Team support the Board in the oversight of our information security program and are focused on cybersecurity and data privacy risk, including compliance with all applicable laws and regulations, incident response planning, timely identification and assessment of incidents, incident recovery and business continuity considerations.

The Divisional Vice President of IT has a biannual meeting with the Audit Committee and other senior executives to provide an update of our current cyber security posture, IT Risk assessment, and compliance with multiple applicable regulations, frameworks, and other privacy initiatives. The Divisional Vice President of IT, along with the Information Technology Leadership Team, also meet with other senior executives every other week throughout the year to discuss on-going cyber security and governance initiatives and risk mitigations. The Divisional Vice President of IT has fifteen years of cybersecurity
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experience, including ten years with Mistras Group, and the Information Technology Leadership Team has a combined fifteen years of cybersecurity experience, including a combined ten years with Mistras Group. The Divisional Vice President of IT and members of the Information Technology Leadership Team maintain industry recognized credentials relevant to their roles.

The Divisional Vice President of IT manages both an Information Security team and an IT Risk team within the Department of Information Technology. The IT Risk team is responsible for governance and compliance related to regulations and frameworks for data classification, data privacy, handling of private data and CUI, and internal policies and procedures. The Cyber Security team is responsible for identifying and implementing technologies to mitigate IT risk, enhance data security, and identify and defend against attacks. Both teams work closely together to establish the cybersecurity policies for the Company, evaluate the current risk profile, and to prevent, investigate, mitigate, and remediate any cyber-attacks on the Company.

Risk Management and Strategy

The IT Risk team uses an asset-based risk approach for evaluating cybersecurity risks and appropriate risk mitigation. All IT assets are reviewed against a broad range of risks twice a year and are evaluated for likelihood of occurrence and impact should they occur. These risks are then mapped to our global inventory of systems and the type of data as well as the number of systems to which a risk applies are evaluated. These factors are used to determine a risk score for each of the reviewed risks, and mitigations are subsequently applied to reduce those risk scores to determine the areas of focus for increasing mitigations. This exercise is logged biannually to monitor improvement.

We have several physical, automated, and administrative controls in place to mitigate the success and extent of any cyber breaches. Our controls are designed to require review of tasks which may occur in the normal course of business but are also common vectors of attack. Automated controls are implemented in all cases where one is feasible, and in other cases standard procedures or documented instructions are in place to ensure that actions are proper and approved before they occur.

Policies related to cybersecurity risks are documented, reviewed annually, and published internally, which define the correct processes for identifying, containing, remediating, and responding to cybersecurity incidents. Our data protection policies define the establishment of the classification of types of data. Based upon this data classification, we determine an incident’s materiality and establish the appropriate response, the incident management team, and the communications required to be distributed to third parties. Incident management policies are in place to establish the proper communication channels and responsible parties for different levels of materiality of an incident. We practice these policies and procedures in a tabletop or simulated fashion multiple times annually.

Each employee plays a role in safeguarding our data assets, and the protection of our data is ingrained in every employee’s day to day activities. Employees must participate in annual Cyber Security training. Simulated testing occurs multiple times throughout the year, including drop testing and SPAM / PHISHING campaigns, and the results are tracked for compliance and we address any weaknesses identified in such trainings and testings as necessary.

The Information Security team performs internal threat hunting, vulnerability scanning, log aggregation, and identity monitoring on an on-going basis. Web site, code, and configuration vulnerability scans are performed as necessary to ensure that changes do not introduce vulnerabilities into our systems. Information Security and IT Risk personnel receive regular training to ensure up-to-date expert knowledge.

To supplement our cybersecurity risk assessment, identification, management, and mitigation efforts, we engage third party cyber security experts. Cyber security assessments are performed at least annually, results are documented and reviewed, and mitigation plans are put in place to reduce any threats identified. The classification of data processed by any system is considered when implementing mitigations.

We recognize the importance of overseeing and identifying material risks from cybersecurity threats associated with our use of third-party vendors. We perform a thorough review of the cyber security measures in place, including any documented third-party audits, for any partners who process our data. Sign-off is required by the Information Security team before agreements can be put in place.

We believe that our current preventative actions and response activities provide adequate measures of protection against security breaches and generally reduce our cybersecurity risks. However, cybersecurity threats are constantly evolving, are becoming more frequent and more sophisticated and are being made by groups of individuals with a wide range of expertise and motives, which increases the difficulty of detecting and successfully defending against them. While we have implemented measures to safeguard our operational and technology systems and have established a culture of continuous learning, monitoring and improvement, the evolving nature of cybersecurity attacks and vulnerabilities means that these protections may
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not always be effective. However, as of the date of this Annual Report, management has determined that none of the cybersecurity attacks that we have experienced has resulted in a material impact on our financial condition, results of operations or business strategy. In addition, as of the date of this Annual Report, we are not aware of any risks from cybersecurity threats that have materially affected or are reasonably likely to materially affect us, including our business strategy, results of operations and financial condition.

For additional information regarding how cybersecurity threats have affected or are reasonably likely to materially affect our business strategy, results of operations or financial condition, see Part I, Item 1A, “Risk Factors—Risks Related to Our Business—We face risks regarding our information technology and security”.

ITEM 2.PROPERTIES
 
As of December 31, 2017,2023, we operated approximately 120 offices110 facilities in 1411 countries, with our corporate headquarters located in Princeton Junction, New Jersey. Our headquarters in Princeton Junction is our primary location, where most of our manufacturing and research and development is conducted. While we lease most of our facilities, as of December 31, 2017,2023, we owned properties located in Monroe, North Carolina; Trainer, Pennsylvania; LaPorte, Texas; Burlington, Washington; Gillette, Wyoming, Ellabell, Georgia;Evanston, Wyoming; and Jonquiere, Quebec.Quebec, Canada. Our ServicesNorth America segment utilizes approximately 80 offices70 facilities throughout North America (including Canada)Canada and Mexico). Our Products and Systems segment’s primary location is in our Princeton Junction, NJNew Jersey facility. Our International segment has approximately 40 offices35 facilities including locations in Belgium, Brazil, France, Germany, Greece, India, the Netherlands and the United Kingdom. We believe that all of our facilities are well maintained and are suitable and adequate for our current needs.the foreseeable future.
 
ITEM 3.LEGAL PROCEEDINGS
 
We are subject to periodic legal proceedings, investigations and claims that arise in the ordinary course of business. See “Litigation”“Legal Proceedings and Government Investigations - Litigation and Commercial Claims” in Note 18 — Commitments18-Commitments and Contingencies to our audited consolidated financial statements contained in Item 8 of this Annual Report for a description of legal proceedings involving us and our business, which is incorporated herein by reference.




ITEM 4.MINE SAFETY DISCLOSURES
 
None.


ITEM 5.MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASE OF EQUITY SECURITIES
 
Market for Common Stock
 
Our common stock currently trades on the New York Stock Exchange (NYSE) under the ticker symbol “MG.” The following table sets forth for the periods indicated the range of high and low sales prices, based on closing stock price, of our common stock.
 Year ended December 31, 2017
 High Low
Quarter ended March 31, 2017$26.33
 $20.00
Quarter ended June 30, 2017$22.78
 $20.54
Quarter ended September 30, 2017$22.51
 $17.12
Quarter ended December 31, 2017$23.47
 $20.38
 Transition period ended December 31, 2016
Transition period:High Low
Quarter ended June 30, 2016 (1)
$25.32
 $23.01
Quarter ended September 30, 2016$25.86
 $22.81
Quarter ended December 31, 2016$26.07
 $20.04

(1) The first quarter of the transition period ended December 31, 2016 (7-months) included only one month (June 1 - June 30, 2016) as a result of the change in our fiscal year-end.
  Year ended May 31, 2016 Year ended May 31, 2015
  High Low High Low
Quarter ended August 31, $20.14
 $13.88
 $25.04
 $20.70
Quarter ended November 30, $21.53
 $12.79
 $21.55
 $15.98
Quarter ended February 28, $22.59
 $18.42
 $21.50
 $15.87
Quarter ended May 31, $26.00
 $22.02
 $19.34
 $17.50
 
Holders of Record
 
As of March 5, 2018,6, 2024, there were 810 holders of record of our Common Stock.common stock. The number of record holders was determined from the records of our transfer agent and does not include beneficial owners of common stock whose shares are held in the names of various security brokers, dealers, and registered clearing agencies. The transfer agent of our common stock is American Stock Transfer & Trust Company, 6201 15th Avenue, Brooklyn, New York 11219.
 
Dividends
 
No cash dividends have been paid on our Common Stock to date. We currently intend to retain our future earnings, if any, to finance the expansion of our business and do not expect to pay any cash dividends in the foreseeable future.

Recent Sale of Unregistered Securities

None.

Stock Performance
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The line graph below compares the cumulative total shareholder value return of our common shares with the cumulative total returns of an overall stock market index, the Russell 3000, and our peer group index. This graph assumes an investment of $100 in our common shares and each index (with all dividends reinvested) on December 31, 2018.

performance graph.jpg
 
Purchases of Equity Securities
 
The following table sets forth the shares of our common stock we acquired during the fourth quarter of 20172023. All purchases were effected pursuant to the surrender of shares by employees to satisfy minimum tax withholding obligations in connection with the vesting of restricted stock units.
Month EndingTotal Number of Shares (or
Units) Purchased
Average Price Paid per
Share (or Unit)
October 31, 202327,352 $5.42 
November 30, 2023108 $6.71 
December 31, 2023118,102 $6.95 



`ITEM 6.[RESERVED]
32
Month Ending 
Total Number of
Shares (or Units)
Purchased
 
Average Price Paid
per Share (or Unit)
 
Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs (1)
 
Approximate dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs (2)
October 31, 2017 1,233 $20.69
 
 $25,081,657
November 30, 2017 2,741 $21.33
 
 $25,081,657
December 31, 2017 2,918 $23.47
 
 $25,081,657

(1) On August 17, 2016, the Company entered into an agreement with its founder, Chairman and then Chief Executive Officer, Dr. Sotirios Vahaviolos, which provided for the Company to repurchase up to 1 million sharesTable of its common stock from Dr.



  For the year ended For the Transition period ended For the year ended May 31,
  December 31, 2017 (1) December 31, 2016 (2) 2016 (3) 2015 (3) 2014 (3) 2013 (4) 
  ($ in thousands, except per share data)
Statement of Income Data:      
  
  
  
 
Revenues $700,970
 $404,161
 $719,181
 $711,252
 $623,447
 $529,282
 
Gross profit 187,712
 117,004
 203,008
 184,733
 172,943
 148,371
 
Income from operations 4,160
 17,533
 43,177
 30,353
 38,295
 27,554
 
Net (loss) income attributable to Mistras Group, Inc. $(2,175) $9,568
 $24,654
 $16,081
 $22,518
 $11,646
 
              
Per Share Information:      
  
  
  
 
Weighted average common shares outstanding:      
  
  
  
 
Basic 28,422
 28,989
 28,856
 28,613
 28,365
 28,141
 
Diluted 28,422
 30,125
 29,891
 29,590
 29,324
 29,106
 
(Loss) earnings per common share:      
  
  
  
 
Basic $(0.08) $0.33
 $0.85
 $0.56
 $0.79
 $0.41
 
Diluted $(0.08) $0.32
 $0.82
 $0.54
 $0.77
 $0.40
 
              
Balance Sheet Data:      
  
  
  
 
Cash and cash equivalents $27,541
 $19,154
 $21,188
 $10,555
 $10,020
 $7,802
 
Total assets 554,441
 469,427
 482,675
 471,727
 443,972
 377,997
 
Total long-term debt and obligations under capital leases, including current portion 181,491
 103,466
 104,776
 132,822
 97,563
 77,956
 
Total Mistras Group, Inc. stockholders’ equity $270,619
 $270,582
 $276,163
 $244,819
 $242,104
 $210,053
 
              
Cash Flow Data:      
  
  
  
 
Net cash provided by operating activities $55,239
 $30,259
 $68,124
 $49,840
 $36,873
 $43,503
 
Net cash used in investing activities (102,797) (17,374) (16,752) (49,651) (38,005) (45,479) 
Net cash (used in) provided by financing activities 53,605
 (12,869) (40,378) 2,066
 3,262
 1,144
 

1- Includes pre-tax charges of $21.0 million relating to special items. See the Income from Operations table in Item 7 for a description of these items. The impact of these items, net of taxes, on net income and diluted earnings per share was $14.9 million and $0.51, respectively, including a $2.0 million tax charge related to the Tax Act.

2- Includes pre-tax charges of $2.2 million relating to special items. The impact of these items, net of taxes, on net income and diluted earnings per share was ($1.6) million and ($0.05), respectively.


3 - Includes pre-tax charges (benefits) of $6.0 million in fiscal 2016, $0.1 million in fiscal 2015 and $(2.4) million in fiscal 2014 relating to special items. Net income was (decreased) increased by these items, net of taxes, by ($3.2) million in fiscal 2016, $1.0 million in fiscal 2015 and $2.4 million in fiscal 2014, respectively. The (decrease) increase of these items on diluted earnings per share were ($0.11) in fiscal 2016, $0.03 in fiscal 2015 and $0.08 in fiscal 2014, respectively.

4 - Includes pre-tax charges of $7.8 million relating to: goodwill impairment charge of $9.9 million and acquisition related benefit of ($2.1 million). The impact of these items, net of taxes, on net income and diluted earnings per share was ($8.3) million and ($0.29), respectively.




ITEM 7.MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONOPERATIONS
 
The following Management’s Discussion and Analysis (“MD(this “MD&A”) provides a narrativediscussion of our results of operations and financial position for the year ended December 31, 20172023. This section generally discusses 2023 and 2022 items and year-to-year comparisons between 2023 and 2022. Discussions of 2021 items and year-to-year comparisons between 2022 and 2021 are included in Part II–Item 7, Management's Discussion and Analysis of Financial Condition and Results of Operations of our Annual Report on Form 10-K for the comparable periodfiscal year ended December 31, 2016,2022 filed with the transition period ended December 31, 2016 and the comparable period ended December 31, 2015 (whichSEC on March 15, 2023, which discussion is referred to as "transition period 2015") and the fiscal years ended May 31, 2016 and 2015, respectively, and our financial position as of December 31, 2017 and December 31, 2016, respectively. Theincorporated herein by reference. This MD&A should be read together with our audited consolidated financial statements and related notes included in Item 8 in this Annual Report on Form 10-K.Report. Unless otherwise specified or the context otherwise requires, “Mistras,” “the Company,"MISTRAS," the "Company,” “we,” “us” and “our” refer to Mistras Group, Inc. and its consolidated subsidiaries. TheThis MD&A includes the following sections:
 
Forward-Looking Statements
OverviewCOVID-19 and Other Updates
Overview
Note about Non-GAAP Measures
Consolidated Results of Operations
Liquidity and Capital Resources
Critical Accounting Estimates
Recent Accounting Pronouncements



Forward-Looking Statements
 
This annual reportAnnual Report on Form 10-K, including this MD&A, contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 (Securities Act), and Section 21E of the Securities Exchange Act of 1934 (Exchange Act).Act. Such forward-looking statements include those that express plans, anticipation, intent, contingency, goals, targets or future development and/or otherwise are not statements of historical fact. These forward-looking statements are based on our current expectations and projections about future events and they are subject to risks and uncertainties known and unknown that could cause actual results and developments to differ materially from those expressed or implied in such statements. See “Forward-Looking Statements” at the beginning of Item 1 of this Annual Report.

COVID-19 and Other Updates

While our business and operations were negatively impacted the past several years by the COVID-19 pandemic, at the time of this Annual Report, the effects of the COVID-19 pandemic have subsided and our operations have normalized to pre-pandemic levels.

We are currently unable to predict with certainty the effects that inflationary pressures and the Russian-Ukrainian war may have on our business, results of operations or liquidity or in other ways which we cannot yet determine. To date, our European operations have experienced increased costs associated with higher energy costs, among others, due in part to the on-going war between Russia & Ukraine. We will continue to monitor market conditions and respond accordingly.

Overview

We offer our customers “one source for asset protection solutions”® and are a leading global"one source" multinational provider of integrated technology-enabled asset protection solutions, usedhelping to evaluatemaximize the structural integritysafety and reliability ofoperational uptime for civilization’s most critical energy, industrial and public infrastructure. We combine industry-leading productscivil assets.

Backed by an innovative, data-driven asset protection portfolio, proprietary technologies, strong commitment to Environmental, Social, and Governance ("ESG") initiatives, and a decades-long legacy of industry leadership, MISTRAS leads customers in the oil and gas, petrochemical, aerospace and defense, renewable and nonrenewable power, civil infrastructure, and manufacturing industries towards achieving operational and environmental excellence. By supporting these customers that help fuel our vehicles and power our society; inspecting components that are trusted for commercial, defense, and space craft; building real-time monitoring equipment to enable safe travel across bridges; and helping to propel sustainability, MISTRAS helps the world at large.

The Company enhances value for its customers by integrating asset protection throughout supply chains and centralizing integrity data through a suite of Industrial IoT-connected digital software and monitoring solutions. The Company’s core
33

capabilities also include non-destructive testing ("NDT") field and in-line inspections enhanced by advanced robotics, laboratory quality control and assurance testing, sensing technologies expertise inand NDT equipment, asset and mechanical integrity (MI), Non-Destructive Testing (NDT), Destructive Testing (DT),engineering services, and light mechanical maintenance and predictive maintenance (PdM) services, process and fixed asset engineering and consulting services, proprietary data analysis and our world class enterprise inspection database management and analysis software, PCMS, to deliver a comprehensive portfolio of customized solutions, ranging from routine inspections to complex, plant-wide asset integrity management and assessments. These mission critical solutions enhance our customers’ ability to comply with governmental safety and environmental regulations, extend the useful life of their assets, increase productivity, minimize repair costs, manage risk and avoid catastrophic disasters. access services.

Our operations consist of three reportable segments: North America (which we previously referred to as our Services segment), International, and Products and Systems.
 
ServicesNorth America provides asset protection solutions predominantly in North America, with the largest concentration in the United States, followed by Canada, consisting primarily of NDT, inspection, mechanical and engineering services that are used to evaluate the structural integrity and reliability of critical energy, industrial and public infrastructure.
infrastructure and commercial aerospace components. A majority of data analytical solutions revenues are generated by this segment.


International offers services, products and systems similar to those of the other segments to select markets within Europe, the Middle East, Africa, Asia and South America, but not to customers in China and South Korea, which are served by the Products and Systems segment.


Products and Systems designs, manufactures, sells, installs and services the Company’s asset protection products and systems, including equipment and instrumentation, predominantly in the United States.


Given the role our solutions play in ensuringenhancing the safe and efficient operation of infrastructure, we have historically provided a majority of our servicessolutions to our customers on a regular, recurring basis. We serveperform these services largely at our customers’ facilities, while primarily servicing our aerospace customers at our network of state-of-the-art, in-house laboratories. These solutions typically include NDT and inspection services, and can also include a global customer basewide range of companies with asset-intensive infrastructure,mechanical services, including companies in the oilheat tracing, pre-inspection insulation stripping, coating applications, re-insulation, engineering assessments and gas (downstream, midstream, upstreamlong-term condition-monitoring. Under this business model, many customers outsource their inspection to us on a “run and petrochemical), commercial aerospace and defense, power generation (natural gas, fossil, nuclear, alternative, renewable, and transmission and distribution), public infrastructure, chemicals, transportation, primary metals and metalworking, pharmaceutical/biotechnology and food processing industries and research and engineering institutions. As of December 31, 2017, we had approximately

6,000 employees in approximately 120 offices across 14 countries.maintain” basis. We have established long-term relationships as a critical solutions provider to many of the leading companies with asset-intensive infrastructure in our target markets. These markets include companies in the oil and gas, aerospace and defense, industrials, power generation and transmission (including alternative and renewable energy), other process industries and infrastructure, research and engineering and other industries.


For the last several years, weWe have focused on introducingproviding our advanced asset protection solutions to our customers using proprietary, technology-enabled software and testing instruments, including those developed by our Products and Systems segment. During this period, the demand for outsourced asset protection solutions, in general, has increased, creating demand from which our entire industry has benefited. We believe continued growth can be realized in all of our target markets. Concurrent with this growth, we are working on building our infrastructure to profitably absorb additional growth and have made a number ofnumerous acquisitions in the past in an effort to leverage our fixed costs, grow our base of experienced, certified personnel, expand our productservice lines and technical capabilities, and increase our geographical reach.
reach, complement our existing offerings, and leverage our fixed costs. We have increased our capabilities and the size of our customer base through the development of applied technologies and managed support services, organic growth and the integration of acquired companies. These acquisitions have provided us with additional products,service lines, technologies, resources and customers thatwhich we believe will enhance our advantages over our competition.


We believe long-term growth can be realized in our target markets. Our level of business and financial results are impacted by world-wide macro- and micro-economic conditions generally, as well as those within our target markets. Among other things, we expect the timing of our oil and gas customers' inspection expenditures to be impacted by oil price fluctuations.

We have continued providing our customers with an innovative asset protection software ecosystem through our MISTRAS OneSuite platform. The software platform offers functions of MISTRAS' software and services brands as integrated apps on a cloud environment. OneSuite serves as a single access portal for customers' data activities and provides access to 90 plus applications being offered on one centralized platform.

2023 Developments

The Russian-Ukrainian war and the conflict in the Middle East between Israel and Hamas continue to create disruptions in the oil and gas market and the supply chain in general, which is resulting in some disruption to our business operations primarily in Europe due to increased energy costs in connection with the Russian-Ukrainian war.

In 2022, the Company eliminated substantially all of the COVID related cost reduction initiatives undertaken in 2020, including re-installment of the savings plan employer match and increasing wages back to pre-pandemic amounts. At the time of this Annual Report, the effects of the COVID-19 pandemic have subsided, and our operations are continuing to normalize to pre-pandemic levels.

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Our cash position and liquidity remain strong. As of December 31, 2023, our cash and cash equivalents balance was approximately $17.6 million and our Credit Agreement provides us with significant liquidity.

In April 2021, the Biden Administration announced aggressive initiatives to battle climate change, which includes potential plans for a significant reduction in the use of fossil fuels and a transition to electric vehicles and increased use of alternative energy. Any legislation or regulations that may be adopted to implement these measures may negatively impact our customers in the oil and gas market over the long-term, which presently is our largest market, although this initiative will likely benefit the alternative energy market, such as wind energy, for which we provide products and services. At this time, it is difficult to determine the magnitude and timing of the impact that climate change initiatives and legislation, if any, will have on these markets and the resulting impact on our business and operational results.

The Company is currently unable to predict with certainty the overall impact that the factors discussed above and the effect of inflationary pressures may have on its business, results of operations or liquidity or in other ways which the Company cannot yet determine. During the third quarter of 2023, a triggering event was identified within the Company's reporting units within the International segment due to decreased gross margin in the current period as a result of inflationary pressures and rising energy costs. This resulted in goodwill impairment charges of $13.8 million within the International reporting units during the third quarter of 2023. The Company will continue to monitor market conditions and respond accordingly. Refer to Item 1A. Risk Factors in Part I of our 2023 Annual Report.

Note about Non-GAAP Measures
 
The Company prepares its consolidated financial statements in accordance with U.S. GAAP. In this MD&A under the heading "Income (loss) from Operations", the non-GAAP financial performance measure "Income (loss) from operations before special items"items” is used for each of our three operating segments, the Corporate segment and the Total Company,"Total Company", with tables reconciling the measure to a financial measure under GAAP. This non-GAAP measurepresentation excludes from the GAAP measure "Income (loss) from Operations" (a) transaction expenses related to acquisitions, such as professional fees and due diligence costs, (b) the net changes in the fair value of acquisition-related contingent consideration liabilities, (c) impairment charges, (d) reorganization and (d)other costs, which includes items such as severance, labor relations matters and asset and lease termination costs and (e) other special items. These special itemsadjustments have been excluded from the GAAP measure because these expenses and credits are not related to the Company’sour or Segment’sany individual segment's core business operations. The acquisition related costs and special items can be a net expense or credit in any given period.

Our management uses this non-GAAP measure as a measure of operating performance and liquidity to assist in comparing performance from period to period on a consistent basis, as a measure for planning and forecasting overall expectations and for evaluating actual results against such expectations. We believe investors and other users of our financial statements benefit from the presentation of "Income before special items” for each of our three segments, the Corporate segment and the Total Companythis non-GAAP measure in evaluating our performance. Income (loss) before special items excludes the identified special items,adjustments, which provides additional tools to compare our core business operating performance on a consistent basis and measure underlying trends and results in our business. Income (loss) before special items is not used to determine incentive compensation for executives or employees, nor is it a replacement for the reported GAAP financial performance and/or necessarily comparable to the non-GAAP financial measures of other companies. Any measure that eliminates the foregoing items has material limitations as a performance or liquidity measure and should not be considered alternatives to net income (loss) or any other measures derived in accordance with GAAP. Because Income (loss) from operations before special items may not be calculated in the same manner by all companies, this measure may not be comparable to other companies non-GAAP financial measures.similarly titled measures used by other companies.
 

35

Consolidated Results of Operations

On January 3, 2017, the Company's Board of Directors approved a change in the Company's fiscal year end from May 31 to December 31, effective December 31, 2016. In connection with this change, we previously filed a Transition Report on Form 10-K to report the results of the seven-month transition period from June 1, 2016 to December 31, 2016. In this report, the periods presented are the year ended December 31, 2017, the seven-month transition period from June 1, 2016 to December 31, 2016 and the years ended May 31, 2016 and 2015. For comparison purposes, we have also included unaudited data for the year ended December 31, 2016 and for the seven months ended December 31, 2015.


Year ended December 31, 20172023 vs. Year ended December 31, 20162022


The following table summarizes our consolidated statementsConsolidated Statements of operationsIncome (Loss) for the years ended December 31, 20172023 and 2016:2022:

For the year ended December 31,
20232022
($ in thousands)
Revenue$705,473 $687,373 
Gross profit203,807 198,173 
Gross profit as a % of Revenue28.9 %28.8 %
Income (loss) from operations(1,904)19,799 
Income from operations as a % of Revenue(0.3)%2.9 %
Income (loss) before provision for income taxes(18,665)9,294 
Net income (loss)(17,445)6,574 
Net income (loss) attributable to Mistras Group, Inc.$(17,453)$6,499 

  For the year ended December 31,
  2017 2016 (unaudited)
  ($ in thousands)
Revenues $700,970
 $684,762
Gross profit 187,712
 194,134
Gross profit as a % of Revenue 27% 28%
Total operating expenses 183,552
 168,588
Operating expenses as a % of Revenue 26% 25%
Income from operations 4,160
 25,546
Income from operations as a % of Revenue 1% 4%
Interest expense 4,386
 3,075
(Loss) income before provision for income taxes (226) 22,471
Provision for income taxes 1,942
 8,008
Net (loss) income (2,168) 14,463
Less: net income attributable to noncontrolling interests, net of taxes 7
 54
Net (loss) income attributable to Mistras Group, Inc. $(2,175) $14,409


Revenues
 
Revenues by segment for the years ended December 31, 20172023 and 20162022 were as follows:
 For the year ended December 31,
 20232022
 ($ in thousands)
Revenue 
North America$579,330 $573,336 
International124,414 112,425 
Products and Systems12,986 12,727 
Corporate and eliminations(11,257)(11,115)
 $705,473 $687,373 

  For the year ended December 31,
  2017 2016 (unaudited)
  ($ in thousands)
Revenues  
  
Services $543,565
 $519,378
International 144,265
 148,761
Products and Systems 23,297
 26,049
Corporate and eliminations (10,157) (9,426)
  $700,970
 $684,762


Revenue was $701.0$705.5 million for the year ended December 31, 2017,2023, an increase of $16.2$18.1 million, or 2%2.6%, compared with the year ended December 31, 2016.2022. The increase was driven by the ServicesNorth America segment, which increased by $24.2experienced a revenue increase of $6.0 million, or 5%1.0%, partially offset by a decrease of $4.5 million, or 3% from the International segment and the Products and Systems segment, which decreased $2.8 million, or 11%. The Services segment increase was driven by mid-single digit acquisition growth.single-digit organic growth in certain end markets. The International segment decrease was drivenrevenues increased by a mid-single digit organic decline, offset by$12.0 million, or 10.7%, due predominantly to low single digitsingle-digit favorable impact of foreign exchange rates.rates and by mid single-digit organic growth. The Products and Systems segment decrease wasincreased by $0.3 million, or 2.0%, driven by lowerhigher sales volume.


Revenues from oilOil and gas customer revenue comprised approximately 59% and 56% of total revenue for the years ended December 31, 2023 and 2022, respectively. Aerospace and defense customer revenue comprised approximately 11% and 12% of total revenue for the years ended December 31, 2023 and 2022, respectively. Our top ten customers comprised 58%approximately 35% of total revenue for the years ended December 31, 2023 and 2022, with no customer accounting for 10% or more of total revenue in either period.

36

 For the year ended December 31,
 20232022
($ in thousands)
Oil and Gas Revenue by sub-category
Upstream$157,828 $146,056 
Midstream101,278 97,005 
Downstream156,889 144,691 
Total$415,995 $387,752 

Oil and gas upstream customer revenue increased approximately $11.8 million, or 8%, for the year ended December 31, 2017,2023 compared to 57%the year ended December 31, 2022, due to continued market share gains and expanded exploration operations, as compared to the prior year period.

Midstream customer revenues increased approximately $4.3 million, or 4%, for the year ended December 31, 2016. Revenues2023 compared to the year ended December 31, 2022, due to increased pipe inspection services.

Downstream customer revenue increased $12.2 million, or 8%, for the year ended December 31, 2023 compared to the year ended December 31, 2022, due to increased sales volume at customer refineries and increased customer turnarounds.

The following table presents revenue by type, explained directly below the table.
 For the year ended December 31,
 20232022
($ in thousands)
Revenue by type
Field Services$470,433 $455,051 
Shop Laboratories58,188 48,809 
Data Analytical Solutions72,458 62,410 
Other104,394 121,103 
Total$705,473 $687,373 

In presenting the allocation of revenues by type in the table above, management makes certain assumptions in its allocation of revenues from aerospace customers comprised 13%laboratories that provide more than one type of service. The allocation methodology and assumptions made are consistent for the years presented.

Field Services revenues are comprised of revenue derived primarily by technicians performing asset inspections and maintenance services for our customers at locations other than Mistras properties. Field Services revenue increased $15.4 million, or 3.4%, for the twelve months ended December 31, 20172023 as compared to the twelve months ended December 31, 2022. The increase was due to increased sales volume in our oil and 2016.gas end market for our North America and International segments.


Shop Laboratory revenues are comprised of quality assurance inspections of components and materials at our Mistras in-house laboratory facilities. Shop revenues increased $9.4 million, or 19.2%, for the twelve months ended December 31, 2023 as compared to the twelve months ended December 31, 2022. The increase was due to increased sales volume related to our commercial aerospace and industrials end markets.

Data Analytical Solutions revenues are comprised of revenue derived from data software sales & subscriptions, implementation services and analytics that offer insights and recommendations to improve asset integrity. Data Analytical Solutions revenue is derived from work performed by Mistras employees in our facilities, or at customer locations, using our proprietary portfolio of software applications. Data Analytical Solutions revenue increased $10.0 million, or 16.1%, for the twelve months ended December 31, 2023 as compared to the twelve months ended December 31, 2022. The increase was due primarily to increased sales volume within PCMS, Onstream and other Data Analytical Solutions offerings within our North America segment.

37

Other revenues are comprised of locations that perform both asset inspection services and testing of components and materials at in-house Mistras laboratories. Other revenues decreased $16.7 million, or 13.8%, for the twelve months ended December 31, 2023 as compared to the twelve months ended December 31, 2022. Other revenues in 2023 decreased primarily due to decreased sales within the aerospace and defense sector and due to declines in our other end markets within the North America and International segments as compared to the prior year period.

Gross Profit (Loss)

Gross profit (loss) by segment for the years ended December 31, 20172023 and December 31, 2016 was2022 were as follows:

For the year ended December 31,
20232022
($ in thousands)
Gross profit (loss) 
North America$163,960 $159,049 
    % of segment revenue28.3 %27.7 %
International33,610 33,591 
    % of segment revenue27.0 %29.9 %
Products and Systems6,457 5,490 
    % of segment revenue49.7 %43.1 %
Corporate and eliminations(220)43 
$203,807 $198,173 
    % of total revenue28.9 %28.8 %

  For the year ended December 31,
  2017 2016 (unaudited)
  ($ in thousands)
Gross profit  
  
Services $139,160
 $133,532
    % of segment revenue 25.6% 25.7%
International 38,974
 48,372
    % of segment revenue 27.0% 32.5%
Products and Systems 9,798
 11,956
    % of segment revenue 42.1% 45.9%
Corporate and eliminations (220) 274
  $187,712
 $194,134
    % of total revenue 26.8% 28.4%


Gross profit decreased $6.4increased $5.6 million, or 3%2.8%, for the year ended December 31, 20172023 compared to the year ended December 31, 2016, despite2022, with a sales increase of 2%$18.1 million, or 2.6%. Gross profit margin was 26.8%28.9% and 28.4%28.8% for the years ended December 31, 20172023 and 2016, respectively.2022, respectively, due to favorable sales mix. North America segment gross profit margins had a year-on-year increase of 60 basis points to 28.3% for the year ended December 31, 2023, due primarily to favorable sales mix. International segment gross margins had a year-on-year declinedecrease of 550290 basis points to 27.0% for the year ended December 31, 2017. This decline was2023, due primarily driven by lower revenues in the Company's German subsidiary, as well as poor margins on a large contract and lower utilization of technical labor in the United Kingdom.to increased inflationary pressures. Products and Systems segment gross margins declinedincreased by 380660 basis points for the year ended December 31, 20172023 to 42.1%49.7%, driven by lower sales volumes and a less favorable sales mix. Services segment gross profit margins

Operating Expenses

Operating expenses for the years ended December 31, 2023 and 2022 was as follows:
For the year ended December 31,
20232022
($ in thousands)
Operating Expenses 
Selling, general and administrative expenses$166,749 $166,400 
Goodwill Impairment charges13,799 — 
Bad debt provision for troubled customers, net of recoveries— 42 
Reorganization and other costs12,269 195 
Research and engineering1,723 1,994 
Depreciation and amortization10,104 10,661 
Acquisition-related expense, net76 
Legal settlement and litigation charges (benefit), net1,058 (994)
$205,711 $178,374 
    % of total revenue29.2 %26.0 %

Operating expenses increased $27.3 million, or 15.3%, for the year ended December 31, 2023 compared to the year ended December 31, 2022 due primarily to impairment charges and reorganization charges recorded in the current period that were consistent withnot
38

in the prior year.period. Selling, general and administrative expenses increased $0.3 million, or 0.2% for the year ended December 31, 2023 compared to the year ended December 31, 2022 primarily due to unfavorable foreign currency exchange.



Income (Loss) from Operations.

The following table shows a reconciliation of segment income (loss) from operations to income (loss) before special items (unaudited) for the years ended December 31, 20172023 and 2016:2022:
 For the year ended December 31,
 20232022
 ($ in thousands)
North America: 
Income from operations (GAAP)$55,170 $49,616 
Bad debt provision for troubled customers, net of recoveries— 42 
Reorganization and other costs960 99 
Legal settlement and insurance (recoveries) charges, net1,058 (841)
Acquisition-related expense, net— 45 
Income before special items (non-GAAP)$57,188 $48,961 
International: 
Income (loss) from operations (GAAP)$(12,229)$3,566 
Goodwill Impairment charges13,799 — 
Reorganization and other costs351 (43)
Income before special items (non-GAAP)$1,921 $3,523 
Products and Systems:
Income (loss) from operations (GAAP)$267 $(992)
Reorganization and other costs382 — 
Income (loss) before special items (non-GAAP)$649 $(992)
Corporate and Eliminations: 
Loss from operations (GAAP)$(45,112)$(32,391)
Legal settlement and insurance (recoveries) charges, net— (153)
Loss on debt modification— 693 
Reorganization and other costs10,576 139 
Acquisition-related expense, net31 
Loss before special items (non-GAAP)$(34,527)$(31,681)
Total Company: 
Income (loss) from operations (GAAP)$(1,904)$19,799 
Goodwill Impairment charges13,799 — 
Bad debt provision for troubled customers, net of recoveries— 42 
Legal settlement and insurance (recoveries) charges, net1,058 (994)
Loss on debt modification— 693 
Reorganization and other costs12,269 195 
Acquisition-related expense, net76 
Income before special items (non-GAAP)$25,231 $19,811 

See "Note about Non-GAAP Measures" in this Annual Report for an explanation of our use of non-GAAP measures.

39

 For the year ended December 31,
 2017 2016 (unaudited)
 ($ in thousands)
Services: 
  
Income from operations (GAAP)$46,677
 $37,788
Litigation charges
 6,320
Bad debt provision for a customer bankruptcy1,200
 
Severance costs561
 77
Asset write-offs and lease terminations123
 
Acquisition-related (benefit) expense, net392
 (232)
Income before special items (non-GAAP)48,953
 43,953
    
International: 
  
Income from operations (GAAP)3,537
 12,908
Severance costs1,055
 1,184
Asset write-offs and lease terminations
 1,042
Acquisition-related (benefit) expense, net(501) (42)
Income before special items (non-GAAP)4,091
 15,092
    
Products and Systems:   
Loss from operations (GAAP)(16,991) (180)
Impairment charges15,810
 
Severance costs18
 31
Loss before special items (non-GAAP)(1,163) (149)
    
Corporate and Eliminations: 
  
Loss from operations (GAAP)(29,063) (24,970)
Litigation charges1,600
 
Severance costs184
 133
Acquisition-related expense (benefit), net591
 269
Loss before special items (non-GAAP)(26,688) (24,568)
    
Total Company: 
  
Income from operations (GAAP)$4,160
 $25,546
Litigation charges$1,600
 $6,320
Impairment charges$15,810
 $
Bad debt provision for a customer bankruptcy$1,200
 $
Severance costs$1,818
 $1,425
Asset write-offs and lease terminations$123
 $1,042
Acquisition-related (benefit) expense, net$482
 $(5)
Income before special items (non-GAAP)$25,193
 $34,328
Table of Contents

Total Company income from operations (GAAP) decreased by $21.4$21.7 million, or 84%109.6% compared to the year ended December 31, 2016.2022. Total Companycompany income before special items (non-GAAP) decreasedincreased by $9.1$5.4 million or 27%27.4% compared with the year

ended December 31, 2016.2022. Operating expenses, excluding special items (non-GAAP), as a percentage of revenue, was 25.3% for the year ended December 31, 2023 compared to 25.9% for the year ended December 31, 2022. The primary driver for the increase in total company income before special items was increased sales in 2023 compared to 2022. Income before special items declinedas a percentage of revenue increased by 14070 basis points to 3.6% for the year ended December 31, 20172023 from 5.0%2.9% for the year ended December 31, 2016.
Total operating expenses increased by $15.0 million, or 9% for the year ended December 31, 2017, driven primarily2022. Our discussion below is qualified by the $15.8 million impairment charges forunknown impact that the ProductsRussia - Ukraine war will continue to have on our business and Systems segment (See Notes 8 and 9the economy in general, including the notesresulting economic disruption. Refer to consolidated financial statementsItem 1A. Risk Factors in Item 8Part I of this Annual Report).Report for further discussion.

Interest Expense
 
Interest expense was $4.4$16.8 million and $3.1$10.5 million for the years ended December 31, 20172023 and December 31, 2016.2022, respectively. The increase was primarily relateddue to increased borrowings oninterest rates in the Company's revolving line of credit.current period.


Income Taxes


Our effective income tax rate was approximately (858)%6.5% for the year ended December 31, 2017,2023, compared to 36%29.3% for the year ended December 31, 2016.2022. The changedecrease in effective tax rate was primarily driven by a $1.7 million US R&D tax reformcredit benefit in 2022, partially offset by the United States.                                        recording of a $1.1 million valuation allowance recorded in 2022 which was related to certain Canadian entities.

On December 22, 2017,27, 2020, the United States enacted fundamental changes to federalthe Consolidated Appropriations Act, 2021, (the "Appropriations Act") an additional stimulus package providing financial relief for individuals and small business. The Appropriations Act contains a variety of tax law following the passageprovisions, including full expensing of business meals in 2021 and 2022, and expansion of the Tax Cutsemployee retention tax credit. We are currently evaluating the impact of this guidance on our consolidated financial position, results of operations, and Jobscash flows, but does not expect it to have a material impact.

Further in response to the COVID-19 pandemic, the American Rescue Plan Act was signed into law on March 11, 2021. This act, among other things, provides economic relief provisions to individuals and funding to certain businesses and programs. The Company does not expect this act to have a material impact.

On August 19, 2022, the United States enacted the Inflation Reduction Act, (the “Tax Act”"Inflation Act")., a package intended to reduce inflation. The TaxInflation Act is complex and significantly changes the U.S.contains a variety of tax provisions, including a 15% corporate minimum tax, system. Our financial statements for the year ended December 31, 2017 reflect certain effects of the Tax Act which includes a reduction in the corporate tax rate from 35% to 21%, imposition of a tax on unrepatriated foreign earnings (“stock repurchases, and various tax credit opportunities. We evaluated the transition tax”),impact of this guidance on our consolidated financial position, results of operations, and cash flows, and do not expect it to have a reduction to deferred tax assets attributable to changes made to executive compensation rules. As a result of the changes to tax laws and tax rates under the Tax Act, we incurred an increase in income tax expense of $1.9 million during the year ended December 31, 2017, which consisted primarily of a $2.3 million decrease in our net deferred tax liabilities due to the reduction in the federal corporate tax rate from 35% to 21%, an increase of $3.9 million in tax expense attributable to the transition tax, and a decrease in the realizability of deferred tax assets of $0.3 million due to changes made to executive compensation rules pursuant to the Tax Act.        material impact.


Income tax expense varies as a function of pre-tax income and the level of non-deductible expenses, such as certain amounts of meals and entertainment expense, valuation allowances, and other permanent differences. It is also affected by discrete items that may occur in any given year but are not consistent from year to year. Our effective income tax rate may fluctuate over the next few years due to many variables including the amount and future geographic distribution of our pre-tax income, changes resulting from our acquisition strategy, and increases or decreases in our permanent differences, and the effects of the Tax Act.differences.


Transition period ended December 31, 2016 vs. Transition period ended December 31, 2015

The following table summarizes our consolidated statements of operations for the transition periods ended December 31, 2016 and 2015:


  For the Transition period ended December 31,
  2016 2015 (unaudited)
  ($ in thousands)
Revenues $404,161
 $427,913
Gross profit 117,004
 123,190
Gross profit as a % of Revenue 29% 29%
Total operating expenses 99,471
 88,092
Operating expenses as a % of Revenue 25% 21%
Income from operations 17,533
 35,098
Income from operations as a % of Revenue 4% 8%
Interest expense 2,052
 3,672
Income before provision for income taxes 15,481
 31,426
Provision for income taxes 5,870
 11,627
Net income 9,611
 19,799
Less: net income (loss) attributable to noncontrolling interests, net of taxes 43
 (15)
Net income attributable to Mistras Group, Inc. $9,568
 $19,814

Revenues by segment for the transition periods ended December 31, 2016 and 2015 were as follows:

  For the Transition period ended December 31,
  2016 2015 (unaudited)
  ($ in thousands)
Revenues  
  
Services $293,218
 $327,118
International 104,013
 87,411
Products and Systems 14,541
 18,786
Corporate and eliminations (7,611) (5,402)
  $404,161
 $427,913

Revenue was $404.2 million for the transition period ended December 31, 2016, a decrease of $23.8 million, or 6% compared with the transition period ended December 31, 2015. The decrease was driven by the Services segment, which decreased by $33.9 million, or 10% and the Products and Systems segment, which decreased by $4.2 million, or 23%, partially offset by an increase of $16.6 million, or 19% from the International segment. The Services segment decrease was driven by low double digit organic decline, offset by a small amount of acquisition growth. The Products and Systems segment decrease was driven by lower sales volume. The International segment increase was driven by organic growth, offset partially by an unfavorable impact of foreign exchange rates.

Revenues from oil and gas customers comprised 55% for the transition period ended December 31, 2016.


Gross profit by segment for the transition periods ended December 31, 2016 and December 31, 2015 was as follows:
  For the Transition period ended December 31,
  2016 2015 (unaudited)
  ($ in thousands)
Gross profit  
  
Services $75,784
 $87,514
    % of segment revenue 25.8% 26.8%
International 34,210
 26,762
    % of segment revenue 32.9% 30.6%
Products and Systems 6,920
 8,986
    % of segment revenue 47.6% 47.8%
Corporate and eliminations 90
 (72)
  $117,004
 123,190
    % of total revenue 28.9% 28.8%

Gross profit decreased $6.2 million, or 5% for the transition period ended December 31, 2016 compared to the transition period ended December 31, 2015. As a percentage of revenues, gross profit improved by 10 basis points compared with the prior year to 28.9%.

The decrease in gross profit was primarily attributable to revenue declines in the Services segment of $11.7 million or 13% and in the Products and Systems segment of $2.1 million or 23%, offset in part by the International segment's improvement of $7.4 million or 28%. International gross profit margins improved to 32.9% of revenues in the transition period ended December 31, 2016 compared with 30.6% of revenues in the transition period ended December 31, 2015. The 230 basis point increase was due to improvement across the Company's largest country locations, driven by organic growth, improvements in technical labor utilization, sales mix and overhead utilization. Services segment gross profit margins decreased to 25.8% of revenues in the transition period ended December 31, 2016 compared with 26.8% of revenues in the transition period ended December 31, 2015. The 100 basis point decrease was primarily driven by lower sales volume and a less favorable sales mix. Products and Systems segment gross margins decreased by 20 basis points to 47.6% of revenues.

Income from Operations. The following table shows a reconciliation of the segment income from operations to income before for the transition periods ended December 31, 2016 and 2015:

 For the transition period ended December 31,
 2016 2015 (unaudited)
 ($ in thousands)
Services: 
  
Income from operations (GAAP)$22,411
 $37,175
Severance costs77
 188
Acquisition-related expense (benefit), net236
 (593)
Income before special items (non-GAAP)22,724
 36,770
    
International: 
  
Income from operations (GAAP)10,597
 6,888
Severance costs474
 175
Asset write-offs and lease terminations1,042
 
Acquisition-related expense (benefit), net29
 (457)
Income before special items (non-GAAP)12,142
 6,606
    
Products and Systems:   
(Loss) income from operations (GAAP)(254) 2,613
Severance costs14
 17
(Loss) income before special items (non-GAAP)(240) 2,630
    
Corporate and Eliminations: 
  
Loss from operations (GAAP)(15,221) (11,578)
Severance costs133
 
Acquisition-related expense (benefit), net231
 91
Loss before special items (non-GAAP)(14,857) (11,487)
    
Total Company: 
  
Income from operations (GAAP)$17,533
 $35,098
Severance costs$698
 $380
Asset write-offs and lease terminations$1,042
 $
Acquisition-related expense (benefit), net$496
 $(959)
Income before special items (non-GAAP)$19,769
 $34,519

Total Company income from operations (GAAP) decreased by $17.6 million, or 50% compared to the transition period ended December 31, 2015. Total Company income before special items (non-GAAP) decreased by $14.8 million or 43% compared with the transition period ended December 31, 2015. Income before special items declined by 320 basis points to 4.9% of revenues for the transition period ended December 31, 2016.
Total operating expenses increased by $11.4 million, or 13% in the transition period ended December 31, 2016 compared to the transition period ended December 31, 2015. The increase included approximately $5 million of expenses that were primarily associated with the acceleration of certain costs to align with our new fiscal year, and other charges which included severance and the write-off of an intangible asset.

Interest Expense

Interest expense was $2.1 million and $3.7 million for the transition periods ended December 31, 2016 and December 31, 2015, respectively. The decrease was primarily related to the repayment of seller notes related to acquisitions.

Income Taxes

Our effective income tax rate was 38% for the transition period ended December 31, 2016 compared to 37% for the transition period ended December 31, 2015. The higher effective tax rate was driven by the impact of permanent items.


Fiscal 2016 vs. 2015

The following table summarizes our consolidated statements of operations for fiscal 2016 and 2015:
 For the year ended May 31,
 2016 2015
 ($ in thousands)
Revenues$719,181
 $711,252
Gross profit203,008
 184,733
Gross profit as a % of Revenue28% 26%
Total operating expenses159,831
 154,380
Operating expenses as a % of Revenue22% 22%
Income from operations43,177
 30,353
Income from operations as a % of Revenue6% 4%
Interest expense4,762
 4,622
Income before provision for income taxes38,415
 25,731
Provision for income taxes13,765
 9,740
Net income24,650
 15,991
Less: net (loss) income attributable to noncontrolling interests, net of taxes(4) (90)
Net income attributable to Mistras Group, Inc.$24,654
 $16,081

Revenues by segment for fiscal 2016 and 2015 were as follows:
 For the year ended May 31,
 2016 2015 
 ($ in thousands)
Revenues 
  
 
Services$553,279
 $540,224
 
International143,025
 146,953
 
Products and Systems30,293
 31,255
 
Corporate and eliminations(7,416) (7,180) 
 $719,181
 $711,252
 
Revenue was $719.2 million in fiscal 2016, an increase of $7.9 million or 1% compared with fiscal 2015, driven by Services segment growth of $13.1 million or 2%, offset by declines in International revenues of $3.9 million or 3%, and the Products & Systems segment of $1.0 million or 3%. The Services segment increase was driven by low single digit organic growth, plus a lesser amount of acquisition-driven growth, offset in part by low single digit unfavorable impact of foreign exchange rates. The decline in International Segment revenues was driven by a combination of high single digit organic growth, which had positive contributions from each of the segment's four largest subsidiaries, that was more than offset by the low double digit unfavorable impact of foreign exchange rates. Products and Systems segment revenues declined due to lower sales volume.
Management believes that revenues generally declined in the inspection industry during fiscal 2016, as evidenced by several of the Company's competitors who reported revenue declines that have been driven by customers spending less on inspection due to pressures stemming from low commodities prices. Despite these difficult market conditions, the Company had modest growth in fiscal 2016, as noted above, driven by market share gains in both the Services and International segments. Revenues

from oil and gas customers comprised 56% and 52% of revenues in fiscal 2016 and 2015, respectively. The International segment’s largest revenue concentration in fiscal 2016 was aerospace and defense, which comprised 39% of segment revenues. One customer accounted for 10% of fiscal 2016 revenues.

Gross profit by segment for fiscal 2016 and 2015 was as follows:
 For the year ended May 31,
 2016 2015
 ($ in thousands)
Gross profit 
  
Services$145,262
 $135,201
    % of segment revenue26.3% 25.0%
International43,613
 34,572
    % of segment revenue30.5% 23.5%
Products and Systems14,022
 14,314
    % of segment revenue46.3% 45.8%
Corporate and eliminations111
 646
 $203,008
 $184,733
    % of total revenue28.2% 26.0%
Gross profit increased $18.3 million, or 10% in fiscal 2016 compared to fiscal 2015. As a percentage of revenues, gross profit margin improved by 220 basis points compared with the prior year to 28.2% in fiscal 2016.
The 2016 improvement in gross profit margin was primarily attributable to the International and Services segments. International segment gross margins improved to 30.5% of revenues in fiscal 2016 compared with 23.5% of revenues in the prior year. The 700 basis point increase was driven by improvement in the Company's four largest countries, driven by organic revenue growth, prior year management changes and staffing actions that improved technical labor utilization and improved sales mix. Services segment gross profit margin was 26.3% and 25.0% in fiscal 2016 and fiscal 2015, respectively. The 130 basis point improvement was driven by improvements in contract profitability and technician labor utilization. Products and Systems segment gross profit margin improved to 46.3% compared to 45.8% in the prior year driven by a more favorable sales mix which included fewer customized solutions.











Income from Operations. The following table shows a reconciliation of the segment income from operations to income before special items for fiscal 2016 and 2015:
 For the year ended May 31,
 2016 2015
 ($ in thousands)
Services: 
  
Income from operations (GAAP)$52,552
 $49,142
Legal settlement6,320
 
Severance costs188
 
Acquisition-related expense (benefit), net(1,061) (639)
Income before special items (non-GAAP)57,999
 48,503
    
International: 
  
Income (loss) from operations (GAAP)$9,293
 $(575)
Severance costs885
 1,082
Asset write-offs and lease terminations
 872
Acquisition-related expense (benefit), net(520) (2,926)
Income (loss) before special items (non-GAAP)9,658
 (1,547)
    
Products and Systems:   
Income from operations (GAAP)$2,688
 $2,461
Severance costs34
 99
Asset write-offs and lease terminations
 157
Acquisition-related expense (benefit), net
 
Income before special items (non-GAAP)2,722
 2,717
    
Corporate and Eliminations: 
  
Loss from operations (GAAP)$(21,356) $(20,675)
Severance costs
 542
Charges related to sale of foreign operations
 2,516
Acquisition-related expense (benefit), net128
 (1,602)
Loss before special items (non-GAAP)(21,228) (19,219)
    
Total Company: 
  
Income from operations (GAAP)$43,177
 $30,353
Legal settlement$6,320
 $
Severance costs$1,107
 $1,723
Asset write-offs and lease terminations$
 $1,029
Charges related to sale of foreign operations$
 $2,516
Acquisition-related expense (benefit), net$(1,453) $(5,167)
Income before special items (non-GAAP)$49,151
 $30,454
Total Company income from operations (GAAP) improved by $12.8 million, or 42% compared to fiscal 2015. Total Company income before special items (non-GAAP) improved by $18.7 million or 61% compared with fiscal 2015. Income before special items improved by 250 basis points to 6.8% of revenues in fiscal 2016. This improvement was driven by the Services and International segments. Services segment income from operations (GAAP) improved in fiscal 2016 by $3.4 million, or 7%, while income before special items (non-GAAP) improved by $9.5 million, or 20%. Services operating profit margin before

special items improved by 150 basis points to 10.5% in fiscal 2016, driven by the 130 basis point improvement in gross profit margin for the segment. International segment income before special charges improved by approximately 800 basis points to 7% in fiscal 2016, driven by the 700 basis point improvement in segment gross profit margin. Products and Systems fiscal 2016 operating margins before special charges of 9.0% improved by 30 basis points over 2015.
Total operating expenses increased by $5 million, or 4% in fiscal 2016 compared to fiscal 2015, driven by a $6.3 million legal settlement accrual, offset by a $1.3 million, or 1% decline in recurring expenses.

Interest Expense

Interest expense was $4.8 million and $4.6 million in fiscal 2016 and fiscal 2015, respectively.
Income Taxes

Our effective income tax rate was 36% for fiscal 2016 compared to 38% for fiscal 2015. The lower effective tax rate was driven by discrete items, including favorability from reserves pertaining to uncertain tax positions and the absence of increases in the valuation allowance for deferred tax assets in 2016.



Liquidity and Capital Resources
 
Overview
 
The Company hasWe have funded itsour operations from cash provided from operations, bank borrowings and capital lease financings. Management believes that the Company'sour existing cash and cash equivalents, anticipated cash flows from operating activities, and available borrowings under our credit agreementNew Credit Agreement will be more than sufficient to meet anticipated cash needs over the next 12 months. The Companymonths and for the foreseeable future. We generated operating cash flowflows of $55.2$26.7 million and $26.4 million for the yearyears ended December 31, 2017, $63.2 million for the year ended December 31, 20162023 and $30.3 million for the transition period ended December 31, 2016. The Company generated operating cash flow of $68.1 million in fiscal 2016 and $49.8 million in fiscal 2015.2022, respectively. Capital expenditures for the purchase of property, plant and equipment and of intangible assets was $20.6 million $15.9 million, $9.8 million, $16.2$23.6 million and $16.0$13.4 million for the years ended December 31, 20172023 and 2016, the transition period ended December 31, 2016 and for fiscal 2016 and 2015,2022, respectively.
 
40

Cash Flows Table
 
The following table summarizes our cash flows for the years ended December 31, 20172023 and 2016, the transition period ended December 31, 2016 and fiscal 2016 and 2015:2022:
  For the year ended December 31, For the Transition period ended December 31, For the year ended May 31,
  2017 2016 2016 2016 2015
($ in thousands)   (unaudited)      
Net cash provided by (used in):        
  
Operating activities $55,239
 $63,211
 $30,259
 $68,124
 $49,840
Investing activities (102,797) (22,408) (17,374) (16,752) (49,651)
Financing activities 53,605
 (30,031) (12,869) (40,378) 2,066
Effect of exchange rate changes on cash 2,340
 (1,217) (2,050) (361) (1,720)
Net change in cash and cash equivalents $8,387
 $9,555
 $(2,034) $10,633
 $535
For the year ended December 31,
($ in thousands)20232022
Net cash provided by (used in):
Operating activities$26,748 $26,406 
Investing activities(22,133)(12,238)
Financing activities(7,706)(16,323)
Effect of exchange rate changes on cash and cash equivalents249 (1,467)
Net change in cash and cash equivalents$(2,842)$(3,622)
 
Cash Flows from Operating Activities


Cash provided by operating activities for the year ended December 31, 20172023 was $55.2$26.7 million, a declinean increase of $8$0.3 million from the prior year.year period. The decreaseincrease was primarilymainly attributable to a lower level of net income, exclusive of the $15.8 million impairment charge during 2017. 

Cash providedmovements in working capital driven primarily by operating activities for the transition period ended December 31, 2016 was $30.3 million.

Cash provided by operating activities in fiscal 2016 improved by $18 million or 37% over the prior fiscal year. This improvement was primarily driven by the Company's $16 million improvementan increase in net income, as adjusted for working capital items and certain non-cash items, most notably the $6 million legal settlement, as well as from reducing Days Sales Outstanding by 2 days.
Cash provided by operating activities in fiscal 2015 improved by $13 million or 35% over the prior fiscal year. The improvement was primarily attributable to the timing of working capital inflows and outflows, namely a $28 million improvement in the timing of collections of accounts receivable offsetcollections, an increase in part by incremental net outflows of $15 million related to the timing of payments relating to accounts payable, and accrued expenses and other liabilities.liabilities, and an increase in accounts payable in the current year as compared to the prior year.


Cash Flows from Investing Activities


Net cash used in investing activities for the year ended December 31, 20172023 was $102.8$22.1 million, principally due to $83.4an increase of $9.9 million of acquisitions and $20.6 million purchases of property, plant and equipment and intangible assets. Net cash used in investing activities forfrom the prior year ended December 31, 2016 was $22.4period. The Company used $10.2 million principally due to $15.9 millionmore cash for purchases of property, plant and equipment and intangible assets as well as $8.3 million of acquisitions. in 2023 compared to 2022.

Net cash used in investing activities for the transition period ended December 31, 2016 was $17.4 million, principally due to $9.8 million purchases of property, plant and equipment and intangible assets and $8.3 million of acquisitions.

Net cash used in investing activities was $16.8 million in fiscal 2016, principally due to $16.2 million purchases of property, plant and equipment and intangible assets.

Net cash used in investing activities was $49.7 million in fiscal 2015, principally due to acquisitions totaling $34.7 million, and purchases of property, plant and equipment of $16.0 million.

Cash Flows from Financing Activities
 
Net cash provided by financing activities for the year ended December 31, 2017 was $53.6 million, derived from our net borrowings for the year of $71.5 million, which were primarily used to fund acquisitions, offset principally by $15.9 million of treasury stock purchases. Net cash used in financing activities for the year ended December 31, 20162023 was $30.0$7.7 million, driven primarily by $17.3compared to $16.3 million for the year ended December 31, 2022. During the year ended December 31, 2022, we entered into the New Credit Agreement which replaced our prior credit agreement, as detailed more in Note 11-Long-Term Debt. As part of net repaymentsthe New Credit Agreement, the prior revolving credit facility and term loan were repaid in full. Net repayment of debt and $9.0revolver was approximately $9.6 million of treasury stock purchases.

Net cash used in financing activitieshigher compared to 2022. In addition, for the transition periodyear ended December 31, 2016 was $12.92023, we incurred approximately $0.6 million driven primarily by $9 millionmore taxes paid related to net share settlement of treasury stock purchasesshare-based awards.

Effect of Exchange Rate Changes on Cash and $2 million of net repayments of debt.

Net cash used in financing activities in fiscal 2016 of $40 million consisted primarily of net repayments of debt totaling $36 million.Cash Equivalents
 
NetThe effect of exchange rate changes on our cash provided by financing activities in fiscal 2015and cash equivalents was $2 million.a decrease of $0.2 million for the year ended December 31, 2023, compared to a decrease of $1.5 million for the year ended December 31, 2022. The primary driver of the change was foreign currency fluctuations during the year related to the Euro and the US Dollar.

Cash Balance and Credit Facility Borrowings
 
The terms of our New Credit Agreement are described in Note 11-Long-Term Debtof the Notes to Consolidated Financial Statements in this Annual Report, under the heading "Senior Credit Facility", the provisions of which are incorporated herein.

As of December 31, 2017, the Company2023, we had cash and cash equivalents totaling $27.5$17.6 million of which $27.3 million is outside of the United States, and available borrowing capacity of up to $88.2$116.0 million under its credit agreement (as defined below).our New Credit Agreement. Borrowings of $156.9$186.4 million and letters of credit of $4.9$2.9 million were outstanding under the credit agreementNew Credit Agreement at December 31, 2017.2023. We finance our operations primarily through our existing cash balances, cash collected from operations, bank borrowings and capital lease financing. We believe these sources are sufficient to fund our operations for the foreseeable future.

On December 8, 2017, the Company entered into a Fourth Amended and Restated Credit Agreement (“Credit Agreement”). The Credit Agreement increased the Company’s revolving line of credit from $175.0 million to $250.0 million and provides that under certain circumstances the line of credit can be increased to $300.0 million. The Company may continue to borrow up to $30.0 million in non-U.S. Dollar currencies and use up to $10.0 million of the credit limit for the issuance of letters of credit. The maturity date of the Credit Agreement is December 7, 2022.

Loans under the Credit Agreement bear interest at LIBOR plus an applicable LIBOR margin ranging from 1% to 2%, or a base rate less a margin of 1.25% to 0.375%, at our option, based upon our Funded Debt Leverage Ratio. Funded Debt Leverage Ratio is generally the ratio of (1) all outstanding indebtedness for borrowed money and other interest-bearing indebtedness as of the date of determination to (2) EBITDA (which is (a) net income, less (b) income (or plus loss) from discontinued operations and extraordinary items, plus (c) income tax expenses, plus (d) interest expense, plus (e) depreciation, depletion, and amortization (including non-cash loss on retirement of assets), plus (f) stock compensation expense, less (g) cash expense related to stock compensation, plus (h) certain amounts of EBITDA of acquired business for the prior twelve months, plus (i) certain expenses related to the closing of the Credit Agreement, plus (j) non-cash expenses which do not (in the current or any future period) represent a cash item (excluding non-cash gains which increase net income), plus (k) non-recurring charges (not to exceed $5 million in the four consecutive quarters immediately preceding the date of determination) for items such as severance, lease termination charges, asset write-offs and litigation settlements paid during the period, all determined for the period of four consecutive fiscal quarters immediately preceding the date of determination. The Company has the benefit of the lowest margin if its Funded Debt Leverage Ratio is equal to or less than 0.5 to 1, and the margin increases as the ratio increases, to the maximum margin if the ratio is greater than 2.75 to 1. The Company will also bear additional costs for market disruption, regulatory changes effecting the lenders’ funding costs, and default pricing of an additional 2% interest rate margin on any amounts not paid when due. Amounts borrowed under the Credit Agreement are secured by liens on substantially all of the assets of the Company and is guaranteed by some of our subsidiaries.

The Credit Agreement contains financial covenants requiring that we maintain a Funded Debt Leverage Ratio of no greater than 3.50 to 1 and an Interest Coverage Ratio of at least 3.0 to 1. Interest Coverage Ratio means the ratio, as of any date of determination, of (a) EBITDA for the 12 month period immediately preceding the date of determination, to (b) all interest, premium payments, debt discount, fees, charges and related expenses of us and our subsidiaries in connection with borrowed money (including capitalized interest) or in connection with the deferred purchase price of assets, in each case to the extent treated as interest in accordance with GAAP, paid during the 12 month period immediately preceding the date of determination.
The Company can elect to increase the Funded Debt Leverage Ratio to 3.75 to 1 temporarily for four fiscal quarters immediately following the fiscal quarter in which the Company acquires another business. The Company can make this election twice during the term of the Credit Agreement.

The Credit Agreement also limits the Company’s ability to, among other things, create liens, make investments, incur more indebtedness, merge or consolidate, make dispositions of property, pay dividends and make distributions to stockholders or repurchase our stock, enter into a new line of business, enter into transactions with affiliates and enter into burdensome agreements. The Credit Agreement does not limit the Company’s ability to acquire other businesses or companies except that the acquired business or company must be in the Company's line of business, the Company must be in compliance with the financial covenants on a pro forma basis after taking into account the acquisition, and, if the acquired business is a separate subsidiary, in certain circumstances the lenders will receive the benefit of a guaranty of the subsidiary and liens on its assets and a pledge of its stock.

As of December 31, 2017, the Company was2023, we were in compliance with the terms of the New Credit Agreement and has undertaken towill continuously monitor our compliance with these covenants.the covenants contained in the New Credit Agreement. See Note 11-Long-Term Debt of the notes to the consolidated financial statements for additional information.

Liquidity and Capital Resources Outlook
 
Future Sources of Cash
41

 
We expect our future sources of cash to include cash flow generated from our operating activities and borrowings under our New Credit Agreement. Our revolving credit facility is available for cash advances required for working capital and for letters of credit to support our operations. Acquisitions, if any, are funded through available cash and borrowings under the revolving credit facility and seller notes.New Credit Agreement.
 
Future Uses of Cash
 
We expect our future uses of cash will primarily be for acquisitions, international expansion, stock repurchases,repayment of debt, purchases or manufacture of field testingfield-testing equipment to support growth, additional investments in technology and software products and the replacement of existing assets and equipment used in our operations. We often make purchases to support new sources of revenues, particularly in our ServicesNorth America segment. In addition, we will need toannually fund a certain amount of replacement equipment, including a portion of our fleet vehicles. We historically spend approximately 2% to 4%3% of our total revenues on capital expenditures, excluding acquisitions, and expect to fund these expenditures through a combination of cash and lease financing. Our cash capital expenditures, excluding acquisitions, for each of the yearyears ended December 31, 2017, the transition period ended December 31, 20162023 and for fiscal 2016 and 20152022 were approximately 3%, 2%, 2%3.4% and 2%2.0% of revenues, respectively. We continue to take steps to reduce spending and preserve cash.


Our New Credit Agreement does not limit the Company’s ability to acquire other businesses or companies except for certain provisions as described within Note 11-Long-Term Debt.Our future acquisitions may also require capital. We acquired three companies during the year ended December 31, 2017 and, three companies during the transition period ended December 31, 2016, with an aggregate cash outlay of $92.3 million. In some cases, additional equipment will be needed to upgrade the capabilities of these acquired companies. In addition, our future acquisition and capital spending may increase as we pursue growth opportunities and acquire additional equipment to meet or pursue business opportunities. Other investments in infrastructure, training and software may also be required to match our growth, but we plan to continue using a disciplined approach to building our business. In addition, we will use cash to fund our operating leases, capitalfinance leases, long-term debt repayments and various other obligations as they arise.arise as noted within Note 11-Long-Term Debt andNote 17- Leases.
 
We also expect to use cash to support our working capital requirements for our operations, particularly in the event of further growth and due to the impacts of seasonality on our business. Our future working capital requirements will depend on many factors, including the rate of our revenue growth, our introduction of new solutions and enhancements to existing solutions and our expansion of sales and marketing and product development activities. To the extent that our cash and cash equivalents and future cash flows from operating activities are insufficient to fund our future activities, we may need to raise additional funds through bank credit arrangements, or public or private equity, financings, or debt financings. We also may need to raise additional funds in the event we determine in the future to effect one or more acquisitions of businesses, technologies or products that will complement our existing operations. In the event additional funding is required, we may not be able to obtain bank credit arrangements or effect an equity or debt financing on acceptable terms.


Contractual Obligations
We generally do not enter into long-term minimum purchase commitments. Our principal commitments, in addition to those related to our long-term debt discussed below, consist of obligations under facility leases for office space and equipment leases and contingent consideration obligations in connection with our acquisitions.
The following table summarizes our outstanding contractual obligations as of December 31, 2017:
($ in thousands)  Total December 31, 2018 December 31, 2019 December 31, 2020 December 31, 2021 December 31, 2022 Thereafter
Long-term debt (1)  $166,878
 $2,358
 $1,664
 $1,243
 $892
 $157,728
 $2,993
Capital lease obligations (2)  15,344
 5,899
 3,788
 2,485
 1,778
 634
 760
Operating lease obligations 49,432
 11,542
 8,888
 6,902
 4,881
 4,304
 12,915
Contingent consideration obligations (3) 5,508
 3,430
 1,279
 799
 
 
 
Total $237,162
 $23,229
 $15,619
 $11,429
 $7,551
 $162,666
 $16,668


(1)Consists primarily of the principal portion of borrowings from our senior credit facility and seller notes payable in connection with our acquisitions and includes the current portion outstanding.

(2)Includes estimated cash interest to be paid over the remaining terms of the leases.

(3)Consists of payments deemed reasonably likely to occur in connection with our acquisitions.

Off-Balance Sheet Arrangements
 
During the yearyears ended December 31, 2017, the transition period ended December 31, 2016 as well as fiscal 20162023 and 2015,2022, we did not have any relationships with unconsolidated entities or financial partnerships, such as entities often referred to as structured finance or special purpose entities, which would have been established for the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes.
 
Critical Accounting Policies and Estimates
 
The preparation of financial statements in accordance with generally accepted accounting principlesU.S. GAAP requires that we make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of financial statements and the reported amounts of revenues and expenses during the reporting period. We have established policies and control procedures intended to ensure that estimation methods, including any judgments made as part of such methods, are well-controlled, independently reviewed and applied consistently from period to period. The accounting policies that we believe require more significant estimates and assumptions include:include revenue recognition, long-

livedacquisitions, long-lived assets and goodwill. We base our estimates and assumptions on historical experience, known or expected trends and various other assumptions that we believe to be reasonable. As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates, which may cause our future results to be significantly affected.
 
We believe that the following critical accounting policies comprise the more significant estimates and assumptions used in the preparation of our consolidated financial statements.
 
Revenue Recognition
 
Revenue is generally recognized when persuasive evidence
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Services
MostThe majority of our projectsrevenues are short-term in nature and revenue is primarily derived from providing services on a time and material basis. Service arrangements generally consist of inspection professionals working under contractbasis and are short-term in nature. We account for a fixed period of time or on a specific customer project.  Revenue is generally recognized when the service is performedrevenue in accordance with termsAccounting Standards Codification ("ASC") Topic 606, Revenue from Contracts with Customers.

Performance Obligations

A performance obligation is a promise in a contract to transfer a distinct good or service to the customer, and is the unit of account in ASC Topic 606. A contract’s transaction price is allocated to each distinct performance obligation and recognized as revenue when, or as, the performance obligation is satisfied. The majority of our contracts have a single performance obligation as the promise to transfer the individual goods or services is not separately identifiable from other promises in the contracts and is, therefore, not distinct. We provide highly integrated and bundled inspection services to our customers. Some of our contracts have multiple performance obligations, most commonly due to the contract providing both goods and services. For contracts with multiple performance obligations, we allocate the contract’s transaction price to each performance obligation using our best estimate of the standalone selling price of each customer arrangement, upon completion ofdistinct good or service in the earnings process and when collection is reasonably assured.  At the end of any reporting period, earned revenue is accrued for services that have been provided which have not yet been billed. Reimbursable costs, including those relatedcontract. The primary method used to travel and out-of-pocket expenses, are included in revenue, and equivalent amounts of reimbursable costs are included in cost of services.
Products and Systems
Sales of products and systems are recorded when the sales price is fixed and determinable and the risks and rewards of ownership are transferred (generally upon shipment) and when collectability is reasonably assured.

These arrangements occasionally contain multiple elements or deliverables, such as hardware, software (that is essential to the functionality of the hardware) and related services. We recognize revenue for delivered elements as separate units of accounting, when the delivered elements haveestimate standalone value, uncertainties regarding customer acceptance are resolved and there are no refund or return rights for the delivered elements. We establish the selling prices for each deliverable based on our vendor-specific objective evidence (“VSOE”), if available, third-party evidence, if VSOE is not available, or estimated selling price (“ESP”) if neither VSOE nor third-party evidence is available. We establish VSOE of selling price using the price charged for a deliverable when sold separately and, in rare instances, using the price established by management having the relevant authority. Third-party evidence of selling price is established by evaluating largely similara relative selling price based on price lists.

Contract modifications are not routine in the performance of our contracts. Generally, when contracts are modified, the modification is to account for changes in scope to the goods and interchangeable competitor productsservices that are provided. In most instances, contract modifications are for goods or services in standalone sales to similarly situated customers. We determine ESP by considering internal factors such as margin objectives, pricing practices and controls, customer segment pricing strategies and the product life cycle. Consideration is also given to market conditions such as competitor pricing strategies and industry technology life cycles. When determining ESP, we apply management judgment to establish margin objectives and pricing strategies and to evaluate market conditions and product life cycles. Changes in the aforementioned factors may result in a different allocation of revenue to the deliverables in multiple element arrangementsthat are distinct, and, therefore, may change the pattern and timing of revenue recognitionare accounted for these elements, but will not change the total revenue recognized for the arrangement.as a separate contract.

A portionOur performance obligations are satisfied over time as work progresses or at a point in time. The majority of our revenue recognized over time as work progresses is generated from engineeringrelated to our service deliverables, which includes providing testing, inspection and manufacturingmechanical services to our customers. Revenue is recognized over time based on time and material incurred to date which best portrays the transfer of customcontrol to the customer. We also utilize an available practical expedient that provides for revenue to be recognized in an amount that corresponds directly with the value to the customer of the entity’s performance completed to date. Fixed fee arrangements are determined based on expected labor, material and overhead to be consumed on fulfillment of such services. Revenue is recognized on a cost-to-cost method tracked on an input basis.

The majority of our revenue recognized at a point in time is related to product sales when the customer obtains control of the asset, which is generally upon shipment to the customer. Contract costs include labor, material and overhead.

We expect any significant remaining performance obligations to be satisfied within one year.

Contract Estimates

The majority of our revenues are short-term in nature. We have many Master Service Agreements ("MSAs") that specify an overall framework and contract terms, where we and our customers agree upon services or products underto be provided. The actual contracting to provide services or furnish products are triggered by a work order, purchase order, or some similar document issued pursuant to an MSA which sets forth the scope of services and/or identifies the products to be provided. From time to time, we may enter into long-term contracts, that may lastwhich can range from several months to several years, dependingyears. Revenue on the contract. Revenues fromsuch long-term contracts are recognized on the percentage-of-completion method of accounting. Under the percentage-of-completion method of accounting revenues areis recognized as work is performed. The percentage of completion at any point in time is generallyperformed based on total costs or total labor dollars incurred to date in relation to the total estimated costs or total labor dollars estimatedfor the performance of the contract at completion. The percentage of completion is then applied to the totalThis includes contract revenue to determine the amount of revenue to be recognized in the period. Application of the percentage-of-completion method of accounting requires the use of estimates of costs to be incurred for the performance of the contract. Contract costs include all direct materials, direct labor costs and those indirect costs related to contract performance, such as indirect labor, supplies, tools, repairs, and all costs associated with operation of equipment. The costCost estimation process is based upon the professional knowledge and experience of our engineers, project managers, engineers and financial professionals. Factors that are considered in estimating the work to be completed include the availability and productivity of labor, the nature and complexity of the work to be performed, the effect of change orders, the availability of materials, the effect of any delays in our project performance and the recoverability of any claims. Whenever revisions of estimatedestimates, contract costs andand/or contract values indicate that the contract costs will exceed estimated revenues, thus creating a loss, a provision for the total estimated loss is recorded in that period.

 
Long-Lived Assets
 
We perform a review of long-lived assets (or asset groups) for impairment when events or changes in circumstances indicate the carrying value of such assets may not be recoverable. If an indication of impairment is present, we compare the estimated undiscounted future net cash flows to be generated by the asset (or asset group) to its carrying amount. If the undiscounted future net cash flows are less than the carrying amount of the asset (or asset group), we record an impairment loss equal to the excess of the asset’s carrying amount over its fair value. We estimate fair value based on valuation techniques such as a discounted cash flow analysis or a comparison to fair values of similar assets. As of December 31, 20172023 and December 31, 2016,2022, we had $87.1$81.0 million and $73.1$77.6 million in net property, plant and equipment, respectively, and $63.7$44.0 million and $40.0$49.0 million in intangible assets, net, respectively. During the third quarter of 2017, there was a triggering event in the Products and Systems segment that resulted in a $2.6 million impairment charge of long-lived assets. (See Note 9 in the notes to consolidated financial statements in Item 8 of this Annual Report for further details) During the transition period ended December 31, 2016, $0.8 million of specifically identified assets were written off.
 
43

Goodwill


Goodwill represents the excess purchase price of acquired businesses over the fair values attributed to underlying net tangible assets and identifiable intangible assets. We test goodwill for impairment at a “reporting unit” level (which for the Companyus is represented by (i) our ServicesNorth America segment, (ii) our Products and Systems segment, and (iii) the European component of our International segment and (iv) the Brazilian component of our International segment). Our annual impairment test is conducted on the first day of our fourth quarter. In connection with the change in our fiscal year to December 31, our annual test datequarter, which is October 1. For the transition period ended December 31, 2016, a December 1 date was used and historically, prior to the fiscal year end change, the Company tested for impairment annually as of March 1. Goodwill is also tested for impairment whenever an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount. During the third quarter of 2017, there was a triggering event in the Products and Systems segment that resulted in a $13.2 million

In testing for goodwill impairment, charge. See Note 8 inwe have the notesoption to consolidated financial statements in Item 8first assess qualitative factors to determine whether the existence of this Annual Report for further details.

Ifevents or circumstances lead to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying value, thisamount. If, after assessing the totality of events and circumstances, we conclude that it is an indicatornot more likely than not that the goodwill assigned to thatfair value of a reporting unit may be impaired. Asis less than its carrying amount, then performing a result of the Company adopting ASU 2017-04,quantitative impairment test is not necessary. If we conclude otherwise, we are required to perform a quantitative impairment test.

An impairment will be recorded in the amount that the fair value is less than the carrying value, as the ASU eliminated step two of goodwill impairment process. The Company considersvalue. We consider the income and market approaches to estimating the fair value of our reporting units, which requires significant judgment in evaluation of economic and industry trends, estimated future cash flows, discount rates and other factors. Sustained declines in our stock price and related market capitalization could impact key assumptions in the overall estimated fair values of our reporting units and could result in non-cash impairment charges that could be material to our consolidated balance sheet or results of operations.


During the third quarter of 2023, a triggering event was identified within the Company's reporting units within the International segment due to decreased gross margin in the current period as a result of inflationary pressures and rising energy costs impacting the International reporting units' operations. As a result, the Company performed an interim quantitative goodwill impairment test.

In performing the interim quantitative goodwill impairment test and consistent with prior practice, the Company determined the fair value of each of the reporting units using a combination of the income approach and the market approach by assessing each of these valuation methodologies based upon availability and relevance of comparable company data and determining the appropriate weighting.

Under the income approach, the fair value for each of the reporting units was determined based on the present value of estimated future cash flows, discounted at an appropriate risk-adjusted rate. The Company used internal forecasts, updated for recent events, to estimate future cash flows estimated using a terminal value calculation, which incorporates historical and forecasted trends, including an estimate of long-term future growth rates, based on the Company’s most recent views of the long-term outlook for each reporting unit. The internal forecasts include assumptions about future profitability, including the expected demand for the Company’s goods and services. Due to the inherent uncertainties involved in making estimates and assumptions, actual results may differ from those assumed in the forecasts. The Company derived the discount rates using a capital asset pricing model and analyzing published rates for industries relevant to the reporting units to estimate the cost of equity financing. The Company used discount rates that are commensurate with the risks and uncertainties inherent in the respective businesses and in the internally developed forecasts, updated for recent events. Increased interest rates in the current period increased the discount rate associated with the reporting units which contributed in an unfavorable decrease in the reporting units value.

The market approach valuation was derived from metrics of publicly traded companies or historically completed transactions of comparable businesses. The selection of comparable businesses was based on the markets in which the reporting units operate, considering risk profiles, size, geography, and diversity of products and services.

Based upon the results of the interim quantitative goodwill impairment test, the Company recorded an impairment charge of $13.8 million within the International reporting units. The impairment was calculated based on the difference between the estimated fair value and the carrying value of the reporting units and is included in Goodwill impairment charges on the condensed consolidated statements of income (loss) for the three and nine months ended September 30, 2023. Any significant adverse changes in future periods to the Company’s internal forecasts or the external market conditions, if any, could reasonably be expected to negatively affect its key assumptions and may result in future goodwill impairment charges which could be material.

We elected to perform a quantitative assessment of goodwill on October 1, 2023. Our quantitative assessment considered relevant events and circumstances occurring since our interim quantitative goodwill impairment test performed as of September
44

30, 2023. Specifically, we considered changes in macroeconomic conditions, industry and market conditions, our internal forecasts of future revenue and expenses, our stock price, any significant events affecting the Company and actual changes in the carrying values of our net assets. After considering all positive and negative evidence for the assessment as of September 30, 2023, we concluded that it was not more likely than not that our carrying values exceeded fair values and as such, no additional impairment was indicated.

Additionally, as of December 31, 2023, there are no indicators of an impairment. See Note 8-Goodwill of the notes to the consolidated financial statements for additional information.

Acquisitions

We allocate the purchase price of acquired businesses to their identifiable tangible assets and liabilities as well as identifiable intangible assets, such as customer relationships, technology, non-compete agreements and trade names. Allocations are based on estimated fair values of assets and liabilities, which reflects assumptions that would be made by typical market participants if they were to buy or sell each asset on an individual asset basis. Certain estimates and judgments are required in the application of the fair value techniques, including estimates of the respective acquisitions' future performance and related cash flows, selection of a discount rate and economic lives, and use of Level 3 measurements as defined in ASC 820 Fair Value Measurements and Disclosure. Deferred taxes are recorded for any differences between the assigned values and tax bases of assets and liabilities. We typically engage third-party valuation experts to assist in determining the fair values for both identifiable tangible and intangible assets. The judgments made in determining the estimated fair value assigned to each class of assets acquired and liabilities assumed, as well as asset lives, could materially impact our results of operations. See Note 7-Acquisitions to the consolidated financial statements for additional information.

Recent Accounting Pronouncements


For information about recent accounting pronouncements, see Note 21-Summary of Significant Accounting Policies and Practices of the notes to the consolidated financial statements.


ITEM 7A.Quantitative and Qualitative Disclosures About Market RiskQUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
 
Interest Rate Sensitivity
 
The company’sOur investment portfolio primarily includes cash equivalents for which the market values are not significantly affected by changes in interest rates. Our interest rate risk results primarily from our variable rate indebtedness under our credit facility, which is influenced by movements in short-term rates. Borrowings under our $250.0$190 million revolving credit facility areas well as our $125 million term loan bear interest at SOFR, plus a credit spread adjustment and applicable SOFR margin, ranging from 1.25% to 2.75%, based on an LIBOR, plus an additional margin based onupon our Funded DebtTotal Consolidated Debt Leverage Ratio. Based on the amount of our variable rate debt $156.9of $186.4 million at December 31, 2017,2023, an increase in interest rates by one hundred basis points from our current rate would increase annual interest expense by approximately $1.6$1.9 million.
 
45

Foreign Currency Risk
 
We have foreign currency exposure related to our operations in foreign locations. This foreign currency exposure, particularly the Euro, British Pound Sterling, Brazilian Real, Canadian Dollar and the Indian Rupee, arises primarily from the translation of our foreign subsidiaries’ financial statements into U.S. Dollars. Gains and losses relating to nonfunctional currency transactions, are reported in the Consolidated Statements of Income (Loss). For example, a portion of our annual sales and operating costs are denominated in British Pound Sterling and we have exposure related to sales and operating costs increasing or decreasing based on changes in currency exchange rates. If the U.S. Dollar increases in value against these foreign currencies, the value in U.S. Dollars of the assets and liabilities originally recorded in these foreign currencies will decrease. Conversely, if the U.S.

Dollar decreases in value against these foreign currencies, the value in U.S. Dollars of the assets and liabilities originally recorded in these foreign currencies will increase. Thus, increases and decreases in the value of the U.S. Dollar relative to these foreign currencies have a direct impact on the value in U.S. Dollars of our foreign currency denominated assets and liabilities, even if the value of these items has not changed in their original currency. Translation adjustments for these movements are recorded as a separate component of Accumulated Other Comprehensive Income (Loss) in ShareholderStockholder Equity. For the year ended December 31, 2023, a 10% movement, favorable or unfavorable, in the average U.S. Dollar exchange rates would cause a change in adjusted operating income of approximately $1.5 million. We do not currently enter into forward exchange contracts to hedge exposures denominated in foreign currencies. An unfavorable 10% change (strengthening) in the average U.S. Dollar exchange rates for the year ended December 31, 2017 would cause a decrease in consolidated operating income of approximately $0.8 million and a favorable 10% change (weakening) would cause an increase of approximately $0.9 million. We may consider entering into hedging or forward exchange contracts in the future, as sales in international currencies increase due to growth in our International segment.
 
Fair Value of Financial Instruments


We do not have material exposure to market risk with respect to investments, as our investments consist primarily of highly liquid investments purchased with a remaining maturity of three months or less. We do not use derivative financial instruments for speculative or trading purposes; however, this does not preclude our adoption of specific hedging strategies in the future.
46
Effects

Table of Inflation and Changing PricesContents
Our results of operations and financial condition have not been significantly affected by inflation and changing prices.


ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
 
Report of Independent Registered Public Accounting Firm
The
To the Board of Directors and Stockholders
of Mistras Group, Inc.:

Opinions on the Consolidated Financial Statements and Internal Control Overover Financial Reporting

We have audited the accompanying consolidated balance sheetssheet of Mistras Group, Inc. and its subsidiaries (the “Company”) as of December 31, 20172023, and 2016, the related consolidated statements of income (loss) income,, of comprehensive income (loss), of equity and of cash flows for the year then ended, December 31, 2017, the seven month transition period ended December 31, 2016, and each of the years in the two-year period ended May 31, 2016, andincluding the related notes (collectively referred to as the “consolidated financial statements”). We also have audited the Company’sCompany's internal control over financial reporting as of December 31, 2017,2023, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.Commission (COSO).

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 2017 and 2016,2023, and the results of its operations and its cash flows for the year then ended December 31, 2017, the seven month transition period ended December 31, 2016, and each of the years in the two-year period ended May 31, 2016, in conformity with U.S.accounting principles generally accepted accounting principles.in the United States of America. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2017,2023, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.COSO.
The Company acquired three entities during 2017, and management excluded from its assessment of the effectiveness of the Company’s internal control over financial reporting as of December 31, 2017, these entities’ internal control over financial reporting associated with total assets of 4.0% and total revenues of 2.6% included in the consolidated financial statements of the Company as of and for the year ended December 31, 2017.  Our audit of internal control over financial reporting of the Company also excluded an evaluation of the internal control over financial reporting of these entities.
Basis for Opinions

The Company’sCompany's management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Report on Internal Control overOver Financial Reporting.Reporting appearing under Item 9A. Our responsibility is to express an opinionopinions on the Company’s consolidated financial statements and an opinion on the Company’sCompany's internal control over financial reporting based on our audits.audit. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (“PCAOB”)(PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our auditsaudit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the auditsaudit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.

Our auditsaudit of the consolidated financial statements included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audit also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinions.

Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

47

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Critical Audit Matters

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that (i) relates to accounts or disclosures that are material to the consolidated financial statements and (ii) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Goodwill Impairment Assessment - North America Reporting Unit

As described in Notes 1 and 8 to the consolidated financial statements, the Company’s goodwill balance was $187.4 million as of December 31, 2023, which related to the North America reporting unit. Management tests goodwill for impairment at a reporting unit level, which is represented by its North America segment. Management reviews goodwill for impairment on October 1 of each year and whenever events or changes in circumstances indicate the carrying value of goodwill may not be recoverable. Management considers the income and market approaches to estimate the fair value of the reporting unit, which requires significant judgments and assumptions related to revenue growth rates, gross margins, EBIT margins, and market multiples.

The principal considerations for our determination that performing procedures relating to the goodwill impairment assessment of the North America reporting unit is a critical audit matter are (i) the significant judgment by management when developing the fair value estimate of the North America reporting unit; (ii) a high degree of auditor judgment, subjectivity, and effort in performing procedures and evaluating management’s significant assumptions related to revenue growth rates, gross margins, and market multiples; and (iii) the audit effort involved the use of professionals with specialized skill and knowledge.

Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial statements. These procedures included testing the effectiveness of controls relating to management’s goodwill impairment assessment, including controls over the valuation of the North America reporting unit. These procedures also included, among others (i) testing management’s process for developing the fair value estimate of the North America reporting unit; (ii) evaluating the appropriateness of the income and market approaches used by management; (iii) testing the completeness and accuracy of underlying data used in the income and market approaches; and (iv) evaluating the reasonableness of the significant assumptions used by management related to revenue growth rates, gross margins, and market multiples. Evaluating management’s assumptions related to revenue growth rates and gross margins involved evaluating whether the assumptions used by management were reasonable considering (i) the current and past performance of the North America reporting unit; (ii) the consistency with external market and industry data; and (iii) whether the assumptions were consistent with evidence obtained in other areas of the audit. Professionals with specialized skill and knowledge were used to assist in evaluating (i) the appropriateness of the income and market approaches and (ii) the reasonableness of the market multiples assumption.

/s/ PricewaterhouseCoopers LLP
Philadelphia, Pennsylvania
March 11, 2024
We have served as the Company’s auditor since 2023.












48










Report of Independent Registered Public Accounting Firm

To the Stockholders and Board of Directors Mistras Group, Inc.:

Opinion on the Consolidated Financial Statements

We have audited the accompanying consolidated balance sheet of Mistras Group, Inc. and subsidiaries
(the Company) as of December 31, 2022, the related consolidated statements of income (loss), comprehensive income (loss), equity, and cash flows for each of the years in the two-year period ended December 31, 2022, and the related notes (collectively, the consolidated financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2022, and the results of its operations and its cash flows for each of the years in the two-year period ended December 31, 2022, in conformity with U.S. generally accepted accounting principles.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these consolidated financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.opinion.
Definition and Limitations of Internal Control Over Financial Reporting
A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in

accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.


/s/ KPMG LLP

We have served as the Company’s auditor since 2013.from 2013 to 2023.
Short Hills, New Jersey

March 15, 2023
March 14, 2018
49


Mistras Group, Inc. and Subsidiaries
Consolidated Balance Sheets
(in thousands, except share and per share data)data)
 December 31,
 2017 2016
ASSETS   
Current Assets   
Cash and cash equivalents$27,541
 $19,154
Accounts receivable, net138,080
 130,852
Inventories10,503
 10,017
Deferred income taxes
 6,230
Prepaid expenses and other current assets18,884
 16,399
Total current assets195,008
 182,652
Property, plant and equipment, net87,143
 73,149
Intangible assets, net63,739
 40,007
Goodwill203,438
 169,940
Deferred income taxes1,606
 1,086
Other assets3,507
 2,593
Total Assets$554,441
 $469,427
    
LIABILITIES AND EQUITY   
Current Liabilities   
Accounts payable$10,362
 $6,805
Accrued expenses and other current liabilities65,561
 58,697
Current portion of long-term debt2,358
 1,379
Current portion of capital lease obligations5,875
 6,488
Income taxes payable6,069
 4,342
Total current liabilities90,225
 77,711
Long-term debt, net of current portion164,520
 85,917
Obligations under capital leases, net of current portion8,738
 9,682
Deferred income taxes8,803
 17,584
Other long-term liabilities11,363
 7,789
Total Liabilities283,649
 198,683
    
Commitments and contingencies
 
    
Equity   
Preferred stock, 10,000,000 shares authorized
 
Common stock, $0.01 par value, 200,000,000 shares authorized, 28,294,968 and 29,216,745 shares issued282
 292
Additional paid-in capital222,425
 217,211
Treasury stock at cost, 0 and 420,258 shares
 (9,000)
Retained earnings64,717
 91,803
Accumulated other comprehensive loss(16,805) (29,724)
Total Mistras Group, Inc. stockholders’ equity270,619
 270,582
Non-controlling interests173
 162
Total Equity270,792
 270,744
Total Liabilities and Equity$554,441
 $469,427
 December 31,
 20232022
ASSETS
Current Assets
Cash and cash equivalents$17,646 $20,488 
Accounts receivable, net132,847 123,657 
Inventories15,283 13,556 
Prepaid expenses and other current assets14,580 10,181 
Total current assets180,356 167,882 
Property, plant and equipment, net80,972 77,561 
Intangible assets, net43,994 49,015 
Goodwill187,354 199,635 
Deferred income taxes2,316 779 
Other assets39,784 40,032 
Total Assets$534,776 $534,904 
LIABILITIES AND EQUITY
Current Liabilities
Accounts payable$17,032 $12,532 
Accrued expenses and other current liabilities84,331 77,844 
Current portion of long-term debt8,900 7,425 
Current portion of finance lease obligations5,159 4,201 
Income taxes payable1,101 1,726 
Total current liabilities116,523 103,728 
Long-term debt, net of current portion181,499 183,826 
Obligations under finance leases, net of current portion11,261 10,045 
Deferred income taxes2,552 6,283 
Other long-term liabilities32,438 32,273 
Total Liabilities$344,273 $336,155 
Commitments and contingencies
Equity
Preferred stock, 10,000,000 shares authorized— — 
Common stock, $0.01 par value, 200,000,000 shares authorized, 30,597,633 and 29,895,487 shares issued305 298 
Additional paid-in capital247,165 243,031 
Accumulated Deficit(28,942)(11,489)
Accumulated other comprehensive loss(28,336)(33,390)
Total Mistras Group, Inc. stockholders’ equity190,192 198,450 
Non-controlling interests311 299 
Total Equity190,503 198,749 
Total Liabilities and Equity$534,776 $534,904 
 
The accompanying notes are an integral part of these consolidated financial statements.

50

Mistras Group, Inc. and Subsidiaries
Consolidated Statements of Income (Loss) Income
(in thousands, except per share data)data)
 For the year ended December 31, For the transition period ended December 31, For the year ended May 31,
 2017 2016 2016 2015
      
  
Revenue$700,970
 $404,161
 $719,181
 $711,252
Cost of revenue492,238
 274,298
 494,911
 506,281
Depreciation21,020
 12,859
 21,262
 20,238
Gross profit187,712
 117,004
 203,008
 184,733
Selling, general and administrative expenses153,025
 91,058
 141,229
 143,978
Impairment charges15,810
 
 
 
Research and engineering2,272
 1,577
 2,523
 2,521
Depreciation and amortization10,363
 6,340
 11,212
 13,048
Acquisition-related expense (benefit), net482
 496
 (1,453) (5,167)
Litigation charges1,600
 
 6,320
 
Income from operations4,160
 17,533
 43,177
 30,353
Interest expense4,386
 2,052
 4,762
 4,622
(Loss) income before provision for income taxes(226) 15,481
 38,415
 25,731
Provision for income taxes1,942
 5,870
 13,765
 9,740
Net (loss) income(2,168) 9,611
 24,650
 15,991
Less: net income (loss) attributable to noncontrolling interests, net of taxes7
 43
 (4) (90)
Net (loss) income attributable to Mistras Group, Inc.$(2,175) $9,568
 $24,654
 $16,081
(Loss) earnings per common share     
  
Basic$(0.08) $0.33
 $0.85
 $0.56
Diluted$(0.08) $0.32
 $0.82
 $0.54
Weighted average common shares outstanding:   
  
  
Basic28,422
 28,989
 28,856
 28,613
Diluted28,422
 30,125
 29,891
 29,590
 For the year ended December 31,
 202320222021
Revenue$705,473 $687,373 $677,131 
Cost of revenue477,671 466,567 457,013 
Depreciation23,995 22,633 22,971 
Gross profit203,807 198,173 197,147 
Selling, general and administrative expenses166,749 166,400 161,334 
Bad debt provision for troubled customers, net of recoveries— 42 — 
Reorganization and other costs12,269 195 — 
Goodwill Impairment charges13,799 — — 
Legal settlement and litigation charges (benefit), net1,058 (994)2,042 
Research and engineering1,723 1,994 2,518 
Depreciation and amortization10,104 10,661 11,950 
Acquisition-related expense, net76 1,133 
Income (loss) from operations(1,904)19,799 18,170 
Interest expense16,761 10,505 10,882 
Income (loss) before provision (benefit) for income taxes(18,665)9,294 7,288 
Provision (benefit) for income taxes(1,220)2,720 3,395 
Net income (loss)(17,445)6,574 3,893 
Less: net income attributable to noncontrolling interests, net of taxes75 33 
Net income (loss) attributable to Mistras Group, Inc.$(17,453)$6,499 $3,860 
Earnings (loss) per common share
Basic$(0.58)$0.22 $0.13 
Diluted$(0.58)$0.21 $0.13 
Weighted average common shares outstanding:
Basic30,330 29,901 29,572 
Diluted30,330 30,229 30,130 
 
The accompanying notes are an integral part of these consolidated financial statements.



51

Mistras Group, Inc. and Subsidiaries
Consolidated Statements of Comprehensive Income (Loss)
(in thousands)
 For the year ended December 31, For the transition period ended December 31, For the year ended May 31,
 2017 2016 2016 2015 
Net (loss) income$(2,168) $9,611
 $24,650
 $15,991
 
    
     
Other comprehensive income (loss):     
  
 
Foreign currency translation adjustments12,919
 (9,625) 1,014
 (19,602) 
Comprehensive income (loss)10,751
 (14) 25,664
 (3,611) 
Less: net income (loss) attributable to noncontrolling interests7
 43
 (4) (90) 
Foreign currency translation adjustments attributable to noncontrolling interests4
 6
 1
 5
 
Comprehensive income (loss) attributable to Mistras Group, Inc.$10,748
 $(51) $25,669
 $(3,516) 
 For the year ended December 31,
 202320222021
Net income (loss)$(17,445)$6,574 $3,893 
Other comprehensive income (loss):
Foreign currency translation adjustments5,058 (13,084)(4,252)
Comprehensive loss(12,387)(6,510)(359)
Less: net income attributable to noncontrolling interests, net of taxes75 33 
Less: Foreign currency translation adjustments attributable to noncontrolling interests(5)(2)
Comprehensive loss attributable to Mistras Group, Inc.$(12,399)$(6,580)$(390)
 
The accompanying notes are an integral part of these consolidated financial statements.



52

Mistras Group, Inc. and Subsidiaries
Consolidated Statements of Equity
(in thousands)
 Common Stock Treasury Stock 
Additional
paid-in capital
 
Retained
earnings

 
Accumulated
other
comprehensive income (loss)
 
Total
Mistras Group,
Inc.
Stockholders’ Equity
 Noncontrolling Interest  
 Shares Amount Shares Amount      Total Equity
Balance at May 31, 201428,456
 $284
 
 $
 $201,831
 $41,500
 $(1,511) $242,104
 $288
 $242,392
                    
Net income
 
 
 
 
 16,081
 
 16,081
 (90) 15,991
Other comprehensive loss, net of tax
 
 
 
 
 
 (19,602) (19,602) (5) (19,607)
Share-based payments21
 
 
 
 6,579
 
 
 6,579
 
 6,579
Net settlement on vesting of restricted stock units161
 2
 
 
 (1,483) 
 
 (1,481) 
 (1,481)
Excess tax benefit from share-based payment compensation
 
 
 
 388
 
 
 388
 
 388
Exercise of stock options65
 1
 
 
 749
 
 
 750
 
 750
Balance at May 31, 201528,703
 $287
 
 $
 $208,064
 $57,581
 $(21,113) $244,819
 $193
 $245,012
                    
Net income
 
 
 
 
 24,654
 
 24,654
 (4) 24,650
Other comprehensive income, net of tax
 
 
 
 
 
 1,014
 1,014
 (64) 950
Share-based payments
 
 
 
 6,394
 
 
 6,394
 
 6,394
Net settlement on vesting of restricted stock units182
 2
 
 
 (1,093) 
 
 (1,091) 
 (1,091)
Excess tax benefit from share-based payment compensation
 
 
 
 (170) 
 
 (170) 
 (170)
Exercise of stock options55
 1
 
 
 542
 
 
 543
 
 543
Balance at May 31, 201628,940
 $290
 
 $
 $213,737
 $82,235
 $(20,099) $276,163
 $125
 $276,288
Net income
 
 
 
 
 9,568
 
 9,568
 43
 9,611
Other comprehensive loss, net of tax
 
 
 
 
 
 (9,625) (9,625) (6) (9,631)
Share-based payments
 
 
 
 4,627
 
 
 4,627
 
 4,627
Net settlement on vesting of restricted stock units212
 2
 
 
 (2,325) 
 
 (2,323) 
 (2,323)
Excess tax benefit from share-based payment compensation
 
 
 
 568
 
 
 568
 
 568
Purchase of treasury stock  
 (420) (9,000) 
 
 
 (9,000) 
 (9,000)
Exercise of stock options65
 
 
 
 604
 
 
 604
 
 604
Balance at December 31, 201629,217
 $292
 (420) $(9,000) $217,211
 $91,803

$(29,724) $270,582
 $162
 $270,744
Net loss
 
 
 
 
 (2,175) 
 (2,175) 7
 (2,168)
Other comprehensive income, net of tax
 
 
 
 
 
 12,919
 12,919
 4
 12,923
Share-based payments
 
 
 
 6,588
 
 
 6,588
 
 6,588
Net settlement on vesting of restricted stock units187
 2
 
 
 (1,649) 
 
 (1,647) 
 (1,647)
Retirement of treasury stock(1,146) (12) 1,146
 24,923
 
 (24,911) 
 
 
 
Purchase of treasury stock
 
 (726) (15,923) 
 
 
 (15,923) 
 (15,923)
Exercise of stock options37
 
 
 
 275
 
 
 275
 
 275
Balance at December 31, 201728,295
 $282
 
 $
 $222,425

$64,717

$(16,805) $270,619
 $173

$270,792
 Common StockAdditional
paid-in capital
Retained
earnings
(deficit)
Accumulated
other
comprehensive income (loss)
Total
Mistras Group,
Inc.
Stockholders’ Equity
Noncontrolling Interest 
 SharesAmountTotal Equity
Balance at December 31, 202029,234 $292 $234,638 $(21,848)$(16,061)$197,021 $198 $197,219 
Net loss— — — 3,860 — 3,860 33 3,893 
Other comprehensive income, net of tax— — — — (4,250)(4,250)(2)(4,252)
Share-based compensation— — 5,421 — — 5,421 — 5,421 
Net settlement on vesting of restricted stock units312 (1,372)— — (1,369)— (1,369)
Balance at December 31, 202129,546 $295 $238,687 $(17,988)$(20,311)$200,683 $229 $200,912 
Net income— — — 6,499 — 6,499 75 6,574 
Other comprehensive loss, net of tax— — — — (13,079)(13,079)(5)(13,084)
Share-based compensation— — 5,335 — — 5,335 — 5,335 
Net settlement of restricted stock units349 (991)— — (988)— (988)
Balance at December 31, 202229,895 $298 $243,031 $(11,489)$(33,390)$198,450 $299 $198,749 
Net income (loss)— — — (17,453)— (17,453)(17,445)
Other comprehensive loss, net of tax— — — — 5,054 5,054 5,058 
Share-based compensation— — 5,712 — — 5,712 — 5,712 
Net settlement of restricted stock units703 (1,578)— — (1,571)— (1,571)
Balance at December 31, 202330,598 $305 $247,165 $(28,942)$(28,336)$190,192 $311 $190,503 
 
The accompanying notes are an integral part of these consolidated financial statements.



53

Mistras Group, Inc. and Subsidiaries
Consolidated Statements of Cash Flows
(in thousands)
 For the year ended December 31,
 202320222021
Cash flows from operating activities
Net income (loss)$(17,445)$6,574 $3,893 
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Depreciation and amortization34,099 33,294 34,921 
Deferred income taxes(5,281)(517)87 
Share-based compensation expense5,712 5,335 5,421 
Impairment charges13,799 — — 
Bad debt provision for troubled customers, net of recoveries— 42 — 
Change in provision for doubtful accounts346 — — 
Foreign currency (gain) loss1,030 (208)417 
Payment of finance costs— (400)— 
Fair value adjustments to contingent consideration— 45 949 
Other(437)786 119 
Changes in operating assets and liabilities, net of effect of acquisitions and dispositions
Accounts receivable(8,026)(17,225)(3,979)
Inventories(1,867)(1,283)278 
Prepaid expenses and other assets(1,852)5,959 943 
Accounts payable4,177 (93)(1,139)
Accrued expenses and other liabilities4,010 (6,454)2,268 
Income taxes payable(580)1,084 (1,917)
Payment of contingent consideration in excess of initial estimate(937)(533)— 
Net cash provided by operating activities26,748 26,406 42,261 
Cash flows from investing activities
Purchase of property, plant and equipment(20,854)(12,591)(18,161)
Purchase of intangible assets(2,795)(825)(1,115)
Acquisition of businesses, net of cash acquired— — (440)
Proceeds from sale of equipment1,516 1,178 1,165 
Net cash used in investing activities(22,133)(12,238)(18,551)
Cash flows from financing activities
Repayment of finance lease obligations(5,047)(4,140)(4,060)
Proceeds from borrowings of long-term debt611 125,000 — 
Repayment of long-term debt(7,598)(81,405)(16,262)
Proceeds from revolver83,000 192,501 89,000 
Repayments of revolver(77,100)(246,750)(89,065)
Payments of financing costs— (147)(550)
Payment of contingent consideration for business acquisitions— (405)(938)
Taxes paid related to net share settlement of share-based awards(1,572)(977)(1,370)
Net cash used in financing activities(7,706)(16,323)(23,245)
Effect of exchange rate changes on cash and cash equivalents249 (1,467)(2,115)
Net change in cash and cash equivalents(2,842)(3,622)(1,650)
Cash and cash equivalents:
Beginning of period20,488 24,110 25,760 
End of period$17,646 $20,488 $24,110 
Supplemental disclosure of cash paid
Interest, net$17,078 $8,603 $10,078 
Income taxes, net$6,901 $(3,069)$4,707 
Noncash investing and financing
Equipment acquired through finance lease obligations$7,125 $5,076 $2,923 
 For the year ended December 31, For the transition period ended December 31, For the year ended May 31,
 2017 2016 2016 2015
Cash flows from operating activities     
  
Net (loss) income$(2,168) $9,611
 $24,650
 $15,991
Adjustments to reconcile net income to net cash provided by operating activities   
  
  
Depreciation and amortization31,383
 19,199
 32,474
 33,286
Deferred income taxes(4,854) (174) 240
 (1,745)
Share-based compensation expense6,574
 4,559
 6,514
 6,579
Impairment charges15,810
 
 
 
Bad debt provision for unexpected customer bankruptcy1,200
 
 
 
Charges associated with the exit of foreign operations
 
 
 2,516
Fair value adjustments to contingent consideration(463) 262
 (2,066) (5,382)
Other79
 559
 (1,052) 1,647
Changes in operating assets and liabilities, net of effect of acquisitions   
  
  
Accounts receivable2,490
 4,123
 (4,999) 3,982
Inventories(117) 628
 1,595
 388
Prepaid expenses and other current assets(2,464) (4,453) (1,812) (1,109)
Accounts payable2,574
 (3,667) 254
 (6,571)
Accrued expenses and other liabilities4,188
 (2,301) 10,187
 2,006
Income taxes payable1,007
 1,913
 2,139
 (1,748)
Net cash provided by operating activities55,239
 30,259
 68,124
 49,840
Cash flows from investing activities     
  
Purchase of property, plant and equipment(19,314) (9,093) (14,864) (15,104)
Purchase of intangible assets(1,255) (697) (1,315) (866)
Acquisition of businesses, net of cash acquired(83,424) (8,262) (1,743) (34,677)
Proceeds from sale of equipment1,196
 678
 1,170
 996
Net cash used in investing activities(102,797) (17,374) (16,752) (49,651)
Cash flows from financing activities     
  
Repayment of capital lease obligations(6,492) (4,490) (7,870) (8,653)
Proceeds from borrowings of long-term debt6,653
 386
 2,737
 2,232
Repayment of long-term debt(2,101) (11,919) (17,580) (11,457)
Proceeds from revolver124,000
 48,400
 55,800
 110,300
Repayments of revolver(50,600) (34,300) (69,600) (86,800)
Payment of contingent consideration for business acquisitions(560) (795) (3,147) (3,213)
Purchases of treasury stock(15,923) (9,000) 
 
Taxes paid related to net share settlement of share-based awards(1,647) (2,323) (1,091) (1,481)
Excess tax benefit from share-based compensation
 568
 (170) 388
Proceeds from the exercise of stock options275
 604
 543
 750
Net cash provided by (used in) financing activities53,605
 (12,869) (40,378) 2,066
Effect of exchange rate changes on cash and cash equivalents2,340
 (2,050) (361) (1,720)
Net change in cash and cash equivalents8,387
 (2,034) 10,633
 535
Cash and cash equivalents:   
  
  
Beginning of period19,154
 21,188
 10,555
 10,020
End of period$27,541
 $19,154
 $21,188
 $10,555
Supplemental disclosure of cash paid     
  
Interest$4,264
 $2,079
 $4,151
 $4,504
Income taxes$3,063
 $8,119
 $10,686
 $13,243
Noncash investing and financing     
  
Equipment acquired through capital lease obligations$3,185
 $1,829
 $8,248
 $8,031
Issuance of notes payable and other debt obligations primarily related to acquisitions$
 $325
 $
 $20,480
 
The accompanying notes are an integral part of these consolidated financial statements.

54

Mistras Group, Inc. and Subsidiaries
Notes to Consolidated Financial Statements
(tabular dollars in thousands, except per share data)
 
1. DescriptionSummary of BusinessSignificant Accounting Policies and Basis of PresentationPractices
 
Description of Business
 
Mistras Group, Inc. and, together with its subsidiaries (the Company)"Company"), is a leading “one source” globalmultinational provider of integrated technology-enabled asset protection solutions helping to maximize the safety and operational uptime for civilization’s most critical industrial and civil assets.

Backed by an innovative, data-driven asset protection portfolio, proprietary technologies and decades-long legacy of industry leadership, the Company helps customers with asset-intensive infrastructure in the oil and gas, aerospace and defense, industrials, power generation and transmission (including alternative and renewable energy), other process industries and infrastructure, research and engineering and other industries towards achieving and maintaining operational excellence. By supporting these organizations that help fuel our vehicles and power our society; inspecting components that are trusted for commercial, defense, and space craft; and building real-time monitoring systems to help avoid catastrophic incidents, the Company helps the world at large.

The Company enhances value for its customers by integrating asset protection throughout supply chains and centralizing integrity data through a suite of Industrial Internet of Things ("IoT")-connected digital software and monitoring solutions, including OneSuite™, which serves as an ecosystem platform, pulling together all of the Company’s software and data services capabilities, for the benefit of its customers.

The Company’s core capabilities also include non-destructive testing (“NDT”) field inspections enhanced by advanced robotics, laboratory quality control, laboratory materials services, shop laboratory assurance testing, sensing technologies and NDT equipment, asset and mechanical integrity engineering services, and light mechanical maintenance and access services.

The Company has three operating segments. During the first quarter of 2023, the Company renamed the Services segment to the North America segment to more closely align to the geographical area in which the Services segment operates. We did not recast the corresponding financial information for the historical periods presented, as there was no change in the manner which our chief operating decision maker reviews the financial results of each segment and allocates resources. Our Segments, with the updated naming convention, are as follows:

North America (Referred to as "Services" in prior filings). This segment provides asset protection solutions predominantly in North America, with the largest concentration in the United States, followed by Canada, consisting primarily of NDT, inspection, mechanical and engineering services that are used to evaluate the safety, structural integrity and reliability of critical energy, industrial and public infrastructure. The Company combines industry-leadinginfrastructure and commercial aerospace components. Software, digital and data services are included in this segment.
International. This segment offers services, products and technologies, expertisesystems similar to those of the other segments to select markets within Europe, the Middle East, Africa, Asia and South America, but not to customers in mechanical integrity (MI), non-destructive testing (NDT)China and mechanicalSouth Korea, which are served by the Products and Systems segment.
Products and Systems. This segment designs, manufactures, sells, installs and services the Company’s asset protection products and proprietary data analysis softwaresystems, including equipment and instrumentation, predominantly in the United States.

Recent Developments

During the third quarter of 2023, a triggering event was identified within the Company's reporting units within the International segment due to deliverdecreased gross margin in the current period as a comprehensive portfolioresult of customized solutions, ranging from routine inspectionsinflationary pressures and rising energy costs which resulted in impairment charges within the International reporting units of $13.8 million. Refer to complex, plant-wide asset integrity assessmentsNote 8-Goodwill.

During 2022, the Company experienced unfavorable foreign currency exchange impacts as it relates to the Company's European operations. Additionally, the Russian-Ukrainian war and management. These mission critical solutions enhance customers’ abilitythe conflict in the Middle East between Israel and Hamas continues to extend the useful life of their assets, increase productivity, minimize repair costs, comply with governmental safety and environmental regulations, manage risk and avoid catastrophic disasters. The Company serves a global customer base of companies with asset-intensive infrastructure, including companiescreate disruptions in the oil and gas commercial aerospacemarket and defense, fossilthe supply chain in general, which is resulting in some disruption to our business operations. The Company’s European operations are currently experiencing increased costs associated with higher energy costs, among others, due in part to the Russian-Ukrainian war.
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In 2022, the Company eliminated substantially all of the COVID related cost reduction initiatives undertaken in 2020, including re-instatement of the savings plan employer match and nuclear power, alternativeincreasing wages back to pre-pandemic amounts.

The Company is currently unable to predict with certainty the overall impact that the factors discussed above and renewable energy, public infrastructure, chemicals, transportation, primary metalsthe effect of inflationary pressures may have on its business, results of operations or liquidity or in other ways which the Company cannot yet determine. The Company will continue to monitor market conditions and metalworking, pharmaceutical/biotechnology and food processing industries and research and engineering institutions.respond accordingly.

Principles of Consolidation
 
The Company follows guidance on the consolidation of variable interest entities ("VIEs") that requires companies to utilize a qualitative approach to determine whether it is the primary beneficiary of a VIE. The process for identifying the primary beneficiary of a VIE requires consideration of the factors that indicate a party has the power to direct the activities that most significantly impact the VIE’s economic performance, including powers granted to the VIE’s program manager, powers contained in the VIE governing board and, to a certain extent, a company’s economic interest in the VIE. The Company analyzes its joint ventures and classifies them as either:
a VIE that must be consolidated because the Company is the primary beneficiary, or the joint venture is not a VIE and the Company holds the majority voting interest with no significant participative rights available to the other partners; or
a VIE that does not require consolidation and is treated as an equity method investment because the Company is not the primary beneficiary or the joint venture is not a VIE and the Company does not hold the majority voting interest.

As part of the above analysis, if it is determined that the Company has the power to direct the activities that most significantly impact the joint venture’s economic performance, the Company considers whether or not it has the obligation to absorb losses or rights to receive benefits of the VIE that could potentially be significant to the VIE.

The Company became the primary beneficiary in July 2020 of a VIE in which the Company has a 49% interest in a limited partnership, and a 49% stockholder in the corporate general partner of the limited partnership. The Company consolidated the financial statements of the VIE with the financial statements of the Company. As of and for the year ended December 31, 2023, the VIE had immaterial assets and had approximately $3.0 million of revenue. The Company is the primary sub-contractor of the VIE.

The accompanying audited consolidated financial statements include the accounts of Mistras Group, Inc. as well as its wholly-owned subsidiaries, majority-owned subsidiaries and its wholly and majority-owned subsidiaries.consolidated VIE. For subsidiaries in which the Company’s ownership interest is less than 100%, the non-controlling interests are reported in stockholders’ equity in the accompanying consolidated balance sheets.Consolidated Balance Sheets. The non-controlling interests in net income,results, net of tax, is classified separately in the accompanying consolidated statementsConsolidated Statements of income.

On January 3, 2017, the Company's Board of Directors approved a change in the Company's fiscal year from May 31 to December 31, effective December 31, 2016. In connection with this change, we previously filed a Transition Report on Form 10-K to report the results of the seven-month transition period from June 1, 2016 to December 31, 2016. In this Annual Report, the periods presented are the year ended December 31, 2017, the seven-month transition period from June 1, 2016 to December 31, 2016 and the years ended May 31, 2016 and 2015. The Company has also included unaudited data for the year ended December 31, 2016 and for the seven months ended December 31, 2015 (See Note 21)Income (Loss).

All significant intercompany accounts and transactions have been eliminated in consolidation. For fiscal 2016 and 2015, Mistras Group, Inc.’s and its subsidiaries’ fiscal years ended on May 31 except for the subsidiaries in the International segment, which ended on April 30. Accordingly, the Company’s International segment subsidiaries were consolidated on a one-month lag. Therefore, in the quarter and year of acquisition,The results of operations of companies acquired subsidiaries in the International segment were generallyare included in consolidated results for one less month than the actual number of months from the acquisition date to the end of the reporting period. As discussed in Note 7 - Acquisitions and Dispositions, during the lag period in fiscal 2015, the Company sold an international subsidiary, and decided to sell two additional international subsidiaries. Effective December 31, 2016, the Company's International segment is no longer consolidated on a one month lag, and such change for the seven month transition period ended December 31, 2016 was not material.acquisition.


Reclassifications


Certain amounts in prior periods have been reclassified to conform to the current year presentation. Such reclassifications did not have a material effect on the Company's financial condition or results of operations as previously reported.


2. Summary of Significant Accounting Policies
Revenue Recognition
Revenue is generally recognized when persuasive evidence of an arrangement exists, services have been rendered or products have been delivered, the fee is fixed or determinable, and collectability is reasonably assured. Shipping and handling costs are included in cost of revenues. Taxes collected from customers and remitted to governmental authorities are presented in the consolidated statements of income on a net basis. One customer accounted for 11% and 12% of our revenues for the year ended December 31, 2017 and the transition period ended December 31, 2016, which primarily were generated from the Services

segment. One customer accounted for 10% of our revenues in fiscal 2016, which primarily were generated from the Services segment. No customer accounted for 10% or more of our revenues in fiscal 2015. The following revenue recognition policies define the manner in which we account for specific transaction types:
Services
Most of our projects are short-term in nature and revenue is primarily derived from providing services on a time and material basis.  Service arrangements generally consist of inspection professionals working under contract for a fixed period of time or on a specific customer project. Revenue is generally recognized when the service is performed in accordance with terms of each customer arrangement, upon completion of the earnings process and when collection is reasonably assured. At the end of any reporting period, earned revenue is accrued for services that have been provided which have not yet been billed. Reimbursable costs, including those related to travel and out-of-pocket expenses, are included in revenue, and equivalent amounts of reimbursable costs are included in cost of services.
Products and Systems
Sales of products and systems are recorded when the sales price is fixed and determinable and the risks and rewards of ownership are transferred (generally upon shipment) and when collectability is reasonably assured.
These arrangements occasionally contain multiple elements or deliverables, such as hardware, software (that is essential to the functionality of the hardware) and related services. The Company recognizes revenue for delivered elements as separate units of accounting, when the delivered elements have standalone value, uncertainties regarding customer acceptance are resolved and there are no refund or return rights for the delivered elements. The Company establishes the selling prices for each deliverable based on vendor-specific objective evidence (“VSOE”), if available, third-party evidence, if VSOE is not available, or estimated selling price (“ESP”) if neither VSOE nor third-party evidence is available. The Company establishes VSOE of selling price using the price charged for a deliverable when sold separately and, in rare instances, using the price established by management having the relevant authority. Third-party evidence of selling price is established by evaluating largely similar and interchangeable competitor products or services in standalone sales to similarly situated customers. The Company determines ESP, by considering internal factors such as margin objectives, pricing practices and controls, customer segment pricing strategies and the product life cycle. Consideration is also given to market conditions such as competitor pricing strategies and industry technology life cycles. When determining ESP, the Company applies management judgment to establish margin objectives and pricing strategies and to evaluate market conditions and product life cycles. Changes in the aforementioned factors may result in a different allocation of revenue to the deliverables in multiple element arrangements and therefore may change the pattern and timing of revenue recognition for these elements, but will not change the total revenue recognized for the arrangement.
A portion of the Company’s revenue is generated from engineering and manufacturing of custom products under long-term contracts that may last from several months to several years, depending on the contract. Revenues from long-term contracts are recognized on the percentage-of-completion method of accounting. Under the percentage-of-completion method of accounting revenues are recognized as work is performed. The percentage of completion at any point in time is generally based on total costs or total labor dollars incurred to date in relation to the total estimated costs or total labor dollars estimated at completion. The percentage of completion is then applied to the total contract revenue to determine the amount of revenue to be recognized in the period. Application of the percentage-of-completion method of accounting requires the use of estimates of costs to be incurred for the performance of the contract. Contract costs include all direct materials, direct labor costs and those indirect costs related to contract performance, such as indirect labor, supplies, tools, repairs, and all costs associated with operation of equipment. The cost estimation process is based upon the professional knowledge and experience of our engineers, project managers and financial professionals. Factors that are considered in estimating the work to be completed include the availability and productivity of labor, the nature and complexity of the work to be performed, the effect of change orders, the availability of materials, the effect of any delays in our project performance and the recoverability of any claims. Whenever revisions of estimated contract costs and contract values indicate that the contract costs will exceed estimated revenues, thus creating a loss, a provision for the total estimated loss is recorded in that period.

Use of Estimates
 
The preparation of financial statements in accordance with U.S. generally accepted accounting principles ("U.S. GAAP") requires that the Company make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue and expenses and disclosure of contingent assets and liabilities at the date of the financial statements. The Company bases its estimates and assumptions on historical experience, known or expected trends and various other assumptions that it believes to be reasonable. As future

events and their effects cannot be determined with precision, actual results could differ significantly from these estimates, which may cause the Company’s future results to be significantly affected.
 
Cash and Cash Equivalents
 
The Company considers all highly liquid investments purchased with an original maturity of three months or less to be cash equivalents.
56

Accounts Receivable
 
Accounts receivable are stated net ofReceivable and Allowance for Credit Losses

The Company maintains an allowance for doubtful accounts and sales allowances. Outstandingcredit losses on its accounts receivable balances, which represents its best estimate of current expected credit losses over the contractual life of the accounts receivable. When evaluating the adequacy of its allowance for credit losses each reporting period, the Company analyzes accounts receivable balances with similar risk characteristics on a collective basis, considering factors such as the aging of receivable balances, payment terms (primarily with 30 day terms), geographic location, historical loss experience, current information and future expectations (generally considered one year which is consistent with expected collectability of the Company's trade receivables).

The Company monitors and considers whether historical loss rates are reviewed periodically,consistent with expectation of supportable forward-looking estimates for its trade receivables noting any current or future economic considerations that would require adjusting the Company’s historical loss experience. Each reporting period, the Company reassesses whether any accounts receivable no longer share similar risk characteristics and allowancesshould instead be evaluated as part of another pool or on an individual basis. Changes to the allowance for credit losses are provided at such timeadjusted through credit loss expense, which is presented within Selling, general and administrative expenses in the Consolidated Statements of Income (Loss).
Concentration of Credit Risk

For each of the years ended December 31, 2023 and 2022, no customer represented 10% or more of the Company's revenue.

Financial instruments that managementpotentially subject the Company to concentrations of credit risk consist principally of cash and cash equivalents and accounts receivable. At times, cash deposits may exceed the limits insured by the Federal Deposit Insurance Corporation. The Company believes it is probable that such balances will not be collected within a reasonable periodexposed to any significant credit risk or risk of time. The Company extends credit to its customers based upon credit evaluations in the normal coursenonperformance of business, primarily with 30-day terms. Bad debts are provided for based on historical experience and management’s evaluation of outstanding accounts receivable. Accounts are written off when they are deemed uncollectible. One customer accounted for 7% and 11% of our accounts receivable as of December 31, 2017 and December 31, 2016, respectively.financial institutions.


Inventories
 
Inventories are stated at the lower of cost or net realizable value, as determined by using the first-in, first-out method, or market. Work in process and finished goods inventory include material, direct labor, variable costs and overhead.
 
Purchased and Internal-Use Software
 
The Company capitalizes certain costs that are incurred to purchase or to create and implement internal-use software, which includes software coding, installation and testing. Capitalized costs are amortized on a straight-line basis over three years, the estimated useful life of the software.
 
Property, Plant and Equipment
 
Property, plant and equipment are recorded at cost. Depreciation of property, plant and equipment is computed utilizing the straight-line method over the estimated useful lives of the assets. Amortization of leasehold improvements is computed utilizing the straight-line method over the shorter of the remaining lease term or estimated useful life. Repairs and maintenance costs are expensed as incurred.
 
Goodwill
 
Goodwill represents the excess purchase price of acquired businesses over the fair values attributed to underlying net tangible assets and identifiable intangible assets. We testThe Company tests goodwill for impairment at a “reporting unit” level (which for the Company is represented by (i) our Servicesits North America segment, (ii) ourits Products and Systems segment, and (iii) the European component of its International segment and (iv) the Brazilian component of ourits International segment). OurThe Company's annual impairment test is conducted on the first day of ourthe Company's fourth quarter. In connection with the change in our fiscal year to December 31, our annual test datequarter, which is October 1. For the transition period ended December 31, 2016, a December 1 date was used and historically, prior to the fiscal year end change, the Company tested for impairment annually as of March 1. Goodwill is also tested for impairment whenever an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount. During the third quarter of 2017, there was a triggering event in the Products and Systems segment that resulted in a $13.2 million

In testing for goodwill impairment, charge. See Note 8 for further details.the Company has the option to first assess qualitative factors to determine whether the existence of events or circumstances lead to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If, after assessing the totality of events and circumstances, the Company concludes that it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, then performing a quantitative

57

impairment test is not necessary. If the Company concludes otherwise, the Company is required to perform a quantitative impairment test.

If the fair value of a reporting unit is less than its carrying value, this is an indicator that the goodwill assigned to that reporting unit may be impaired. As a result of the Company adopting ASU 2017-04,An impairment will be recorded in the amount that the fair value is less than the carrying value, as the ASU eliminated step two of goodwill impairment process.value. The Company considers the income and market approaches to estimatingestimate the fair value of ourits reporting units, which requires significant judgment in evaluation of economic and industry trends, estimated future cash flows, discountassumptions related to revenue growth rates, gross margins, EBIT margins, and other factors.market multiples.


See Note 8-Goodwill for additional information related to the Company's goodwill impairment test during 2023.

Impairment of Long-lived Assets
 
The Company reviews the recoverability of its long-lived assets (or asset groups) on a periodic basiswhenever events or changes in order to identify indicatorscircumstances indicate that the carrying amount of a possible impairment.the long-lived asset (group) might not be recoverable. The assessment for potential impairment is based primarily on the Company’s ability to

recover the carrying value of its long-lived assets from expected future undiscounted cash flows. If the total expected future undiscounted cash flows are less than the carrying amount of the assets, a loss is recognized for the difference between fair value (computed based upon the expected future discounted cash flows) and the carrying value of the assets. During
Acquisitions

The Company allocates the third quarterpurchase price of 2017, there was a triggering eventacquired businesses to their identifiable tangible assets and liabilities as well as identifiable intangible assets, such as customer relationships, technology, non-compete agreements and trade names. Certain estimates and judgments are required in the Productsapplication of the fair value techniques, including estimates of the respective acquisition's future performance and Systems segment that resultedrelated cash flows, selection of a discount rate and economic lives, and use of Level 3 measurements as defined in a $2.6 million impairment chargeASC No. 820, Fair Value Measurements and Disclosure. Deferred taxes are recorded for any differences between the assigned values and tax bases of long-lived assets. See Note 9 for further details.assets and liabilities.

Research and Engineering


Research and product development costs are expensed as incurred.


Advertising, Promotions and Marketing
 
The costs for advertising, promotion and marketing programs are expensed as incurred and are included in selling, general and administrative expenses. Advertising expense was approximately $1.9$1.4 million, $1.2 million, $1.8$2.0 million and $2.2$1.0 million for the yearyears ended December 31, 2017, the transition period ended December 31, 20162023, 2022 and fiscal 2016 and 2015,2021, respectively.
 
Fair Value of Financial Instruments
 
The carrying amounts of cash and cash equivalents, accounts receivable, accounts payable and other financial current assets and liabilities approximate fair value based on the short-term nature of the items. The carrying value of long-term debt approximates fair value due to the variable-rate structure of the debt. The fair value of the Company’s notes payable and capital lease obligations approximate their carrying amounts as those obligations bear interest at rates which management believes would currently be available to the Company for similar obligations.
 
Foreign Currency Translation
 
The financial position and results of operations of the Company’s foreign subsidiaries are measured using their functional currencies, which are their local currencies. Assets and liabilities of foreign subsidiaries are translated into the U.S. Dollar at the exchange rates in effect at the balance sheet date. Income and expenses are translated at the average exchange rate during the period. Translation gains and losses are reported as a component of other comprehensive income (loss) income for the period and included in accumulated other comprehensive income (loss) income within stockholders’ equity.
 
Foreign currency (gains) and losses arising from transactions denominated in currencies other than the functional currency are included in net income, reported in SG&Aselling, general and administrative expenses, and were approximately $0.6$1.3 million, $(0.7) million, $(0.1)$(0.2) million, and $1.5$0.4 million for the yearyears ended December 31, 2017, transition period ended December 31, 20162023, 2022 and fiscal 2016 and 2015,2021, respectively.
Concentrations of Credit Risk
Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of cash and cash equivalents and accounts receivable. At times, cash deposits may exceed the limits insured by the Federal Deposit Insurance Corporation. The Company believes it is not exposed to any significant credit risk or risk of nonperformance of financial institutions.
 
Self-Insurance
 
The Company is self-insured for certain losses relating to workers’ compensation and health benefitsbenefit claims. The Company maintains third-party excess insurance coverage for all workers' compensation and health benefit claims in excess of
58

approximately $0.3 million per occurenceoccurrence to reduce its exposure from such claims. Self-insured losses are accrued when it is probable that an uninsured claim has been incurred but not reported and the amount of the loss can be reasonably estimated at the balance sheet date.
 
Share-based Compensation
 
The value of services received from employees and directors in exchange for an award of an equity instrument is measured based on the grant-date fair value of the award. Such value is recognized as a non-cash expense on a straight-line basis over the minimum period the individual provides services, which is typically the vesting period of the award with the exception of awards with graded vesting that contain an internal performance measure where each tranche is recognized on a straight-line basis over its vesting period subject to the probability of meeting the performance requirements and adjusted for the number of shares

expected to be earned. Awards to certain employees eligible for retirement prior to the award becoming fully vested are amortized to expense over the period through the date that the employee first becomes eligible to retire and is no longer required to provide service to earn the award. As share-based compensation expense is based on awards ultimately expected to vest, the amount of expense has beenis reduced for estimated forfeitures. The cost of these awards is recorded in selling, general and administrative expenseexpenses in the Company’s consolidated statementsConsolidated Statements of income.Income (Loss).
 
Income Taxes
 
Income taxes are accounted for under the asset and liability method. Deferred incomeWe recognize deferred tax assets and liabilities are recognizedat enacted income tax rates for the future tax consequences attributable totemporary differences between the financial statement carrying amountsreporting bases and the tax bases of existingour assets and liabilities and their respective tax bases and tax credit carry-forwards. Deferredliabilities. Any effects of changes in income tax assets and liabilitiesrates or tax laws are measured using enacted tax rates expected to apply to taxable incomeincluded in the years in which those temporary differences are expected to be recovered or settled. The effect on deferredprovision for income tax assets and liabilities of a change in tax rates is recognized in incometaxes in the period that includes the enactment date.of enactment. Our net deferred tax assets primarily consist of net operating loss carry forwards, or NOLs. A valuation allowance is provided if it is more likely than not that some or all of a deferred income tax asset will not be realized. Financial accounting standards prescribe a minimum recognition threshold aA current tax liability or asset is recognized for the estimated taxes payable or refundable on tax returns for the current and prior years.

We recognize the tax benefit from an uncertain tax position only if it is required to meet before beingmore likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements. These standards also provide guidancestatements from such a position are measured based on de-recognition, measurement, and classificationthe largest benefit that has a greater than 50% likelihood of amounts relating to uncertain tax positions, accounting for and disclosure of interest and penalties, accounting in interim periods and disclosures required. Interest and penalties related to unrecognized tax positions are recognized as incurred within “provision for income taxes” in the consolidated statements of income.being realized upon ultimate resolution.


Recent Accounting Pronouncements


In August 2015,March 2020 and updated in January 2021, the Financial Accounting Standards Board ("FASB")FASB issued Accounting Standards Update ("ASU") 2015-14, Revenue from Contracts with Customers2020-04 and 2021-01, “Reference Rate Reform (Topic 606)848): DeferralFacilitation of the Effective Date, which defersEffects of Reference Rate Reform on Financial Reporting.” The amendments provide optional guidance for a limited period of time to ease the effective date ofpotential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting. The guidance provides optional expedients and exceptions for applying U.S. GAAP to contract modifications and hedging relationships, subject to meeting certain criteria, that reference LIBOR or another rate that is expected to be discontinued. The amendments in ASU 2014-092020-04 are effective for all entities by one year. This update is effective for public business entities for annual reporting periods beginning after December 15, 2017, including interim periods within those reporting periods. Earlier application is permitted only as of annual reporting periods beginning afterMarch 12, 2020 through December 15, 2016, including interim reporting periods within that reporting period. ASU 2014-09 will become effective for31, 2024. The Company is currently evaluating applicable contracts and the Company beginning 2018. The ASU permits two methods of adoption: retrospectively to each prior reporting period presented (full retrospective method), or retrospectively withavailable expedients provided by the cumulative effect of initially applying the guidance recognized at the date of initial application (the cumulative catch-up transition method). The ASU also requires expanded disclosures relating to the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. Additionally, qualitative and quantitative disclosures are required about customer contracts, significant judgments and changes in judgments, and assets recognized from the costs to obtain or fulfill a contract.new guidance.


2. Revenue
The Company adopted ASU 2014-09 along withderives the related additional ASU’s on Topic 606 on January 1, 2018, utilizing the cumulative catch-up method. The resultmajority of adoption is immaterial to the Company's consolidated financial statements, largely because most of our projects are short-term in nature and billedits revenue by providing services on a time and material basis.basis that are short-term in
nature. The Company accounts for revenue in accordance with ASC Topic 606, Revenue from Contracts with Customers.

Performance Obligations

The Company provides highly integrated and bundled inspection services to its customers. The majority of the Company's contracts have a single performance obligation as the promise to transfer the individual goods or services is not separately identifiable from other promises in the contracts and is, therefore, not distinct. For contracts with multiple performance obligations, the Company allocates the contract’s transaction price to each performance obligation using the Company's best estimate of the standalone selling price of each distinct good or service in the contract. The primary method used to estimate standalone selling price is a relative selling price based on price lists.

59

Contract modifications are not routine in the performance of the Company's contracts. Generally, when contracts are modified, the modification is to account for changes in scope to the goods and services that are provided. In most instances, contract modifications are for goods or services that are distinct, and, therefore, are accounted for as a separate contract.

The Company's performance obligations are satisfied over time as work progresses or at a point in time. The majority of the Company's revenue is recognized over time as work progresses for the Company's service deliverables, which includes providing testing, inspection and mechanical services to our customers. Revenue is recognized over time, based on time and material incurred to date which best portrays the transfer of control to the customer. The Company also utilizes aan available practical expedient that provides for revenue to be recognizerecognized in an amount that corresponds directly with the value to the customer of the entity’s performance completed to date. Fixed fee arrangements are determined based on expected labor, material, and overhead to be consumed on fulfillment of such services. For these arrangements, revenue is recognized on a cost-to-cost method tracked on an input basis.

The majority of our revenue recognized at a point in time is related to product sales when the customer obtains control of the asset, which is generally upon shipment to the customer. Contract costs include labor, material and overhead.

The Company will make the additional required disclosures under Topic 606, starting withexpects any significant remaining performance obligations to be satisfied within one year.

Contract Estimates

The majority of the Company's condensed consolidatedrevenues are short-term in nature. The Company enters into master service agreements ("MSAs") with customers that specify an overall framework and contract terms. The actual contracting to provide services or furnish products are triggered by a work order, purchase order, or some similar document issued pursuant to an MSA which sets forth the scope of services and/or identifies the products to be provided. From time-to-time, the Company may enter into longer-term contracts, which can range from several months to several years. Revenue on certain contracts is recognized as work is performed based on total costs incurred to date in relation to the total estimated costs for the performance of the contract at completion. This includes contract estimates of costs to be incurred for the performance of the contract. Cost estimation is based upon the professional knowledge and experience of the Company's project managers, engineers and financial statementsprofessionals. Factors that are considered in estimating the work to be completed include the availability of materials, the effect of any delays in the first quarterCompany's project performance and the recoverability of 2018.any claims. Whenever revisions of estimates, contract costs and/or contract values indicate that the contract costs will exceed estimated revenues, thus creating a loss, a provision for the total estimated loss is recorded in that period.


In November 2015,Revenue by Category

The following series of tables present the FASB issued ASU No. 2015-17, Income Taxes (Topic 740)Company's disaggregated revenue:

Revenue by industry was as follows (in thousands):
Year ended December 31, 2023North AmericaInternationalProductsCorp/ElimTotal
Oil & Gas$379,221 $36,615 $159 $— $415,995 
Aerospace & Defense56,000 20,711 286 — 76,997 
Industrials42,518 26,292 1,773 — 70,583 
Power Generation and Transmission23,598 6,609 3,767 — 33,974 
Other Process Industries33,035 14,456 112 — 47,603 
Infrastructure, Research & Engineering16,620 9,320 3,168 — 29,108 
Petrochemical13,216 1,216 — — 14,432 
Other15,122 9,195 3,721 (11,257)16,781 
Total$579,330 $124,414 $12,986 $(11,257)$705,473 
60

Year ended December 31, 2022North AmericaInternationalProductsCorp/ElimTotal
Oil & Gas$356,763 $30,654 $335 $— $387,752 
Aerospace & Defense61,475 18,763 314 — 80,552 
Industrials38,197 23,703 2,083 — 63,983 
Power Generation and Transmission31,197 8,304 2,603 — 42,104 
Other Process Industries40,778 14,021 28 — 54,827 
Infrastructure, Research & Engineering15,283 7,946 3,994 — 27,223 
Petrochemical15,360 536 — — 15,896 
Other14,283 8,498 3,370 (11,115)15,036 
Total$573,336 $112,425 $12,727 $(11,115)$687,373 

Year ended December 31, 2021North AmericaInternationalProductsCorp/ElimTotal
Oil & Gas$330,880 $35,232 $808 $— $366,920 
Aerospace & Defense51,593 16,513 286 — 68,392 
Industrials41,873 24,000 1,842 — 67,715 
Power Generation and Transmission39,966 9,927 2,853 — 52,746 
Other Process Industries38,742 12,593 64 — 51,399 
Infrastructure, Research & Engineering16,809 11,496 3,985 — 32,290 
Petrochemical19,378 227 — — 19,605 
Other16,146 7,257 3,993 (9,332)18,064 
Total$555,387 $117,245 $13,831 $(9,332)$677,131 

Revenue per key geographic location was as follows (in thousands):
Year ended December 31, 2023North AmericaInternationalProductsCorp/ElimTotal
United States$495,764 $934 $5,956 $(2,372)$500,282 
Other Americas77,880 12,906 850 (4,697)86,939 
Europe3,655 105,934 1,927 (3,381)108,135 
Asia-Pacific2,031 4,640 4,253 (807)10,117 
Total$579,330 $124,414 $12,986 $(11,257)$705,473 
Year ended December 31, 2022North AmericaInternationalProductsCorp/ElimTotal
United States$485,551 $910 $6,495 $(3,083)$489,873 
Other Americas83,877 9,076 406 (4,105)89,254 
Europe2,811 99,714 1,896 (3,502)100,919 
Asia-Pacific1,097 2,725 3,930 (425)7,327 
Total$573,336 $112,425 $12,727 $(11,115)$687,373 
Year ended December 31, 2021North AmericaInternationalProductsCorp/ElimTotal
United States$472,125 $912 $6,469 $(4,284)$475,222 
Other Americas80,013 5,003 395 (1,768)83,643 
Europe1,841 108,411 2,174 (2,812)109,614 
Asia-Pacific1,408 2,919 4,793 (468)8,652 
Total$555,387 $117,245 $13,831 $(9,332)$677,131 

61

Contract Balances

The timing of revenue recognition, billings and cash collections results in billed accounts receivable, unbilled receivables (contract assets), and customer advances and deposits (contract liabilities) on the Consolidated Balance Sheet Classification of Deferred Taxes. This amendment will simplifySheets. Amounts are generally billed as work progresses in accordance with agreed-upon contractual terms, generally at periodic intervals (e.g., weekly, bi-weekly or monthly). Generally, billing occurs subsequent to revenue recognition, resulting in contract assets. However, the presentation of deferred taxCompany sometimes receives advances or deposits from its customers before revenue is recognized, resulting in contract liabilities. These assets and liabilities are aggregated on an individual contract basis and reported on the balance sheetConsolidated Balance Sheets at the end of each reporting period within accounts receivable, net or accrued expenses and require all deferred tax assetsother current liabilities.

Revenue recognized for 2023 and liabilities to be treated as non-current. ASU 2015-17 is effective for fiscal years, and interim periods within those fiscal years beginning after December 15, 2016, with early adoption permitted. The Company adopted this guidance prospectively beginning2022, that was included in the first quarter of 2017, which did not have a material impact on the consolidated financial statements and related disclosures.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). This amendment supersedes previous accounting guidance (Topic 840) and requires all leases, with the exception of leases with a term of 12 months or less, to be recorded on thecontract liability balance sheet as lease assets and lease liabilities. ASU 2016-02 is effective for fiscal years, and interim periods within those fiscal years beginning after December 15, 2018, with early adoption permitted. The standard requires lessees and lessors to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach.year was $6.3 million and $4.7 million, respectively. Changes in the contract asset and liability balances during the years ended December 31, 2023 and 2022, were not impacted by any other factors. The Company is evaluatingapplies the effect that ASU 2016-02 will have on its consolidated financial statements andpractical expedient to expense incremental costs incurred related disclosures.

In March 2016,to obtaining a contract when the FASB issued ASU No. 2016-09, Stock Compensation (Topic 718). This amendment simplifies certain aspects of accounting for share-based payment transactions, which include accounting for income taxes and the related impact on the statement of cash flows, an option to account for forfeitures when they occur in addition to the existing guidance to estimate the forfeitures of awards, classification of awards as either equity or liabilities and classification on the statement of cash flows for employee taxes paid to tax authorities on shares withheld for vesting. ASU 2016-09 is effective for fiscal years,

and interim periods within those fiscal years beginning after December 15, 2016, with early adoption permitted. The Company adopted this guidance prospectively beginning in the first quarter of 2017, and accordingly, is recording excess tax benefits and tax deficiencies as a component of income tax expense.

In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230). This amendment will provide guidance on the presentation and classification of specific cash flow items to improve consistency within the statement of cash flows. ASU 2016-15 is effective for fiscal years, and interim periods within those fiscal years beginning after December 15, 2017, with early adoption permitted. The Company does not expect that ASU 2016-15 will have a material impact on its consolidated financial statements and related disclosures.

In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows (Topic 230). This amendment will clarify the presentation of restricted cash on the statement of cash flows. Amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning and ending cash balances on the statement of cash flows. ASU 2016-18 is effective for fiscal years, and interim periods within those fiscal years beginning after December 15, 2017, with early adoption permitted. The Company does not expect that ASU 2016-18 will have a material impact on its consolidated financial statements and related disclosures.

In January 2017, the FASB issued ASU No. 2017-04, Intangibles-Goodwill and Other (Topic 350). This amendment eliminates Step Twoamortization period of the goodwill impairment test. Underasset that the amendments in this update, entities should perform the annual goodwill impairment test by comparing the carrying value of its reporting units to their fair value. An entity should record an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. Tax deductibility of goodwill should be considered in evaluating any reporting unit's impairment loss to be taken. ASU 2017-04Company otherwise would have recognized is effective for fiscal years beginning after December 15, 2019, with early adoption permitted. The Company early adopted ASU 2017-04 in the third quarter of 2017 for its consolidated financial statements and related disclosures. See Notes 8 and 9 for information on the impairment of assets in the Products and Systems reporting unit during the three months ended September 30, 2017.

In May 2017, the FASB issued ASU 2017-09, Compensation-Stock Compensation (Topic 718) Scope of Modification Accounting. This amendment provides guidance concerning which changes to the terms or conditions of a share-based payment require an entity to apply modification accounting. Certain changes to stock awards, notably administrative changes, do not require modification accounting. There are three specific criteria that need to be met in order to prove that modification accounting is not required. ASU 2017-09 is effective for fiscal years, and interim period within those fiscal years, beginning after December 15, 2017, with early adoption permitted. The Company does not expect that ASU 2017-09 will have a material impact on its consolidated financial statements and related disclosures.

In December 2017, the SEC staff issued Staff Accounting Bulletin No. 118 (“SAB 118”), which provides guidance on accounting for the tax effects of the Tax Cuts and Jobs Act (the "Tax Act"). SAB 118 provides a measurement period that should not extend beyond one year from the Tax Act enactment date for companies to complete the accounting under ASC 740. In accordance with SAB 118, a company must reflect the income tax effects of those aspects of the Act for which the accounting under ASC 740 is complete. To the extent that a company’s accounting for certain income tax effects of the Tax Act is incomplete but it is able to determine a reasonable estimate, it must record a provisional estimate in the financial statements. If a company cannot determine a provisional estimate to be included in the financial statements, it should continue to apply ASC 740 on the basis of the provisions of the tax laws that were in effect immediately before the enactment of the Tax Act. The Company considers the accounting for the Tax Act to be provisional as of December 31, 2017. The Company will complete the accounting for the tax effects of all of the provisions of the Tax Act within the required measurement period not to extend beyond one year from the enactment date.


or less.
 
3. Earnings per Share
 
Basic earnings (loss) per share is computed by dividing net income attributable to common shareholders(loss) by the weighted averageweighted-average number of shares outstanding during the period. Diluted earnings per share is computed by dividing net income attributable to common shareholders(loss) by the sum of (1) the weighted averageweighted-average number of shares of common stock outstanding during the period, and (2) the dilutive effect of assumed conversion of equity awards using the treasury stock method. With respect to the number of weighted averageweighted-average shares outstanding (denominator), diluted shares reflects: (i) only the exercise of options to acquire common stock to the extent that the options’ exercise prices are less than the average market price of common sharesstock during the period and (ii) the pro forma vesting of restricted stock units.
 
The following table sets forth the computations of basic and diluted earnings (loss) per share:

 For the year ended December 31, For the transition period ended December 31, For the year ended May 31,
 2017 2016 2016 2015
Basic (loss) earnings per share     
  
Numerator:     
  
Net (loss) income attributable to Mistras Group, Inc.$(2,175) $9,568
 $24,654
 $16,081
Denominator     
  
Weighted average common shares outstanding28,422
 28,989
 28,856
 28,613
Basic (loss) earnings per share$(0.08) $0.33
 $0.85
 $0.56
        
Diluted earnings per share:     
  
Numerator:     
  
Net income attributable to Mistras Group, Inc.$(2,175) $9,568
 $24,654
 $16,081
Denominator     
  
Weighted average common shares outstanding28,422
 28,989
 28,856
 28,613
Dilutive effect of stock options outstanding
 791
 712
 719
Dilutive effect of restricted stock units outstanding
 345
 323
 258
 28,422
 30,125
 29,891
 29,590
Diluted (loss) earnings per share$(0.08) $0.32
 $0.82
 $0.54
share (in thousands except share data):
 For the year ended December 31,
 202320222021
Basic earnings (loss) per share:
Numerator:
Net income (loss) attributable to Mistras Group, Inc.$(17,453)$6,499 $3,860 
Denominator
Weighted average common shares outstanding30,330 29,901 29,572 
Basic earnings (loss) per share$(0.58)$0.22 $0.13 
Diluted earnings (loss) per share:
Numerator:
Net income (loss) attributable to Mistras Group, Inc.$(17,453)$6,499 $3,860 
Denominator
Weighted average common shares outstanding30,330 29,901 29,572 
Dilutive effect of stock options outstanding— — 558 
Dilutive effect of restricted stock units outstanding— 328 — 
 30,330 30,229 30,130 
Diluted earnings (loss) per share$(0.58)$0.21 $0.13 
 
62

The following potential shares of common sharesstock were excluded from the computation of diluted earnings per share, as the effect would have been anti-dilutive:
 For the year ended December 31,
 202320222021
Potential shares of common stock attributable to restricted stock units (RSUs) and performance stock units (PSUs) outstanding (1)
547 1,005 109 
Potential shares of common stock attributable to stock options outstanding— 
Total547 1,006 114 

 For the year ended December 31, For the transition period ended December 31, For the year ended May 31,
 2017 2016 2016 2015
Potential common stock attributable to stock options outstanding810
(1 
) 

 5
 6
Potential common stock attributable to restricted stock units (RSUs) and performance stock units (PSUs) outstanding353
(2 
) 
2
 24
 1
Total1,163
 2
 29
 7

(1) - 805For the year ended December 31, 2023, 1,014,527 shares of common stock related to restricted stock and 250,000 stock options, were excluded from the calculation of diluted EPS due to the net loss for the period.


(2) - 351 shares related to RSUs and PSUs were excluded from the calculation of diluted EPS due to the net loss for the period.
4. Accounts Receivable net
 
Accounts receivable consist of the following:following (in thousands):
December 31, December 31, December 31,
2017 2016 20232022
Trade accounts receivable$141,952
 $133,704
Allowance for doubtful accounts(3,872) (2,852)
Allowance for credit losses
Accounts receivable, net$138,080
 $130,852
 
The Company had $14.4$18.5 million and $16.8$13.5 million of unbilled revenues accrued as of December 31, 20172023 and December 31, 2016, respectively.2022, respectively, which is included within the trade accounts receivable balance above. Unbilled revenuesrevenue is generally billed in the subsequent quarter to their revenue recognition. The Company considers unbilled receivables as short-term in nature as they are normally converted to trade receivables within 90 days, thus future changes in economic conditions will not have a significant effect on the credit loss estimate.

The Company was contracted to perform inspections of welds on various pipeline projects in Texas for a customer. As of December 31, 2017 are expected2019, approximately $1.4 million of past due receivables were outstanding from this customer. The Company received notice from the customer in December 2019, alleging that the work performed was not in compliance with the contract. The Company filed a lawsuit to be billedrecover the $1.4 million and other amounts due to the Company and the customer filed a counterclaim, alleging breach of contract and seeking damages. The Company recorded a full reserve for this receivable during 2019. The parties agreed to a settlement in the first quarter ending June 30, 2023, with releases executed in July 2023, whereby the Company released its claim for the $1.4 million of 2018.outstanding receivables. Accordingly, the receivable has been written off. See Note 18-Commitments and Contingencies for additional details.
 
5. Inventories

Inventories consist of the following:
 December 31, December 31,
 2017 2016
Raw materials$5,105
 $5,054
Work in progress1,192
 1,246
Finished goods2,746
 2,335
Services-related consumable supplies1,460
 1,382
Inventory$10,503
 $10,017
following (in thousands):
 December 31,
 20232022
Raw materials$6,099 $5,351 
Work in progress839 336 
Finished goods5,740 5,475 
Consumable supplies2,605 2,394 
Inventories$15,283 $13,556 
 
63

6. Property, Plant and Equipment net
 
Property, plant and equipment consist of the following:
 December 31, December 31, December 31,
Useful Life2017 2016 Useful Life20232022
(Years)    (Years)(in thousands)
Land $2,414
 $1,714
Building and improvements30-4024,003
 19,261
Office furniture and equipment5-814,230
 9,069
Machinery and equipment5-7191,721
 169,928
 232,368
 199,972
Accumulated depreciation and amortization (145,225) (126,823)
Property, plant and equipment, net $87,143
 $73,149
 
Depreciation expense was approximately $22.4$25.6 million, $14.0 million, $22.9$24.1 million, and $22.2$25.2 million for the yearyears ended December 31, 2017, the transition period ended December 31, 20162023, 2022 and fiscal 2016 and 2015,2021, respectively.
 
7. Acquisitions and Dispositions
Acquisitions

During the year ended December 31, 2017, the Company completed three acquisitions, one that performs mechanical services at height, located in Canada, a company located in the U.S. that primarily performs chemical and specialty process services and a company in the U.S. that performs a wide variety of non-destructive testing services. Both U.S. companies primarily provide services to the aerospace industry.

In these acquisitions, the Company acquired 100% of the equity interests of the entity based in Canada and one of the entities based in the U.S. in exchange for aggregate consideration of $79.5 million in cash, contingent consideration up to $2.4 million to be earned based upon the acquired business achieving specific performance metrics over the initial three years of operations from the acquisition date and $0.2 million for working capital adjustments yet to be finalized. The Company acquired the assets of one of the U.S. based entities noted above in exchange for aggregate consideration of $4.5 million in cash and contingent consideration up to $3.5 million to be earned based upon the acquired business achieving specific performance metrics over the initial three years of operations from the acquisition date. The Company accounted for these transactions in accordance with the acquisition method of accounting for business combinations.

During the transition period ended December 31, 2016, the Company completed three acquisitions. The Company purchased three companies, two that provide NDT services, located in Canada and one that provides mechanical services, located in the U.S.

For the Canadian acquisitions, the Company acquired 100% of the common stock of both acquirees in exchange for aggregate consideration of $1.3 million in cash, $0.3 million of notes payable and contingent consideration up to $0.6 million to be earned based upon the acquired businesses achieving specific performance metrics over their initial three years of operations

from their acquisition dates. For the U.S. acquisition, the Company acquired assets of the acquiree in exchange for aggregate consideration of $7.0 million in cash and contingent consideration up to $2.0 million to be earned based upon the acquired businesses achieving specific performance metrics over the initial three years of operations from its acquisition date. The Company accounted for these three transactions in accordance with the acquisition method of accounting for business combinations.

Assets and liabilities of the acquired businesses were included in the consolidated balance sheets as of December 31, 2017 based on their estimated fair value on the date of acquisition as determined in a purchase price allocation, using available information and making assumptions management believes are reasonable. The Company is still in the process of completing its valuation of the assets, both tangible and intangible, and liabilities acquired for two of the acquisitions completed during the year ended December 31, 2017. Goodwill of $41.7 million primarily relates to expected synergies and assembled workforce, of which $39.7 million is generally deductible for tax purposes. Other intangible assets, primarily related to customer relationships and covenants not to compete, were $31.7 million. The results of operations of each of the acquisitions completed during the year ended December 31, 2017 and the transition period ended December 31, 2016 are included in each respective operating segment’s results of operations from the date of acquisition. The following table summarizes the estimated fair value of the assets acquired and liabilities assumed, the Company's allocation of purchase price and any subsequent adjustments made during the year ended December 31, 2017 and the transition period ended December 31, 2016:
 Year ended December 31, 2017Transition Period
Number of entities3
3
   
Cash paid$83,963
$8,295
Working capital adjustments150

Notes payable
325
Contingent consideration3,407
1,630
Consideration paid$87,520
$10,250
   
Current net assets$7,165
$1,632
Debt and other long-term liabilities(2,848)(214)
Property, plant and equipment11,115
953
Deferred tax asset (liability)(1,278)392
Intangibles31,671
3,367
Goodwill41,695
4,120
Net assets acquired$87,520
$10,250
The amortization period for intangible assets acquired ranges from two to fourteen years. The Company recorded $41.7 million and $4.1 million of goodwill in connection with its acquisitions for the year ended December 31, 2017 and the transition period ended December 31, 2016, respectively, reflecting the strategic fit and revenue and earnings growth potential of these businesses.
Revenue included in the consolidated statement of income for the year ended December 31, 2017 from the three businesses acquired in 2017 for the period subsequent to the closing of the transactions was approximately $17.9 million. Aggregate income from operations included in the consolidated statement of income for the year ended December 31, 2017 from the acquisitions for the period subsequent to the closing of each transaction was $0.8 million, inclusive of $0.9 million of acquisition-related expense. As these acquisitions were immaterial on an individual basis and in the aggregate, no unaudited pro forma financial information has been included in this report.

Dispositions

On May 22, 2015, the Company completed the sale of one of its Russian subsidiaries and recognized a loss of $0.4 million. On July 31, 2015, the Company completed the sale of its other subsidiary in Russia, as well as its subsidiary in Japan. For the year ended May 31, 2015, the Company recognized impairment charges of $2.1 million related to these sales. Aggregate charges

associated with the exit of these three foreign operations was approximately $2.5 million and is included within selling, general and administrative expenses on the consolidated income statement for the year ended May 31, 2015. In the aggregate, the assets and liabilities of these subsidiaries represent 0.6% and 0.3% of consolidated assets and liabilities, respectively, and are included in their natural classifications on the consolidated balance sheet as of May 31, 2015.

During the fourth quarter of 2017, the Company began the process of marketing one of its subsidiaries in the Products and Systems segment for sale. The Company determined that the classification of being held for sale has been met as of December 31, 2017. For the year ended December 31, 2017, this subsidiary represented 0.6% of consolidated revenues and loss from operations was $3.5 million, inclusive of a $2.6 million impairment charge for long-lived assets (See Note 9). In the aggregate, the assets and liabilities of this subsidiary represents 0.4% and 0.2% of consolidated assets and liabilities, respectively, and are included in their natural classifications on the consolidated balance sheet as of December 31, 2017.


Acquisition-Related expense
 
In the course of its acquisition activities, the Company incurs costs in connection with due diligence, such as professional fees, and other expenses. Additionally, the Company adjusts the fair value of acquisition-related contingent consideration liabilities on a quarterly basis. These amounts are recorded as acquisition-related (benefit) expense, net, on the consolidated statementsConsolidated Statements of incomeIncome (Loss) and were as follows for the yearyears ended December 31, 2017, the transition period ended December 31, 20162023, 2022 and fiscal 2016 and 2015:2021 (in thousands):
 For the year ended December 31,
 202320222021
Due diligence, professional fees and other transaction costs$$31 $
Adjustments to fair value of contingent consideration liabilities— 45 1,128 
Acquisition-related expense, net$$76 $1,133 

 For the year ended December 31, For the Transition Period ended December 31, For the year ended May 31,
 2017 2016 2016 2015
Due diligence, professional fees and other transaction costs$945
 $231
 $629
 $215
Adjustments to fair value of contingent consideration liabilities$(463) $265
 $(2,082) $(5,382)
Acquisition-related (benefit) expense, net$482
 $496
 $(1,453) $(5,167)
The Company’s contingent consideration liabilities are recorded on the balance sheet in accrued expenses and other liabilities.
8. Goodwill
 
The changes in the carrying amount of goodwill by segment is shown below:below (in thousands):
 North AmericaInternationalProducts and SystemsTotal
Balance at December 31, 2021$190,656 $14,783 $— $205,439 
Foreign currency translation(4,946)(858)— (5,804)
Balance at December 31, 2022$185,710 $13,925 $— $199,635 
Impairment charges— (13,799)— (13,799)
Foreign currency translation1,644 (126)— 1,518 
Balance at December 31, 2023$187,354 $— $— $187,354 

 Services International Products and Systems Total
Balance at May 31, 2016$119,683
 $36,340
 $13,197
 $169,220
Goodwill acquired during the year4,120
 
 
 4,120
Adjustments to preliminary purchase price allocations(19) 
 
 (19)
Foreign currency translation(392) (2,989) 
 (3,381)
Balance at December 31, 2016$123,392
 $33,351
 $13,197
 $169,940
Goodwill acquired during the year41,695
 
 
 41,695
Impairment charge
 
 (13,197) (13,197)
Adjustments to preliminary purchase price allocations(211) 
 
 (211)
Foreign currency translation925
 4,286
 
 5,211
Balance at December 31, 2017$165,801
 $37,637
 $
 $203,438
The Company reviews goodwill for impairment on a reporting unit basis on October 1 of each year and whenever events or changes in circumstances indicate the carrying value of goodwill may not be recoverable.


During the second quarter of 2017, there were pending Products and Systems contract bids which management assessed as having a reasonable chance of success. During the third quarter of 2017, these contract bids were not awarded2023, a triggering event was identified within the Company's reporting units within the International segment due to decreased gross margin in the Company.current period as a result of inflationary pressures and rising energy costs impacting the International reporting units' operations. As a result, of this missed opportunity, the annual forecasting process was accelerated, resulting in lower expected future operating profits and cash flows. As such, during the third quarter of 2017, there were indicators that the carrying amount of the goodwill for the Products and Systems reporting unit may not have been recoverable due to the decline in the projected future cash flows.

The Company performed an analysis to determine anyinterim quantitative goodwill impairment test.

64

In performing the interim quantitative goodwill as well as long-lived assets (see Note 9). Forimpairment test and consistent with prior practice, the goodwill analysis, we used income and market approaches to estimateCompany determined the fair value of each of the reporting unit, which required significant judgment in evaluationunits using a combination of economicthe income approach and industry trends,the market approach by assessing each of these valuation methodologies based upon availability and relevance of comparable Company data and determining the appropriate weighting.

Under the income approach, the fair value for each of the reporting units was determined based on the present value of estimated future cash flows, discounted at an appropriate risk-adjusted rate. The Company used internal forecasts, updated for recent events, to estimate future cash flows using a terminal value calculation, which incorporates historical and forecasted trends, including an estimate of long-term future growth rates, based on the Company’s most recent views of the long-term outlook for each reporting unit. The Company's internal forecasts include assumptions about future profitability, including the expected demand for the Company’s goods and services. Due to the inherent uncertainties involved in making estimates and assumptions, actual results may differ from those assumed in the forecasts. The Company derived the discount rates using a capital asset pricing model and other factors, and compared that fair valueanalyzing published rates for industries relevant to the carrying value,reporting units to estimate the cost of equity financing. The Company used discount rates that are commensurate with the risks and determined thatuncertainties inherent in the fair valuerespective businesses and in the Company's internally developed forecasts and which are updated for recent events. Increased interest rates in the current period increased the discount rate associated with the reporting units which contributed to an unfavorable decrease in the reporting units value.

The market approach valuation was derived from metrics of publicly traded companies or historically completed transactions of comparable businesses. The selection of comparable businesses was based on the markets in which the reporting units operate, considering risk profiles, size, geography, and diversity of products and services.

Based upon the results of the reporting unit was less thaninterim quantitative goodwill impairment test, the carrying value. The Company recorded an impairment charge of $13.2$13.8 million within the International reporting units. The impairment was calculated based on the difference between the estimated fair value and the carrying value of the reporting unit, which resultedunits and is included in anGoodwill impairment charges on the condensed consolidated statements of the entire amount of goodwillincome (loss) for the Products and Systems reporting unit.

The Company performed an impairment test of its remaining reporting units as of October 1, 2017 and concluded that there was no impairment. For the year ended December 31, 2017, the Company reviewed goodwill for impairment on a reporting unit basis. As of December 31, 2017, the Company did not identify any2023. Any significant adverse changes in circumstances that would indicatefuture periods to the remaining carrying value of goodwillCompany’s internal forecasts or the external market conditions, if any, could reasonably be expected to negatively affect its key assumptions and may not be recoverable.

The Company's cumulativeresult in future goodwill impairment for the periods ended December 31, 2017 was $23.1 million, ofcharges which $13.2 million related to the Products and Systems segment and $9.9 million related to the International segment. could be material.

The Company's cumulative goodwill impairment as of December 31, 20162023 was $9.9$114.0 million, all of which is within its$57.2 million related to the North America segment, $43.6 million related to the International segment and $13.2 million related to the Products and Systems segment.



9. Intangible Assets
 
The gross carrying amount and accumulated amortization of intangible assets were as follows:follows (in thousands):

  December 31,
  20232022
 Useful Life
(Years)
Gross
Amount
Accumulated
Amortization
Net
Carrying
Amount
Gross
Amount
Accumulated
Amortization
Net
Carrying
Amount
Customer relationships5-18$110,780 $(90,506)$20,274 $109,683 $(84,130)$25,553 
Software/Technology3-1555,053 (32,230)22,823 51,028 (28,669)22,359 
Covenants not to compete2-512,536 (12,488)48 12,488 (12,416)72 
Other2-1210,466 (9,617)849 10,389 (9,358)1,031 
Total $188,835 $(144,841)$43,994 $183,588 $(134,573)$49,015 
   December 31, December 31,
   2017 2016
 
Useful Life
(Years)
 Gross
Amount
 Accumulated
Amortization
 Impairment Net
Carrying
Amount
 
Gross
Amount
 
Accumulated
Amortization
 
Net
Carrying
Amount
Customer relationships5-14 $113,299
 $(58,107) $(170) $55,022
 $81,559
 $(50,417) $31,142
Software/Technology3-15 19,523
 (14,133) (2,411) 2,979
 18,128
 (12,577) 5,551
Covenants not to compete2-5 12,510
 (10,438) 
 2,072
 11,143
 (9,647) 1,496
Other2-5 10,109
 (6,411) (32) 3,666
 7,266
 (5,448) 1,818
Total  $155,441
 $(89,089) $(2,613) $63,739
 $118,096
 $(78,089) $40,007


Amortization expense for the yearyears ended December 31, 2017, the transition period ended December 31, 20162023, 2022 and the years ended May 31, 2016 and 20152021, was approximately $9.0$8.5 million, $5.2 million, $9.6$9.1 million, and $11.1$9.7 million, respectively, including amortization of software/technology for these periods of $0.7$2.9 million, $0.5 million, $1.0$2.9 million, and $0.9$3.0 million, respectively.


As described in Note 8, the Company performed an analysis to determine whether there was any impairment
65

assets for the Products and Systems reporting unit. We used income and market approaches to estimate the fair value of the
long-lived assets, which requires significant judgment in evaluation of the useful lives of the assets, economic and industry
trends, estimated future cash flows, discount rates, and other factors. The result of the analysis was an impairment of $2.4 million to software/technology, $0.2 million to customer relationships and less than $0.1 million to other intangibles, which are
included in the impairment charges line on the consolidated statements of income for the year ended December 31, 2017.
Amortization expense in each of the five years and thereafter subsequent to December 31, 20172023 related to the Company’s intangible assets is expected to be as follows:follows (in thousands):
 Expected
Amortization
Expense
2024$9,054 
20256,829 
20266,120 
20274,752 
20284,620 
Thereafter12,619 
Total$43,994 


 
Expected
Amortization
Expense
  
2018$10,117
20198,952
20207,483
20216,411
20226,076
Thereafter24,700
Total$63,739


10. Accrued Expenses and Other Current Liabilities
 
Accrued expenses and other current liabilities consist of the following:following (in thousands):
 December 31,
 20232022
Accrued salaries, wages and related employee benefits$27,372 $26,684 
Contingent consideration— 937 
Accrued workers' compensation and health benefits4,385 3,660 
Deferred revenue7,136 7,521 
Right-of-use liability - Operating10,686 10,376 
Pension accrual2,458 2,519 
Other accrued expenses32,294 26,147 
Total accrued expenses and other current liabilities$84,331 $77,844 
 
 December 31,
 2017 2016
Accrued salaries, wages and related employee benefits$27,185
 $23,442
Contingent consideration3,430
 1,826
Accrued workers' compensation and health benefits5,181
 6,351
Deferred revenues6,338
 3,743
Legal settlement accrual1,600
 6,320
Other accrued expenses21,827
 17,015
Total accrued expenses and other current liabilities$65,561
 $58,697
11. Long-Term Debt

Long-term debt consistsconsisted of the following:following (in thousands):
 December 31,
 2017 2016
Senior credit facility$156,948
 $82,776
Notes payable228
 320
Other9,702
 4,200
Total debt166,878
 87,296
Less: Current portion(2,358) (1,379)
Long-term debt, net of current portion$164,520
 $85,917
 December 31,
 20232022
Senior credit facility$71,150 $65,250 
Senior secured term loan, net of unamortized debt issuance costs of $0.4 million and $0.5 million115,253 121,399 
Other3,996 4,602 
Total debt190,399 191,251 
Less: Current portion(8,900)(7,425)
Long-term debt, net of current portion$181,499 $183,826 
 
Senior Credit Facility
 
Prior to entering into the New Credit Agreement (defined and described below), the Company had a credit agreement with its banking group (the "Credit Agreement") which provided the Company with a $150 million revolving credit facility and a $100 million term loan. The Credit Agreement was most recently amended on May 19, 2021 and had a maturity date of December 12, 2023.
On December 8, 2017,August 1, 2022, the Company entered into a Fourth Amended and Restatednew credit agreement (the “New Credit Agreement”) which replaced the prior Credit Agreement (“Credit Agreement”).and provides the Company with a $190 million, 5-year committed revolving credit facility and a $125 million term loan with a balance of $115.3 million as of December 31, 2023. The New Credit Agreement increasedpermits the Company’s revolving line of credit from $175.0 million to $250.0 million and provides that under certain circumstances the line of credit can be increased to $300.0 million. The Company may continue to borrow up to $30.0$100 million in non-U.S. Dollarnon-US dollar currencies and to use up to $10.0$20 million of the credit limit for the issuance of letters of credit. TheBoth the revolving line of credit and the term loan under the New Credit Agreement have a maturity date of theJuly 30, 2027.
66


The New Credit Agreement is December 7, 2022. At December 31, 2017,has the Company had borrowings of $156.9 millionfollowing key terms, conditions and letters offinancial covenants:

Borrowings bear interest at Secured Overnight Financing Rate ("SOFR") plus a credit of $4.9 million were outstanding under the Credit Agreement. The Company has capitalized costs of $0.8 million associated with debt modifications.
Loansspread adjustment and applicable SOFR margin ranging from 1.25% to 2.75%, based upon our Total Consolidated Debt Leverage Ratio (defined below); under the Credit Agreement, bear interest atthe margin was based upon the LIBOR plus an applicable LIBOR margin ranging from 1%margin.
Total Consolidated Debt Leverage Ratio means the ratio of (a) Total Consolidated Debt to 2%, or a base rate less a margin of 1.25% to 0.375%, at(b) EBITDA (as defined in the optionNew Credit Agreement) for the trailing four consecutive fiscal quarters.
Total Consolidated Debt means all indebtedness (including subordinated debt) of the Company based upon the Company’s Funded Debt Leverage Ratio. Funded Debt Leverage Ratio is generally the ratio of (1) all outstanding indebtedness for borrowed money and other interest-on a consolidated basis.


bearing indebtedness as of the date of determination to (2) EBITDA (which is (a) net income, less (b) income (or plus loss) from discontinued operations and extraordinary items, plus (c) income tax expenses, plus (d) interest expense, plus (e) depreciation, depletion, and amortization (including non-cash loss on retirement of assets), plus (f) stock compensation expense, less (g) cash expense related to stock compensation, plus (h) certain amounts of EBITDA of acquired business for the prior twelve months, plus (i) certain expenses related to the closing of the Credit Agreement, plus (j) non-cash expenses which do not (in the current or any future period) represent a cash item (excluding non-cash gains which increase net income), plus (k) non-recurring charges (not to exceed $5 million in the four consecutive quarters immediately preceding the date of determination) for items such as severance, lease termination charges, asset write-offs and litigation settlements paid during the period, all determined for the period of four consecutive fiscal quarters immediately preceding the date of determination. The Company has the benefit of the lowest SOFR margin if its FundedTotal Consolidated Debt Leverage Ratio is equal to or less than 0.51.25 to 1,1.0, and the margin increases as the ratio increases, to the maximum margin if the ratio is greater than 2.753.75 to 1.1.0. The Company will also bear additional costs for market disruption, regulatory changes effecting the lenders’ funding costs, and default pricing of an additional 2% interest rate margin on any amounts not paid when due. Amounts borrowed under theNew Credit Agreement areis secured by liens on substantially all of the assets of the Company and certain of its U.S subsidiaries and is guaranteed by some of ourthose U.S subsidiaries.

The Credit Agreement contains financial covenants requiring that the Company has to maintain a FundedTotal Consolidated Debt Leverage Ratio of no greatermore than 3.54.0 to 11.0 at the end of each quarter through June 30, 2023 and an Intereststepping down to a maximum permitted ratio of no more than 3.75 to 1.0 for the remainder of the term.

As of December 31, 2023, the Fixed Charge Coverage Ratio was modified from a ratio of at least 3.01.25 to 1. Interest Coverage Ratio means the1.0 to a ratio as of any date of determination, of (a) EBITDA1.1 to 1.0 for the 12 month period immediately preceding the date of determination, to (b) all interest, premium payments, debt discount, fees, charges and related expensesduration of the Company and its subsidiaries in connection with borrowed money (including capitalized interest) or in connection with the deferred purchase price of assets, in each case to the extent treated as interest in accordance with GAAP, paid during the 12 month period immediately preceding the date of determination. The Company can elect to increase the Funded Debt Leverage Ratio to 3.75 to 1 temporarily for four fiscal quarters immediately following the fiscal quarter in which the Company acquires another business. The Company can make this election twice during the term of the Credit Agreement.

TheNew Credit Agreement, alsoas defined in the New Credit Agreement. Refer to Note 21 - Subsequent Events for further information.

The New Credit Agreement limits the Company’s ability to, among other things, create liens, make investments, incur more indebtedness, merge or consolidate, make dispositions of property, pay dividends, and make distributions to stockholders or repurchase our stock, enter into a new line of business, enter into transactions with affiliates and enter into burdensome agreements.

The New Credit Agreement does not limit the Company’s ability to acquire other businesses or companies except that the acquired business or company must be in the Company's line of business, the Company must be in compliance with the financial covenants on a pro forma basis after taking into account the acquisition, and if the acquiredCompany must provide written notice at least five business isdays prior to the date of an acquisition of $10 million or more.

Quarterly payments on the term loan of $1.56 million through June 30, 2024, then increasing to $2.34 million through June 30, 2025, and to $3.12 million for each quarterly payment thereafter through maturity.

The New Credit Agreement was accounted for as a separate subsidiary,modification, and the Company expensed $0.8 million in certain circumstancesunamortized capitalized debt issuance costs and fees during the lenders will receivethree months ended September 30, 2022, which was included in selling, general and administrative expenses on the benefitConsolidated Statements of a guarantyIncome (Loss). The Company incurred $1.6 million in financing costs for the New Credit Agreement, of which $0.2 million of third party costs were expensed and included in selling, general and administrative expenses on the subsidiary and liens on its assets and a pledgeConsolidated Statements of its stock.Income (Loss).
 
As of December 31, 2017,2023, the Company had borrowings of $186.4 million and a total of $2.9 million of letters of credit outstanding under the New Credit Agreement. The Company has capitalized costs associated with debt modifications of $1.2 million as of December 31, 2023, which is included in Other assets on the Consolidated Balance Sheet and will be amortized into interest expense over the remaining term of the Credit Agreement through July 30, 2027.

As of December 31, 2023, the Company was in compliance with the terms of the New Credit Agreement. The Company continuously monitors compliance with the covenants contained in the New Credit Agreement. The Company believes that it is probable that the Company will be able to comply with the financial covenants in the New Credit Agreement and has undertakenthat sufficient credit remains available under the New Credit Agreement to continuously monitor compliancemeet the Company's liquidity needs. However, such matters cannot be predicted with these covenants.certainty.

Notes Payable and Other Debt
 
In connection with certain of its acquisitions, the Company issued subordinated notes payable to the sellers. The maturity of the notes that remain outstanding are three years from the date of acquisition and bear interest at the prime rate for the Bank of Canada, currently 3.2% as of December 31, 2017. Interest expense is recorded in the consolidated statements of income.

The Company's other debt includes local bank financing provided at the local subsidiary levelslevel used to support working capital requirements and fund capital expenditures. At December 31, 2017,2023, there was an aggregate of approximately $9.7$4.0 million
67

outstanding, payable at various times from 2018 to 2029.through 2030. Monthly payments rangerange from $1$1 thousand to $18 thousand. Interest$19 thousand and interest rates range from 0.6%0.4% to 6.2%3.5%.

The Company has evaluated current market conditions and borrower credit quality and has determined that the carrying value of its long-term debt approximates fair value. The fair value of the Company’s notes payable and capital lease obligations approximates their carrying amounts based on anticipated interest rates which management believes would currently be available to the Company for similar issues of debt.


Scheduled principal payments due under all borrowing agreements in each of the five years and thereafter subsequent to December 31, 20172023 are as follows:follows (in thousands):
2024$9,208 
202511,968 
202612,875 
2027155,524 
2028824 
Thereafter— 
Total$190,399 
 

2018$2,358
20191,664
20201,243
2021892
2022157,728
Thereafter2,993
Total$166,878
12.        Fair Value Measurements
 
The Company performs fair value measurements in accordance with the guidance provided by ASC 820, Fair Value Measurements and Disclosures.Disclosures. ASC 820 defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. It also establishes a three levelthree-level hierarchy that prioritizes the inputs used to measure fair value. The three levels of the hierarchy are defined as follows:
 
Level 1 — Inputs are unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date.
 
Level 2 — Observable inputs other than quoted prices included in Level 1, including quoted prices for similar assets or liabilities in active markets, quoted prices for identical assets or liabilities in inactive markets, inputs other than quoted prices that are observable for the asset or liability and inputs derived principally from or corroborated by observable market data.


Level 3 — Unobservable inputs reflecting the Company’s own assumptions about inputs that market participants would use in pricing the asset or liability based on the best information available.
 
Financial instruments measured at fair value on a recurring basis

The fair value of contingent consideration liabilities was estimated using a discounted cash flow technique with significant
inputs that are not observable in the market and thus represents a Level 3 fair value measurement as defined in ASC 820. The
significant inputs in the Level 3 measurement not supported by market activity include the probability assessments of expected
future cash flows related to the acquisitions, appropriately discounted considering the uncertainties associated with the
obligation, and as calculated in accordance with the terms of the applicable acquisition agreements.


The following table represents the changes in the fair value of Level 3 contingent consideration:consideration (in thousands):
December 31,
20232022
Balance at the beginning of the period:$937 $1,830 
Acquisitions— — 
Payments(937)(938)
Accretion of liability— — 
Revaluation— 45 
Foreign currency translation— — 
Balance at the end of the period:$— $937 

Balance at May 31, 2016 $2,075
Acquisitions 1,630
Payments (795)
Accretion of liability 136
Revaluation 126
Foreign currency translation (78)
Balance at December 31, 2016 $3,094
Acquisitions 3,407
Payments (560)
Accretion of liability 272
Revaluation (735)
Foreign currency translation 30
Balance at December 31, 2017 $5,508


Financial instruments not measured at fair value on a recurring basis

The Company has evaluated current market conditions and borrower credit quality and has determined that the carrying value
of its long-term debt approximates fair value. The fair value of the Company’s notes payable and capitalfinance lease obligations
68

approximates their carrying amounts based on anticipated interest rates which management believes would currently be
available to the Company for similar issuances of debt.


13. Share-Based Compensation
 
The Company hasgrants share-based incentive awards outstanding to its eligible employees and Directorsnon-employee directors under three employee stock ownershiptwo equity incentive plans: (i) the 2007 Stock Option Plan (the 2007 Plan), (ii) the 2009 Long-Term Incentive Plan (the 2009 Plan)"2009 Plan") and (iii)(ii) the 2016 Long-Term Incentive Plan.Plan (the "2016 Plan"). No further awards may behave been granted under either the 2007 Plan or the 2009 Plan although awardssince the 2016 Plan was approved by stockholders in 2016, and the remaining option award granted under the 2007 Plan and 2009 Plan remain outstanding in accordance with their terms.expired during the three months ended March 31, 2022. Awards granted under the 2016 Plan may be in the form of stock options, restricted stock units, restricted stock and other forms of share-based incentives, including performanceperformance-based restricted stock units, stock appreciation rights and deferred stock rights. TheAt the annual stockholders meeting on May 23, 2022, the Company’s stockholders approved an amendment to increase the total number of shares that may be issued under the 2016 Plan allowsby 1.2 million, for a total of 4.9 million shares that are authorized for issuance under the grant of awards of up to approximately 1,700,000 shares of common stock,2016 plan, of which 1,438,000approximately 1,400,000 shares were available for future grants as of December 31, 2017. As of December 31, 2017, there was an aggregate of approximately 2,130,000 stock options outstanding and approximately 724,000 unvested restricted stock units outstanding under the 2009 Plan and the 2007 Plan.2023.

Stock Options
 
ForOn October 11, 2023, Mr. Stamatakis was granted an award of stock options to purchase 250,000 shares of common stock of the Company, with an exercise price of $5.36, the closing price of the Company's common stock as quoted on the New York Stock Exchange on the grant date (the "Options"). The Options were granted as an inducement for Mr. Stamatakis to accept the position of Interim President and CEO of Mistras and were therefore granted outside the 2016 Plan, as permitted by NYSE Rules. The Options can be exercised any time after the grant date until its expiration date, which is the earlier of 10 years from the grant date or one year following the date Mr. Stamatakis is no longer serving as an officer, director or in any other capacity of the Company. During the three months ended December 31, 2017 and2023, the transition periodCompany recorded $0.8 million share-based compensation expenses related to the Options.

For each of the years ended December 31, 2016,2022 and 2021, the Company did not haverecognize any share-based compensation expense related to stock option awards. For each ofawards, as the fiscal years ended May 31, 2016 and 2015, the Company recognized share-based compensation expense related toone outstanding stock option awards of less than $0.1 million.award was already fully vested. No stock options were granted during the year ended December 31, 2017, the transition period ended December 31, 2016 or the years ended May 31, 2016 and 2015. As of December 31, 2017, no unrecognized compensation costs remained related to the stock option awards. Cash proceeds from, and the intrinsic value ofIn addition, there were no stock options exercised during the yearyears ended December 31, 2017, the transition period ended December 31, 20162023, 2022 and the years ended May 31, 2016 and 2015 were as follows:2021.
  
 For the year ended December 31, For the Transition Period ended December 31, For the year ended May 31,
 2017 2016 2016 2015
Cash proceeds from options exercised$275
 $604
 $543
 $750
Aggregate intrinsic value of options exercised580
 993
 658
 563
AThe following table sets forth a summary of the stock option activity, weighted averageweighted-average exercise prices and options outstanding and exercisable as of December 31, 2017, the transition period ended December 31, 20162023, 2022 and the years ended May 31, 2016 and 2015 is2021 as follows (in thousands, except per share amounts)amounts and years):

For the year ended December 31, For the Transition Period ended December 31, For the year ended May 31, For the years ended December 31,
2017 2016 2016 2015  202320222021
Common
Stock
Options
 Weighted
Average
Exercise
Price
 
Common
Stock
Options
 
Weighted
Average
Exercise
Price
 
Common
Stock
Options
 
Weighted
Average
Exercise
Price
 
Common
Stock
Options
 
Weighted
Average
Exercise
Price
  Common
Stock
Options
Weighted
Average
Exercise
Price
Common Stock OptionsWeighted Average Exercise PriceCommon
Stock
Options
Weighted
Average
Exercise
Price
Outstanding at beginning of year:2,167
 $13.33
 2,232
 $13.21
 2,287
 $13.13
 2,352
 $13.09
 
Granted
 $
 
 $
 
 $
 
 $
 
Exercised(37) $7.39
 (65) $9.27
 (55) $9.87
 (65) $11.54
 
Expired or forfeited
 $
 
 $
 
 $
 
 $
 
Outstanding at end of year:2,130
 $13.43
 2,167
 $13.33
 2,232
 $13.21
 2,287
 $13.13
 
 

Stock Issuances to Non-Employee Directors

69

Table of Contents
    For the year ended December 31, 2017
    Options Outstanding Options Exercisable
Range of Exercise Prices 
Total
Options
Outstanding
 
Weighted
Average
Remaining
Life (Years)
 
Weighted
Average
Exercise
Price
 
Number
Exercisable
 
Weighted
Average
Exercise
Price
$10.00-$11.54 35
 1.1 $10.54
 35
 $10.54
$13.46-$22.35 2,095
 1.7 $13.48
 2,095
 $13.48
  2,130
    
 2,130
  
           
Aggregate Intrinsic Value $21,374
    
 $21,374
  
As part of its compensation program for non-employee directors, the Company makes semi-annual issuances of fully-vested common stock to its non-employee directors. A summary of the fully-vested common stock the Company issued to its non-employee directors, in connection with its non-employee director compensation, is as follows (in thousands):
 For the year ended December 31,
 202320222021
Awards issued133 70 51 
Grant date fair value of awards issued$750 $450 $525 


Restricted Stock Unit Awards
 
Restricted Stock Units generally vest ratably on each of the first four anniversary dates of issuance. The Company recognized approximately $4.5$4.9 million, $3.7 million and $3.5 million of share-based compensation for the yearyears ended December 31, 2017, $2.6 million of share-based compensation for the transition period ended December 31, 2016, $4.4 million of share-based compensation in fiscal 20162023, 2022 and $4.7 million of share-based compensation in fiscal 20152021, respectively, related to restricted stock unit awards. As of December 31, 2017,2023, there werewas approximately $8.2$6.9 million of unrecognized compensation costs, net of estimated forfeitures, related to restricted stock unit awards, which are expected to be recognized over a remaining weighted average period of 2.32.5 years. Approximately 185,000 restricted stock units vested in the year ended December 31, 2017, of which the fair value of these units was $3.4 million. Approximately 207,000 restricted stock units vested in the transition period ended December 31, 2016, of which the fair value of these units was $5.1 million. Approximately 223,000 restricted stock units vested in fiscal 2016 and 232,000 restricted stock units vested in fiscal 2015. The fair value of these units was $3.5 million and $5.2 million, respectively. Upon vesting, restricted stock units are generally net share-settled to cover the required minimum withholding tax and the remaining amount is converted into an equivalent number of shares of common stock.


DuringA summary of the year ended December 31, 2017,vesting activity of restricted stock unit awards, with the Company granted approximately 21,000 shares of fully-vested common stock to its five non-employee directors, in connection with its non-employee director compensation plan, which shares had a grant daterespective fair value of approximately $0.4 million. During the transition period ended December 31, 2016,awards, is as follows (in thousands):
 For the year ended December 31,
 202320222021
Awards issued683 401 317 
Grand date fair value of awards issued$4,269 $2,524 $3,434 

A summary of the Company granted approximately 10,000 shares of fully-vested common stock to its five non-employee directors, in connection with its non-employee director compensation plan, which shares had a grant date fair value of approximately $0.3 million. During the years ended May 31, 2016Company's outstanding, non-vested restricted share units is as follows (in thousands, except per share amounts and 2015, the Company granted approximately 28,000 and 21,000 shares, respectively, of fully-vested common stock to its five non-employee directors, in connection with its non-employee director compensation plan. These shares had a grant date fair value of approximately $0.5 million and $0.4 million, respectively, which is included in the share-based compensation expense recorded during the years ended May 31, 2016 and 2015.years):
For the year ended December 31, For the transition period ended December 31, For the year ended May 31,
2017 2016 2016 2015
Units Weighted
Average
Grant-Date
Fair Value
 Units Weighted
Average
Grant-Date
Fair Value
 Units 
Weighted
Average
Grant-Date
Fair Value
 Units 
Weighted
Average
Grant-Date
Fair Value
For the year ended December 31,For the year ended December 31,
2023202320222021
UnitsUnitsWeighted
Average
Grant-Date
Fair Value
UnitsWeighted
Average
Grant-Date
Fair Value
UnitsWeighted
Average
Grant-Date
Fair Value
Outstanding at beginning of period:569
 $20.81
 575
 $18.85
 564
 $20.47
 628
 $19.37
Granted183
 $21.26
 219
 $24.48
 264
 $16.73
 192
 $21.87
Released(185) $20.49
 (207) $19.40
 (223) $20.40
 (232) $18.17
Forfeited(35) $21.45
 (18) $19.55
 (30) $19.26
 (24) $20.57
Outstanding at end of period:532
 $21.05
 569
 $20.81
 575
 $18.85
 564
 $20.47
 
Performance Restricted Stock Units


The Company maintains Performance Restricted Stock Units (PRSUs)("PRSUs") that have been granted to select executives and senior officers whose ultimate payout ispayouts may vary between zero and 200% of the target award, based on the Company’s performance over a one-year period based on threespecific metrics as defined: (1) Operating Income, (2) Adjusted EBITDAS and (3) Revenue. There is a discretionary portion of the PRSUs based on individual performance, at the discretion ofapproved by the Compensation Committee (Discretionary PRSUs)of the Board of Directors of the Company.

For 2022, the Compensation Committee of the Board of Directors utilized the same performance metrics for the Company's PRSUs awarded in 2022 as it utilized for the 2021 PRSUs. The three metrics were:
1.Free Cash Flow defined asnet cash provided by operating activities less purchases of property, plant, equipment and intangible assets and is subject to adjustments approved by the Compensation Committee.
2.Adjusted EBITDA defined as net income attributable to the Company plus: interest expense, provision for income taxes, depreciation and amortization, share-based compensation expense and certain acquisition related costs
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(including transaction due diligence costs and adjustments to the fair value of contingent consideration), foreign exchange (gain) loss and, if applicable, certain special items which are noted.
3.Total Shareholder Return ("TSR") measures the total return to shareholders of the Company during 2021 versus the total return to the shareholders of a predefined peer group of companies that provide inspection, testing, certification or similar industrial services. The return will be measured by the year over year percent change in share price. The share prices used to calculate the return are the average share price during the 20-trading day period ending on the initial measurement date (the last 20 trading days of 2021), compared to the average share price during the 20-trading day period ending on the final measurement date (the last 20 trading days of 2022). Any cash dividends or distributions paid in 2022 were added to calculate the return to shareholders during the year. TSR is considered a market condition for which the fair value of PRSUs with this condition is determined using a Monte Carlo valuation model. Key assumptions in the Monte Carlo valuation model included:
a.Expected Volatility. Expected volatility of the Company’s common stock at the date of grant was estimated based on a historical average volatility rate for the approximate 1-year performance period.
b.Dividend Yield. The dividend yield assumption was based on historical and Discretionaryanticipated dividend payouts (assumed at zero).

c.Risk-Free Interest Rate. The risk-free interest rate assumption was based on observed interest rates consistent with the approximate 1-year performance measurement period.

For 2023, the Compensation Committee of the Board of Directors used different performance metrics for PRSUs approved in that year. The three metrics are:
1.Free Cash Flow defined asnet cash provided by operating activities less purchases of property, plant, equipment and intangible assets and is subject to adjustments approved by the Compensation Committee.
2.Adjusted EBITDA defined as net income attributable to the Company plus: interest expense, provision for income taxes, depreciation and amortization, share-based compensation expense and certain acquisition related costs (including transaction due diligence costs and adjustments to the fair value of contingent consideration), foreign exchange (gain) loss and, if applicable, certain special items which are noted.
3.Revenue

PRSUs are equity-classified and compensation costs related to PRSUs with performance conditions are initially measured using the fair value of the underlying stock at the date of grant. Compensation costs related to the PRSUs with performance conditions are subsequently adjusted for changes in the expected outcomes of the performance conditions. Compensation cost related to the PRSUs with a market condition is not reversed if the market condition is not achieved, provided the employee requisite service has been rendered. Earned PRSUs generally vest ratably on each of the first four anniversary dates uponfollowing completion of the performance period, for a total requisite service period of up to five years and have no dividend rights.

PRSUs are equity-classified and compensation costs are initially measured using the fair value of the underlying stock at the date of grant, assuming that the target performance conditions will be achieved. Cumulative compensation costs related to the PRSUs are subsequently adjusted for changes in the expected outcomes of the performance conditions.

Discretionary PRSUs are liability-classified and adjusted to fair value (with a corresponding adjustment to compensation expense) based upon the targeted number of shares to be awarded and the fair value of the underlying stock each reporting period until approved by the Compensation Committee, at which point they are classified as equity.


A summary of the Company's Performance Restricted Stock UnitPRSU activity is presented below:as follows (in thousands, except per share amounts and years):

 For the year ended December 31,
202320222021
 UnitsWeighted
Average
Grant-Date
Fair Value
UnitsWeighted
Average
Grant-Date
Fair Value
UnitsWeighted
Average
Grant-Date
Fair Value
Outstanding at beginning of period:371 $9.96 388 $10.07 333 $8.84 
Granted282 $8.50 341 $6.55 189 $12.59 
Performance condition adjustments, net(305)$8.34 (285)$7.71 (56)$9.27 
Released(204)$6.59 (73)$5.17 (78)$8.15 
Forfeited(84)$6.95 — $— — $— 
Outstanding at end of period:60 $9.33 371 $9.96 388 $10.07 
 For the year ended December 31, 2017 For the Transition Period ended December 31, 2016
 Units Weighted
Average
Grant-Date
Fair Value
 Units Weighted
Average
Grant-Date
Fair Value
Outstanding at beginning of period:290
 $16.01
 328
 $17.02
Granted128
 $20.42
 105
 $24.90
Performance condition adjustments, net(68) $20.55
 (54) $24.49
Released(72) $15.82
 (89) $24.50
Forfeited
 $
 
 $
Outstanding at end of period:278
 $17.00
 290
 $16.01

In fiscal 2014, the company granted one-year, two-year and three-year PRSUs to its executive and certain other senior officers. These units had requisite service periods of three years and have no dividend rights. The actual payout of these units, before the fiscal 2016 modification as described below, was based on the Company’s performance over one, two and three-year periods (based on pre-established targets) and a market condition modifier based on total shareholder return (TSR) compared to an industry peer group. The one-year and two-year performance conditions of the fiscal 2014 awards were evaluated before modification of the awards and not achieved. The one-year and two-year market conditions of the fiscal 2014 awards were evaluated before modification of the awards and achieved. Compensation costs related to the TSR conditions for the one-year and two-year 2014 awards described above were fixed at the measurement date, and not subsequently adjusted. The one-year and two-year awards related to market conditions were paid at 170% and 105%, respectively, of target, upon vesting during the transition period ended December 31, 2016. The three-year performance and market condition awards were surrendered as part of the fiscal 2016 modification described below.
In fiscal 2015, the company granted PRSUs to its executive and certain other senior officers. These units have requisite service periods of three years and have no dividend rights. The actual payout of these units, before the fiscal 2016 modification as described below, was based on the Company’s performance over the three-year period (based on pre-established targets) and a market condition modifier based on (TSR) compared to an industry peer group. The 2015 awards were surrendered as part of the fiscal 2016 modification described below.

In the first quarter of fiscal 2016, the Company modified its equity compensation program and granted 154,000 PRSUs to its executive and certain other senior officers. As a condition for receiving any awards under the revised fiscal 2016 plan, the executive and senior officers surrendered and released all rights to receive any shares under the three-year 2014 awards and three-year 2015 awards with a performance or market condition. The Company has accounted for the fiscal 2016 awards as modifications in accordance with ASC 718, Compensation - Stock Compensation. These units have requisite service periods of five years and have no dividend rights.
The fiscal 2016 PRSUs increased by approximately 104,000 units to a total of 258,000 units, which represents Company performance above target as well as individual performance, and was approved by the Compensation Committee in August 2016.

For the transition period ended December 31, 2016, 105,000 PRSUs were granted. There was a 73,000 unit reduction to these awards, which represents Company performance below target, during the transition period ended December 31, 2016. As of December 31, 2016, the aggregate liability related to 12,000 outstanding Discretionary PRSUs was less than $0.1 million and is classified within accrued expenses and other liabilities on the consolidated balance sheet. The Compensation Committee approved these PSUs in the first quarter of 2017, which reduced them by 3,000 units. The discretionary portion of these awards were reclassed from a liability to equity on the consolidated balance sheet upon Compensation Committee approval.


For the year ended December 31, 2017, 128,0002023, 282,000 PRSUs were granted. There was a 65,000305,000 net unit reduction to these awards, which represents Company performance below target, during the year ended December 31, 2017. As of2023.

For the year ended December 31, 2017,2022, 341,000 PRSUs were granted. There was a 285,000 net unit reduction to these awards, which represents Company performance below target, during the aggregate liability relatedyear ended December 31, 2022.

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For the year ended December 31, 2021, 189,000 PRSUs were granted. There was a 56,000 unit reduction to 13,000 outstanding Discretionary PRSUs was less than $0.1 million and is classified within accrued expenses and other liabilities onthese awards, which represents Company performance against target, during the consolidated balance sheet.year ended December 31, 2021.


Compensation expense related to all PRSUs described above was $1.7$0.7 million, $1.7 million, $1.6$1.2 million, and $1.5$1.4 million for the yearyears ended December 31, 2017, the transition period ended December 31, 20162023, 2022 and the years ended May 31, 2016 and 2015,2021, respectively. At December 31, 2017,2023, there was $2.3$0.2 million of total unrecognized compensation costs related to approximately 278,000 nonvested60,000 unvested performance restricted stock units. These costs are expected to be recognized over a weighted-average period of approximately 2.01.5 years.

For the yearyears ended December 31, 2017, the transition period ended December 31, 20162023, 2022 and the fiscal years ended May 31, 2016 and 2015,2021, the income tax benefit recognized on all share based compensation arrangements referenced above was approximately $2.2$0.8 million, $1.6 million, $2.2 million and $2.3$1.4 million, respectively.


14. Income Taxes
 
Income (loss) before provision (benefit) for income taxes is as follows:follows (in thousands):
 For the year ended December 31,
 202320222021
Income (loss) before provision (benefit) for income taxes from:
U.S. operations$(6,900)$439 $1,527 
Foreign operations(11,765)8,855 5,761 
Income (loss) before provision (benefit) for income taxes$(18,665)$9,294 $7,288 
 
 For the year ended December 31, For the Transition Period ended December 31, For the year ended May 31,
 2017 2016 2016 2015
(Loss) income before provision for income taxes from:     
  
U.S. operations$(7,303) $5,116
 $27,772
 $26,893
Foreign operations7,077
 10,365
 10,643
 (1,162)
(Loss) Earnings before income taxes$(226) $15,481
 $38,415
 $25,731

The provision (benefit) for income taxes consists of the following:following (in thousands):
 For the year ended December 31, For the Transition Period ended December 31, For the year ended May 31,
 2017 2016 2016 2015
Current     
  
Federal$3,558
 $1,990
 $9,156
 $8,489
States and local39
 483
 1,537
 1,177
Foreign3,131
 3,569
 3,672
 1,493
Reserve for uncertain tax positions71
 (39) (529) (48)
Total current6,799
 6,003
 13,836
 11,111
Deferred     
  
Federal(3,857) 6
 82
 (145)
States and local(810) (28) (51) (126)
Foreign(437) (514) (557) (2,416)
Total deferred(5,104) (536) (526) (2,687)
Net change in valuation allowance247
 403
 455
 1,316
Net deferred(4,857) (133) (71) (1,371)
Provision for income taxes$1,942
 $5,870
 $13,765
 $9,740
 For the year ended December 31,
 202320222021
Current
Federal$1,372 $(644)$(182)
States and local705 464 246 
Foreign2,063 3,251 3,641 
Reserve for uncertain tax positions16 136 (186)
Total current provision (benefit)$4,156 $3,207 $3,519 
Deferred
Federal$(2,005)$(435)$(309)
States and local(122)242 (138)
Foreign(1,439)(1,614)(1,884)
Reserve for uncertain tax positions— — 155 
Total deferred benefit(3,566)(1,807)(2,176)
Net change in valuation allowance(1,810)1,320 2,052 
Net deferred benefit(5,376)(487)(124)
Total provision (benefit) for income taxes$(1,220)$2,720 $3,395 
 
The provision (benefit) for income taxes differs from the amount computed by applying the statutory federal tax rate to income tax as follows:
follows (in thousands):
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For the year ended December 31, For the Transition period ended December 31, For the years ended December 31,
2017 2016 202320222021
Federal tax at statutory rate$(79) 35.0 % $5,418
 35.0 %Federal tax at statutory rate$(3,920)21.0 21.0 %$1,952 21.0 21.0 %$1,527 21.0 21.0 %
State taxes, net of federal benefit(502) 221.6 % 296
 1.9 %State taxes, net of federal benefit611 (3.3)(3.3)%622 6.7 6.7 %75 1.0 1.0 %
Foreign tax217
 (95.8)% (573) (3.7)%Foreign tax274 (1.5)(1.5)%218 2.3 2.3 %380 5.2 5.2 %
Contingent consideration(63) 27.7 % (4)  %
Goodwill impairmentGoodwill impairment2,901 (15.5)%— — %— — %
Nondeductible compensationNondeductible compensation716 (3.8)%— — %119 1.6 %
US taxation of foreign earningsUS taxation of foreign earnings98 (0.5)%100 1.1 %(1,041)(14.3)%
Permanent differences377
 (166.4)% 373
 2.4 %Permanent differences485 (2.6)(2.6)%363 3.9 3.9 %373 5.1 5.1 %
Transition tax, net of foreign tax credits3,942
 (1,741.4)% 
  %
Federal tax rate change due to the Tax Act(1,956) 864.0 % 
  %
Research & Development Credit
Research & Development Credit
Research & Development Credit(602)3.2 %(1,716)(18.5)%(214)(2.9)%
Change in valuation allowance
Change in valuation allowance
Change in valuation allowance(1,810)9.7 %1,320 14.2 %2,052 28.2 %
Impact of foreign tax rate changesImpact of foreign tax rate changes— %(246)(2.6)%49 0.7 %
Other(241) 106.5 % (43) (0.3)%Other27 (0.1)(0.1)%107 1.2 1.2 %75 1.0 1.0 %
Change in valuation allowance247
 (109.1)% 403
 2.6 %
Total provision for income taxes$1,942
 (857.9)% $5,870
 37.9 %
Total provision (benefit) for income taxesTotal provision (benefit) for income taxes$(1,220)6.5 %$2,720 29.3 %$3,395 46.6 %


The permanent differences identified above include normal recurring differences, such as meals, entertainment, and parking fringe benefits as well as a portion of the goodwill impairment charge.

On December 22, 2017,June 28, 2019, the Canadian province of Alberta enacted the Job Creation Tax Cut which reduced the Alberta corporate income tax rate from 12% to 11% starting in 2019 with further annual reductions to 10% in 2020, 9% in 2021, and 8% in 2022.

On March 27, 2020, the United States enacted fundamental changesthe Coronavirus Aid, Relief, and Economic Security Act (CARES Act). The CARES Act is an approximately $2 trillion emergency economic stimulus package in response to the federal tax law following the passage of the Tax Act.

The Tax Act is complex and significantly changes the U.S. corporate tax system by,Coronavirus outbreak, which among other things (a) reducingcontains numerous income tax provisions.Some of these tax provisions are effective retroactively for years ending before the date of enactment.The CARES Act provides a five-year carryback of net operating losses generated in years 2018 through 2020. As the statutory federal corporateincome tax rate fromapplicable to certain years within the carryback period is 35%, carryback to 21% forthose years of our estimated 2020 annual federal tax years beginning after December 31, 2017, (b) replacing the prior system of taxing corporations on foreign earnings of their foreign subsidiaries when the earnings are repatriated with a partial territorial tax system thatloss provides a 100% dividends-received deduction (DRD) to domestic corporations for foreign-sourced dividends received from 10%-or-more owned foreign corporations, (c) subjecting certain unrepatriated foreign earnings to a mandatory one-time transition tax on post-1986 earnings and profits ("the transition tax"), and (d) further limiting a public entity's ability to deduct compensationbenefit in excess of $1 million for covered employees.

Ourthe current federal statutory rate of 21%, resulting in an increased income tax expense for 2017 was $1.9 million. This amount reflects a net tax benefit of $2.3 million as a result$1.9 million. The income tax effects of the TaxCARES Act dueresulted in a cash refund of approximately $4.9 million in 2021 of taxes paid in prior years.

On December 27, 2020, the United States enacted the Consolidated Appropriations Act, 2021, (the "Appropriations Act") an additional stimulus package providing financial relief for individuals and small business. The Appropriations Act contains a variety of tax provisions, including full expensing of business meals in 2021 and 2022, and expansion of the employee retention tax credit. The Appropriations Act did not have a material impact on our consolidated financial position, results of operations, and cash flows.

In response to the remeasurementCOVID-19 pandemic, the American Rescue Plan Act was signed into law on March 11, 2021.This act, among other things, provides economic relief provisions to individuals and funding to certain businesses and programs.This guidance did not have a material impact on ourconsolidated financial position, results of federal deferredoperations, and cash flows.

In August 2022 the United States enacted the Inflation Reduction Act (“IRA”) of 2022 (Public Law No. 117-169), which includes a 15% book minimum tax assetson corporations with financial accounting profits over 1 billion US dollars (USD) and liabilities from 35%a 1% excise tax on certain stock buybacks. The IRA also contains numerous clean energy tax incentives related to 21%. This amount also includeselectricity production, carbon sequestration, alternative vehicles and fuels, and residential and commercial energy efficiency. The company does not expect this act to have a material impact.

charge of $3.9 million due to the transition tax. Additionally, we incurred a charge attributable to reducing our deferred tax assets by $0.3 million due to changes made to executive compensation rules pursuant to the Tax Act.



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 For the year ended May 31,
 2016 2015
Federal tax at statutory rate$13,445
 35.0 % $9,006
 35.0 %
State taxes, net of federal benefit966
 2.5 % 683
 2.7 %
Foreign tax(610) (1.6)% (517) (2.0)%
Contingent consideration(425) (1.1)% (914) (3.6)%
Permanent differences245
 0.6 % 196
 0.8 %
Other(311) (0.8)% (30) (0.1)%
Change in valuation allowance455
 1.2 % 1,316
 5.1 %
Total provision for income taxes$13,765
 35.8 % $9,740
 37.9 %
Deferred income tax attributes resulting from differences between financial accounting amounts and income tax basis of assets and liabilities are as follows:
 December 31,
 2017 2016
Deferred income tax assets   
Allowance for doubtful accounts$838
 $969
Inventory265
 236
Intangible assets2,255
 2,529
Accrued expenses2,560
 5,157
Net operating loss carryforward3,729
 4,094
Capital lease obligations1,004
 1,140
Capital losses463
 719
Foreign tax credit carryover618
 
Deferred share-based compensation4,080
 5,802
Other484
 285
Deferred income tax assets16,296
 20,931
Valuation allowance(4,044) (3,896)
Net deferred income tax assets12,252
 17,035
Deferred income tax liabilities   
Property and equipment(6,893) (8,655)
Goodwill(6,578) (13,586)
Intangible assets(5,972) (5,051)
Other(6) (11)
Deferred income tax liabilities(19,449) (27,303)
Net deferred income taxes$(7,197) $(10,268)
follows (in thousands):
 December 31,
 20232022
Deferred income tax assets
Allowance for doubtful accounts$298 $826 
Inventory1,201 806 
Intangible assets1,036 1,178 
Accrued expenses4,085 4,365 
Net operating loss carryforward5,329 4,985 
Finance lease obligations275 463 
Stock Options187 — 
Deferred stock based compensation723 1,152 
Interest carryforward4,174 1,501 
Right-of-use liability8,984 9,886 
R&D Expense5,091 2,836 
Credits87 490 
Other1,694 1,495 
Deferred income tax assets33,164 29,983 
Valuation allowance(6,029)(7,787)
Net deferred income tax assets$27,135 $22,196 
Deferred income tax liabilities
Property and equipment$(6,472)$(6,493)
Goodwill(9,132)(7,645)
Intangible assets(2,822)(3,601)
Right-of-use asset(8,944)(9,841)
Other(2)(122)
Deferred income tax liabilities(27,372)(27,702)
Net deferred income taxes$(237)$(5,506)
 
As of December 31, 2017,2023, the Company had no federal net operating loss carry forwards (NOLs) in. In addition, as of December 31, 2023, the amountCompany had state and foreign NOLs of approximately $0.2$10.4 million which may be utilized subject to limitation under Internal Revenue Code section 382. The federaland $15.0 million, respectively. Approximately $4.6 million of the state NOLs expire at various times from 2031 to 2033. In addition, as2040, while the remainder of December 31, 2017, the Company had state and foreign NOLs of $38.4 million and $11.0 million, respectively. TheCompany's state NOLs expire at various times from 2020 to 2037.do not expire. Approximately $0.7$2.8 million of the foreign NOLs expire at various times from 20222023 to 2037,2041, while the remainder of the Company's foreign NOLs do not expire.


In assessing the ability to realize deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax assets will be realized. Valuation allowances are provided when management believes the Company's deferred tax assets are not recoverable based on future reversals of existing taxable temporary differences, taxable income in prior carryback year(s) if carryback is permitted under the tax law, and an assessment of estimated future taxable income, exclusive of reversing temporary differences and carryforwards, that incorporates ongoing, prudent and feasible tax planning strategies. At December 31, 20172023 and December 31, 2016,2022, the Company has a valuation

allowance of approximately $4.0$6.0 million and $3.9$7.8 million, respectively, primarily against certain state and foreign NOLs capital losses generated by the disposals of certain foreign subsidiaries and other specific deferred tax assets. The net increase in the valuation allowance of $0.1approximately $1.8 million is primarily attributable to state and foreign net operating losses and changes in foreign exchange rates, offset by a $0.2 million increase in against state deferred tax assets and a net $0.1 million decrease in federal valuation allowance attributable to the Tax Act.reduction of expiring losses. Except for those deferred tax assets subject to the valuation allowance, management believes that it will realize all deferred tax assets as a result of sufficient future taxable income in each tax jurisdiction in which the Company has deferred tax assets..
 
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The following table summarizes the changes in the Company’s gross unrecognized tax benefits, excluding interest and penalties:penalties (in thousands):
 For the year ended December 31, For the Transition Period ended December 31,
 2017 2016
Balance at beginning of period$267
 $303
Additions for tax positions related to the current fiscal period11
 8
Additions for tax positions related to prior years188
 
Decreases for tax positions related to prior years
 (11)
Impact of foreign exchange fluctuation10
 
Settlements(198) 
Reductions related to the expiration of statutes of limitations(122) (33)
Balance at end of period$156
 $267
 For the year ended December 31,
 20232022
Balance at beginning of period$258 $300 
Additions for tax positions related to the current fiscal period— — 
Additions for tax positions related to prior years— 
Reductions related to the expiration of statutes of limitations— (43)
Balance at end of period$258 $258 
 
The Company has recorded the unrecognized tax benefits in other long-term liabilities in the consolidated balance sheets. As of December 31, 20172023 and December 31, 2016,2022, there were approximately $0.2$0.3 million and $0.3 million of unrecognized tax benefits, respectively, including penalties and interest that ifinterest. If the Company recognized these unrecognized tax benefits, approximately $0.3 million and $0.3 million would favorably affect the effective tax rate.rate for both December 31, 2023 and December 31, 2022, respectively. Interest and penalties related to unrecognized tax benefits are recorded in income tax expense and are not significant for the yearyears ended December 31, 2017, the transition period ended December 31, 20162023, 2022 and the fiscal years ended May 31, 2016 and 2015.2021. The Company anticipates a decrease to its unrecognized tax benefits of less than $0.1 million excluding interest and penalties within the next 12 months.
 
The Company is subject to taxation in the United States and various states and foreign jurisdictions. The Company is no longer subject to U.S. federal income tax examinations for years ending before MayDecember 31, 20152017 and generally is no longer subject to state, local or foreign income tax examinations by tax authorities for years ending before MayDecember 31, 2014.2019. Currently the Company is undergoing a federal tax audit for years ending December 31, 2018 through December 31, 2020.
 
Net income (loss) of foreign subsidiaries was $4.1 million, $6.9 million, $7.5 million and $(0.8) million for the year ended December 31, 2017, the transition period ended December 31, 2016, fiscal 2016 and 2015, respectively. Generally, it has been our practice and intention to reinvest the earnings of our non-U.S. subsidiaries in those operations. As previously noted, the Tax Act made significant changes to the taxation of undistributed earnings, requiring that all previously untaxed earnings and profits of ourthe Company's controlled foreign operations be subjected to the transition tax. Since these earnings have now been subjected to U.S. federal tax, they would only be potentially subject to limited other taxes, including foreign withholding and certain state taxes. As of December 31, 2017,2023, the Company has not recognized U.S.a deferred tax expenseliability for foreign withholdings and state taxes on its undistributed international earnings or losses of its foreign subsidiaries since it intends to indefinitely reinvest the earnings outside the United States.

The Company considers the accountinghas estimated $73.3 million of the effects of the Tax Act to be estimates. The provisional amounts recorded are based on the Company’s current interpretation and understanding of the Tax Act and may change as the Company receives additional clarification and implementation guidance and finalizes their analysis of all impacts and positions with regard to the Tax Act. The Company will continue to gather and evaluate the data and guidance to refine the income tax impact of the Tax Act. The effect of the change in federal corporate tax rate from 35% to 21% is subject to change based on resolution of estimates used in determining the amounts ofunremitted international earnings which provides an unrecorded deferred tax assets and liabilities that were remeasured. Our calculation of the transition tax is subject to further refinement as more information is gathered from our foreign subsidiaries, estimates used in the calculation are resolved, and as states provide guidance on how the transition tax may or may not apply in their respective jurisdictions. The reduction of the deferred tax assetliability related to executive compensation may be changed based upon actual 2018 compensation as compared to our projections of compensation that may be limited. Finally, the Tax Act also imposes a minimum tax on certain foreign subsidiaries deemed to be in excess of a routine return based on tangible asset investment, whichundistributed international earnings is designed to discourage income shifting by subjecting certain foreign intangibles and other income to current U.S. tax.

Effective for tax years beginning after 2017, U.S. shareholders of certain foreign corporations are subject to current U.S. tax on their global intangible low-taxes income (GILTI). We have not yet evaluated our potential liability, if any, under the minimum tax for GILTI in 2018 or future years. Accordingly, we have not yet made an accounting policy election either to account for these effects in the future period when the tax arises or to recognize them as part of the deferred taxes. Pursuant to SAB 118, the Company will complete the accounting for the tax effects of all of the provisions of the Tax Act within the required measurement period not to extend beyond one year from the enactment date.approximately $1.5 million.
 
15. Employee Benefit Plans
 
The Company provides a 401(k) savings plan for eligible U.S. based employees. Employee contributions are discretionary up to the IRS limits each year and catch up contributions are allowed for employees 50 years of age or older. Under the 401(k) plan, employees become eligible to participate on the first day of the month after three months of continuous service. Under this plan, the Company matches 50% of the employee’s contributions up to 6% of the employee’s annual compensation, as defined by the plan. There is a five-year vesting schedule for the Company match.

During the third quarter of 2021, the Company re-installed the employer match which was previously suspended as part of the Company's cost reduction initiatives undertaken in 2020 due to the COVID-19 pandemic. The Company’s contribution to the plan was $3.7$3.9 million, $2.0 million, $3.5$3.0 million, and $3.0$1.2 million for the yearyears ended December 31, 2017, the transition period ended December 31, 20162023, 2022 and the years ended May 31, 2016 and 2015,2021, respectively.


The Company participatesCompany's subsidiary participated with other employers in contributing to the Boilermaker-Blacksmith National Pension Trust (EIN 48-6168020) (“Boilermakers”) and Plumbers and Pipefitters National Pension Fund (EIN 52-6152779) (“Pipefitters”), multi-employer defined benefit pension plans, which coverscover certain U.S. based union employees. The plans provide multiple planpension benefits with corresponding contribution rates that are collectively bargained between participating employers and their affiliated Boilermakers and Pipefitters local unions. Both the Boilermakers and Pipefitters plans are between 65 percent andapproximately 80 percent funded as of the latest Form 5500 filed.filed, respectively. The Company’sCompany did not make any contributions to the Boilermakers and Pipefitters plans, collectively, were $2.4 million, $1.5 million, $2.5 million and $2.5 million forplan during the yearyears ended December 31, 2017, the transition period ended December 31, 20162023 and the years ended May 31, 2016 and 2015. These2022 while making de minimis contributions represented less than five percent of total contributions made to the plans.Pipefitters plan during the same periods. See Note18-Commitments and Contingencies, Pension Related Contingencies, for additional detail.


The Company has other benefit plans covering certain employees in selected foreign countries.throughout the Company. Amounts charged to expense under these plans were not significant in any year.


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Table of Contents
16. Related Party Transactions
 
On August 17, 2016, the Company entered into an agreement with its then Chairman, CEO and Director, Dr. Sotirios Vahaviolos, to purchase up to 1 million of his shares, commencing in October 2016. Refer to Note 20 for further details of the treasury stock repurchases from Dr. Vahaviolos.
The Company leases its headquarters under an operating lease from a shareholderstockholder and officerdirector of the Company. On August 1, 2014, the Company extended its lease at its headquarters requiring monthly payments through October 2024. Total rent payments made during the year ended December 31, 20172023 were approximately $0.9$1.0 million. See Note 18 — Commitments and Contingencies17-Leases for further detail related to operating leases.detail.
 
The Company has a lease for office space located in France, which is partly owned by a shareholder and officer. Total rent payments made during the year ended December 31, 2017 were approximately $0.2 million.
The Company has a lease for office space located in Brazil, which is partly owned by a shareholder and officer. Total rent payments made during the year ended December 31, 2017 were approximately $0.1 million.

The Company receives benefits consulting services from Capital Management Enterprise (“CME”), which is owned by one of its non-employee directors,. Manuel N. Stamatakis.Stamatakis, Chairman of our Board of Directors and our interim President and Chief Executive Officer, is the Chief Executive Officer of CME. The Company does not pay any fees directly to CME. AnyCME and any compensation CME receives related to work for the Company is fromreceived by commissions paid by the third-party benefit providers.

17. Obligations under Capital Leases
 

The Company leases certain office space, and serviceoperating facilities, machinery, equipment, under capital leases, requiring monthly payments ranging from less than $1 thousand to $73 thousand, including effective interest rates that range from approximately 1% to 7% expiring through June 2029. The net bookand vehicles. Concurrent with the adoption of ASC 842, the Company recognized a right-of-use (ROU) asset and lease liability based on the present value of assets under capitalthe future lease obligations was $19.5payments over the lease term for each lease agreement. The Company elected not to recognize a ROU asset and lease liability for leases with terms of 12 months or less and will continue to recognize lease expense for these leases on a straight-line basis over the lease term. The Company has leases with both lease components and non-lease components, such as common area maintenance, utilities, or other repairs and maintenance. For all asset classes, the Company decided to utilize the practical expedient to include both fixed lease components and fixed non-lease components in calculating the ROU asset and lease liability. The Company identified variable lease payments, such as maintenance payments based on actual activities performed or costs incurred, at lease commencement by assessing the nature of the payment provisions, including whether the payments are subject to a minimum charge. Many of the Company's leases include one or more options to renew. When it is reasonably certain that the Company will exercise the option, the Company will include the impact of the option in the lease term for purposes of determining future lease payments. As the Company is unable to determine the discount rate implicit in its lease agreements, the Company uses its incremental borrowing rate on the commencement date to calculate the present value of future payments.

The Company’s Consolidated Balance Sheets include the following related to operating leases as of December 31, 2023 and 2022 (in thousands):
LeasesClassification20232022
Assets:
ROU assetsOther Assets$37,512 $36,946 
Liabilities:
ROU liability - currentAccrued expenses and other current liabilities$10,686 $10,376 
ROU liability - long-termOther long-term liabilities28,219 28,066 
Total ROU liabilities$38,905 $38,442 

Included within the balance of operating leases is a lease for the Company’s headquarters which is with a related party. The ROU liability for this facility is approximately $0.8 million as of December 31, 2023 and $1.8 million as of December 31, 2022. Total rent payments for this facility were approximately $1.0 million and $17.6$1.0 million atduring the years ended December 31, 20172023 and 2022. An agreement was reached with the related party to reduce rental payments by 12.5% for the lease of the Company’s headquarters, effective February 2022 as part of a voluntary reduction.

As of December 31, 2016, respectively.2023 and 2022, the total ROU assets attributable to finance leases are approximately $14.5 million and $13.0 million, respectively, which is included in Property, plant, and equipment, net on the Consolidated Balance Sheets.

Scheduled future minimum lease payments subsequent to December 31, 2017 are as follows:
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2018$5,899
20193,788
20202,485
20211,778
2022634
Thereafter760
Total minimum lease payments15,344
Less: amount representing interest(731)
Present value of minimum lease payments14,613
Less: current portion of obligations under capital leases(5,875)
Obligations under capital leases, net of current portion$8,738
Table of Contents
18. Commitments and Contingencies
Operating Leases
The Company is party to various non-cancelable operatingcomponents of lease agreements, primarily for its international and domestic office and lab space. Future minimum lease payments under noncancelable operating leases in each of the five years and thereafter subsequent to December 31, 2017 are as follows:
2018$11,542
20198,888
20206,902
20214,881
20224,304
Thereafter12,915
Total$49,432
Total rent expense was $11.8 million, $6.6 million, $11.2 million and $10.6 millioncosts for the year ended December 31, 2017, the transition period ended2023 and 2022 are as follows (in thousands):
Classification20232022
Finance lease expense:
Amortization of ROU assetsDepreciation and amortization$5,152 $4,068 
Interest on lease liabilitiesInterest expense917 624 
Operating lease expenseCost of revenue; Selling, general & administrative expenses13,234 12,783 
Short-term lease expenseCost of revenue; Selling, general & administrative expenses179 77 
Variable lease expenseCost of revenue; Selling, general & administrative expenses2,034 2,141 
Total$21,516 $19,693 

Additional information related to leases as of December 31, 20162023 and the years ended May2022 is as follows:
20232022
Cash paid for amounts included in the measurement of lease liabilities for finance and operating leases (in thousands):
Finance - financing cash flows$5,047 $4,140 
Finance - operating cash flows917 624 
Operating - operating cash flows13,208 12,502 
ROU assets obtained in the exchange for lease liabilities:
Finance leases$7,125 $5,076 
Operating leases10,598 6,067 
Weighted-average remaining lease term (in years):
Finance leases4.75.1
Operating leases4.44.7
Weighted-average discount rate:
Finance leases6.5 %5.5 %
Operating leases6.1 %5.6 %

Maturities of lease liabilities as of December 31, 20162023 is as follows (in thousands):
FinanceOperating
2024$5,955 $12,485 
20254,520 9,978 
20263,787 7,426 
20272,832 5,851 
20281,168 4,230 
Thereafter128 3,914 
Total18,390 43,884 
Less: Present value discount1,970 4,979 
Lease liability$16,420 $38,905 
18. Commitments and 2015, respectively.Contingencies

Legal Proceedings and Government Investigations
 
The Company is subject to periodicperiodically involved in lawsuits, investigations and claims that arise in the ordinary course of business. The Company cannot predict with certainty the ultimate resolution of lawsuits, investigations and claims asserted against it. Except
77

for possible losses from the matters described below, the Company does not believe that any currently pending or threatened legal proceeding to which the Company is or is likely to become a party will have a material adverse effect on its business, results of operations, cash flows or financial condition. The costs of defenseincurred by the Company to defend lawsuits, investigations and claims and amounts that may be recovered against the Company pays to other parties because of these matters may be covered by insurance for certain matters.in some circumstances.



Litigation and Commercial Claims

The Company was contracted to perform inspections of welds on various pipeline projects in Texas for a defendantcustomer. The customer provided the Company with notice in December 2019, alleging that the Company’s inspection of 66 welds (out of approximately 16,000 welds inspected) were not in compliance with the contract, claimed approximately $7.6 million in damages, and requested that the Company pay these damages and any other damages incurred. The Company filed a consolidated class and collectivelawsuit in the District Court of Bexar County, Texas, 37th Judicial District, on December 17, 2019, in an action Edgar Viceral and David Kruger vcaptioned Mistras Group, et al, pendingInc. v. Epic Y-Grade Pipeline LP, to recover the $1.4 million and other amounts due to the Company. The customer filed a counterclaim on March 6, 2020, alleging breach of contract and seeking recovery of its alleged damages. On April 25, 2023, the parties agreed to settle all claims, and in July 2023, the parties executed a settlement agreement. As part of the settlement, the Company paid $0.3 million in July 2023 (which the Company estimates is significantly less than the cost of going to trial) and released its claim of $1.4 million for associated past due receivables, which were fully reserved for in prior periods. In the year ended December 31, 2022, the Company recorded a charge of $0.1 million for a potential loss from this matter. The Company recorded a reserve in the U.S. Districtamount of $1.4 million during the twelve months ended December 31, 2019 for these past due receivables.

Two proceedings were filed in California Superior Court for the Northern DistrictCounty of Los Angeles regarding alleged violations of the California Labor Code. Both cases were captioned Justin Price v. Mistras Group, Inc., one being a purported class action lawsuit on behalf of current and former Mistras employees in California, filed on June 10, 2020, and the other was filed on September 18, 2020, on behalf of the State of California originally filed in April 2015.under the California Private Attorney General Act on the basis of the same alleged violations. The two cases were consolidated and payment was demanded for all damages, including unpaid wages, and various fines and penalties available under California law. On May 4, 2021, the Company settled the consolidated class and collective action that resultedagreed to a settlement of all claims in the cases, which was more formally documented pursuant to a settlement agreement completed October 5, 2021, as amended as of May 3, 2022. Pursuant to the settlement, the Company recording a pre-tax chargeagreed to pay $2.3 million to resolve the allegations in these proceedings and to be responsible for the employer portion of $6.3 million inpayroll taxes on the fourth quarteramount of fiscal 2016,the settlement allocated to wages. The settlement as agreed upon by the parties received final court approval on September 26, 2022, and the Company paid the settlement proceeds and related payroll taxes to the claims administrator in the fourth quarter ended March 31, 2017.

The Company was a defendant in the lawsuit AGL Services Company v. Mistras Group, Inc., pending in U.S. District Court for
the Northern District of Georgia, filed November 2016. The case involved radiography work performed by the Company in
2012 on the construction of a pipeline project in the U.S. The owner of the pipeline project claimed damages of approximately $5.8 million.  At a trial concluded on October 26, 2017, the jury awarded the plaintiff its damage claim plus interest, which the Company believes is fully covered by insurance.

The Company’s subsidiary in France has been involved in a dispute with a former owner of a business in France purchased by the Company’s French subsidiary. The former owner received a judgment in his favor in the amount of approximately $0.4 million for payment of the contingent consideration portion of the purchase price for the business.2022. The Company recorded a reserve for the full amountexpense of the judgmentapproximately $1.6 million during the three months ended June 30, 2016. March 31, 2021 related to this settlement, which is in addition to expense of $0.8 million the Company recorded during the three months ended December 31, 2020.

Pension Related Contingencies

Certain of Company’s subsidiaries had significant reductions in their unionized workers in 2018.The Company’scollective bargaining agreements for the employees of this subsidiary appealedrequired contributions for these employees to two national multi-employer pension funds.The reduction in employees resulted in the judgment andsubsidiary incurring a complete withdrawal to one of the entire judgmentpension funds under the Employee Retirement Income Security Act of 1974 ("ERISA"), which was overturned on appeal, howeverfully satisfied in 2019.The Company has determined that the full appeals processsubsidiary is not yet completed, and therefore, we have not adjustedlikely to incur partial or complete withdrawal liability to the reserveother pension fund. The balance of the estimated total amount of this potential liability as of December 31, 2017.2023 is approximately $2.5 million, which was incurred in 2018 and 2019.


The Company was a defendant in a lawsuit, Triumph Aerostructures, LLC d/b/a Triumph Aerostructures-Vought Aircraft Division v. Mistras Group, Inc., pending in Texas State district court, 193rd Judicial District, Dallas County, Texas, filed September 2016. The plaintiff alleged that in 2014 Mistras delivered a defective Ultrasonic inspection systemAcquisition and alleged damages of approximately $2.3 million, the amount it paid for the system. In Januarydisposition related contingencies
During 2018, the Company agreed to settle this matter forsold a payment of $1.6 millionsubsidiary in the Products and Mistras subsequently obtained ownershipSystems segment. As part of the underlying ultrasonic inspection system. A charge for $1.6 million was recorded in 2017 and payment was made in February 2018.

Government Investigations

In May 2015,sale, the Company receivedentered into a noticethree-year agreement to purchase products from the U.S. Environmental Protection Agency (“EPA”) that it performedbuyer, with a preliminary assessment at a leased facilitycumulative commitment of $2.3 million. On August 3, 2021, the Company operates in Cudahy, California. Based uponparties amended the preliminary assessment,agreement and extended the EPA is conducting an investigation of the site, which includes taking groundwater and soil samples. The purpose of the investigation is to determine whether any hazardous materials were released from the facility. The Company has been informed that certain hazardous materials and pollutants have been found in the ground water in the general vicinity of the site and the EPA is attempting to ascertain the origination or source of these materials and pollutants. Given the historic industrial use of the site, the EPA determined that the site of the Cudahy facility should be examined, along with numerous other sites in the vicinity. At this time, the Company is unable to determine whether it has any liability in connection with this matter and if so, the amount or range of any such liability, and accordingly, has not established any reserves for this matter.

Other Potential Contingencies

Some the Company’s workforce is unionized and the terms of employment for these workers are governedperiod by collective bargaining agreements, or CBAs.  Under these CBAs, the Company’s subsidiaries are required to contribute to the national pension funds for the unions representing these employees, which are multi-employer pension plans.  The Company was notified that a significant project was awarded to another contractor in early 2018, and as a result, the Company and its subsidiaries may experience a significant reduction in the number of its employees covered by CBAs.  Under certain circumstances, such a reduction in the number of employees participating in a multi-employer pension plan could result in a complete or partial withdrawal liability to these multi-employer pension plans under ERISA.  Presently, the Company is uncertain when or whether its subsidiaries will incur withdrawal liability and, if such liability is incurred, whether it will be material. 

Acquisition-related contingencies
The Company is liable for contingent consideration in connection with certain of its acquisitions. 12 months. As of December 31, 2017, total potential acquisition-related contingent consideration ranged from zero to $8.5 million and would be payable upon2022, the achievement of specific performance metrics by certain of the acquired companies over the next 2.5 years of operations. See Note 7 - Acquisitions to these consolidated financial statements for further information with respect to the Company’s acquisitions completed during the year ended December 31, 2017 and the transition period ended December 31, 2016.commitment was fully satisfied.
19. Segment Disclosure
 
The Company’s three operating segments are:
 
Services.
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North America. This segment provides asset protection solutions predominantly in North America, with the largest concentration in the United States, followed by Canada, consisting primarily of non-destructive testing, andNDT, inspection,

mechanical and engineering services that are used to evaluate the safety, structural integrity and reliability of critical energy, industrial and public infrastructure.infrastructure and commercial aerospace components. Software, digital and data services are included in this segment.


International. This segment offers services, products and systems similar to those of the other segments to select markets within Europe, the Middle East, Africa, Asia and South America, but not to customers in China and South Korea, which are served by the Products and Systems segment.


Products and Systems. This segment designs, manufactures, sells, installs and services the Company’s asset protection products and systems, including equipment and instrumentation, predominantly in the United States.


Costs incurred for general corporate services, including finance, legal, and certain other costs that are provided to the segments are reported within Corporate and eliminations. Sales to the International segment from the Products and Systems segment and subsequent sales by the International segment of the same items are recorded and reflected in the operating performance of both segments. Additionally, engineering charges and royalty fees charged to the ServicesNorth America and International segments by the Products and Systems segment are reflected in the operating performance of each segment. All such intersegment transactions are eliminated in the Company’s consolidated financial reporting.
 
The accounting policies of the reportable segments are the same as those described in Note 2 — Summary1-Summary of Significant Accounting Policies and Practices. Segment income from operations is one of the primary performance measures used by the Chief Executive Officer, who is the chief operating decision maker, to assess the performance of each segment and make decisions as to resource allocations.allocation decisions. Certain general and administrative costs such as human resources, information technology and training are allocated to the segments. Segment income from operations excludes interest and other financial charges and income taxes. Corporate and other assets are comprised principally of cash, deposits, property, plant and equipment, domestic deferred taxes, deferred charges and other assets. Corporate loss from operations consists of administrative charges related to corporate personnel and other charges that cannot be readily identified for allocation to a particular segment.
 
Selected consolidated financial information by segment for the periods shown was as follows (intercompany(with intercompany transactions are eliminated in Corporate and eliminations):

 For the year ended December 31,
 202320222021
Revenue
North America$579,330 $573,336 $555,387 
International124,414 112,425 117,245 
Products and Systems12,986 12,727 13,831 
Corporate and eliminations(11,257)(11,115)(9,332)
 $705,473 $687,373 $677,131 
 For the year ended December 31,
 202320222021
Gross profit
North America$163,960 $159,049 $155,384 
International33,610 33,591 34,282 
Products and Systems6,457 5,490 7,001 
Corporate and eliminations(220)43 480 
 $203,807 $198,173 $197,147 

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Table of Contents
 For the year ended December 31, For the Transition Period ended December 31, For the year ended May 31,
 2017 2016 2016 2015
Revenues     
  
Services$543,565
 $293,218
 $553,279
 $540,224
International144,265
 104,013
 143,025
 146,953
Products and Systems23,297
 14,541
 30,293
 31,255
Corporate and eliminations(10,157) (7,611) (7,416) (7,180)
 $700,970
 $404,161
 $719,181
 $711,252
Income (loss) from operations by operating segment includes intercompany transactions, which are eliminated in Corporate and eliminations.
 For the year ended December 31,
 202320222021
Income (loss) from operations
North America$55,170 $49,616 $48,458 
International(12,229)3,566 1,839 
Products and Systems267 (992)(117)
Corporate and eliminations(45,112)(32,391)(32,010)
 $(1,904)$19,799 $18,170 
 For the year ended December 31,
 202320222021
Depreciation and amortization
North America$25,774 $25,103 $25,259 
International7,580 7,648 8,791 
Products and Systems712 810 928 
Corporate and eliminations33 (267)(57)
 $34,099 $33,294 $34,921 
 December 31,
 20232022
Intangible assets, net
North America$37,622 $43,260 
International2,998 4,422 
Products and Systems1,168 1,208 
Corporate and eliminations2,206 125 
 $43,994 $49,015 
December 31,
For the year ended December 31, For the Transition Period ended December 31, For the year ended May 31, 20232022
2017 2016 2016 2015
Gross profit     
  
Services$139,160
 $75,784
 $145,262
 $135,201
Total assets
North America
North America
North America
International38,974
 34,210
 43,613
 34,572
Products and Systems9,798
 6,920
 14,022
 14,314
Corporate and eliminations(220) 90
 111
 646
$187,712
 $117,004
 $203,008
 $184,733
 December 31,
 20232022
Long-lived assets
United States$177,412 $176,237 
Other Americas107,356 108,582 
Europe27,552 41,392 
 $312,320 $326,211 


 For the year ended December 31, For the Transition Period ended December 31, For the year ended May 31,
 2017 2016 2016 2015
Income from operations     
  
Services$46,677
 $22,411
 $52,552
 $49,142
International3,537
 10,597
 9,293
 (575)
Products and Systems(16,991) (254) 2,688
 2,461
Corporate and eliminations(29,063) (15,221) (21,356) (20,675)
 $4,160
 $17,533
 $43,177
 $30,353
 For the year ended December 31, For the Transition Period ended December 31, For the year ended May 31,
 2017 2016 2016 2015
Depreciation and amortization     
  
Services$21,649
 $12,765
 $22,725
 $22,268
International7,768
 5,306
 7,774
 8,451
Products and Systems2,180
 1,372
 2,323
 2,426
Corporate and eliminations(214) (244) (348) 141
 $31,383
 $19,199
 $32,474
 $33,286
 December 31,
 2017 2016
Intangible assets, net   
Services$46,864
 $19,550
International13,899
 14,139
Products and Systems2,261
 5,482
Corporate and eliminations715
 836
 $63,739
 $40,007

 December 31,
 2017 2016
Total assets   
Services$377,585
 $291,539
International150,779
 130,427
Products and Systems12,733
 28,964
Corporate and eliminations13,344
 18,497
 $554,441
 $469,427
RevenueRefer to Note 2-Revenue, for revenue by segment and long-lived assets by geographic area was as follows:
 For the year ended December 31, For the Transition Period ended December 31, For the year ended May 31,
 2017 2016 2016 2015
Revenue     
  
United States$466,683
 $256,926
 $519,361
 $491,818
Other Americas86,870
 41,777
 67,809
 68,628
Europe132,421
 91,847
 118,566
 137,071
Asia-Pacific14,996
 13,611
 13,445
 13,735
 $700,970
 $404,161
 $719,181
 $711,252

 December 31,
 2017 2016
Long-lived assets   
United States$237,616
 $186,960
Other Americas36,011
 29,065
Europe80,693
 67,072
 $354,320
 $283,097
20. Repurchase of Common Stock

On October 7, 2015, the Company's Board of Directors approved a $50 million stock repurchase plan. As part of this plan, on August 17, 2016, the Company entered into an agreement with its Chairman and then CEO, Dr. Sotirios Vahaviolos, to purchase up to 1 million of his shares, commencing in October 2016. Pursuant to the agreement, in general, the Company agreed to purchase from Dr. Vahaviolos up to $2 million of shares each month, at a 2% discount to the average daily price of the Company's common stock for the preceding month. During the transition periodyears ended December 31, 2016, the Company purchased approximately 274,000 shares from Dr. Vahaviolos at an average price of $21.90 per share2023, 2022, and an aggregate cost of $6.0 million as well as 146,000 shares in the open market at an average price of $20.48 per share and an aggregate cost of approximately $3.0 million. During the year ended December 31, 2017, the Company purchased approximately 726,000 shares from Dr. Vahaviolos at an average price of $21.93 per share and an aggregate cost of $15.9 million. From the inception of the plan through December 31, 2017, the Company purchased 1,000,000 shares from Dr. Vahaviolos at an average price of $21.92 per share for an aggregate cost of approximately $21.9 million.2021.

The Company retired all of its repurchased shares during the fourth quarter of 2017 and they are not included in common stock issued and outstanding as of December 31, 2017. As of December 31, 2017, approximately $25.1 million remained available to repurchase shares under the stock repurchase plan.

21. TWELVE MONTHS ENDED DECEMBER 31, 2016 AND SEVEN MONTHS ENDED DECEMBER 31, 2015 COMPARATIVE DATA (Unaudited)
The condensed consolidated statement of income for the twelve months ended December 31, 2016 and the seven months ended December 31, 2015 is as follows:

  Twelve Months Ended December 31, 2016 Seven Months Ended December 31, 2015
  (unaudited)
Revenues $684,762
 $427,913
Cost of revenues 468,929
 292,718
Depreciation 21,699
 12,005
Gross profit 194,134
 123,190
Selling, general and administrative expenses 148,914
 81,117
Research and engineering 2,670
 1,431
Depreciation and amortization 10,689
 6,503
Litigation charges 6,320
 
Acquisition-related benefit, net (5) (959)
Income from operations 25,546
 35,098
Interest expense, net 3,075
 3,672
Income before provision for income taxes 22,471
 31,426
Provision for income taxes 8,008
 11,627
Net income 14,463
 19,799
Less: Net income (loss) attributable to non-controlling interests 54
 (15)
Net income available to Mistras Group, Inc. shareholders $14,409
 $19,814
Net income per share: Basic $0.50
 $0.69
Net income per share: Diluted $0.48
 $0.67
Weighted average shares outstanding:    
Basic 28,960
 28,810
Diluted 30,114
 29,676



22.20. Selected Quarterly Financial Information (unaudited)


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The following is a summary of the quarterly results of operations for calendar years 20172023, 2022, and 2016.2021 (in thousands).

Quarter ended December 31, 2023September 30, 2023June 30, 2023March 31, 2023
Revenue$182,073 $179,354 $176,030 $168,016 
Gross Profit53,627 54,382 49,722 46,077 
Income (loss) from operations706 (4,682)3,893 (1,830)
Net income (loss) attributable to Mistras Group, Inc.$(2,514)$(10,298)$337 $(4,986)
Earnings (loss) per common share:
Basic$(0.08)$(0.34)$0.01 $(0.17)
Diluted$(0.08)$(0.34)$0.01 $(0.17)



Quarter ended December 31, 2022September 30, 2022June 30, 2022March 31, 2022
Revenue$168,218 $178,462 $179,031 $161,662 
Gross Profit50,939 53,784 53,558 39,892 
Income (loss) from operations5,802 9,114 9,576 (4,698)
Net income (loss) attributable to Mistras Group, Inc.$2,842 $4,373 $4,643 $(5,363)
Earnings (loss) per common share:
Basic$0.09 $0.15 $0.15 $(0.18)
Diluted$0.09 $0.14 $0.15 $(0.18)


Fiscal quarter ended  December 31, 2017 September 30, 2017 June 30, 2017 March 31, 2017
Revenues $187,643
 $179,570
 $170,439
 $163,318
Quarter ended Quarter ended December 31, 2021September 30, 2021June 30, 2021March 31, 2021
Revenue
Gross Profit 50,319
 47,897
 46,343
 43,153
Income (loss) from operations 6,282
 (10,375) 5,003
 3,250
Net income (loss) attributable to Mistras Group, Inc. $884
 $(6,968) $2,217
 $1,692
Earnings (loss) per common share:        
Basic $0.03
 $(0.25) $0.08
 $0.06
Basic
Basic
Diluted $0.03
 $(0.25) $0.07
 $0.06
 

21. Subsequent Events

On February 27, 2024, the Company entered into the First Amendment (the “Amendment”) to its New Credit Agreement, dated August 1, 2022, with JPMorgan Chase Bank N.A., as administrative agent for the lenders and a lender and the other lenders under the New Credit Agreement.

The First Amendment was filed as Exhibit 10.1 to the Company’s Form 8-K filed with the SEC on March 1, 2024.

The Amendment increases the amount of non-recurring cash charges (as defined in the New Credit Agreement) allowed to be added back for any period of four consecutive quarters for purposes of defining EBITDA under Section 1.01 of the New Credit Agreement from $10 million to $15 million for the periods ended December 31, 2023 to December 31, 2024. The allowable non-recurring cash charge addback reverts to $10 million starting January 1, 2025.

Additionally, the minimum Consolidated Fixed Charge Coverage Ratio was reduced from 1.25 to 1, to 1.10 to 1, for the fiscal quarters ended December 31, 2023 and March 31, 2024. For the period ending June 30, 2024 to maturity, the Fixed Charge Coverage Ratio is 1.25 to 1 as stated in the New Credit Agreement.


Fiscal quarter ended  December 31, 2016 September 30, 2016 June 30, 2016 March 31, 2016
Revenues $170,156
 $168,811
 $178,340
 $167,455
Gross Profit 47,978
 50,651
 51,535
 43,970
Income from operations 2,944
 12,116
 4,840
 5,646
Net income attributable to Mistras Group, Inc. $963
 $7,238
 $2,761
 $3,447
Earnings per common share:      
  
Basic $0.03
 $0.25
 $0.10
 $0.12
Diluted $0.03
 $0.24
 $0.09
 $0.11
Item 9.   Changes in and Disagreements with Accountants on Accounting and Financial DisclosureCHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE
 
None.

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Item 9A.   Controls and ProceduresCONTROLS AND PROCEDURES
 
Evaluation of Disclosure Controls and Procedures
 
Pursuant to Rule 13a-15(b) under the Exchange Act, our management carried out an evaluation, under the supervision and with the participation of our Interim President and Chief Executive Officer and our Senior Executive Vice President and Chief Financial Officer, and Treasurer, of the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rule 13a-15(e) ofunder the Exchange Act) and procedures.. Based upon that evaluation, our Interim President and Chief Executive Officer and our Senior Executive Vice President and Chief Financial Officer and Treasurer concluded that, as of December 31, 2017,2023, our disclosure controls and procedures were effective.

Management’s Report on Internal Control Over Financial Reporting
 
Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as defined in Rules��Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934, as amended (the Exchange Act).Act. Our internal control over financial reporting is a process designed by, or under the supervision of, our Chairman and Interim President and Chief Executive Officer and our Senior Executive Vice President and Chief Financial Officer, and Treasurer, and effected by the Company’sour board of directors, management and other personnel to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.
 
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with policies or procedures may deteriorate.
 
Our management assessed the effectiveness of our internal control over financial reporting as of December 31, 2017.2023. In making this assessment, management used the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in the updated Internal Control — Integrated Framework issued in 2013. We acquired three entities during 2017, and Based on that assessment, our management excluded from its assessmentconcluded that, as of theDecember 31, 2023, our internal control over financial reporting was effective.
The effectiveness of the Company’sour internal control over financial reporting as of December 31, 2017, these entities’ internal control over financial reporting associated with total assets of 4.0% and total revenues of 2.6% included in the consolidated financial statements of the Company as of and for the year ended December 31, 2017. Based on that assessment, excluding the three entities acquired during 2017 as noted above, our management concluded that, as of December 31, 2017, our internal control over financial reporting was effective.
The effectiveness of the Company’s internal control over financial reporting as of December 31, 2017,2023, has been audited by KPMGPricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report which appears herein.

Changes in Internal Control over Financial Reporting
 
There havehas been no changeschange in our internal control over financial reporting during the yearquarter ended December 31, 20172023, that has materially affected, or areis reasonably likely to materially affect, our internal control over financial reporting.


Item 9B.   Other InformationOTHER INFORMATION
 

None.During the three months ended December 31, 2023, none of the Company’s directors or officers (as defined in Rule 16a-1(f) of the Exchange Act) adopted, terminated or modified a Rule 10b5-1 trading arrangement or non-Rule 10b5-1 trading arrangement (as such terms are defined in Item 408 of Regulation S-K of the Securities Act). During the three months ended December 31, 2023, the Company did not adopt, terminate or modify a Rule 10b5-1 trading arrangement.
 
Item 9C.   DISCLOSURE REGARDING FOREIGN JURISDICTION THAT PREVENT INSPECTIONS
Not applicable.
PART III
 
ITEM 10.   DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE
 
Directors
The information required by Item 10 is incorporated herein by reference toCertain of the information to be included in our definitive proxy statement related to the 2018 annual shareholders meeting. The information concerning our executive officers required by this Item 10 is provided under the caption “Executive Officers of the Registrant”Officers” in Part I of this Annual Report. The remaining information required by Item 10 is incorporated herein by reference to the relevant information to be included in our definitive proxy statement related to our 2024 annual meeting of stockholders.
 
ITEM 11.   EXECUTIVE COMPENSATION
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Table of Contents
 
The information required by Item 11 is incorporated by reference to the relevant information to be included in our definitive proxy statement related to the 20182024 annual shareholders meeting.meeting of stockholders.
 
ITEM 12.   SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS
 
The information required by Item 12 regarding Security Ownership of Certain Beneficial Owners and Management and Related Stockholders is incorporated by reference to the relevant information to be included in our definitive proxy statement related to the 20182024 annual meeting of shareholders.stockholders.


Equity Compensation Plan Information
The following table provides certain information as of December 31, 2017 concerning the shares of our common stock that may be issued under existing equity compensation plans.
Plan Category 
Number of Securities
to be Issued Upon
Exercise of
Outstanding Options
 
Weighted Average
Exercise Price of
Outstanding Options
 
Number of Securities
Remaining Available for
Future Issuance Under
Equity Compensation Plans
  (in thousands, except exercise price data)
Equity Compensation Plans Approved by Security Holders (1) 2,130
 $13.43
 1,438
       
Equity Compensation Plans Not Approved by Security Holders 
 
 
       
Total 2,130
 $13.43
 1,438

(1)Includes all the Company’s plans: 2007 Stock Option Plan, 2009 Long-Term Incentive Plan and 2016 Long-Term Incentive Plan.

ITEM 13.   CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE
 
The information required by Item 13 is incorporated by reference to the relevant information to be included in our definitive proxy statement related to the 20182024 annual shareholders meeting.meeting of stockholders.
 
ITEM 14.   PRINCIPAL ACCOUNTANT FEES AND SERVICES
 
The information required by Item 14 is incorporated by reference to the information to be included in our definitive proxy statement related to the 20182024 annual shareholders meeting.meeting of stockholders.
 
PART IV
 


ITEM 15.   EXHIBITS AND FINANCIAL STATEMENT SCHEDULES
 
(1) The following financial statements are filed herewith in Item 8 of Part II above:
Page
50
51
52
53
54
55
56
 
(2)Financial Statement Schedules
 
All other schedules are omitted because of the absence of conditions under which they are required or because the required information is given in the financial statements or notes thereto.

(3)Exhibits
Exhibit No.Description
Exhibit No.3.1Description
2.1
3.1
3.2
3.2
3.3
3.3
4.1
4.1
10.1
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Table of Contents
10.210.1
10.2
10.3*
10.3
10.4
10.4

10.5
10.6
10.7
10.8
10.9
10.10
10.11
10.12
10.13
10.14
10.15
10.16
10.5
10.1710.6
10.7
10.8
10.9
10.18
10.10*
10.19*10.11
10.12
10.13
10.14
21.1*10.15
10.16*
10.17
10.18*
10.19
19.1*
21.1*
23.1*
23.1*23.2*
24.1*
24.1*
31.1*
31.1*
31.2*
31.2*
32.1**
32.1**
32.2**
32.2**

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Table of Contents
97.1*
101.INS
101.INSXBRL Instance Document
101.SCH
101.SCHXBRL Schema Document
101.CAL
101.CALXBRL Calculation Linkbase Document
101.LAB
101.LABXBRL Labels Linkbase Document
101.PRE
101.PREXBRL Presentation Linkbase Document
101.DEF
101.DEFXBRL Definition Linkbase Document
_______________________
Exhibits 10.710.3 to 10.19 are management contracts or compensatory plans, contracts, or arrangements.
* Filed herewith.
** Furnished herewith.













ITEM 16.   FORM 10-K SUMMARY


None.

85


SIGNATURES
 
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
MISTRAS GROUP, INC.
By:/s/ Dennis BertolottiManuel N. Stamatakis
Dennis BertolottiManuel N. Stamatakis
Chairman and Interim President and Chief Executive Officer
 
Date: March 14, 201811, 2024
 
We, the undersigned directors and officers of Mistras Group, Inc., hereby severally constitute Dennis Bertolotti,Manuel N. Stamatakis, Edward J. Prajzner and Michael C. Keefe, and each of them singly, as our true and lawful attorneys with full power to each of them to sign for us, in our names in the capacities indicated below, any and all amendments to this Annual Report on Form 10-K filed with the Securities and Exchange Commission.
 
This power of attorney may only be revoked by a written document executed by the undersigned that expressly revokes this power by referring to the date and subject hereof.
 
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrantregistrant and in the capacities and on the dates indicated.

SignatureTitleDate
Signature/s/ Manuel N. StamatakisTitleDate
/s/Dr. Sotirios J. VahaviolosExecutive Chairman and DirectorMarch 14, 2018
Dr. Sotirios J. Vahaviolos
/s/Dennis Bertolotti
Chairman, Interim President, Chief Executive Officer, and Director (Principal Executive Officer)
March 14, 201811, 2024
Dennis BertolottiManuel N. Stamatakis
/s/ Edward J. Prajzner
Senior Executive Vice President, and Chief Financial Officer and Treasurer (Principal Financial Officer and
Principal Accounting Officer)
March 14, 201811, 2024
Edward J. Prajzner
/s/ Dr. Sotirios J. VahaviolosChairman EmeritusMarch 11, 2024
Sotirios J. Vahaviolos
/s/ Nicholas DeBenedictisDirectorMarch 11, 2024
Nicholas DeBenedictis
/s/ James J. ForeseDirectorMarch 14, 201811, 2024
James J. Forese
/s/ Richard H. GlantonDirectorMarch 14, 201811, 2024
Richard H. Glanton
/s/ Nicholas DeBenedictisMichelle J. LohmeierDirectorMarch 14, 201811, 2024
Nicholas DeBenedictisMichelle J. Lohmeier
/s/ Charles P. PizziDirectorMarch 11, 2024
/s/ Michael J. LangeCharles P. PizziDirectorMarch 14, 2018
Michael J. Lange
/s/ Manuel N. StamatakisDirectorMarch 14, 2018
Manuel N. Stamatakis
/s/ W. Curtis WeldonDirectorMarch 14, 2018
W. Curtis Weldon


93