UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF
THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year endedDecember 31, 201630, 2017Commission file number 1–6770

MUELLER INDUSTRIES, INC.
(Exact name of registrant as specified in its charter)

Delaware
Delaware25-0790410
(State or other jurisdiction(I.R.S. Employer
of incorporation or organization)(I.R.S. Employer Identification No.)

8285 Tournament Drive, Suite 150 
Memphis, Tennessee
38125
(Address of principal executive offices)(Zip Code)

Registrant'sRegistrant’s telephone number, including area code: (901) 753-3200

Securities registered pursuant to Section 12(b) of the Act:

Title of each class
Name of each exchange on which registered
Common Stock, $0.01 Par ValueNew York Stock Exchange

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark whether the Registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.  Yes  ☒  No  ☐

Indicate by check mark if the Registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes  ☐  No  ☒

Indicate by a 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  ☒  No ☐

Indicate by check mark whether the Registrant has submitted electronically and posted on its corporate Website, 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  ☒  No ☐

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (Section 229.405 of this chapter) is not contained herein, and will not be contained, to the best of Registrant'sRegistrant’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.  ☒

Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company.  See the definitions of "large“large accelerated filer," "accelerated filer"” “accelerated filer,” “smaller reporting company,” and "smaller reporting company"“emerging growth company” in Rule 12b-2 of the Exchange Act.
Large accelerated filer   ☒Accelerated filer   ☐
Non-accelerated filer   ☐Smaller reporting company   ☐
Emerging growth company   ☐

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. ☐

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Act).  Yes  ☐  No  ☒

The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the Registrant'sRegistrant’s most recently completed second fiscal quarter was $1,795,668,379.$1,698,272,608.

The number of shares of the Registrant'sRegistrant’s common stock outstanding as of February 24, 201723, 2018 was 57,602,563 57,564,175 excluding 22,580,441 22,618,829 treasury shares.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the following document are incorporated by reference into this Report: Registrant'sRegistrant’s Definitive Proxy Statement for the 20172018 Annual Meeting of Stockholders, scheduled to be mailed on or about March 30, 201729, 2018 (Part III).




MUELLER INDUSTRIES, INC.

_____________________

As used in this report, the terms "we," "us," "our," "Company," "Mueller,"“we,” “us,” “our,” “Company,” “Mueller,” and "Registrant"“Registrant” mean Mueller Industries, Inc. and its consolidated subsidiaries taken as a whole, unless the context indicates otherwise.

____________________

TABLE OF CONTENTS


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PART I

ITEM 1.BUSINESS
 
Introduction

Mueller Industries, Inc. (the Company) is a leading manufacturer of copper, brass, aluminum, and plastic products.  The range of these products is broad:  copper tube and fittings; line sets; brass and copper alloy rod, bar, and shapes; aluminum and brass forgings; aluminum impact extrusions; PEX plastic fittings and valves;tube; refrigeration valves and fittings; fabricated tubular products; and steel nipples.  We also resell imported brass and plastic plumbing valves, plastic fittings, malleable iron fittings, faucets, and plumbing specialty products.  Our operations are located throughout the United States and in Canada, Mexico, Great Britain, South Korea, and China.  The Company was incorporated in Delaware on October 3, 1990.

During the first quarter of 2016, we made changes to our management reporting structure as a result of a change in the way the Chief Executive Officer, who serves as the Chief Operating Decision Maker, manages and evaluates the business, makes key operating decisions, and allocates resources.  Previously, we had two reportable segments: Plumbing & Refrigeration and OEM.  During the first quarter, we realigned our operating segments into three reportable segments: Piping Systems, Industrial Metals, and Climate.  The changes to the reporting structure resulted from management's decision to operationally separate certain businesses in order to enhance the level of focus on those businesses.  This included the appointment of separate management teams.  In addition, as a result of several acquisitions, we separated certain businesses with similar characteristics to create the Industrial Metals and Climate segments.  These businesses were previously aggregated within the OEM segment.  Management has recast certain prior year amounts to conform to the current year presentation. Each of theour reportable segments is composed of certain operating segments that are aggregated primarily by the nature of products offered. These are the Piping Systems, Industrial Metals, and Climate segments.

Certain administrative expenses and expenses related primarily to retiree benefits at inactive operations are combined into the Corporate and Eliminations classification.  

Financial information concerning segments and geographic information appears under "NoteNote 3 – Segment Information"Information in the Notes to Consolidated Financial Statements, which is incorporated herein by reference.

New housing starts and commercial construction are important determinants of the Company'sour sales to the heating, ventilation, and air-conditioning (HVAC), refrigeration, and plumbing markets because the principal end use of a significant portion of our products is in the construction of single and multi-family housing and commercial buildings.  Repairs and remodeling projects are also important drivers of underlying demand for these products.  

Piping Systems Segment

The Piping Systems segment is composed of Domestic Piping Systems Group, Canadian Operations,Great Lakes Copper (Great Lakes), Pexcor Manufacturing Company and Heatlink Group Inc. (collectively, Heatlink Group), European Operations, Trading Group, Jiangsu Mueller-Xingrong Copper Industries Limited (Mueller-Xingrong), and Jungwoo Metal Ind. Co., LTD (Jungwoo-Mueller).  

The Domestic Piping Systems Group manufactures copper tube and fittings, plastic fittings, and line sets.  These products are manufactured in the U.S., sold in the U.S., and exported to markets worldwide.  Our copper tube ranges in sizessize from 1/8 inch to 8 1/8 inch diameter and is sold in various straight lengths and coils.  We are a market leader in the air-conditioning and refrigeration service tube markets and we also supply a variety of water tube in straight lengths and coils used for plumbing applications in virtually every type of construction project.  Our copper and plastic fittings, line sets, and related components are produced for the plumbing and heating industry to be used in water distribution systems, heating systems, air-conditioning, and refrigeration applications, and drainage, waste, and vent systems.  

Canadian OperationsGreat Lakes manufactures copper tube and line sets in Canada and sells the products primarily in the U.S. and Canada.  Heatlink Group manufactures a complete line of products for PEX plumbing and radiant systems in Canada and sells these products in Canada and the U.S. European Operations manufactures copper tube in the United Kingdom, which is sold throughout Europe.  The Trading Group manufactures steel pipe nipples and resells imported brass and plastic plumbing valves, malleable iron fittings, faucets, and plumbing specialty products to plumbing wholesalers, distributors to the manufactured housing and recreational vehicle industries, and building materials retailers in North America.
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Mueller-Xingrong, our Chinese joint venture, manufactures engineered copper tube primarily for air-conditioning applications; these products are sold primarily to OEMs located in China. Jungwoo-Mueller, our South Korean joint venture, manufactures copper-based joining products that are sold worldwide.

We acquired Howell Metal Company (Howell) on October 17, 2013, Yorkshire Copper Tube (Yorkshire) on February 28, 2014, Great Lakes Copper (Great Lakes) on July 31, 2015, and a 60 percent equity interest in Jungwoo-Mueller on April 26, 2016.2016, and Heatlink Group on May 31, 2017.  Howell manufactures copper tube and line sets for U.S. distribution, while Yorkshire produces European standard copper distribution tubes.  Great Lakes manufactures copper tube and line sets for distribution in Canada and the U.S.  These acquisitions complement our existing copper tube, line sets, and copper fittings, and plastics businesses in the Piping Systems segment.

We disposed of Mueller Primaflow Limited (Primaflow), our U.K. based plumbing and heating systems import distribution business, on November 21, 2014.  This business was part of European Operations in the Piping Systems segment. We also disposed of

Jiangsu Mueller-Xingrong Copper Industries Limited (Mueller-Xingrong), the Company’s Chinese joint venture, on June 21, 2017. This business manufactured engineered copper tube primarily for air-conditioning applications in China.
 
The segment sells products to wholesalers in the plumbing and refrigeration markets, distributors to the manufactured housing and recreational vehicle industries, building material retailers, and air-conditioning OEMs.original equipment manufacturers (OEMs).  It markets primarily through its own sales and distribution organization, which maintains sales offices and distribution centers throughout the United States and in Canada, Mexico, Europe, China, and South Korea.  Additionally, products are sold and marketed through a complement of agents, which, when combined with our sales organization, provide the Company broad geographic market representation.

The total amount of order backlog for the Piping Systems segment as of December 31, 201630, 2017 was not significant.

We compete with various companies, depending on the product line.  In the U.S. copper tube business, domestic competition includes Cerro Flow Products LLC, Cambridge-Lee Industries LLC (a subsidiary of Industrias Unidas S.A. de C.V.), and Wieland Copper Products LLC, as well as many actual and potential foreign competitors.  In the European copper tube business, we compete with several European-based manufacturers of copper tube as well as other foreign-based manufacturers.  In the Canadian copper tube business, our competitors include foreign-based manufacturers.  In the copper fittings market, our domestic competitors include Elkhart Products Company (a subsidiary of Aalberts Industries N.V.) and NIBCO, Inc.  We also compete with several foreign manufacturers.  Additionally, our copper tube and fittings businesses compete with a large number of manufacturers of substitute products made from other metals and plastic.  The plastic fittings competitors include NIBCO, Inc., Charlotte Pipe & Foundry, and other companies.  

Industrial Metals Segment

The Industrial Metals segment is composed of Brass Rod & Copper Bar Products, Impacts & Micro Gauge, and Brass Value-Added Products.  

Brass Rod & Copper Bar Products manufactures a broad range of brass rod and copper alloy shapes, as well as a wide variety of end products including plumbing brass, valves, and fittings sold primarily to OEMs in the industrial, HVAC, plumbing, and refrigeration industries.  We extrude brass, bronze, and copper alloy rod in sizes ranging from 3/8 inches to 4 inches in diameter.  These alloys are used in applications that require a high degree of machinability, wear and corrosion resistance, as well as electrical conductivity.  

Impacts & Micro Gauge manufactures cold-form aluminum and copper products for automotive, industrial, and recreational components, as well as high-volume machining of aluminum, steel, brass, and cast iron impacts and castings for automotive applications. It sells its products primarily to OEMs in the U.S., serving the automotive, military ordnance, aerospace, and general manufacturing industries.  Typical applications for impacts are high strength ordnance, high-conductivity electrical components, builders'builders’ hardware, hydraulic systems, automotive parts, and other uses where toughness must be combined with varying complexities of design and finish.

Brass Value-Added Products manufactures brass and aluminum forgings; brass, aluminum, and stainless steel valves; fluid control solutions; and gas train assembles. Our forgings are used in a wide variety of products, including automotive components, brass fittings, industrial machinery, valve bodies, gear blanks, and computer hardware.  Our valves, fluid control systems, and gas train assemblesassemblies are used in the compressed gas, pharmaceutical, construction, and gas appliance markets.

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On June 18, 2015, we acquired Sherwood Valve Products, LLC (Sherwood), which manufactures valves and fluid control solutions for the HVAC, refrigeration, and compressed gas markets.  The acquisition of Sherwood complements our existing brass businesses in the Industrial Metals segment.  

The segment sells its products primarily to domestic OEMs in the industrial, construction, HVAC, plumbing, and refrigeration markets.  The total amount of order backlog for the Industrial Metals segment as of December 31, 201630, 2017 was not significant.

Competitors, primarily in the brass rod market, include Chase Brass and Copper Company  LLC, a subsidiary of Global Brass and Copper Holdings, Inc., and others, both domestic and foreign.  

Climate Segment

The Climate segment is composed of Refrigeration Products, Fabricated Tube Products, Westermeyer Industries, Inc. (Westermeyer), and Turbotec Products, Inc. (Turbotec).


Refrigeration Products designs and manufactures valves, protection devices, and brass fittings for various OEMs in the commercial HVAC and refrigeration markets. Fabricated Tube Products manufactures tubular assemblies and fabrications for OEMs in the HVAC and refrigeration markets. Westermeyer designs, manufactures, and distributes high-pressure components and accessories for the air-conditioning and refrigeration markets.  Turbotec manufactures coaxial heat exchangers and twisted tubes for the HVAC, geothermal, refrigeration, swimming pool heat pump, marine, ice machine, commercial boiler, and heat reclamation markets.

We acquired Westermeyer on August 16, 2012 and Turbotec on March 30, 2015.  The acquisitions of Westermeyer and Turbotec complementacquisition complements our existing refrigeration business in the Climate segment.

The segment sells its products primarily to OEMs in the HVAC and refrigeration markets in the U.S.  The total amount of order backlog for the Climate segment as of December 31, 201630, 2017 was not significant.

Labor Relations

At December 31, 2016,30, 2017, the Company employed approximately 4,2444,125 employees, of which approximately 1,6161,678 were represented by various unions.  Those union contracts will expire as follows:

Location
LocationExpiration Date
Port Huron, Michigan (Local 119 SPFPA)April 1, 2018
Wynne, ArkansasJune 28, 2018
North Wales, PennsylvaniaJuly 31, 2018
Belding, MichiganSeptember 14, 2018
Fulton, MississippiSeptember 30, 2018
Waynesboro, TennesseeNovember 2, 2018
Port Huron, Michigan (Local 218 IAM)May 5, 2019
Port Huron, Michigan (Local 44 UAW)July 21, 2019
Port Huron, Michigan (Local 119 SPFPA)April 1, 2018
Belding, MichiganSeptember 14, 2018
Wynne, ArkansasJune 28, 2018
Fulton, MississippiSeptember 30, 2018
North Wales, PennsylvaniaJuly 31, 2018
Washington, PennsylvaniaJuly 25, 2017
Waynesboro, TennesseeNovember 2, 2018

The union agreements at the Company'sCompany’s U.K. and Mexico operations are renewed annually.  The Company expects to renew its union contracts without material disruption ofto its operations.

Raw Material and Energy Availability

A substantial portion of our base metal requirements (primarily copper) is normally obtained through short-term supply contracts with competitive pricing provisions (for cathode) and the open market (for scrap).  Other raw materials used in the production of brass, including brass scrap, zinc, tin, and lead are obtained from zinc and lead producers, open-market dealers, and customers with brass process scrap.  Raw materials used in the fabrication of aluminum and plastic products are purchased in the open market from major producers.

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Adequate supplies of raw material have historically been available to us from primary producers, metal brokers, and scrap dealers.  Sufficient energy in the form of natural gas, fuel oils, and electricity is available to operate our production facilities.  While temporary shortages of raw material and fuels may occur occasionally, to date they have not materially hampered our operations.

Our copper tube facilities can accommodate both refined copper and certain grades of copper scrap as the primary feedstock.  The Company has commitments from refined copper producers for a portion of its metal requirements for 2017.2018.  Adequate quantities of copper are currently available.  While we will continue to react to market developments, resulting pricing volatility or supply disruptions, if any, could nonetheless adversely affect the Company.

Environmental Proceedings

Compliance with environmental laws and regulations is a matter of high priority for the Company.  Mueller'sMueller’s provision for environmental matters related to all properties was $7.5 million for 2017, $0.9 million for 2016, and $0.1 million for 2015, and $1.2 million for 2014.2015.  The reserve for environmental matters was $28.0 million at December 30, 2017 and $21.9 million at December 31, 2016 and $21.7 million at December 26, 2015.2016.  Environmental costsexpenses related to non-operating properties are classified as a componentpresented below operating income in the Consolidated Statements of other income, netIncome, and costs related to operating properties are included in cost of goods sold.  We do not currently anticipate that we will need to make material expenditures of approximately $8.6 million for compliance activities related to existing environmental matters during the next three fiscal years.


For a description of material pending environmental proceedings, see "NoteNote 13 – Commitments and Contingencies"Contingencies in the Notes to Consolidated Financial Statements, which is incorporated herein by reference.

Other Business Factors

Our business is not materially dependent on patents, trademarks, licenses, franchises, or concessions held.  In addition, expenditures for Company-sponsored research and development activities were not material during 2017, 2016, 2015, or 2014.2015.  No material portion of our business involves governmental contracts.  Seasonality of the Company'sCompany’s sales is not significant.

SEC Filings

We make available through our internet website our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Exchange Act as soon as reasonably practicable after we electronically file such material with, or furnish it to, the Securities and Exchange Commission (SEC).  To retrieve any of this information, you may access our internet home page at www.muellerindustries.com, select Investors, and then select SEC Filings.


ITEM 1A.RISK FACTORS

The Company is exposed to risk as it operates its businesses.  To provide a framework to understand our operating environment, we are providing a brief explanation of the more significant risks associated with our businesses.  Although we have tried to identify and discuss key risk factors, others could emerge in the future.  These risk factors should be considered carefully when evaluating the Company and its businesses.

Increases in costs and the availability of energy and raw materials used in our products could impact our cost of goods sold and our distribution expenses, which could have a material adverse impact on our operating margins.

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Both the costs of raw materials used in our manufactured products (copper, brass, zinc, aluminum, and PVC and ABS resins) and energy costs (electricity, natural gas and fuel) have been volatile during the last several years, which has resulted in changes in production and distribution costs.  For example, recent and pending climate change regulation and initiatives on the state, regional, federal, and international levels that have focused on reducing greenhouse gas (GHG) emissions from the energy and utility sectors may affect energy availability and costs in the near future.  While we typically attempt to pass costs through to our customers or to modify or adapt our activities to mitigate the impact of increases, we may not be able to do so successfully.  Failure to fully pass increases to our customers or to modify or adapt our activities to mitigate the impact could have a material adverse impact on our operating margins.  Additionally, if we are for any reason unable to obtain raw materials or energy, our ability to manufacture our products would be impacted, which could have a material adverse impact on our operating margins.

The unplanned departure of key personnel could disrupt our business.

We depend on the continued efforts of our senior management.  The unplanned loss of key personnel, or the inability to hire and retain qualified executives, could negatively impact our ability to manage our business.

Economic conditions in the housing and commercial construction industries, as well as changes in interest rates, could have a material adverse impact on our business, financial condition, and results of operations.

Our business is sensitive to changes in general economic conditions, particularly in the housing and commercial construction industries.  Prices for our products are affected by overall supply and demand in the market for our products and for our competitors'competitors’ products.  In particular, market prices of building products historically have been volatile and cyclical, and we may be unable to control the timing and extent of pricing changes for our products.  Prolonged periods of weak demand or excess supply in any of our businesses could negatively affect our revenues and margins and could result in a material adverse impact on our business, financial condition, and results of operations.

The markets that we serve, including, in particular, the housing and commercial construction industries, are significantly affected by movements in interest rates and the availability of credit.  Significantly higher interest rates could have a material adverse effect on our business, financial condition, and results of operations.  Our businesses are also affected by a variety of other factors beyond our control, including, but not limited to, employment levels, foreign currency exchange rates, unforeseen inflationary pressures, and consumer confidence.  Since we operate in a variety of geographic areas, our businesses are subject to the economic conditions

in each such area.  General economic downturns or localized downturns in the regions where we have operations could have a material adverse effect on our business, financial condition, and results of operations.

The impact of economic conditions on the operations or liquidity of any party with which we conduct our business, including our suppliers and customers, may adversely impact our business.
 
Competitive conditions, including the impact of imports and substitute products and technologies, could have a material adverse effect on the demand for our products as well as our margins and profitability.

The markets we serve are competitive across all product lines.  Some consolidation of customers has occurred and may continue, which could shift buying power to customers.  In some cases, customers have moved production to low-cost countries such as China, or sourced components from there, which has reduced demand in North America for some of the products we manufacture.  These conditions could have a material adverse impact on our ability to maintain margins and profitability.  The potential threat of imports and substitute products is based upon many factors, including raw material prices, distribution costs, foreign exchange rates, production costs, and the development of emerging technologies and applications.  The end use of alternative import and/or substitute products could have a material adverse effect on our business, financial condition, and results of operations.  Likewise, the development of new technologies and applications could result in lower demand for our products and have a material adverse effect on our business.

Our exposure to exchange rate fluctuations on cross border transactions and the translation of local currency results into U.S. dollars could have an adverse impact on our results of operations or financial position.

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We conduct our business through subsidiaries in several different countries and export our products to many countries.  Fluctuations in currency exchange rates could have a significant impact on the competitiveness of our products as well as the reported results of our operations, which are presented in U.S. dollars.  A portion of our products are manufactured in or acquired from suppliers located in lower cost regions.  Cross border transactions, both with external parties and intercompany relationships, result in increased exposure to foreign exchange fluctuations.  The strengthening of the U.S. dollar could expose our U.S. based businesses to competitive threats from lower cost producers in other countries such as China.  Lastly, our sales are translated into U.S. dollars for reporting purposes.  The strengthening of the U.S. dollar could result in unfavorable translation effects when the results of foreign operations are translated into U.S. dollars.  Accordingly, significant changes in exchange rates, particularly the British pound sterling, Mexican peso, Canadian dollar, South Korean won, and Chinese renminbi, could have an adverse impact on our results of operations or financial position.

The vote by the United Kingdom (U.K.) to leave the European Union (EU) could adversely affect us.
The
Through a June 2016 U.K. referendum on its membership in the EU, resulted in a majority of U.K. voters votingvoted to exit the EU ("Brexit")(Brexit).  As a result, we face risks associated with the potential uncertainty and consequences that may follow Brexit, including with respect to volatility in exchange rates and interest rates and disruptions affecting our relationships with our existing and future customers, suppliers and employees.  Brexit could adversely affect European or worldwide political, regulatory, economic or market conditions and could contribute to instability in global political institutions, regulatory agencies and financial markets.  Any of these effects of Brexit, and others we cannot anticipate, could adversely affect our business, results of operations and financial condition.

We are subject to claims, litigation, and regulatory proceedings that could have a material adverse effect on us.

We are, from time-to-time, involved in various claims, litigation matters, and regulatory proceedings.  These matters may include contract disputes, personal injury claims, environmental claims and administrative actions, Occupational Safety and Health Administration inspections or proceedings, other tort claims, employment and tax matters and other litigation including class actions that arise in the ordinary course of our business.  Although we intend to defend these matters vigorously, we cannot predict with certainty the outcome or effect of any claim or other litigation matter, and there can be no assurance as to the ultimate outcome of any litigation or regulatory proceeding.  Litigation and regulatory proceedings may have a material adverse effect on us because of potential adverse outcomes, defense costs, the diversion of our management'smanagement’s resources, availability of insurance coverage and other factors.

A strike, other work stoppage or business interruption, or our inability to renew collective bargaining agreements on favorable terms, could impact our cost structure and our ability to operate our facilities and produce our products, which could have an adverse effect on our results of operations.

AsWe have a number of December 31, 2016, approximately 1,616 of our 4,244 employees werewho are covered by collective bargaining or similar agreements.  If we are unable to negotiate acceptable new agreements with the unions representing our employees upon expiration of existing contracts, we could experience

strikes or other work stoppages.  Strikes or other work stoppages could cause a significant disruption of operations at our facilities, which could have an adverse impact on us.  New or renewal agreements with unions representing our employees could call for higher wages or benefits paid to union members, which would increase our operating costs and could adversely affect our profitability.  Higher costs and/or limitations on our ability to operate our facilities and manufacture our products resulting from increased labor costs, strikes or other work stoppages could have a material adverse effect on our results of operations.
   
In addition, unexpected interruptions in our operations or those of our customers or suppliers due to such causes as weather-related events or acts of God, such as earthquakes, could have an adverse effect on our results of operations.  For example, the Environmental Protection Agency has found that global climate change would be expected to increase the severity and possibly the frequency of severe weather patterns such as hurricanes.  Although the financial impact of such future events is not reasonably estimable at this time, should they occur, our operations in certain coastal and flood-prone areas or operations of our customers and suppliers could be adversely affected.

We are subject to environmental, health, and safety laws and regulations and future compliance may have a material adverse effect on our results of operations, financial position, or cash flows.

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The nature of our operations exposes us to the risk of liabilities and claims with respect to environmental, health, and safety matters.  While we have established accruals intended to cover the cost of environmental remediation at contaminated sites, the actual cost is difficult to determine and may exceed our estimated reserves.  Further, changes to, or more rigorous enforcement or stringent interpretation of environmental or health and safety laws could require significant incremental costs to maintain compliance.  Recent and pending climate change regulation and initiatives on the state, regional, federal, and international levels may require certain of our facilities to reduce GHG emissions.  While not reasonably estimable at this time, this could require capital expenditures for environmental control facilities and/or the purchase of GHG emissions credits in the coming years.  In addition, with respect to environmental matters, future claims may be asserted against us for, among other things, past acts or omissions at locations operated by predecessor entities, or alleging damage or injury or seeking other relief in connection with environmental matters associated with our operations.  Future liabilities, claims, and compliance costs may have a material adverse effect on us because of potential adverse outcomes, defense costs, diversion of our resources, availability of insurance coverage, and other factors.  The overall impact of these requirements on our operations could increase our costs and diminish our ability to compete with products that are produced in countries without such rigorous standards; the long run impact could negatively impact our results and have a material adverse effect on our business.

If we do not successfully execute or effectively operate, integrate, leverage and grow acquired businesses, our financial results may suffer.

Our strategy for long-term growth, productivity and profitability depends in part on our ability to make prudent strategic acquisitions and to realize the benefits we expect when we make those acquisitions. In furtherance of this strategy, over the past several years, we have acquired businesses in Europe, Canada, South Korea, and the United States.
While we currently anticipate that our past and future acquisitions will enhance our value proposition to customers and improve our long-term profitability, there can be no assurance that we will realize our expectations within the time frame we have established, if at all, or that we can continue to support the value we allocate to these acquired businesses, including their goodwill or other intangible assets.

We are subject to risks associated with changes in tax laws and regulations.

We are a large corporation with operations in the U.S. and other jurisdictions. On December 22, 2017, the U.S. government enacted the Tax Cuts and Jobs Act (the Act). The overall effect of U.S. Tax Reform may be positive for Mueller, however, there are certain changes that may have adverse effects for Mueller. While the Act reduces the U.S. federal corporate tax rate from 35 percent to 21 percent, it also requires companies to pay a one-time transition tax on the accumulated earnings of certain foreign subsidiaries, and creates new taxes on certain foreign sourced earnings. At December 30, 2017, the Company has not completed its accounting for the tax effects of enactment of the Act. However, the Company has made a reasonable estimate of the one-time transition tax on accumulated foreign earnings as well as the impact of the Act on its existing deferred tax balances. The final transition impacts of the Act may differ from the estimates provided elsewhere in this Annual Report, possibly materially, due to, among other things, changes in interpretations of the Act, any legislative action to address questions that arise because of the Act, any changes in accounting standards for income taxes or related interpretations in response to the Act, or any updates or changes to estimates we have used to calculate the transition impacts. Any changes in enacted tax laws (such as the recent U.S. tax legislation), rules or regulatory or judicial interpretations, any adverse outcome in connection with tax audits in any jurisdiction, or any change in the pronouncements relating to accounting for income taxes could materially and adversely impact our financial condition and results of operations.


We may be subject to risks relating to our information technology systems.

We rely on information technology systems to process, transmit and store electronic information and manage and operate our business. A breach in cyber securitycould expose us, our customers, our suppliers and our employees to risks of misuse of confidential information. A breach could also result in manipulation and destruction of data, production downtimes and operations disruptions, which in turn could adversely affect our reputation, competitive position, business or results of operations.

ITEM 1B.UNRESOLVED STAFF COMMENTS

None.


ITEM 2.PROPERTIES

Information pertaining to our major operating facilities is included below.  Except as noted, we own all of the principal properties.  In addition, we own and/or lease other properties used as distribution centers and corporate offices.  Our plants are in satisfactory condition and are suitable for the purpose for which they were designed and are now being used.

Location of Facility Building Space (Sq. Ft.) Primary Use Owned or Leased
 
  
Piping Systems Segment
Fulton, MS 649,500724,300 Manufacturing, Packaging, & PackagingDistribution 579,500 Owned; 70,000 LeasedOwned
New Market, VA 413,120 Manufacturing & Distribution Owned
Wynne, AR 400,000 Manufacturing & Distribution Owned
Ontario, CA211,000Manufacturing & DistributionLeased
Ansonia, CT 89,396 Manufacturing & Distribution Owned
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Location of FacilityBuilding Space (Sq. Ft.)Primary UseOwned or Leased
Piping Systems Segment (cont.)
Covington, TN 159,500 Manufacturing Owned
Phoenix, AZ 61,000 Manufacturing Leased
Lawrenceville, GA 56,000 Manufacturing Leased
North Wales, PA 174,000 Manufacturing Owned
Cedar City, UT 260,000 Manufacturing & Distribution Owned
Bilston, England 402,500 Manufacturing Owned
London, Ontario, Canada 200,400 Manufacturing Leased
Calgary, Alberta, Canada 20,000ManufacturingLeased
Calgary, Alberta, Canada21,117ManufacturingLeased
Calgary, Alberta, Canada6,600ManufacturingLeased
Monterrey, Mexico 152,000 Manufacturing Leased
Jintan City, Jiangsu Province,
China
322,580ManufacturingOwned
Yangju City, Gyeonggi Province,
South Korea
 343,909 Manufacturing Owned
       
Industrial Metals Segment
 
Port Huron, MI 450,000 Manufacturing Owned
Belding, MI 293,068 Manufacturing Owned
Brighton, MI 65,000 Machining Leased
Marysville, MI 81,500 Manufacturing Owned
Brooklyn, OH 75,000 Manufacturing Leased
Valley View, OH 65,400 Manufacturing & Distribution Leased
Middleton,Middletown, OH 55,000 Manufacturing Owned
Washington, PA108,275ManufacturingOwned
Waynesboro, TN 57,000 Manufacturing Leased
       
Climate Segment
      
Hartsville, TN 78,000 Manufacturing Owned
Carthage, TN 67,520 Manufacturing Owned
Bluffs, IL 107,000 Manufacturing Owned
Gordonsville, TN 54,000 Manufacturing Leased
Bloomfield, CT26,900ManufacturingLeased
Carrolton,Carrollton, TX 9,230 Manufacturing Leased
Hickory, NC 100,000 Manufacturing Owned
Guadalupe, Mexico 130,110 Manufacturing Leased
Xinbei District, Changzhou,
China
 33,940 Manufacturing Leased


ITEM 3.
LEGAL PROCEEDINGS

The Company is involved in certain litigation as a result of claims that arose in the ordinary course of business.  Additionally, we may realize the benefit of certain legal claims and litigation in the future; these gain contingencies are not recognized in the Consolidated Financial Statements.

For a description of material pending legal proceedings, see "NoteNote 13 – Commitments and Contingencies"Contingencies in the Notes to Consolidated Financial Statements, which is incorporated herein by reference.

10

ITEM 4.MINE SAFETY DISCLOSURES

Not applicable.


ITEM 4.
MINE SAFETY DISCLOSURES

Not applicable.


PART II

ITEM 5.MARKET FOR REGISTRANT'SREGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

Our common stock is listed on the New York Stock Exchange (NYSE) under the symbol "MLI."“MLI.”  As of February 24, 2017,23, 2018, the number of holders of record of Mueller'sMueller’s common stock was 770.740.  The following table sets forth, for the periods indicated, the high and low sales prices as reported by the NYSE and the cash dividends paid per share of common stock.

  Sales Prices    
  High  Low  Dividend 
2016         
          
Fourth quarter $41.27  $29.52  $0.100 
Third quarter  35.52   31.38   0.100 
Second quarter  32.74   28.01   0.100 
First quarter  29.86   23.09   0.075 
             
2015            
             
Fourth quarter $33.04  $26.86  $0.075 
Third quarter  35.65   28.94   0.075 
Second quarter  37.18   34.57   0.075 
First quarter  36.47   31.34   0.075 
  Sales Prices   
  High Low Dividend 
2017       
        
Fourth quarter $37.53
 $32.88
 $0.100
 
Third quarter 35.02
 28.49
 0.100
 
Second quarter 35.82
 27.72
 0.100
 
First quarter 43.96
(1)30.93
 3.100
(2)
2016  
  
  
 
        
Fourth quarter $41.27
 $29.52
 $0.100
 
Third quarter 35.52
 31.38
 0.100
 
Second quarter 32.74
 28.01
 0.100
 
First quarter 29.86
 23.09
 0.075
 

(1) On March 9, 2017, the Company distributed a special dividend of $3.00 in cash and $5.00 in principal amount of the Company’s 6% Subordinated Debentures per share of outstanding common stock, which resulted in a commensurate decrease in sales price per share.
(2) Does not include the $5.00 in principal amount of the Company’s 6% Subordinated Debentures per share of outstanding common stock issued as part of our special dividend.

Payment of dividends in the future is dependent upon the Company'sCompany’s financial condition, cash flows, capital requirements, earnings, and other factors.


















11


Issuer Purchases of Equity Securities

The Company'sCompany’s Board of Directors has extended, until October 2017,August 2018, the authorization to repurchase up to 20 million shares of the Company'sCompany’s common stock through open market transactions or through privately negotiated transactions.  The Company has no obligation to purchase any shares and may cancel, suspend, or extend the time period for the purchase of shares at any time.  Any purchases will be funded primarily through existing cash and cash from operations.  The Company may hold any shares purchased in treasury or use a portion of the repurchased shares for its stock-based compensation plans, as well as for other corporate purposes.  From its initial authorization in 1999 through December 31, 2016,30, 2017, the Company had repurchased approximately 4.7 million shares under this authorization.  Below is a summary of the Company'sCompany’s stock repurchases for the quarter ended December 31, 2016.

  (a)    (b)  (c)  (d)   
  Total Number of Shares Purchased    Average Price Paid per Share  Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs  Maximum Number of Shares That May Yet Be Purchased Under the Plans or Programs   
              15,287,060 (1)
  October 2 – October 29, 2016      $          
                     
  October 30 – November 26, 2016                 
                     
  November 27 – December 31, 2016  17,036 (2)  37.93          
                     
 (1)  Shares available to be purchased under the Company's 20 million share repurchase authorization until October 2017. The extension of the authorization was announced on October 27, 2016.
 
  
 (2)  Shares tendered to the Company by holders of stock-based awards in payment of purchase price and/or withholding taxes upon exercise and/or vesting. Also includes shares resulting from restricted stock forfeitures. 

















30, 2017.

  
(a)
Total Number of Shares Purchased (1)
 
(b)
Average Price Paid per Share
 
(c)
Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs
 
(d)
Maximum Number of Shares That May Yet Be Purchased Under the Plans or Programs (2)
         
October 1 – October 28, 2017 753
 $28.53
 
 15,287,060
October 29 – November 25, 2017 1,842
 33.90
 
 15,287,060
November 26 – December 30, 2017 1,915
 29.30
 
 15,287,060
Total 4,510
   
  
12(1)  Shares tendered to the Company by holders of stock-based awards in payment of purchase price and/or withholding taxes upon exercise and/or vesting. Also includes shares resulting from restricted stock forfeitures at the average cost of treasury stock.

(2) Shares available to be purchased under the Company’s 20 million share repurchase authorization until August 2018. The extension of the authorization was announced on October 25, 2017.



Company Stock Performance

The following graph compares total stockholder return since December 31, 201129, 2012 to the Dow Jones U.S. Total Return Index (Total Return Index) and the Dow Jones U.S. Building Materials & Fixtures Index (Building Materials Index).  Total return values for the Total Return Index, the Building Materials Index and the Company were calculated based on cumulative total return values assuming reinvestment of dividends.(i) regular quarterly dividends paid by the Company, (ii) the cash paid by the Company in conjunction with the special dividend and (iii) the proceeds of an assumed sale at par of the Debentures paid by the Company in connection with the special dividend.  

       
  2011  2012  2013  2014  2015  2016 
Mueller Industries, Inc.  100.00   129.43   166.33   183.01   151.28   218.39 
Dow Jones U.S. Total Return Index  100.00   116.32   154.68   174.71   175.81   197.35 
Dow Jones U.S. Building Materials & Fixtures Index  100.00   152.21   195.14   215.75   246.75   292.28 
13

  2012 2013 2014 2015 2016 2017
Mueller Industries, Inc. 100.00
 128.51
 141.40
 116.88
 168.73
 187.92
Dow Jones U.S. Total Return Index 100.00
 132.97
 150.19
 151.14
 169.65
 206.12
Dow Jones U.S. Building Materials & Fixtures Index 100.00
 128.20
 141.74
 162.11
 192.02
 226.29


ITEM 6.SELECTED FINANCIAL DATA

(In thousands, except per share data)2016  2015  2014  2013  2012  
                  
For the fiscal year: (1)
               
                  
  Net sales$2,055,622  $2,100,002  $2,364,227  $2,158,541  $2,189,938  
                       
  Operating income 152,713   137,268   153,996   270,937
(5
)
 126,705
(6
)
                       
  Net income attributable to Mueller Industries, Inc. 99,727
(2
)
 87,864
(3
)
 101,560
(4
)
 172,600   82,395  
                       
  
Diluted earnings per share (8)
 1.74   1.54   1.79   3.06   1.16
(7
)
                       
  
Cash dividends per share (8)
 0.375   0.30   0.30   0.25   0.2125  
                       
At year-end:                    
                       
  Total assets 1,447,476   1,338,801   1,328,096   1,247,767   1,104,155  
                       
  Long-term debt 213,709   204,250   205,250   206,250   207,300  
                       
                       
 (1)
  Includes activity of acquired businesses from the following purchase dates: Jungwoo Metal Ind. Co., LTD, April 26, 2016;  Great Lakes
  Copper Ltd., July 31, 2015; Sherwood Valve Products, LLC, June 18, 2015; Turbotec Products, Inc., March 30, 2015; Yorkshire Copper
  Tube, February 28, 2014; Howell Metal Company, October 17, 2013; and Westermeyer Industries, Inc., August 16, 2012.
 
     
 (2)  Includes pre-tax impairment charges of $6.8 million on fixed assets. 
     
 (3)
  Includes $15.4 million pre-tax gain from the sale of certain assets, severance charges of $3.4 million and a permanent  
  adjustment to a deferred tax liability of $4.2 million.
 
     
 (4)
  Includes $6.3 million pre-tax gain on sale of assets, reversal of valuation allowance of $5.7 million, and $7.3 million of pre-tax charges
  related to severance.
 
     
 (5)
  Includes $106.3 million pre-tax gain from settlement of insurance claims, $39.8 million pre-tax gain from the sale of the Company's
  Schedule 40 pressure plastic fittings business along with the sale of certain other plastic fittings manufacturing assets, and pre-tax
  impairment charges of $4.3 million primarily related to real property associated with the aforementioned plastics sale transaction.
 
     
 (6)
  Includes deferred recognition of $8.0 million gain from liquidation of LIFO inventory layers, $4.1 million net gain from settlement of
  litigation, $1.5 million gain from settlement of insurance claims, and severance charges of $3.4 million.
 
     
 (7)  Includes the impact of 10.4 million shares repurchased from Leucadia National Corporation in September 2012. 
     
 (8)  Adjusted retroactively to reflect the two-for-one stock split that occurred on March 14, 2014. 
(In thousands, except per share data)2017 2016 2015 2014 2013 
           
For the fiscal year: (1)
          
           
Net sales$2,266,073
 $2,055,622
 $2,100,002
 $2,364,227
 $2,158,541
 
           
Operating income151,957
 152,713
 137,268
 153,996
 270,937
 
           
Net income attributable to Mueller Industries, Inc.85,598
(2)99,727
(3)87,864
(4)101,560
(5)172,600
(6)
           
Diluted earnings per share (7)
1.49
 1.74
 1.54
 1.79
 3.06
 
           
Cash dividends per share (7)
3.40
 0.375
 0.30
 0.30
 0.25
 
           
At year-end:   
  
  
  
 
           
Total assets1,320,173
 1,447,476
 1,338,801
 1,328,096
 1,247,767
 
           
Long-term debt448,592
 213,709
 204,250
 205,250
 206,250
 
           
(1)
Includes activity of acquired businesses from the following purchase dates: Pexcor Manufacturing Company Inc. and Heatlink Group Inc., May 31, 2017; Jungwoo Metal Ind. Co., LTD, April 26, 2016; Great Lakes Copper Ltd., July 31, 2015; Sherwood Valve Products, LLC, June 18, 2015; Turbotec Products, Inc., March 30, 2015; Yorkshire Copper Tube, February 28, 2014; and Howell Metal Company, October 17, 2013.
(2)
Includes interest expense of $13.8 million on the Company’s Subordinated Debentures and pre-tax environmental expense for non-operating properties of $7.3 million.
(3)
Includes pre-tax impairment charges of $6.8 million on fixed assets.
(4)
Includes $15.4 million pre-tax gain from the sale of certain assets, severance charges of $3.4 million and a permanent adjustment to a deferred tax liability of $4.2 million.
(5)
Includes $6.3 million pre-tax gain on sale of assets, reversal of valuation allowance of $5.7 million, and $7.3 million of pre-tax charges related to severance.
(6)
Includes $106.3 million pre-tax gain from settlement of insurance claims, $39.8 million pre-tax gain from the sale of the Company’s Schedule 40 pressure plastic fittings business along with the sale of certain other plastic fittings manufacturing assets, and pre-tax impairment charges of $4.3 million primarily related to real property associated with the aforementioned plastics sale transaction.
(7)
Adjusted retroactively to reflect the two-for-one stock split that occurred on March 14, 2014.


ITEM 7.MANAGEMENT'SMANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Management'sManagement’s discussion and analysis of financial condition and results of operations is contained under the caption "Financial Review"“Financial Review” submitted as a separate section of this Annual Report on Form 10-K commencing on page F-2.F-2.

14

ITEM 7A.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Quantitative and qualitative disclosures about market risk are contained under the caption "Financial Review"“Financial Review” submitted as a separate section of this Annual Report on Form 10-K commencing on page F-2.F-2.


ITEM 8.FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Financial Statements required by this item are contained in a separate section of this Annual Report on Form 10-K commencing on page F-18.F-16.


ITEM 9.CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE
None.

None.
ITEM 9A.CONTROLS AND PROCEDURES
Evaluation of Disclosure Controls and Procedures

The Company maintains disclosure controls and procedures designed to ensure information required to be disclosed in Company reports filed under the Securities Exchange Act of 1934, as amended (the Exchange Act), is recorded, processed, summarized, and reported within the time periods specified in the SEC'sSEC’s rules and forms.  Disclosure controls and procedures are designed to provide reasonable assurance that information required to be disclosed in Company reports filed under the Exchange Act is accumulated and communicated to management, including the Company'sCompany’s Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

The Company'sCompany’s management, with the participation of the Company'sCompany’s Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of the Company'sCompany’s disclosure controls and procedures pursuant to Rule 13a-15(e) of the Exchange Act as of December 31, 2016.30, 2017.  Based on that evaluation, the Company'sCompany’s Chief Executive Officer and Chief Financial Officer have concluded that the Company'sCompany’s disclosure controls and procedures are effective as of December 31, 201630, 2017 to ensure that information required to be disclosed in Company reports filed under the Exchange Act is (i) recorded, processed, summarized and reported within the time periods specified in the SEC rules and forms and (ii) accumulated and communicated to management, including the Company'sCompany’s principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosure.

Management'sManagement’s Report on Internal Control over Financial Reporting

The Company'sCompany’s management is responsible for establishing and maintaining adequate internal control over financial reporting as defined in Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934.Act.  Pursuant to the rules and regulations of the SEC, internal control over financial reporting is a process designed by, or under the supervision of, the Company'sCompany’s principal executive and principal financial officers, and effected by the Company'sCompany’s 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 accounting principles generally accepted in the United States and 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  Company'sCompany’s assets; (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 issuer are being made only in accordance with authorizations of the Company'sCompany’s management and directors; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of the Company'sCompany’s assets that could have a material effect on the financial statements.  Due to inherent limitations, internal control over financial reporting may not prevent or detect misstatements.  Further, because of changes in conditions, effectiveness of internal control over financial reporting may vary over time.
15

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INDEX

The Company acquired a 60 percent equity interest in Jungwoo Metal Ind. Co., LTDPexcor Manufacturing Company Inc. and Heatlink Group Inc. during 20162017 and has excluded this businessthese businesses from management'smanagement’s assessment of internal controls.  The total value of assets for this businessthese businesses at year-end was $49.7$19.8 million, which represents 3.41.5 percent of the Company'sCompany’s consolidated total assets at December 31, 2016.30, 2017.  Net sales from the date of acquisition represents 1.10.6 percent of the consolidated net sales of the Company for 2016.2017.  Operating incomeresults from the date of acquisition represents less than 0.1 percent of the consolidated operating income of the Company for 2016.2017.  Accordingly, thisthese acquired business isbusinesses are not included in the scope of this report.

As required by Rule 13a-15(c) under the Exchange Act, the Company'sCompany’s management, with the participation of the Company'sCompany’s Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of the Company'sCompany’s internal control over financial reporting as of December 31, 201630, 2017 based on the control criteria established in a report entitled Internal Control—Integrated Framework, (2013 Framework) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).  Based on such evaluation, management has concluded that our internal control over financial reporting was effective as of December 31, 2016.30, 2017.


Ernst & Young LLP, the independent registered public accounting firm that audited the Company'sCompany’s financial statements included in this Annual Report on Form 10-K, has issued an attestation report on the Company'sCompany’s internal control over financial reporting, which is included herein.

Changes in Internal Control Over Financial Reporting
There were no changes in the Company'sCompany’s internal control over financial reporting during the Company'sCompany’s fiscal quarter ended December 31, 2016,30, 2017, that have materially affected, or are reasonably likely to materially affect, the Company'sCompany’s internal control over financial reporting.
16


Report of Independent Registered Public Accounting Firm

TheTo the Stockholders and the Board of Directors and Stockholders of Mueller Industries, Inc.

Opinion on Internal Control over Financial Reporting

We have audited Mueller Industries, Inc.'s’s internal control over financial reporting as of December 31, 2016,30, 2017, based on criteria established in Internal Control—IntegratedControl-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 Framework)framework) (the COSO criteria). In our opinion, Mueller Industries, Inc.'s (the Company) maintained, in all material respects, effective internal control over financial reporting as of December 30, 2017, based onthe COSO criteria.

As indicated in the accompanying Management’s Report on Internal Control over Financial Reporting, management’s assessment of and conclusion on the effectiveness of internal control over financial reporting did not include the internal controls of Pexcor Manufacturing Company Inc. and Heatlink Group Inc., which are included in the 2017 consolidated financial statements of the Company and constituted $19.8 million and $17.2 million of total and net assets, respectively, as of December 30, 2017 and $14.5 million and $0.3 million of net sales and operating losses, respectively, for the year then ended. Our audit of internal control over financial reporting of the Company also did not include an evaluation of the internal control over financial reporting of Pexcor Manufacturing Company Inc. and Heatlink Group Inc.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheets of the Company as of December 30, 2017 and December 31, 2016, the related consolidated statements of income, comprehensive income, changes in equity and cash flows for each of the three years in the period ended December 30, 2017, and the related notes and financial statement schedule listed in the Index at Item 15(a) and our report dated February 28, 2018 expressed an unqualified opinion thereon.

Basis for Opinion

The Company’s management is responsible 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'sManagement’s Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the company'sCompany’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the 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 audit in accordance with the standards of the Public Company Accounting Oversight Board (United States).PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects.

Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control Over Financial Reporting

A company'scompany’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'scompany’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'scompany’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.

As indicated in the accompanying Management's Report on Internal Control over Financial Reporting, management's assessment of and conclusion on the effectiveness of internal control over financial reporting did not include the internal controls of Jungwoo Metal Ind. Co., LTD, which is included in the 2016 consolidated financial statements of Mueller Industries, Inc. and constituted $49.7 million and $32.7 million of total and net assets, respectively, as of December 31, 2016, and $22.0 million and $0.2 million of net sales and operating income, respectively, for the year then ended.  Our audit of internal control over financial reporting of Mueller Industries, Inc. also did not include an evaluation of the internal control over financial reporting of Jungwoo Metal Ind. Co., LTD.

In our opinion, Mueller Industries, Inc. maintained, in all material respects, effective internal control over financial reporting as of December 31, 2016, based on the COSO criteria.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheets of Mueller Industries, Inc. as of December 31, 2016 and December 26, 2015, and the related consolidated statements of income, comprehensive income, changes in equity and cash flows for each of the three years in the period ended December 31, 2016 and our report dated March 1, 2017 expressed an unqualified opinion thereon.
    

Memphis, Tennessee 
March 1, 2017February 28, 2018 
17


ITEM 9B.OTHER INFORMATION

None.


PART III

ITEM 10.DIRECTORS, EXECUTIVE OFFICERS, AND CORPORATE GOVERNANCE

The information required by Item 10 is contained under the captions "Ownership“Ownership of Common Stock by Directors and Executive Officers and Information about Director Nominees," "Corporate” “Corporate Governance," "Report” “Report of the Audit Committee of the Board of Directors," and "Section“Section 16(a) Beneficial Ownership Compliance Reporting"Reporting” in the Company'sCompany’s Proxy Statement for its 20172018 Annual Meeting of Stockholders to be filed with the SEC on or about March 30, 2017,29, 2018, which is incorporated herein by reference.

The Company has adopted a Code of Business Conduct and Ethics that applies to its chief executive officer, chief financial officer, and other financial executives.  We have also made the Code of Business Conduct and Ethics available on the Company'sCompany’s website at www.muellerindustries.com.
 

ITEM 11.EXECUTIVE COMPENSATION
 
The information required by Item 11 is contained under the caption "Compensation“Compensation Discussion and Analysis," "Summary” “Summary Compensation Table for 2016," "20162017,” “2017 Grants of Plan Based Awards Table," "Outstanding” “Outstanding Equity Awards at Fiscal 20162017 Year-End," "2016” “2017 Option Exercises and Stock Vested," "Potential” “Potential Payments Upon Termination of Employment or Change in Control as of the End of 2016," "20162017,” “2017 Director Compensation," "Report” “Report of the Compensation Committee of the Board of Directors on Executive Compensation"Compensation” and "Corporate Governance"“Corporate Governance” in the Company'sCompany’s Proxy Statement for its 20172018 Annual Meeting of Stockholders to be filed with the SEC on or about March 30, 2017,29, 2018, which is incorporated herein by reference.

18


ITEM 12.SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS

Equity Compensation Plan Information

The following table discloses information regarding the securities to be issued and the securities remaining available for issuance under the Registrant'sRegistrant’s stock-based incentive plans as of December 31, 201630, 2017 (shares in thousands):

 (a) (b) (c) 
Plan categoryNumber of securities to be issued upon exercise of outstanding options, warrants, and rights Weighted average exercise price of outstanding options, warrants, and rights Number of securities remaining available for future issuance under equity compensation plans (excluding securities reflected in column (a)) 
       
Equity compensation plans approved by security holders  1,034  $21.24   1,017 
             
Equity compensation plans not approved by security holders         
             
Total  1,034  $21.24   1,017 
  (a) (b) (c)
Plan category Number of securities to be issued upon exercise of outstanding options, warrants, and rights Weighted average exercise price of outstanding options, warrants, and rights Number of securities remaining available for future issuance under equity compensation plans (excluding securities reflected in column (a))
       
Equity compensation plans approved by security holders 947
 $22.31
 696
       
Equity compensation plans not approved by security holders 
 
 
       
Total 947
 $22.31
 696
 
Other information required by Item 12 is contained under the captions "Principal Stockholders"“Principal Stockholders” and "Ownership“Ownership of Common Stock by Directors and Executive Officers and Information about Director Nominees"Nominees” in the Company'sCompany’s Proxy Statement for its 2017

2018 Annual Meeting of Stockholders to be filed with the SEC on or about March 30, 2017,29, 2018, which is incorporated herein by reference.


ITEM 13.CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE

The information required by Item 13 is contained under the caption "Corporate Governance"“Corporate Governance” in the Company'sCompany’s Proxy Statement for its 20172018 Annual Meeting of Stockholders to be filed with the SEC on or about March 30, 2017,29, 2018, which is incorporated herein by reference.

ITEM 14.PRINCIPAL ACCOUNTING FEES AND SERVICES
       
The information required by Item 14 is contained under the caption "Appointment“Appointment of Independent Registered Public Accounting Firm"Firm” in the Company'sCompany’s Proxy Statement for its 20172018 Annual Meeting of Stockholders to be filed with the SEC on or about March 30, 2017,29, 2018, which is incorporated herein by reference.

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INDEX

PART IV


ITEM 15.EXHIBITS, FINANCIAL STATEMENT SCHEDULES

(a)The following documents are filed as part of this report:

1.
Financial Statements: the financial statements, notes, and report of independent registered public accounting firm described in Item 8 of this Annual Report on Form 10-K are contained in a separate section of this Annual Report on Form 10-K commencing on page F-1.F-1.

2.
Financial Statement Schedule: the financial statement schedule described in Item 8 of this report is contained in a separate section of this Annual Report on Form 10-K commencing on page F-1.F-1.

3.Exhibits:
Certificate of Incorporation and Bylaws
3.1
3.2
Long-Term Debt Instruments
4.1
4.2
4.3Certain instruments with respect to long-term debt of the Registrant have not been filed as Exhibits to this Report since the total amount of securities authorized under any such instruments does not exceed 10 percent of the total assets of the Registrant and its subsidiaries on a consolidated basis.  The Registrant agrees to furnish a copy of each such instrument upon request of the SEC.
Consulting, Employment, and Compensatory Plan Agreements
10.1
10.2
10.3Letter Agreement with Harvey Karp, dated as of May 11, 2011 (Incorporated herein by reference to Exhibit 10.1 of the Registrant's Current Report on Form 8-K, dated May 16, 2011).
10.4
10.4
10.5
10.6
10.5
20


10.610.7
10.7
10.8
10.8
10.9
10.9
10.10
10.10
10.11
10.11
10.12
10.12
10.13
10.13
10.14
10.15
10.16
10.17
10.18
10.19
Financing Agreements
10.20
10.21
10.15

10.22
10.16
10.23
10.17
10.24
10.18
Other Exhibits
10.19Change in Control Agreement, effective July 26, 2016 by and between the Registrant and Brian K. Barksdale (Incorporated herein by reference to Exhibit 10.3 of the Registrant's Quarterly Report on Form 10-Q, for the period ended July 2, 2016, dated July 28, 2016).
21

10.20Change in Control Agreement, effective July 26, 2016 by and between the Registrant and Daniel R. Corbin (Incorporated herein by reference to Exhibit 10.4 of the Registrant's Quarterly Report on Form 10-Q, for the period ended July 2, 2016, dated July 28, 2016).
10.21Change in Control Agreement, effective July 26, 2016 by and between the Registrant and Jeffrey A. Martin (Incorporated herein by reference to Exhibit 10.5 of the Registrant's Quarterly Report on Form 10-Q, for the period ended July 2, 2016, dated July 28, 2016).
10.22Change in Control Agreement, effective July 26, 2016 by and between the Registrant and Mark Millerchip (Incorporated herein by reference to Exhibit 10.6 of the Registrant's Quarterly Report on Form 10-Q, for the period ended July 2, 2016, dated July 28, 2016).
10.23Change in Control Agreement, effective July 26, 2016 by and between the Registrant and Nicholas W. Moss (Incorporated herein by reference to Exhibit 10.7 of the Registrant's Quarterly Report on Form 10-Q, for the period ended July 2, 2016, dated July 28, 2016).
10.24Change in Control Agreement, effective July 26, 2016 by and between the Registrant and Steffen Sigloch (Incorporated herein by reference to Exhibit 10.8 of the Registrant's Quarterly Report on Form 10-Q, for the period ended July 2, 2016, dated July 28, 2016).
10.25 Change in Control Agreement, effective January 3, 2017 by and between the Registrant and Christopher J. Miritello.
21.0
23.0
31.1
31.2
32.1
32.2
101.CALXBRL Taxonomy Extension Calculation Linkbase
101.DEFXBRL Taxonomy Extension Definition Linkbase 
101.INSXBRL Instance Document
101.LABXBRL Taxonomy Extension Label Linkbase 
101.PREXBRL Presentation Linkbase Document
101.SCHXBRL Taxonomy Extension Schema 


ITEM 16.Form 10-K Summary

None.

22


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, on March 1, 2017.February 28, 2018.

MUELLER INDUSTRIES, INC.

 
/s/Gregory L. Christopher
 
 
Gregory L. Christopher, Chief Executive Officer
(Principal Executive Officer) and Chairman of the Board
 

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 Registrant and in the capacities and on the date indicated.

Signature
Title
SignatureTitleDate
   
/s/Gregory L. Christopher
     Gregory L. Christopher
Chief Executive Officer (Principal Executive Officer) and Chairman of the BoardMarch 1, 2017
February 28, 2018
   
/s/Gary S. Gladstein
Lead Independent DirectorMarch 1, 2017February 28, 2018
Gary S. Gladstein  
   
/s/Paul J. Flaherty
DirectorMarch 1, 2017February 28, 2018
Paul J. Flaherty  
   
/s/Gennaro J. Fulvio
DirectorMarch 1, 2017February 28, 2018
Gennaro J. Fulvio  
   
/s/Scott J. Goldman
DirectorMarch 1, 2017February 28, 2018
Scott J. Goldman  
   
/s/John B. Hansen
DirectorMarch 1, 2017February 28, 2018
John B. Hansen  
   
/s/Terry Hermanson
DirectorMarch 1, 2017February 28, 2018
Terry Hermanson  
 
/s/Charles P. Herzog, Jr.
DirectorFebruary 28, 2018
Charles P. Herzog, Jr.  

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 Registrant and in the capacities and on the date indicated.

 
Signature and Title
Date
   
 
/s/Jeffrey A. Martin
March 1, 2017February 28, 2018
 Jeffrey A. Martin 
 Chief Financial Officer and Treasurer 
 (Principal Financial and Accounting Officer) 
   
 
/s/Anthony J. Steinriede
March 1, 2017February 28, 2018
 Anthony J. Steinriede 
 Vice President – Corporate Controller 


23


MUELLER INDUSTRIES, INC.

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

  
  
 
  
  
 
  
  
  




FINANCIAL STATEMENT SCHEDULE

 
Schedule for the years ended December 30, 2017, December 31, 2016, and December 26, 2015 and December 27, 2014
  

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FINANCIAL REVIEW

The Financial Review section of our Annual Report on Form 10-K consists of the following: Management'sManagement’s Discussion and Analysis of Results of Operations and Financial Condition (MD&A), the Consolidated Financial Statements, and Other Financial Information, all of which include information about our significant accounting policies, practices, and the transactions that impact our financial results.  The following MD&A describes the principal factors affecting the results of operations, liquidity and capital resources, contractual cash obligations, and the critical accounting estimates of the Company.  The discussion in the Financial Review section should be read in conjunction with the other sections of this Annual Report, particularly "ItemItem 1: Business"Business and our other detailed discussion of risk factors included in this MD&A.

OverviewOVERVIEW

We are a leading manufacturer of copper, brass, aluminum, and plastic products.  The range of these products is broad:  copper tube and fittings; line sets; brass and copper alloy rod, bar, and shapes; aluminum and brass forgings; aluminum impact extrusions; PEX plastic fittings and valves;tube; refrigeration valves and fittings; fabricated tubular products; and steel nipples.  We also resell imported brass and plastic plumbing valves, plastic fittings, malleable iron fittings, faucets and plumbing specialty products.  Mueller'sMueller’s operations are located throughout the United States and in Canada, Mexico, Great Britain, South Korea, and China.

During the first quarter of 2016, we made changes to our management reporting structure as a result of a change in the way the Chief Executive Officer, who serves as the Chief Operating Decision Maker, manages and evaluates the business, makes key operating decisions, and allocates resources.  Previously, we had two reportable segments: Plumbing & Refrigeration and OEM.  During the first quarter, we realigned our operating segments into three reportable segments: Piping Systems, Industrial Metals, and Climate.  The changes to the reporting structure resulted from management's decision to operationally separate certain businesses in order to enhance the level of focus on those businesses.  This included the appointment of separate management teams.  In addition, as a result of several acquisitions, we separated certain businesses with similar characteristics to create the Climate and Industrial Metals segments.  These businesses were previously aggregated within the OEM segment.  Management has recast certain prior year amounts to conform to the current year presentation. Each of the reportable segments is composed of certain operating segments that are aggregated primarily by the nature of products offered as follows:

·
Piping Systems:  The Piping Systems segment is composed of Domestic Piping Systems Group, Great Lakes Copper, Heatlink Group, Canadian Operations, European Operations, Trading Group, Mueller-Xingrong (our Chinese joint venture), and Jungwoo-Mueller (our South Korean joint venture).  The Domestic Piping Systems Group manufactures copper tube and fittings, plastic fittings, and line sets.  These products are manufactured in the U.S., sold in the U.S., and exported to markets worldwide. Great Lakes Copper manufactures copper tube and line sets in Canada and sells the products primarily in the U.S. and Canada.  Heatlink Group manufactures a complete line of products for PEX plumbing and radiant systems in Canada and sells these products in Canada and the U.S. European Operations manufacture copper tube in the United Kingdom, which is sold throughout Europe.  The Trading Group manufactures pipe nipples and sources products for import distribution in North America.  Jungwoo-Mueller manufactures copper-based joining products that are sold worldwide.  The Piping Systems segment sells products to wholesalers in the plumbing and refrigeration markets, distributors to the manufactured housing and recreational vehicle industries, building material retailers, and air-conditioning original equipment manufacturers (OEMs).  The Domestic Piping Systems Group manufactures copper tube and fittings,  plastic fittings, and line sets.  These products are manufactured in the U.S., sold in the U.S., and exported to markets worldwide.    The Canadian Operations manufacture copper tube and line sets in Canada and sell the products primarily in the U.S. and Canada. European Operations manufacture copper tube in the United Kingdom, which is sold throughout Europe.  The Trading Group manufactures pipe nipples and sources products for import distribution in North America.  Mueller-Xingrong manufactures engineered copper tube primarily for air-conditioning applications; these products are sold primarily to OEMs located in China.  Jungwoo-Mueller manufactures copper-based joining products that are sold worldwide.  The Piping Systems segment sells products to wholesalers in the plumbing and refrigeration markets, distributors to the manufactured housing and recreational vehicle industries, building material retailers, and air-conditioning OEMs.

·Industrial Metals:  The Industrial Metals segment is composed of Brass Rod & Copper Bar Products, Impacts & Micro Gauge, and Brass Value-Added Products.  The segment manufactures and sells brass and copper alloy rod, bar, and shapes; aluminum and brass forgings; aluminum impact extrusions; and gas valves and assemblies.   The segment manufactures and sells its products primarily to domestic OEMs in the industrial, construction, heating, ventilation, and air-conditioning, plumbing, and refrigeration markets.
The Company disposed of Mueller-Xingrong (the Company’s Chinese joint venture) on June 21, 2017. This business manufactured engineered copper tube primarily for air-conditioning applications in China.

·Climate: The Climate segment is composed of Refrigeration Products, Fabricated Tube Products, Westermeyer, and Turbotec.  The segment manufactures and sells refrigeration valves and fittings and fabricated tubular products.  The segment sells its products primarily to the heating, ventilation, air-conditioning, and refrigeration markets in the U.S.
Industrial Metals:  The Industrial Metals segment is composed of Brass Rod & Copper Bar Products, Impacts & Micro Gauge, and Brass Value-Added Products.  The segment manufactures and sells brass and copper alloy rod, bar, and shapes; aluminum and brass forgings; aluminum impact extrusions; and gas valves and assemblies.   The segment manufactures and sells its products primarily to domestic OEMs in the industrial, transportation, construction, heating, ventilation, and air-conditioning, plumbing, refrigeration, and energy markets.

Climate: The Climate segment is composed of Refrigeration Products, Fabricated Tube Products, Westermeyer, and Turbotec.  The segment manufactures and sells refrigeration valves and fittings, fabricated tubular products, high pressure components, and coaxial heat exchangers.  The segment sells its products primarily to the heating, ventilation, air-conditioning, and refrigeration markets in the U.S.
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New housing starts and commercial construction are important determinants of the Company'sour sales to the heating, ventilation, and air-conditioning, refrigeration, and plumbing markets because the principal end use of a significant portion of our products is in the construction of single and multi-family housing and commercial buildings.  Repairs and remodeling projects are also important drivers of underlying demand for these products.  

Residential construction activity has shown improvement in recent years, but remains at levels below long-term historical averages.  Continued improvement is expected, but may be tempered by continuing low labor participation rates, the pace of household formations, and tighter lending standards.  Per the U.S. Census Bureau, actual housing starts in the U.S. were 1.21.20 million in 2017, which compares to 1.17 million in 2016 which compares to 1.1and 1.11 million in 2015 and 1.0 million in 2014.2015.  Mortgage rates remain at historically low levels, as the average 30-year fixed mortgage rate was approximately 3.99 percent in 2017 and 3.65 percent in 2016 and 3.85 percent in 2015.  

2016.  The private nonresidential construction sector, which includes offices, industrial, health care, and retail projects, has also shown improvement in recent years.  Per the U.S. Census Bureau, the
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value of private nonresidential construction put in place was $420.1$434.8 billion in 2017, $432.1 billion in 2016, $389.9and $401.2 billion in 2015, and $359.7 billion in 2014.2015.  We expect that most of these conditions will continue to improve.

Profitability of certain of our product lines depends upon the "spreads"“spreads” between the cost of raw material and the selling prices of our products.  The open market prices for copper cathode and copper and brass scrap, for example, influence the selling price of copper tube aand brass rod, two principal productproducts manufactured by the Company.  We attempt to minimize the effects on profitability from fluctuations in material costs by passing through these costs to our customers.  Our earnings and cash flow are dependent upon these spreads that fluctuate based upon market conditions.

Earnings and profitability are also impacted by unit volumes that are subject to market trends, such as substitute products, imports, technologies, and market share.  In our core product lines, we intensively manage our pricing structure while attempting to maximize profitability.  From time-to-time, this practice results in lost sales opportunities and lower volume.  For plumbing systems, plastics are the primary substitute product; these products represent an increasing share of consumption.  U.S. consumption of copper tube is still predominantly supplied by U.S. manufacturers.  For certain air-conditioning and refrigeration applications, aluminum based systems are the primary substitution threat.  We cannot predict the acceptance or the rate of switching that may occur.  In the last decade,recent years, brass rod consumption in the U.S. has declined due to the outsourcing of many manufactured products from offshore regions.

Results of OperationsRESULTS OF OPERATIONS

Consolidated Results

The following table compares summary operating results for 2017, 2016, 2015, and 2014:

        Percent Change 
(In thousands) 2016 2015 2014 2016 vs. 2015 2015 vs. 2014 
            
Net sales $2,055,622  $2,100,002  $2,364,227   (2.1)%  (11.2)%
Operating income  152,713   137,268   153,996   11.3   (10.9)
Net income  99,727   87,864   101,560   13.5   (13.5)



2015:

F-3


        Percent Change
(In thousands) 2017 2016 2015 2017 vs. 2016 2016 vs. 2015
           
Net sales $2,266,073
 $2,055,622
 $2,100,002
 10.2 % (2.1)%
Operating income 151,957
 152,713
 137,268
 (0.5) 11.3
Net income 85,598
 99,727
 87,864
 (14.2) 13.5
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The following are components of changes in net sales compared to the prior year:

  2016 vs. 2015  2015 vs. 2014  
        
Net selling price in core product lines (9.0)  (9.4)%
Unit sales volume in core product lines (1.6)     (3.4) 
Acquisitions and new products 9.0      5.8  
Dispositions     (2.6) 
Other (0.5)     (1.6) 
          
  (2.1)    (11.2)%
  2017 vs. 2016 2016 vs. 2015
     
Net selling price in core product lines 13.0 % (9.0)%
Unit sales volume in core product lines (1.3) (1.6)
Acquisitions and new products 1.5
 9.0
Dispositions (2.6) 
Other (0.4) (0.5)
     
  10.2 % (2.1)%

The increase in net sales in 2017 was primarily due to (i) higher net selling prices of $266.9 million in our core product lines, primarily copper tube and brass rod, (ii) $16.4 million of incremental sales recorded by Jungwoo-Mueller, acquired in April 2016, and (iii) $14.4 million of sales recorded by Pexcor Manufacturing Company Inc. and Heatlink Group Inc. (collectively, Heatlink Group), acquired in May 2017. These increases were partially offset by (i) the absence of sales of $54.2 million recorded by Mueller-Xingrong, a business we sold during June 2017, and (ii) lower unit sales volume of $27.3 million in our core product lines.

The decrease in net sales in 2016 was primarily due to (i) lower net selling prices of $189.0 million in our core product lines, primarily copper tube and brass rod, and (ii) lower unit sales volume of $33.0 million in our core product lines.  The decrease in net sales resulting from lower net selling prices also reflects the impact of translating net sales of the Company'sCompany’s foreign operations to U.S. dollars, which was approximately $43.6 million.  These decreases were partially offset by (i) $139.4 million of incremental sales recorded by Great Lakes Copper Ltd. (Great Lakes), acquired in July 2015, (ii) $22.0 million of sales recorded by Jungwoo-Mueller, acquired in April 2016, (iii) $19.2 million of incremental sales recorded by Sherwood Valve LLC (Sherwood), acquired in June 2015, and (iv) $3.5 million of incremental sales recorded by Turbotec Products, Inc. (Turbotec), acquired in March 2015.

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The decrease in net sales in 2015 was primarily due to (i) lower net selling prices of $218.3 million in our core product lines, primarily copper tube and brass rod, (ii) lower unit sales volume of $79.9 million in our core product lines, primarily in the Industrial Metals segment, and (iii) the absence of sales of $57.5 million recorded by Primaflow, a business we sold during November 2014.  These decreases were offset by (i) $90.5 million of sales recorded by Great Lakes, (ii) $20.8 million of sales recorded by Sherwood, and (iii) $16.8 million of sales recorded by Turbotec, all of which were businesses acquired during 2015.INDEX


Net selling prices generally fluctuate with changes in raw material costs.  Changes in raw material costs are generally passed through to customers by adjustments to selling prices.  The following graph shows the Comex average copper price per pound by quarter for the most recent three-year period:






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The following tables compare cost of goods sold and operating expenses as dollar amounts and as a percent of net sales for 2017, 2016, 2015, and 2014:2015:

(In thousands) 2016  2015  2014 
          
Cost of goods sold $1,723,499  $1,809,702  $2,043,719 
Depreciation and amortization  35,133   34,608   33,735 
Selling, general, and administrative expense  137,499   130,358   131,740 
Gain on sale of assets     (15,376)  (6,259)
Impairment charges  6,778       
Severance     3,442   7,296 
             
Operating expenses $1,902,909  $1,962,734  $2,210,231 
(In thousands) 2017 2016 2015
       
Cost of goods sold $1,940,617
 $1,723,499
 $1,809,702
Depreciation and amortization 33,944
 35,133
 34,608
Selling, general, and administrative expense 139,580
 137,499
 130,358
Gain on sale of businesses (1,491) 
 (15,376)
Impairment charges 1,466
 6,778
 
Severance 
 
 3,442
       
Operating expenses $2,114,116
 $1,902,909

$1,962,734

  Percent of Net Sales 
  2016  2015  2014 
             
Cost of goods sold  83.9%  86.2%  86.4%
Depreciation and amortization  1.7   1.6   1.4 
Selling, general, and administrative expense  6.7   6.2   5.7 
Gain on sale of assets     (0.7)  (0.3
Impairment charges  0.3       
Severance     0.2   0.3 
             
Operating expenses  92.6%  93.5%  93.5%
  2017 2016 2015
       
Cost of goods sold 85.6 % 83.9% 86.2 %
Depreciation and amortization 1.5
 1.7
 1.6
Selling, general, and administrative expense 6.2
 6.7
 6.2
Gain on sale of businesses (0.1) 
 (0.7)
Impairment charges 0.1
 0.3
 
Severance 
 
 0.2
       
Operating expenses 93.3 % 92.6% 93.5 %

The increase in cost of goods sold in 2017 was primarily due to the increase in the average cost of copper, our principal raw material. This was partially offset by the decrease in sales volume resulting from the sale of Mueller-Xingrong. The decrease in cost of goods sold in 2016 and 2015 was primarily due to the decrease in the average cost of copper, our principal raw material, largely offset by the increase in sales volume related to businesses acquired during 2015 and 2016.
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Depreciation and amortization decreased in 2017 primarily due to several long-lived assets becoming fully depreciated and amortized, as well as the sale of long-lived assets at Mueller-Xingrong. Depreciation and amortization increased in 2016 and 2015 primarily as a result of depreciation and amortization of long-lived assets for businesses acquired.

Selling, general, and administrative expenses increased in 2017, primarily due to (i) incremental expenses of $5.5 million associated with Heatlink Group and Jungwoo-Mueller, (ii) higher environmental remediation and product liability costs of $1.0 million, and (iii) an increase in foreign currency exchange losses of $0.6 million. These increases were partially offset by a reduction in employment costs of $4.6 million, including net periodic pension costs of $3.0 million and incentive compensation of $1.1 million. The increase in selling, general, and administrative expenses in 2016 was primarily due to (i) incremental expenses of $8.9 million associated with businesses acquired in 2015 and 2016 and (ii) an increase in employment costs, including incentive compensation and net periodic pension costs, of $1.6 million.  This was partially offset by a reduction in foreign currency exchange losses of $0.9 million.  In addition, there waswere $1.9 million of equipment relocation costs and losses on the sale of assets related to the rationalization of Yorkshire Copper Tube (Yorkshire) in 2015. The decrease in 2015 was primarily due to (i)

During 2017, we recognized fixed asset impairment charges for certain copper fittings manufacturing equipment of $1.5 million and a decreasegain of $10.2$1.5 million in selling, general, and administrative expenses related toon the sale of Primaflow, (ii) lower employment costs, including incentive compensation, of $5.4 million, and (iii) a decrease of $1.6 millionour interest in agent commissions as a result of lower sales.  These decreases were offset by (i) selling, general, and administrative expenses of $6.6 million associated with businesses acquired in 2015, (ii) higher net periodic pension costs of $5.1 million, and (iii) increased professional fees of $1.6 million related to the upgrade of our ERP system.  Lastly, during 2014 there was a reduction in accruals related to legal matters of $0.5 million. Mueller-Xingrong.

During 2016, we recognized fixed asset impairment charges for certain manufacturing equipment of $6.8 million.

During 2015, our operating results were positively impacted by a net gain of $15.4 million recorded on the sale of certain assets.  This was offset by $3.4 million of severance charges related to the rationalization of Yorkshire.

Our operating results in 2014 were positively impacted by a net gain of $6.3 million recorded for the sale of our plastic pipe manufacturing assets, the land and building in Portage, Michigan, and our United Kingdom based import distribution business.  This was offset by $7.3 million in severance charges related to the rationalization of Yorkshire.

Interest expense decreased slightlyincreased in 20162017 primarily as a result of interest associated with our 6% Subordinated Debentures issued during the first quarter as part of our special dividend. The slight decrease in 2016 was primarily due to decreased borrowing costs at Mueller-Xingrong.  This was offset by (i) increased borrowing costs and the amortization of debt issuance costs on our Credit Agreement, (ii) borrowing costs associated with revolving credit arrangements at Jungwoo-Mueller, and (iii) lower capitalized interest. The increase of $1.9 million

Environmental expense for our non-operating properties was significantly higher in 2015 was2017, primarily as a result of additional costs of $2.3 millionongoing remediation activities related to the Lead Refinery site. It was slightly higher in 2016 due to the terms of our interest rate swap agreements that became effective in January 2015, offset by decreased borrowing costs of $0.3 million at Mueller-Xingrong to fund working capital.spending on special projects.

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Other income, net, was $0.7consistent each period at $1.8 million in 2017, compared to $2.0 million in 2016 and $2.2 million in 2015.

Income tax expense was $37.9 million in 2017, representing an effective tax rate of 29.8 percent.  This rate was lower than what would be computed using the U.S. statutory federal rate primarily due to (i) reductions for the effect of lower foreign tax rates when compared to the U.S. statutory rate and other income, net,foreign adjustments of $6.0 million, (ii) the U.S. production activities deduction of $1.6 million, (iii) the benefit of stock-based compensation deductions of $2.2 million, and (iv) the impact of the change in 2015the federal tax rate under the Tax Cuts and other expense,Jobs Act (the Act) on deferred taxes of $12.1 million.  These reductions were partially offset by (i) the accrual of federal tax on the Company’s accumulated foreign earnings under the Act of $12.9 million, (ii) the provision for state income taxes, net of $0.2 million in 2014.  The change in 2016 was primarily attributable to higher environmental costsfederal benefit, of $1.2 million.  The change in 2015 was primarily related to lower postretirement benefit costs of $1.4 million, lower environmental costs of $0.8$1.1 million, and higher interest income(iii) other adjustments of $0.5$1.2 million.

Income tax expense was $48.1 million in 2016, forrepresenting an effective tax rate of 33.0 percent.  This rate was lower than what would be computed using the U.S. statutory federal rate primarily due to reductions for the effect of lower foreign tax rates lower thanwhen compared to the U.S. statutory rate and other foreign adjustments of $4.1 million and the U.S. production activities deduction of $3.1 million.  These reductions were partially offset by the provision for state income taxes, net of federal benefit, of $2.0 million, and $2.2 million of other adjustments.

Income tax expense was $43.4 million in 2015, forrepresenting an effective tax rate of 32.9 percent.  This rate was lower than what would be computed using the U.S. statutory federal rate primarily due to reductions to the Company'sCompany’s deferred tax liabilities of $4.2 million resulting from the acquisition of a foreign subsidiary and the U.S. production activities deduction of $3.5 million.  These reductions were partially offset by the provision for state income taxes, net of federal benefit, of $2.7 million, and $2.3 million of other adjustments.

Income tax expense was $45.5During 2017, we recognized losses of $2.1 million on our investment in 2014, for an effective tax rate of 30.7 percent.  This rate was lower than what would be computed using the U.S. statutory federal rate primarily due to decreasesunconsolidated affiliates, which represents our 50 percent interests in valuation allowances of $5.7 million; the U.S. production activities deduction benefit of $4.0 million;Tecumseh Products Company and the effect of lower foreign tax rates and other foreign adjustments of $1.1 million.  These decreases were partially offset by the provision for state income taxes, net of federal benefit, of $3.3 million and $1.2 million of other adjustments.

entity that provides financing to Tecumseh. During 2016, we recognized $1.9 million of income on our investment in unconsolidated affiliates.  Thisthese investments, which included athe gain that resulted from the allocation of the purchase price recorded by our equity method investees, whichbut was offset by restructuring and impairment charges and net losses during the year.

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Piping Systems Segment

The following table compares summary operating results for 2017, 2016, 2015, and 20142015 for the businesses comprising our Piping Systems segment:

       Percent Change 
(In thousands)2016 2015 2014 2016 vs. 2015 2015 vs. 2014 
            
Net sales $1,429,589  $1,436,689  $1,622,921   (0.5)%  (11.5)%
Operating income  103,886   113,232   118,558   (8.3)  (4.5)
        Percent Change
(In thousands) 2017 2016 2015 2017 vs. 2016 2016 vs. 2015
           
Net sales $1,564,950
 $1,429,589
 $1,436,689
 9.5 % (0.5)%
Operating income 99,558
 103,886
 113,232
 (4.2) (8.3)

The following are components of changes in net sales compared to the prior year:

  2016 vs. 2015  2015 vs. 2014 
       
Net selling price in core product lines (10.0) (9.8)%
Unit sales volume in core product lines (1.3)  (1.4) 
Acquisitions 11.5   5.6  
Dispositions    (3.9) 
Other (0.7)  (2.0) 
         
  (0.5)%   (11.5)%
  2017 vs. 2016 2016 vs. 2015
     
Net selling price in core product lines 13.1 % (10.0)%
Unit sales volume in core product lines (2.3) (1.3)
Acquisitions 2.2
 11.5
Dispositions (3.8) 
Other 0.3
 (0.7)
     
  9.5 % (0.5)%

F-6The increase in net sales in 2017 was primarily attributable to (i) higher net selling prices of $186.5 million in the segment’s core product lines, primarily copper tube, (ii) $16.4 million of incremental sales recorded by Jungwoo-Mueller and (iii) $14.4 million of sales recorded by Heatlink Group. These increases were partially offset by (i) the absence of sales of $54.2 million recorded by Mueller-Xingrong and (ii) lower unit sales volume of $33.1 million in the segment’s core product lines.

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The decrease in net sales in 2016 was primarily attributable to (i) lower net selling prices of $144.4 million in the segment'ssegment’s core product lines, primarily copper tube, (ii) lower unit sales volume of $18.8 million in the segment'ssegment’s core product lines, and (iii) a decrease in sales of $5.3 million in the segment'ssegment’s non-core product lines.  The decrease in net sales resulting from lower net selling prices also reflects the impact of translating net sales of the segment'ssegment’s foreign operations to U.S. dollars, which was approximately $43.6 million.  These decreases were partially offset by (i) $139.4 million of incremental sales recorded by Great Lakes and (ii) $22.0 million of sales recorded by Jungwoo-Mueller.

The decrease in net sales during 2015 was primarily due to (i) lower net selling prices of $158.4 million in the segment's core product lines, primarily copper tube, (ii) the absence of sales of $57.5 million recorded by Primaflow, (iii) lower unit sales volume of $23.4 million in the segment's core product lines, and (iv) a decrease in sales of $37.4 million in the segment's non-core product lines.  These decreases were offset by $90.5 million of sales recorded by Great Lakes.

The following tables compare cost of goods sold and operating expenses as dollar amounts and as a percent of net sales for 2017, 2016, 2015, and 2014:2015:

(In thousands) 2016  2015  2014 
          
Cost of goods sold $1,228,949  $1,245,929  $1,409,581 
Depreciation and amortization  22,421   22,559   22,221 
Selling, general, and administrative expense  68,218   66,903   71,524 
Gain on sale of assets     (15,376)  (6,259)
Impairment charges  6,115       
Severance     3,442   7,296 
             
Operating expenses $1,325,703  $1,323,457  $1,504,363 
(In thousands) 2017 2016 2015
       
Cost of goods sold $1,369,161
 $1,228,949
 $1,245,929
Depreciation and amortization 21,777
 22,421
 22,559
Selling, general, and administrative expense 74,479
 68,218
 66,903
Gain on sale of businesses (1,491) 
 (15,376)
Impairment charges 1,466
 6,115
 
Severance 
 
 3,442
       
Operating expenses $1,465,392
 $1,325,703
 $1,323,457

  Percent of Net Sales 
  2016  2015  2014 
             
Cost of goods sold  86.0%  86.7%  86.9%
Depreciation and amortization  1.5   1.6   1.4 
Selling, general, and administrative expense  4.8   4.7   4.4 
Gain on sale of assets     (1.1)  (0.4
Impairment charges  0.4       
Severance     0.2   0.4 
             
Operating expenses  92.7%  92.1%  92.7%
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  2017 2016 2015
       
Cost of goods sold 87.4 % 86.0% 86.7 %
Depreciation and amortization 1.4
 1.5
 1.6
Selling, general, and administrative expense 4.8
 4.8
 4.7
Gain on sale of businesses (0.1) 
 (1.1)
Impairment charges 0.1
 0.4
 
Severance 
 
 0.2
       
Operating expenses 93.6 % 92.7% 92.1 %

The increase in cost of goods sold in 2017 was primarily due to the increase in the average cost of copper and the increase in sales volume related to the acquisition of Jungwoo-Mueller and Heatlink Group, partially offset by the decrease in sales volume resulting from the sale of Mueller-Xingrong and in certain other businesses. The decrease in cost of goods sold in 2016 was primarily due to the decrease in the average cost of copper, largely offset by the increase in sales volume related to businesses acquired during 2015 and 2016.  The decrease in 2015 was primarily due to the decrease in the average cost of copper and the decrease in unit sales volume related to businesses disposed, slightly offset by the increase in sales volume related to businesses acquired during 2015. 

Depreciation and amortization decreased slightly in 2016, 2015,2017 and 2014 was consistent.2016.  This was a result of the sale of long-lived assets at Mueller-Xingrong as well as several long-lived assets becoming fully depreciated and amortized, offset by depreciation and amortization of the long-lived assets acquired at Great Lakes and Jungwoo-Mueller.for businesses acquired.

Selling, general, and administrative expenses increased for 2017, primarily due to incremental expenses associated with Jungwoo-Mueller and Heatlink Group of $5.5 million. The increase in 2016 was primarily due to incremental expenses associated with Great Lakes and Jungwoo-Mueller of $5.7 million.  This was offset by a reduction in (i) foreign currency exchange losses of $0.8 million and (ii) a decrease in employment costs, including incentive compensation, of $0.3 million.  In addition, there was $1.9 million of equipment relocation costs and losses on the sale of assets related to the rationalization of Yorkshire recognized in 2015. The decrease in 2015 was primarily due to (i)

During 2017, we recognized fixed asset impairment charges for certain copper fittings manufacturing equipment of $1.5 million and a decreasegain of $10.2$1.5 million in selling, general, and administrative expenses related toon the sale of Primaflow and (ii) a decrease of $1.5 millionour interest in agent commissions as a result of lower sales.  These decreases were offset by (i) selling, general, and administrative expenses of $3.6 million associated with Great Lakes and (ii) higher net periodic pension costs of $1.9 million.  Lastly, during 2014 there was a reduction in accruals related to legal matters of $0.5 million. Mueller-Xingrong.
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During 2016, we recognized fixed asset impairment charges for certain manufacturing equipment of $6.1 million.

During 2015, our operating results were positively impacted by a net gain of $15.4 million recorded on the sale of certain assets.  This was offset by $3.4 million of severance charges related to the rationalization of Yorkshire.

Our operating results in 2014 were positively impacted by a net gain of $6.3 million recorded for the sale of our plastic pipe manufacturing assets, the land and building in Portage, Michigan, and our United Kingdom based import distribution business.  This was offset by $7.3 million in severance charges related to the rationalization of Yorkshire.
  
Industrial Metals Segment

The following table compares summary operating results for 2017, 2016, 2015, and 20142015 for the businesses comprising our Industrial Metals segment:

       Percent Change 
(In thousands)2016 2015 2014 2016 vs. 2015 2015 vs. 2014 
            
Net sales $521,060  $567,467  $659,847   (8.2)%  (14.0)%
Operating income  78,168   57,442   72,210   36.1   (20.5)
        Percent Change
(In thousands) 2017 2016 2015 2017 vs. 2016 2016 vs. 2015
           
Net sales $602,131
 $521,060
 $567,467
 15.6 % (8.2)%
Operating income 75,752
 78,168
 57,442
 (3.1) 36.1

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The following are components of changes in net sales compared to the prior year:

  2016 vs. 2015  2015 vs. 2014  
        
Net selling price in core product lines (8.0)%  (9.3)%
Unit sales volume in core product lines (2.6)   (8.8) 
Acquisitions & new products 3.5    4.7  
Other (1.1)   (0.6) 
          
  (8.2)  (14.0)%
  2017 vs. 2016 2016 vs. 2015
     
Net selling price in core product lines 15.7 % (8.0)%
Unit sales volume in core product lines 1.1
 (2.6)
Acquisitions & new products 
 3.5
Other (1.2) (1.1)
     
  15.6 % (8.2)%

The increase in net sales in 2017 was primarily due to higher net selling prices of $80.1 million in the segment’s core product lines, primarily brass rod.

The decrease in net sales during 2016 was primarily due to (i) lower net selling prices of $44.5 million in the segment'ssegment’s core product lines primarily brass rod, and (ii) lower unit sales volume of $14.2 million in the segment'ssegment’s core product lines.  These decreases were partially offset by $19.2 million of incremental sales recorded by Sherwood.

The decrease in net sales in 2015 was primarily due to (i) lower net selling prices of $60.0 million in the segment's core product lines, primarily brass rod and forgings, and (ii) lower unit sales volume of $56.5 million in the segment's core product lines.  These decreases were offset by and $20.8 million of sales recorded by Sherwood.

The following tables compare cost of goods sold and operating expenses as dollar amounts and as a percent of net sales for 2017, 2016, 2015, and 2014:

(In thousands) 2016  2015  2014 
          
Cost of goods sold $420,905  $491,567  $572,979 
Depreciation and amortization  8,162   7,503   6,998 
Selling, general, and administrative expense  13,162   10,955   7,660 
Impairment charges  663       
             
Operating expenses $442,892  $510,025  $587,637 


2015:

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(In thousands) 2017 2016 2015
       
Cost of goods sold $506,973
 $420,905
 $491,567
Depreciation and amortization 7,516
 8,162
 7,503
Selling, general, and administrative expense 11,890
 13,162
 10,955
Impairment charges 
 663
 
       
Operating expenses $526,379
 $442,892
 $510,025

  Percent of Net Sales 
  2016  2015  2014 
             
Cost of goods sold  80.8%  86.6%  86.8%
Depreciation and amortization  1.6   1.3   1.1 
Selling, general, and administrative expense  2.5   2.0   1.2 
Impairment charges  0.1       
             
Operating expenses  85.0%  89.9%  89.1%
  2017 2016 2015
       
Cost of goods sold 84.2% 80.8% 86.6%
Depreciation and amortization 1.2
 1.6
 1.3
Selling, general, and administrative expense 2.0
 2.5
 2.0
Impairment charges 
 0.1
 
       
Operating expenses 87.4% 85.0% 89.9%

The increase in cost of goods sold in 2017 was primarily due to the increase in the average cost of copper. The decrease in cost of goods sold in 2016 was primarily related to the decrease in the average cost of copper. The decrease

Depreciation and amortization decreased slightly in cost2017 as a result of goods sold in 2015 was primarily due to the decrease in the average cost of copper and the decrease in sales volume in the segment's core product lines, partially offset by the increase in sales volume related to the acquisition of Sherwood.  A sharp decline in copper prices during 2015 put pressure on margins of our businesses accounting for inventory on a FIFO basis.several long-lived assets becoming fully depreciated. Depreciation and amortization increased in 2016 and 2015 as a result of depreciation and amortization of long-lived assets for the Sherwood business and recent capital expenditures. business. 

Selling, general, and administrative expenses increaseddecreased in 2017 primarily due to a reduction in employment costs, including incentive compensation and net periodic pension costs, of $1.1 million. The increase in 2016 was primarily due toa result of incremental expenses associated with Sherwood of $2.7 million, offset by a decrease in net periodic pension costs of $0.7 million.  The increase in 2015 was a result of higher net periodic pension costs of $3.0 million, as well as incremental selling, general, and administrative expenses of $1.2 million for Sherwood.  This was offset by lower employment costs, including incentive compensation, of $0.4 million. 

During 2016, we recognized fixed asset impairment charges for certain manufacturing equipment of $0.7 million.million on fixed assets related to the rationalization of Sherwood.

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Climate Segment

The following table compares summary operating results for 2017, 2016, 2015, and 20142015 for the businesses comprising our Climate segment:

       Percent Change 
(In thousands)2016 2015 2014 2016 vs. 2015 2015 vs. 2014 
            
Net sales $119,758  $110,727  $99,336   8.2%  11.5%
Operating income  17,733   12,459   11,029   42.3   13.0 
        Percent Change
(In thousands) 2017 2016 2015 2017 vs. 2016 2016 vs. 2015
           
Net sales $131,448
 $119,758
 $110,727
 9.8% 8.2%
Operating income 20,325
 17,733
 12,459
 14.6
 42.3

Net sales for 20162017 increased primarily as a result of an increase in volume and improved product mix.  Net sales for 2016 increased due to incremental sales recorded by Turbotec of $3.5 million and an increase in volume in the segment'ssegment’s other businesses.  Net sales for 2015 increased due to $16.8 million of sales recorded by Turbotec, offset by lower volumes for Refrigeration Products and Fabricated Tube Products.

The following tables compare cost of goods sold and operating expenses as dollar amounts and as a percent of net sales for 2017, 2016, 2015, and 2014:

(In thousands) 2016  2015  2014 
          
Cost of goods sold $89,927  $86,894  $79,099 
Depreciation and amortization  2,437   2,257   1,845 
Selling, general, and administrative expense  9,661   9,117   7,363 
             
Operating expenses $102,025  $98,268  $88,307 


2015:

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(In thousands) 2017 2016 2015
       
Cost of goods sold $98,851
 $89,927
 $86,894
Depreciation and amortization 2,513
 2,437
 2,257
Selling, general, and administrative expense 9,759
 9,661
 9,117
       
Operating expenses $111,123
 $102,025
 $98,268


 Percent of Net Sales 
 2016 2015 2014  2017 2016 2015
             
Cost of goods sold  75.1%  78.5%  79.6% 75.2% 75.1% 78.5%
Depreciation and amortization  2.0   2.0   1.9  1.9
 2.0
 2.0
Selling, general, and administrative expense  8.1  ��8.2   7.4  7.4
 8.1
 8.2
                  
Operating expenses  85.2%  88.7%  88.9% 84.5% 85.2% 88.7%

The changesincrease in cost of goods sold in 2017 and 2016 and 2015 werewas related to factors consistent with those noted regarding changes in net sales.  Depreciation and amortization increased inwas consistent 2017, 2016, and 2015 as a result of depreciation and amortization of long-lived assets for the business acquired at Turbotec. 2015. Selling, general, and administrative expenses were consistent in 2017 and 2016, and increased slightly in 2016 and 2015 primarily due to incremental expenses associated with Turbotec of $0.5 million and $1.8 million, respectively. million. 

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LIQUIDITYAND CAPITAL RESOURCES

The following table presents selected financial information for 2017, 2016, 2015, and 2014:2015:

(In thousands) 2016  2015  2014 
          
Increase (decrease) in:         
Cash and cash equivalents $76,473  $(77,290) $40,334 
Property, plant, and equipment, net  15,007   34,314   1,453 
Total debt  11,354   (25,434)  6,111 
Working capital, net of cash and current debt  9,781   (59,316)  14,460 
             
Cash provided by operating activities  157,777   159,609   90,605 
Cash used in investing activities  (53,057)  (190,807)  (38,424)
Cash used in financing activities  (22,561)  (41,258)  (10,551)
(In thousands) 2017 2016 2015
       
Increase (decrease) in:      
Cash and cash equivalents $(231,048) $76,473
 $(77,290)
Property, plant, and equipment, net 9,090
 15,007
 34,314
Total debt 237,708
 11,354
 (25,434)
Working capital, net of cash and current debt 55,405
 9,781
 (59,316)
       
Net cash provided by operating activities 43,995
 157,777
 159,609
Net cash used in investing activities (33,422) (53,057) (190,807)
Net cash used in financing activities (244,566) (22,561) (41,258)

Cash Provided by Operating Activities

During 2017 , net cash provided by operating activities was primarily attributable to (i) consolidated net income of $87.0 million, (ii) depreciation and amortization of $34.2 million, and (iii) an increase in current liabilities of $10.7 million. These cash increases were offset by an increase in inventories of $86.3 million, primarily driven by the increase in the price of copper and an excess inventory build of $38.9 million due to a casting outage in our brass rod mill that impaired our ability to melt scrap returns.

During 2016, net cash provided by operating activities was primarily attributable to consolidated net income of $99.8 million plus the addition of non-cash charges to income.

During 2015, net cash provided by operating activities was primarily attributable to (i) consolidated net income of $88.4 million, (ii) depreciation and amortization of $34.6$35.0 million, (iii) a decrease in receivables of $51.7 million, and (iv) a decrease in inventories of $41.1 million.  These cash increases were offset by a decrease in current liabilities of $54.2$45.6 million.  These changes were primarily due to decreases in the price of copper and an overall decrease in working capital needs.

During 2014, net cash provided by operating activities was primarily attributable to consolidated net income of $102.5 million and depreciation and amortization of $34.1 million.  These cash increases were offset by increased receivables of $21.4 million, an increase in other assets of $23.7 million, and a decrease in other liabilities of $2.2 million.  These changes were primarily due to increased sales volume in certain businesses and additional working capital needs of acquired businesses.

Cash Used in Investing Activities

The major components of net cash used in investing activities in 2017 included (i) capital expenditures of $46.1 million, (ii) $18.4 million for the purchase of Heatlink Group, net of cash acquired, and (iii) investments in our joint venture in Bahrain of $3.3 million. These uses of cash were offset by (i) $17.5 million of proceeds from the sale of our 50.5 percent equity interest in Mueller-Xingrong, net of cash sold, (ii) proceeds from the sale of assets of $12.3 million, (iii) net withdrawals from restricted cash balances of $2.9 million, and (iv) proceeds from the sale of securities of $1.8 million.

The major components of net cash used in investing activities in 2016 included (i) capital expenditures of $37.5 million, and(ii) $20.5 million for the purchase of a 60.0 percent equity interest in Jungwoo-Mueller, net of cash acquired, and (iii) net deposits intoto restricted cash balances of $5.3 million. These uses were offset by $10.3 million in proceeds from the sale of assets.

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The major components of net cash used in investing activities in 2015 included (i) $105.9 million for the acquisition of Turbotec, Sherwood, and Great Lakes, (ii) $65.9 million for our investment in MA Industrial JV LLC, the joint venture that acquired Tecumseh Products Company, and (iii) capital expenditures of $28.8 million. These cash decreases were offset by (i) $5.5 million in proceeds from the sale of certain assets and (ii) net withdrawals from restricted cash balances of $4.3 million.

The major components ofCash Used in Financing Activities

For 2017, net cash used in investing activities in 2014 included $30.1consisted primarily of (i) $196.9 million used for the acquisitionpayment of Yorkshire, capital expendituresthe special dividend and the regular quarterly dividends to stockholders of $39.2the Company, (ii) $110.0 million used to reduce the debt outstanding under our Credit Agreement, (iii) $3.4 million used for repayment of debt by Jungwoo-Mueller and deposits into restricted cashMueller-Xingrong, and (iv) $2.9 million used for the payment of $2.9 million.dividends to noncontrolling interests. These decreasesuses were partially offset by $33.8the issuance of debt of $70.0 million proceeds from the sales of assets.under our Credit Agreement.

Cash Used in Financing Activities
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For 2016, net cash used in financinginvesting activities consisted primarily of (i) $21.2 million used for the payment of regular quarterly dividends to stockholders of the Company and (ii) $3.8 million used for payment of dividends to noncontrolling interests.  This was partially offset by the issuance of debt of $3.5 million.

For 2015, net cash used in financinginvesting activities consisted primarily of (i) $23.6 million used for the repayment of debt by Mueller-Xingrong and (ii) $16.9 million used for payment of regular quarterly dividends to stockholders of the Company.

For 2014, net cash used in financing activities consisted primarily of $16.8 million for payment of regular quarterly dividends to stockholders of the Company, offset by $7.3 million received for the issuance of debt by Mueller-Xingrong.  

Liquidity and Outlook

Management believesWe believe that cash provided by operations, funds available under the credit agreement,Credit Agreement, and cash and cash equivalents on hand will be adequate to meet our liquidity needs, including working capital, capital expenditures, and debt payment obligations.  Our current ratio was 4.13.1 to 1 as of December 31, 2016.30, 2017.

As of December 31, 2016, $73.930, 2017, $73.3 million of our cash and cash equivalents were held by foreign subsidiaries.  All earnings of the foreign subsidiaries are considered to be permanently reinvested, and itreinvested.  Accordingly, no additional income taxes have been provided for any additional outside basis differences that may exist with respect to these entities or any taxes that may be due should these earnings be repatriated as the calculation of such taxes is not practicable to computepracticable. 

The Tax Cuts and Jobs Act (the Act) imposes a one-time transition tax based on our total post-1986 earnings and profits for which the potential deferredaccrual of U.S. income taxes has previously been deferred.  We recorded a provisional amount for this one-time transition tax liability, associatedresulting in an increase in income tax expense of $12.9 million.  This amount will be paid over eight years beginning in 2018, with these undistributed foreign earnings.eight percent of the liability paid each year through 2022 and the remaining 60 percent paid in 2023 through 2025.

We expect the reduction in the U.S. federal tax rate from 35 percent to 21 percent under the Act to provide ongoing benefits to liquidity.  For 2018, we expect our effective tax rate on consolidated earnings to be in the range of 22 to 26 percent.  We believe that cash held domestically, funds available through the credit agreement, and cash generated from U.S. based operations will be adequate to meet the future needs of our U.S. based operations.

Fluctuations in the cost of copper and other raw materials affect the Company'sCompany’s liquidity.  Changes in material costs directly impact components of working capital, primarily inventories, accounts receivable, and accounts payable.  The price of copper has fluctuated significantly and averaged approximately $2.80 in 2017, $2.20 in 2016, and $2.51 in 2015, and $3.12 in 2014.2015.

We have significant environmental remediation obligations which we expect to pay over future years.  Approximately $0.7$1.4 million was spent during 20162017 for environmental matters.  As of December 31, 2016,30, 2017, we expect to spend $0.7$4.3 million in 2017,2018, $2.2 million in 2019, $2.1 million in 2020, $0.6 million in 2018,2021, $0.6 million in 2019, $0.7 million in 2020, $0.7 million in 2021,2022, and $18.6$18.2 million thereafter for ongoing projects.  

Cash used to fund pension and other postretirement benefit obligations was $3.2 million in 2017 and $3.4 million in 2016 and $2.6 million in 2015.2016.  We anticipate making contributions of approximately $2.1$2.2 million to these plans in 2017.2018.

The Company declared and paid a quarterly cash dividend of 10.0 cents per common share induring each quarter of 2017 and the second, third, and fourth quarters of 2016, and 7.5 cents per common share for the first quarter of 2016 and in each quarter of fiscal 20152015.  Additionally, during the first quarter of 2017 the Company distributed a special dividend composed of $3.00 in cash and 2014.$5.00 in principal amount of the Company’s 6% Subordinated Debentures (Debentures) due 2027 for each share of common stock outstanding. Payment of dividends in the future is dependent upon our financial condition, cash flows, capital requirements, and other factors.

On January 25, 2017, we announced a special dividend on our common stock payable on March 9, 2017 to stockholders of record on February 28, 2017.  The special dividend will consist of $3.00 in cash and $5.00 in principal amount of the Company's 6% Subordinated Debentures due 2027 for each share of common stock (less any applicable withholding tax).

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The Debentures will be subordinated to all other funded debt of the Company and will be callable, in whole or in part, at any time at the option of the Company, subject to declining call premiums during the first five years. The Debentures will also grant each holder of the Debentures the right to require the Company to repurchase such holder's Debentures in the event of a change of control, at declining repurchase premiums during the first five years. Interest will be payable semiannually on September 1 and March 1, commencing September 1, 2017.

The effect of the special dividend will be to decrease stockholders' equity by approximately $460.0 million, increase long-term debt by approximately $287.0 million, and decrease cash by approximately$173.0 million.

Capital Expenditures

During 20162017 our capital expenditures were $37.5$46.1 million and related primarily to upgrading equipment and implementing new manufacturing technologies in our copper tube mills and the acquisition of a copper tube mill in Cedar City, Utah..   We anticipate investing approximately $25.0-35.0$25.0 to 30.0 million for capital expenditures in 2017.2018.

Long-Term Debt

On December 6, 2016, the Company entered into a credit agreement (Credit Agreement) providingThe Company’s Credit Agreement provides for an unsecured $350.0 million revolving credit facility which matures on December 6, 2021.  Funds borrowed under the Credit Agreement may be used for working capital purposes and other general corporate purposes.  In addition, the Credit Agreement provides a sublimit of $50.0 million for the issuance of letters of credit, a sublimit of $25.0 million for loans and letters of credit made in certain foreign currencies, and a swing  line loan sublimit of $15.0 million.  Outstanding letters of credit and foreign currency loans reduce borrowing availability under the Credit Agreement.  Total borrowings under the Credit Agreement were $200.0$160.0 million at December 31, 2016.30, 2017.
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On March 23, 2016, Mueller-Xingrong entered into a new secured revolving credit arrangement with a total borrowing capacity
The Debentures distributed as part of RMB 150 million (or approximately $21.7 million).  In addition, Mueller-Xingrong occasionally finances working capital through various accounts receivableour special dividend are subordinated to all other funded debt of the Company and bank draft discount arrangements.  Borrowings are secured by the real property and equipment and bank draft receivables of Mueller-Xingrong and bear interestcallable, in whole or in part, at any time at the latest base-lending rate published byoption of the People's BankCompany, subject to declining call premiums during the first five years. The Debentures also grant each holder the right to require the Company to repurchase such holder’s Debentures in the event of China, which was 4.35 percenta change in control at declining repurchase premiums during the first five years. Interest is payable semiannually on September 1 and March 1, and commenced on September 1, 2017. Total Debentures outstanding as of December 31, 2016.  Total borrowings at Mueller-Xingrong30, 2017 were $7.9 million as of December 31, 2016.$284.5 million.

Jungwoo-Mueller has several secured revolving credit arrangements with a total borrowing capacity of KRW 35.729.9 billion (or approximately $30.3$27.5 million).  Borrowings are secured by the real property and equipment of Jungwoo-Mueller and were bearing interest at an average rate of 3.052.96 percent as of December 31, 2016.30, 2017.  Total borrowings at Jungwoo-Mueller were $12.7$13.8 million as of December 31, 2016.30, 2017.

As of December 31, 2016,30, 2017, the Company'sCompany’s total debt was $227.4$465.1 million or 19.546.5 percent of its total capitalization.

Covenants contained in the Company'sCompany’s financing obligations require, among other things, the maintenance of minimum levels of tangible net worth and the satisfaction of certain minimum financial ratios.  As of December 31, 2016,30, 2017, we were in compliance with all of our debt covenants.

Share Repurchase Program
The Company'sCompany’s Board of Directors has extended, until October 2017,August 2018, its authorization to repurchase up to 20 million shares of the Company'sCompany’s common stock through open market transactions or through privately negotiated transactions. The Company has no obligation to repurchase any shares andWe may cancel, suspend, or extend the time period for the repurchase of shares at any time.  Any repurchases will be funded primarily through existing cash and cash from operations.  The Company may hold any shares repurchased in treasury or use a portion of the repurchased shares for stock-based compensation plans, as well as for other corporate purposes.  From its initial authorization in 1999 through December 31, 2016,30, 2017, the Company had repurchased approximately 4.7 million shares under this authorization.  

Subsequent to year-end and as of February 23, 2018, the Company has repurchased an additional 250 thousand shares.

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Contractual Cash ObligationsONTRACTUAL CASH OBLIGATIONS

The following table presents payments due by the Company under contractual obligations with minimum firm commitments as of December 31, 2016:30, 2017:

     Payments Due by Year 
(In millions)
 Total  2017   2018-2019   2020-2021  Thereafter 
                  
Total debt
  
$
228.3
  
$
13.7
  
$
10.4
  
$
201.7
  
$
2.5
 
Consulting agreement
   
0.7
   
0.7
   
   
   
 
Operating leases
   
31.0
   
7.4
   
8.9
   
5.2
   
9.5
 
Heavy machinery and equipment commitments
   
1.7
   
1.7
   
   
   
 
Purchase commitments (1)
   
598.4
   
597.8
   
0.3
   
0.3
   
 
Interest payments (2)
   
28.5
   
5.8
   
10.6
   
12.1
   
 
                      
Total contractual cash obligations
  
$
888.6
  
$
627.1
  
$
30.2
  
$
219.3
  
$
12.0
 
                      
(1)  The Company has contractual supply commitments for raw materials totaling $572.6 million at year-end prices; these contracts contain variable pricing based on Comex and the London Metals Exchange. These commitments are for purchases of raw materials that are expected to be consumed in the ordinary course of business. 
    
(2)  These payments represent interest on variable-rate debt based on rates in effect at December 31, 2016.
 
 
 
    Payments Due by Year
(In millions) Total 2018 2019-2020 2021-2022 Thereafter
           
Total debt $466.2
 $16.5
 $2.4
 $160.7
 $286.6
Operating leases 40.5
 7.0
 9.6
 6.6
 17.3
Heavy machinery and equipment commitments 3.5
 3.5
 
 
 
Purchase commitments (1)
 829.9
 829.9
 
 
 
Transition tax on accumulated foreign earnings 12.9
 1.0
 2.1
 2.1
 7.7
Interest payments (2)
 180.6
 22.1
 45.7
 40.2
 72.6
           
Total contractual cash obligations $1,533.6
 $880.0
 $59.8
 $209.6
 $384.2
           
(1)
This includes contractual supply commitments totaling $788.2 million at year-end prices; these contracts contain variable pricing based on Comex and the London Metals Exchange. These commitments are for purchases of raw materials that are expected to be consumed in the ordinary course of business. 
(2)
These payments represent interest on long-term debt based on rates in effect at December 30, 2017.

The above obligations will be satisfied with existing cash, funds available under the credit agreement,Credit Agreement, and cash generated by operations.  The Company has no off-balance sheet financing arrangements except for the operating leases identified above.

Market Risks
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MARKET RISKS

The Company is exposed to market risks from changes in raw material and energy costs, interest rates, and foreign currency exchange rates.  To reduce such risks, we may periodically use financial instruments.  Hedging transactions are authorized and executed pursuant to policies and procedures.  Further, we do not buy or sell financial instruments for trading purposes.  A discussion of the Company'sCompany’s accounting for derivative instruments and hedging activities is included in "NoteNote 1 - Summary of Significant Accounting Policies"Policies in the Notes to Consolidated Financial Statements.

Cost and Availability of Raw Materials and Energy

Raw materials, primarily copper and brass, represent the largest component of the Company'sCompany’s variable costs of production.  The cost of these materials is subject to global market fluctuations caused by factors beyond our control.  Significant increases in the cost of metal, to the extent not reflected in prices for our finished products, or the lack of availability could materially and adversely affect our business, results of operations and financial condition.

The Company occasionally enters into forward fixed-price arrangements with certain customers.  We may utilize futures contracts to hedge risks associated with these forward fixed-price arrangements.  We may also utilize futures contracts to manage price risk associated with inventory.  Depending on the nature of the hedge, changes in the fair value of the futures contracts will either be offset against the change in fair value of the inventory through earnings or recognized as a component of accumulated other comprehensive income (AOCI) in equity and reflected in earnings upon the sale of inventory.  Periodic value fluctuations of the contracts generally offset the value fluctuations of the underlying fixed-price transactions or inventory.  At December 31, 2016,30, 2017, we held open futures contracts to purchase approximately $10.2$19.6 million of copper over the next 12 months related to fixed-price sales orders and to sell approximately $28.7$85.3 million of copper over the next threefive months related to copper inventory.

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We may enter into futures contracts or forward fixed-price arrangements with certain vendors to manage price risk associated with natural gas purchases.  The effective portion of gains and losses with respect to positions are deferred in equity as a component of AOCI and reflected in earnings upon consumption of natural gas.  Periodic value fluctuations of the futures contracts generally offset the value fluctuations of the underlying natural gas prices.  There were no open futures contracts to purchase natural gas at December 31, 2016.30, 2017.

Interest Rates

The Company had variable-rate debt outstanding of $212.2$169.9 million at December 30, 2017 and $212.0 million at December 31, 2016 and $216.0 million at December 26, 2015.2016.  At thesethis borrowing levels,level, a hypothetical 10 percent increase in interest rates would have had an insignificant unfavorable impact on our pre-tax earnings and cash flows.  The primary interest rate exposuresexposure on floating-ratevariable-rate debt areis based on LIBOR and the base-lending rate published by the People's Bank of China.  There was $15.2 million of fixed-rate debt outstanding as of December 31, 2016, and no fixed-rate debt outstanding as of December 26, 2015.

Included in the variable-rate debt outstanding is the Company's $200.0 million Credit Agreement which bears interest based on LIBOR.  We have reduced our exposure to increases in LIBOR by entering into interest rate swap contracts.  The fair value of these contracts has been recorded in the Consolidated Balance Sheets, and a portion of the related gains and losses on the contracts are deferred in stockholders' equity as a component of AOCI.  Deferred gains or losses on the contracts will be recognized in interest expense in the period in which the related interest payment being hedged is expensed.  The interest rate swap agreement had an effective date of January 12, 2015.

Foreign Currency Exchange Rates

Foreign currency exposures arising from transactions include firm commitments and anticipated transactions denominated in a currency other than an entity'sentity’s functional currency.  The Company and its subsidiaries generally enter into transactions denominated in their respective functional currencies.  We may utilize certain futures or forward contracts with financial institutions to hedge foreign currency transactional exposures.  Gains and losses with respect to these positions are deferred in equity as a component of AOCI and reflected in earnings upon collection of receivables or payment of commitments.  At December 31, 2016,30, 2017, we had open forward contracts with a financial institution to sell approximately 3.26.0 million euros, 15.624.7 million Swedish kronor, 7.6and 5.2 million Norwegian kroner and 1.2 million U.S. dollars through April 2017.2018.

The Company'sCompany’s primary foreign currency exposure arises from foreign-denominated revenues and profits and their translation into U.S. dollars.  The primary currencies to which we are exposed include the Canadian dollar, the British pound sterling, the Mexican peso, the South Korean won, and the Chinese renminbi.  The Company generally views its investments in foreign subsidiaries with a functional currency other than the U.S. dollar as long-term.  As a result, we generally do not hedge these net investments.  The net investment in foreign subsidiaries translated into U.S. dollars using the year-end exchange rates was $360.7 million at December 30, 2017 and $271.6 million at December 31, 2016 and $249.5 million at December 26, 2015.2016.  The potential loss in value of the Company'sCompany’s net investment in foreign subsidiaries resulting from a hypothetical 10 percent adverse change in quoted foreign currency exchange rates at December 30, 2017 and December 31, 2016 and December 26, 2015 amounted to $27.2$36.1 million and $25.0$27.2 million, respectively.  This change would be reflected in the foreign currency translation component of AOCI in the equity section of our Consolidated Balance Sheets until the foreign subsidiaries are sold or otherwise disposed.

We have significant investments in foreign operations whose functional currency is the British pound sterling, the Mexican peso, the Canadian dollar, the Chinese renminbi,South Korean won, and the South Korean won.Chinese renminbi.  During 2016,2017, the value of the British pound decreased increased
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approximately 17nine percent, the Mexican peso decreasedincreased approximately 16five percent, the Canadian dollar increased approximately three percent, the Chinese renminbi decreased approximately seven percent, and the South Korean won remained consistent,increased approximately 13 percent, and the Chinese renminbi increased approximately seven percent, relative to the U.S. dollar.  The resulting net foreign currency translation lossesgains were recorded as a component of AOCI.


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Critical Accounting Policies and EstimatesRITICAL ACCOUNTING POLICIES AND ESTIMATES

The Company'sCompany’s accounting policies are more fully described in "NoteNote 1 - Summary of Significant Accounting Policies"Policies in the Notes to Consolidated Financial Statements.  As disclosed in Note 1, the preparation of financial statements in conformity with general accepted accounting principles in the United States requires management to make estimates and assumptions about future events that affect amounts reported in the financial statements and accompanying notes. Actual results could differ significantly from those estimates.  Management believes the following discussion addresses our most critical accounting policies, which are those that are most important to the portrayal of the Company'sCompany’s financial condition and results of operations and require management'smanagement’s most difficult, subjective, and complex judgments.

Inventory Valuation Reserves

Our inventories are valued at the lower-of-cost-or-market.  The market price of copper cathode and scrap are subject to volatility.  During periods when open market prices decline below net realizable value, the Company may need to provide an allowance to reduce the carrying value of its inventory.  In addition, certain items in inventory may be considered excess or obsolete and, as such, we may establish an allowance to reduce the carrying value of those items to their net realizable value.  Changes in these estimates related to the value of inventory, if any, may result in a materially adverse impact on our reported financial position or results of operations.  The Company recognizes the impact of any changes in estimates, assumptions, and judgments in income in the period in which they are determined.
 
As of December 31, 201630, 2017 and December 26, 2015,31, 2016, our inventory valuation reserves were $6.9$6.8 million and $6.2$6.9 million, respectively.  The expense recognized in each of these periods was immaterial to our Consolidated Financial Statements.

Impairment of Goodwill

As of December 31, 2016,30, 2017, we had $124.0$130.3 million of recorded goodwill from our business acquisitions, representing the excess of the purchase price over the fair value of the net assets we have acquired.  During 20162017 we recorded $0.4$4.1 million in additional goodwill associated with our Jungwoo-Mueller acquisition and $4.1 million in additional goodwill associated with a deferred tax liability resulting from a basis difference in the long-lived assets acquired from Great Lakes.Heatlink Group acquisition.
Goodwill is subject to impairment testing, which is performed annually as of the first day of the fourth quarter unless circumstances indicate the need to accelerate the timing of the tests.  These circumstances include a significant change in the business climate, operating performance indicators, competition, or sale or disposition of a significant portion of one of our businesses.  In our evaluation of goodwill impairment, we perform a qualitative assessment at the reporting unit level that requires management judgment and the use of estimates to determine if it is more likely than not that the fair value of a reporting unit is less than its carrying amount.  If the qualitative assessment is not conclusive, we proceed to a two-step process to test goodwill for impairment.  The first step is to comparemanagement compares the fair value of a reporting unit with its carrying amount and will recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit to its carrying value (including attributable goodwill).  If this process indicates that theunit’s fair value, is less thannot to exceed the carrying value, a second step of impairment testing is performed to measure the potentialtotal amount of goodwill impairment loss.  In step two, we allocate the fair value ofallocated to the reporting unit determined in step one to its assets and liabilities as if it had just been acquired in a business combination and the purchase price was equivalent to the fair value of the reporting unit.  The excess of the fair value of the reporting unit over the amount assigned to its assets and liabilities is referred to as the implied fair value of goodwill.  The implied fair value of goodwill is then compared to the actual carrying value of goodwill.  If the implied fair value is less than the carrying value, we would be required to recognize an impairment loss for that excess.
We identify reporting units by evaluating components of our operating segments and combining those components with similar economic characteristics.  Reporting units with significant recorded goodwill include Domestic Piping Systems, Canadian Operations,B&K LLC, Great Lakes, Heatlink Group, European Operations, Jungwoo-Mueller, Westermeyer, and Turbotec.
The fair value of each reporting unit is estimated using a combination of the income and market approaches, incorporating market participant considerations and management'smanagement’s assumptions on revenue growth rates, operating margins, discount rates and expected capital expenditures. Estimates used by management can significantly affect the outcome of the impairment test.  Changes in forecasted operating results and other assumptions could materially affect these estimates.
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We evaluated each reporting unit during the fourth quarters of 20162017 and 2015,2016, as applicable. The estimated fair value of each of these reporting units exceeded its carrying values in 20162017 and 2015,2016, and we do not believe that any of these reporting units were at risk of impairment as of December 31, 2016.30, 2017.

Environmental Reserves

We recognize an environmental reserve when it is probable that a loss is likely to occur and the amount of the loss is reasonably estimable.  We estimate the duration and extent of our remediation obligations based upon reports of outside consultants;consultants, internal
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and third party estimates and analyses of cleanup costs;costs and ongoing monitoring costs, communications with regulatory agencies;agencies, and changes in environmental law.  If we were to determine that our estimates of the duration or extent of our environmental obligations were no longer accurate, we would adjust our environmental reserve accordingly in the period that such determination is made.  Estimated future expenditures for environmental remediation are not discounted to their present value.  Accrued environmental liabilities are not reduced by potential insurance reimbursements.

Environmental expenses that relate to ongoing operations are included as a component of cost of goods sold.  Environmental expenses related to non-operating properties are included in otherpresented below operating income net in the Consolidated Statements of Income.

Income Taxes

We estimate total income tax expense based on domestic and international statutory income tax rates in the tax jurisdictions where we operate, permanent differences between financial reporting and tax reporting, and available credits and incentives.

Deferred income tax assets and liabilities are recognized for the future tax effects of temporary differences between the treatment of certain items for financial statement and tax purposes using tax rates in effect for the years in which the differences are expected to reverse.  Realization of certain components of deferred tax assets is dependent upon the occurrence of future events.  

Valuation allowances are recorded when, in the opinion of management, it is more likely than not that all or a portion of the deferred tax assets will not be realized.  These valuation allowances can be impacted by changes in tax laws, changes to statutory tax rates, and future taxable income levels, and are based on our judgment, estimates, and assumptions.  In the event we were to determine that we would not be able to realize all or a portion of the net deferred tax assets in the future, we would increase the valuation allowance through a charge to income tax expense in the period that such determination is made.  Conversely, if we were to determine that we would be able to realize our deferred tax assets in the future, in excess of the net carrying amounts, we would decrease the recorded valuation allowance through a decrease to income tax expense in the period that such determination is made.

We record liabilities for known or anticipated tax issues based on our analysis of whether, and the extent to which, additional taxes will be due.  These unrecognized tax benefits are retained until the associated uncertainty is resolved.  Tax benefits for uncertain tax positions that are recognized in the Consolidated Financial Statements are measured as the largest amount of benefit, determined on a cumulative probability basis, that is more likely than not to be realized upon ultimate settlement.  To the extent we prevail in matters for which a liability for an uncertain tax position is established or are required to pay amounts in excess of the liability, our effective tax rate in a given period may be materially affected.

New Accounting Pronouncements

See "NoteNote 1 – Summary of Significant Accounting Policies"Policies in our Consolidated Financial Statements.

Cautionary Statement Regarding Forward-Looking InformationCAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION

This Annual Report contains various forward-looking statements and includes assumptions concerning the Company'sCompany’s operations, future results, and prospects.  These forward-looking statements are based on current expectations and are subject to risk and uncertainties, and may be influenced by factors that could cause actual outcomes and results to be materially different from those predicted.  The forward-looking statements reflect knowledge and information available as of the date of preparation of the Annual Report, and the Company undertakes no obligation to update these forward-looking statements.  We identify the forward-looking statements by using the words "anticipates," "believes," "expects," "intends"“anticipates,” “believes,” “expects,” “intends” or similar expressions in such statements.

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In connection with the "safe harbor"“safe harbor” provisions of the Private Securities Litigation Reform Act of 1995, the Company provides the following cautionary statement identifying important economic, political, and technological factors, among others, which could cause actual results or events to differ materially from those set forth in or implied by the forward-looking statements and related assumptions.  In addition to those factors discussed under "Risk Factors"“Risk Factors” in this Annual Report on Form 10-K, such factors include: (i) the current and projected future business environment, including interest rates and capital and consumer spending; (ii) the domestic housing and commercial construction industry environment; (iii) availability and price fluctuations in commodities (including copper, natural gas, and other raw materials, including crude oil that indirectly affects plastic resins); (iv) competitive factors and competitor responses to the Company'sCompany’s initiatives; (v) stability of government laws and regulations, including taxes; (vi) availability of financing; and (vii) continuation of the environment to make acquisitions, domestic and foreign, including regulatory requirements and market values of candidates.

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MUELLER INDUSTRIES, INC.
CONSOLIDATED STATEMENTS OF INCOME
Years Ended December 30, 2017, December 31, 2016, and December 26, 2015

(In thousands, except per share data) 2017 2016 2015
       
Net sales $2,266,073
 $2,055,622
 $2,100,002
       
Cost of goods sold 1,940,617
 1,723,499
 1,809,702
Depreciation and amortization 33,944
 35,133
 34,608
Selling, general, and administrative expense 139,580
 137,499
 130,358
Gain on sale of businesses (1,491) 
 (15,376)
Impairment charges 1,466
 6,778
 
Severance 
 
 3,442
       
Operating income 151,957
 152,713
 137,268
       
Interest expense (19,502) (7,387) (7,667)
Environmental expense (7,284) (1,279) (46)
Other income, net 1,801
 1,983
 2,234
       
Income before income taxes 126,972
 146,030
 131,789
       
Income tax expense (37,884) (48,137) (43,382)
(Loss) income from unconsolidated affiliates, net of tax (2,077) 1,861
 
       
Consolidated net income 87,011
 99,754
 88,407
       
Net income attributable to noncontrolling interests (1,413) (27) (543)
       
Net income attributable to Mueller Industries, Inc. $85,598
 $99,727
 $87,864
       
Weighted average shares for basic earnings per share 56,925
 56,572
 56,316
Effect of dilutive stock-based awards 559
 597
 652
       
Adjusted weighted average shares for diluted earnings per share 57,484
 57,169
 56,968
       
Basic earnings per share $1.50
 $1.76
 $1.56
       
Diluted earnings per share $1.49
 $1.74
 $1.54
       
Dividends per share $8.400
 $0.375
 $0.300

See accompanying notes to consolidated financial statements.

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MUELLER INDUSTRIES, INC.
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
F-17Years Ended December 30, 2017, December 31, 2016, and December 26, 2015


(In thousands) 2017 2016 2015
       
Consolidated net income $87,011
 $99,754
 $88,407
       
Other comprehensive income (loss), net of tax:  
  
  
Foreign currency translation 13,174
 (27,767) (19,108)
Net change with respect to derivative instruments and hedging activities, net of tax of $(541), $(917), and $575 1,147
 1,709
 (1,056)
Net change in pension and postretirement obligation adjustments, net of tax of $(1,071), $(2,606), and $(3,221) 2,436
 5,383
 6,735
Attributable to unconsolidated affiliates, net of tax of $(505) and $(3,375) 895
 5,975
 
Other, net (380) 159
 (49)
       
Total other comprehensive income (loss), net 17,272
 (14,541) (13,478)
       
Consolidated comprehensive income 104,283
 85,213
 74,929
Comprehensive (income) loss attributable to noncontrolling interests (2,785) 2,548
 867
       
Comprehensive income attributable to Mueller Industries, Inc. $101,498
 $87,761
 $75,796
See accompanying notes to consolidated financial statements.



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MUELLER INDUSTRIES, INC.
CONSOLIDATED BALANCE SHEETS
As of December 30, 2017 and December 31, 2016
(In thousands, except share data) 2017 2016
Assets    
Current assets:    
Cash and cash equivalents $120,269
 $351,317
Accounts receivable, less allowance for doubtful accounts of $980 in 2017 and $637 in 2016 244,795
 256,291
Inventories 327,901
 242,013
Other current assets 46,150
 44,702
     
Total current assets 739,115
 894,323
     
Property, plant, and equipment, net 304,321
 295,231
Goodwill, net 130,293
 123,993
Intangible assets, net 42,008
 36,168
Investment in unconsolidated affiliates 76,434
 77,110
Other noncurrent assets 28,002
 20,651
     
Total Assets $1,320,173
 $1,447,476
     
Liabilities    
Current liabilities:    
Current portion of debt $16,480
 $13,655
Accounts payable 102,503
 103,175
Accrued wages and other employee costs 33,546
 35,121
Other current liabilities 89,723
 67,041
     
Total current liabilities 242,252
 218,992
     
Long-term debt, less current portion 448,592
 213,709
Pension liabilities 11,606
 14,890
Postretirement benefits other than pensions 17,107
 16,383
Environmental reserves 23,699
 21,208
Deferred income taxes 19,403
 19,573
Other noncurrent liabilities 21,486
 6,284
     
Total liabilities 784,145
 511,039
     
Equity  
  
Mueller Industries, Inc. stockholders' equity:  
  
Preferred stock - $1.00 par value; shares authorized 5,000,000; none outstanding 
 
Common stock - $.01 par value; shares authorized 100,000,000; issued 80,183,004; outstanding 57,809,509 in 2017 and 57,395,209 in 2016 802
 802
Additional paid-in capital 274,585
 273,345
Retained earnings 743,503
 1,141,831
Accumulated other comprehensive loss (51,056) (66,956)
Treasury common stock, at cost (445,723) (450,338)
     
Total Mueller Industries, Inc. stockholders' equity 522,111
 898,684
Noncontrolling interests 13,917
 37,753
     
Total equity 536,028
 936,437
     
Commitments and contingencies 
 
     
Total Liabilities and Equity $1,320,173
 $1,447,476
See accompanying notes to consolidated financial statements.
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MUELLER INDUSTRIES, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS
Years Ended December 30, 2017, December 31, 2016, and December 26, 2015

(In thousands) 2017 2016 2015
       
Operating activities:      
Consolidated net income $87,011
 $99,754
 $88,407
Reconciliation of net income to net cash provided by operating activities:  
  
  
Depreciation 30,800
 30,827
 30,556
Amortization of intangibles 3,144
 4,306
 4,052
Amortization of debt issuance costs 303
 569
 432
Loss (income) from unconsolidated affiliates 2,077
 (1,861) 
Insurance proceeds - noncapital related 500
 
 
Stock-based compensation expense 7,450
 6,387
 6,244
Gain on sale of businesses (1,491) 
 (15,376)
(Gain) loss on disposal of assets (624) (651) 561
Impairment charges 1,466
 6,778
 
Income tax benefit from exercise of stock options 
 
 (972)
Deferred income tax (benefit) expense (3,160) 6,998
 (15,818)
Recovery of doubtful accounts receivable 
 (50) (130)
Changes in assets and liabilities, net of businesses acquired and sold:  
  
  
Receivables (1,779) (16,502) 51,660
Inventories (86,286) 6,662
 41,086
Other assets (5,325) 5,808
 12,449
Current liabilities 10,678
 5,646
 (45,585)
Other liabilities 64
 1,518
 436
Other, net (833) 1,588
 1,607
       
Net cash provided by operating activities 43,995
 157,777
 159,609
       
Investing activities:  
  
  
Proceeds from sale of assets, net of cash transferred 31,564
 10,304
 5,538
Acquisition of businesses, net of cash acquired (18,396) (20,533) (105,944)
Capital expenditures (46,131) (37,497) (28,834)
Investment in unconsolidated affiliates (3,317) 
 (65,900)
Net withdrawals from (deposits to) restricted cash balances 2,858
 (5,331) 4,333
       
Net cash used in investing activities (33,422) (53,057) (190,807)
       
Financing activities:  
  
  
Dividends paid to stockholders of Mueller Industries, Inc. (196,944) (21,224) (16,903)
Dividends paid to noncontrolling interests (2,909) (3,765) 
Issuance of long-term debt 71,475
 3,500
 
Repayments of long-term debt (111,224) (1,074) (1,000)
(Repayment) issuance of debt by consolidated joint ventures, net (3,369) 2,265
 (23,567)
Net cash used to settle stock-based awards (1,595) (1,306) (760)
Income tax benefit from exercise of stock options 
 
 972
Debt issuance costs 
 (957) 
       
Net cash used in financing activities (244,566) (22,561) (41,258)
       
Effect of exchange rate changes on cash 2,945
 (5,686) (4,834)
       
(Decrease) increase in cash and cash equivalents (231,048) 76,473
 (77,290)
Cash and cash equivalents at the beginning of the year 351,317
 274,844
 352,134
       
Cash and cash equivalents at the end of the year $120,269
 $351,317
 $274,844
See accompanying notes to consolidated financial statements. Refer to Note 11 for discussion of significant noncash financing activities.
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MUELLER INDUSTRIES, INC.
CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY
Years Ended December 30, 2017, December 31, 2016, and December 26, 2015

  2017 2016 2015
(In thousands)  Shares Amount Shares Amount Shares Amount
Common stock:            
Balance at beginning of year 80,183
 $802
 80,183
 $802
 80,183
 $802
             
Balance at end of year 80,183
 $802
 80,183
 $802
 80,183
 $802
             
Additional paid-in capital:  
  
  
  
  
  
Balance at beginning of year  
 $273,345
  
 $271,158
  
 $268,575
Issuance of shares under incentive stock option plans  
 (2,118)  
 (419)  
 (1,074)
Stock-based compensation expense  
 7,450
  
 6,387
  
 6,244
Income tax benefit from exercise of stock options  
 
  
 
  
 972
Issuance of restricted stock  
 (4,092)  
 (3,781)  
 (3,559)
             
Balance at end of year  
 $274,585
  
 $273,345
  
 $271,158
             
Retained earnings:   
  
  
  
  
  
Balance at beginning of year  
 $1,141,831
  
 $1,063,543
  
 $992,798
Net income attributable to Mueller Industries, Inc.  
 85,598
  
 99,727
  
 87,864
Dividends paid or payable to stockholders of Mueller Industries, Inc.  
 (483,926)  
 (21,439)  
 (17,119)
             
Balance at end of year  
 $743,503
  
 $1,141,831
  
 $1,063,543
             
Accumulated other comprehensive loss  
  
  
  
  
  
Balance at beginning of year  
 $(66,956)  
 $(54,990)  
 $(42,923)
Total other comprehensive income (loss) attributable to Mueller Industries, Inc.  
 15,900
  
 (11,966)  
 (12,067)
             
Balance at end of year  
 $(51,056)  
 $(66,956)  
 $(54,990)
TABLE OF CONTENTS
INDEX
MUELLER INDUSTRIES, INC.
CONSOLIDATED STATEMENTS OF INCOME
Years Ended December 31, 2016, December 26, 2015, and December 27, 2014

(In thousands, except per share data) 2016  2015  2014 
          
Net sales $2,055,622  $2,100,002  $2,364,227 
             
Cost of goods sold  1,723,499   1,809,702   2,043,719 
Depreciation and amortization  35,133   34,608   33,735 
Selling, general, and administrative expense  137,499   130,358   131,740 
Gain on sale of assets     (15,376)  (6,259)
Impairment charges  6,778       
Severance     3,442   7,296 
             
Operating income  152,713   137,268   153,996 
             
Interest expense  (7,387)  (7,667)  (5,740)
Other income (expense), net  704   2,188   (243)
             
Income before income taxes  146,030   131,789   148,013 
             
Income tax expense  (48,137)  (43,382)  (45,479)
Income from unconsolidated affiliates, net of tax  1,861       
             
Consolidated net income  99,754   88,407   102,534 
             
Less net income attributable to noncontrolling interests  (27)  (543)  (974)
             
Net income attributable to Mueller Industries, Inc. $99,727  $87,864  $101,560 
             
Weighted average shares for basic earnings per share  56,572   56,316   56,042 
Effect of dilutive stock-based awards  597   652   726 
             
Adjusted weighted average shares for diluted earnings per share  57,169   56,968   56,768 
             
Basic earnings per share $1.76  $1.56  $1.81 
             
Diluted earnings per share $1.74  $1.54  $1.79 
             
Dividends per share $0.375  $0.300  $0.300 
             
See accompanying notes to consolidated financial statements. 
F-18


MUELLER INDUSTRIES, INC.
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Years Ended December 31, 2016, December 26, 2015, and December 27, 2014


(In thousands) 2016  2015  2014 
          
Consolidated net income $99,754  $88,407  $102,534 
             
Other comprehensive (loss) income, net of tax:            
Foreign currency translation  (27,767)  (19,108)  (6,766)
Net change with respect to derivative instruments and hedging activities (1)
  1,709   (1,056)  (2,499)
Net change in minimum pension and postretirement obligation adjustments (2)
  5,383   6,735   (23,006)
Attributable to unconsolidated affiliates (3)
  5,975       
Other, net  159   (49)  15 
             
Total other comprehensive loss  (14,541)  (13,478)  (32,256)
             
Consolidated comprehensive income  85,213   74,929   70,278 
Comprehensive loss (income) attributable to noncontrolling interests  2,548   867   (822)
             
Comprehensive income attributable to Mueller Industries, Inc. $87,761  $75,796  $69,456 
             
See accompanying notes to consolidated financial statements. 
  
(1) Net of taxes of $(917) in 2016, $575 in 2015, and $1,362 in 2014
 
  
(2) Net of taxes of $(2,606) in 2016, $(3,221) in 2015, and $10,180 in 2014
 
  
(3) Net of taxes of $(3,375) in 2016
 

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MUELLER INDUSTRIES, INC.
CONSOLIDATED BALANCE SHEETS
As of December 31, 2016 and December 26, 2015

(In thousands, except share data)2016 2015 
Assets    
Current assets:    
Cash and cash equivalents  $351,317   $274,844 
Accounts receivable, less allowance for doubtful accounts of $637 in 2016 and $623 in 2015   256,291    251,571 
Inventories   242,013    239,378 
Other current assets   44,702    34,608 
           
Total current assets   894,323    800,401 
           
Property, plant, and equipment, net   295,231    280,224 
Goodwill, net   123,993    120,252 
Intangible assets, net   36,168    40,636 
Investment in unconsolidated affiliates   77,110    65,900 
Other noncurrent assets   20,651    31,388 
           
Total Assets  $1,447,476   $1,338,801 
           
Liabilities        
Current liabilities:        
Current portion of debt  $13,655   $11,760 
Accounts payable   103,175    88,051 
Accrued wages and other employee costs   35,121    35,636 
Other current liabilities   67,041    73,982 
           
Total current liabilities   218,992    209,429 
           
Long-term debt, less current portion   213,709    204,250 
Pension liabilities   14,890    17,449 
Postretirement benefits other than pensions   16,383    17,427 
Environmental reserves   21,208    20,943 
Deferred income taxes   19,573    7,161 
Other noncurrent liabilities   6,284    2,440 
           
Total liabilities   511,039    479,099 
           
Equity          
Mueller Industries, Inc. stockholders' equity:          
Preferred stock - $1.00 par value; shares authorized 5,000,000; none outstanding        
Common stock - $.01 par value; shares authorized 100,000,000; issued 80,183,004; outstanding 57,395,209 in 2016 and 57,158,608 in 2015   802    802 
Additional paid-in capital   273,345    271,158 
Retained earnings   1,141,831    1,063,543 
Accumulated other comprehensive loss   (66,956)   (54,990)
Treasury common stock, at cost   (450,338)   (453,228)
           
Total Mueller Industries, Inc. stockholders' equity   898,684    827,285 
Noncontrolling interests   37,753    32,417 
           
Total equity   936,437    859,702 
           
Commitments and contingencies        
           
Total Liabilities and Equity  $1,447,476   $1,338,801 
           
See accompanying notes to consolidated financial statements. 
F-20

MUELLER INDUSTRIES, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS
Years Ended December 31, 2016, December 26, 2015, and December 27, 2014

(In thousands) 2016  2015  2014 
Operating activities:         
Consolidated net income $99,754  $88,407  $102,534 
Reconciliation of net income to net cash provided by operating activities:            
Depreciation  30,827   30,556   30,205 
Amortization of intangibles  4,306   4,052   3,530 
Amortization of debt issuance costs  569   432   341 
Equity in earnings of unconsolidated affiliates  (1,861)      
Stock-based compensation expense  6,387   6,244   6,265 
Gain on disposal of assets  (651)  (14,815)  (5,405)
Impairment charges  6,778       
Income tax benefit from exercise of stock options     (972)  (837)
Deferred income taxes  6,998   (15,818)  (6,495)
Recovery of doubtful accounts receivable  (50)  (130)  (500)
Changes in assets and liabilities, net of businesses acquired and sold:            
Receivables  (16,502)  51,660   (21,432)
Inventories  6,662   41,086   1,381 
Other assets  5,808   12,449   (23,652)
Current liabilities  5,646   (45,585)  5,849 
Other liabilities  1,518   436   (2,223)
Other, net  1,588   1,607   1,044 
             
Net cash provided by operating activities  157,777   159,609   90,605 
             
Investing activities:            
Proceeds from sale of assets, net of cash transferred  10,304   5,538   33,788 
Acquisition of businesses, net of cash acquired  (20,533)  (105,944)  (30,137)
Capital expenditures  (37,497)  (28,834)  (39,173)
Investment in unconsolidated affiliates     (65,900)   
Net (deposits into) withdrawals from restricted cash balances  (5,331)  4,333   (2,902)
             
Net cash used in investing activities  (53,057)  (190,807)  (38,424)
             
Financing activities:            
Dividends paid to stockholders of Mueller Industries, Inc.  (21,224)  (16,903)  (16,819)
Dividends paid to noncontrolling interests  (3,765)      
Issuance of long-term debt  3,500       
Repayments of long-term debt  (1,074)  (1,000)  (1,050)
Issuance (repayment) of debt by joint ventures, net  2,265   (23,567)  7,258 
Net cash used to settle stock-based awards  (1,306)  (760)  (777)
Income tax benefit from exercise of stock options     972   837 
Debt issuance costs  (957)      
             
Net cash used in financing activities  (22,561)  (41,258)  (10,551)
             
Effect of exchange rate changes on cash  (5,686)  (4,834)  (1,296)
             
Increase (decrease) in cash and cash equivalents  76,473   (77,290)  40,334 
Cash and cash equivalents at the beginning of the year  274,844   352,134   311,800 
             
Cash and cash equivalents at the end of the year $351,317  $274,844  $352,134 
             
  
See accompanying notes to consolidated financial statements. 
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MUELLER INDUSTRIES, INC.
CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY
Years Ended December 31, 2016, December 26, 2015, and December 27, 2014

  2016  2015  2014 
(In thousands)  Shares  Amount  Shares  Amount  Shares  Amount 
Common stock:                  
Balance at beginning of year  80,183  $802   80,183  $802   80,183  $401 
Issuance of shares under two-for-one stock split                 401 
                         
Balance at end of year  80,183  $802   80,183  $802   80,183  $802 
                         
Additional paid-in capital:                        
Balance at beginning of year     $271,158      $268,575      $267,142 
Issuance of shares under incentive stock option plans      (419)      (1,074)      (1,646)
Stock-based compensation expense      6,387       6,244       6,265 
Income tax benefit from exercise of stock options             972       837 
Issuance of shares under two-for-one stock split                    (401)
Issuance of restricted stock      (3,781)      (3,559)      (3,622)
                         
Balance at end of year     $273,345      $271,158      $268,575 
                         
Retained earnings:                         
Balance at beginning of year     $1,063,543      $992,798      $908,274 
Net income attributable to Mueller Industries, Inc.      99,727       87,864       101,560 
Dividends paid or payable to stockholders of Mueller Industries, Inc.      (21,439)      (17,119)      (17,036)
                         
Balance at end of year     $1,141,831      $1,063,543      $992,798 
                         
Accumulated other comprehensive (loss) income:                        
Balance at beginning of year     $(54,990)     $(42,923)     $(10,819)
Total other comprehensive (loss) income attributable to Mueller Industries, Inc.      (11,966)      (12,067)      (32,104)
                         
Balance at end of year     $(66,956)     $(54,990)     $(42,923)
                         
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MUELLER INDUSTRIES, INC.
CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY
(continued)
Years Ended December 30, 2017, December 31, 2016, and December 26, 2015 and December 27, 2014

  2016  2015  2014 
(In thousands) Shares  Amount  Shares  Amount  Shares  Amount 
Treasury stock:                  
Balance at beginning of year  23,024  $(453,228)  23,282  $(457,102)  23,578  $(461,593)
Issuance of shares under incentive stock option plans  (178)  3,499   (149)  2,930   (208)  4,504 
Repurchase of common stock  133   (4,389)  84   (2,840)  107   (3,832)
Issuance of restricted stock  (191)  3,780   (193)  3,784   (195)  3,819 
                         
Balance at end of year  22,788  $(450,338)  23,024  $(453,228)  23,282  $(457,102)
                         
Noncontrolling interests:                        
Balance at beginning of year     $32,417      $33,284      $32,462 
Purchase of Jungwoo-Mueller      11,649               
Dividends paid to noncontrolling interests      (3,765)              
Net income attributable to noncontrolling interests      27       543       974 
Foreign currency translation      (2,575)      (1,410)      (152)
                         
Balance at end of year     $37,753      $32,417      $33,284 
                         
See accompanying notes to consolidated financial statements. 
  2017 2016 2015
(In thousands) Shares Amount Shares Amount Shares Amount
Treasury stock:            
Balance at beginning of year 22,788
 $(450,338) 23,024
 $(453,228) 23,282
 $(457,102)
Issuance of shares under incentive stock option plans (395) 7,828
 (178) 3,499
 (149) 2,930
Repurchase of common stock 188
 (7,305) 133
 (4,389) 84
 (2,840)
Issuance of restricted stock (208) 4,092
 (191) 3,780
 (193) 3,784
             
Balance at end of year 22,373
 $(445,723) 22,788
 $(450,338) 23,024
 $(453,228)
             
Noncontrolling interests:  
  
  
  
  
  
Balance at beginning of year  
 $37,753
  
 $32,417
  
 $33,284
Sale of Mueller-Xingrong   (23,712)   
   
Purchase of Jungwoo-Mueller  
 
  
 11,649
  
 
Dividends paid to noncontrolling interests  
 (2,909)  
 (3,765)  
 
Net income attributable to noncontrolling interests  
 1,413
  
 27
  
 543
Foreign currency translation  
 1,372
  
 (2,575)  
 (1,410)
             
Balance at end of year  
 $13,917
  
 $37,753
  
 $32,417
F-23

See accompanying notes to consolidated financial statements.


Notes to Consolidated Financial Statements

Note 1 – Summary of Significant Accounting Policies

Nature of Operations

The principal business of Mueller Industries, Inc. is the manufacture and sale of copper tube and fittings; line sets; brass and copper alloy rod, bar, and shapes; aluminum and brass forgings; aluminum impact extrusions; plastic fittings and valves; refrigeration valves and fittings; fabricated tubular products; and steel nipples.  The Company also resells imported brass and plastic plumbing valves, malleable iron fittings, faucets, and plumbing specialty products.  The Company markets its products to the HVAC, plumbing, refrigeration, hardware, and other industries.  Mueller'sMueller’s operations are located throughout the United States and in Canada, Mexico, Great Britain, South Korea, and China.

Fiscal Years

The Company'sCompany’s fiscal year ends on the last Saturday of December, and consisted of 52 weeks in 2017, 53 weeks in 2016, and 52 weeks in 2015 and 2014.2015.  These dates were December 30, 2017, December 31, 2016, and December 26, 2015, and December 27, 2014.2015.

Basis of Presentation

The Consolidated Financial Statements include the accounts of Mueller Industries, Inc. and its majority-owned subsidiaries.  The noncontrolling interests represent separate private ownership interests of 49.5 percent of Jiangsu Mueller-Xingrong Copper Industries Limited (Mueller-Xingrong) and 40 percent of Jungwoo Metal Ind. Co., LTD (Jungwoo-Mueller). and 49.5 percent of Jiangsu Mueller-Xingrong Copper Industries Limited (Mueller-Xingrong), which the Company sold during 2017. See “Note 2 – Acquisitions and Dispositions” for additional information.

Common Stock Split

On February 21, 2014, the Company announced a two-for-one stock split of its common stock effected in the form of a stock dividend of one share for each outstanding share.  The record date for the stock split was March 14, 2014, and the additional shares were distributed on March 28, 2014.  Accordingly, all references to share and per share amounts presented in the Consolidated Financial Statements and this Annual Report on Form 10-K have been adjusted retroactively to reflect the stock split.

Revenue Recognition

Revenue is recognized when title and risk of loss pass to the customer, provided collection is determined to be probable and no significant obligations remain for the Company.  Estimates for future rebates on certain product lines and product returns are recognized in the period in which the revenue is recorded.  The cost of shipping product to customers is expensed as incurred as a component of cost of goods sold.

Acquisitions

Accounting for acquisitions requires the Company to recognize separately from goodwill the assets acquired and liabilities assumed at their acquisition date fair values.  Goodwill is measured as the excess of the purchase price over the net amount allocated to the identifiable assets acquired and liabilities assumed.  While management uses its best estimates and assumptions to accurately value assets acquired and liabilities assumed at the acquisition date, the estimates are inherently uncertain and subject to refinement.  As a result, during the measurement period, which may be up to one year from the acquisition date, the Company may record adjustments to the assets acquired and liabilities assumed with the corresponding offset to goodwill.  The operating results generated by the acquired businesses are included in the Consolidated Statements of Income from their respective dates of acquisition.  Acquisition related costs are expensed as incurred.  See "NoteNote 2 – Acquisitions and Dispositions"Dispositions for additional information.

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Cash Equivalents

Temporary investments with original maturities of three months or less are considered to be cash equivalents.  These investments are stated at cost.  At December 31, 201630, 2017 and December 26, 2015,31, 2016, temporary investments consisted of money market mutual funds, commercial paper, bank repurchase agreements, and U.S. and foreign government securities totaling $40.9$0.6 million and $106.4$40.9 million, respectively.  Included in other current assets is restricted cash of $9.0$6.2 million and $3.7$9.0 million at December 31, 201630, 2017 and December 26, 2015,31, 2016, respectively.  These amounts represent required deposits into brokerage accounts that facilitate the Company'sCompany’s hedging activities, and in 2016 included deposits that securesecured certain short-term notes issued under Mueller-Xingrong'sMueller-Xingrong’s credit facility and for the year ended December 31, 2016, funds received in conjunction with the New Markets Tax Credit transaction;transactions; see "NoteNote 10 – New Markets Tax Credit Transaction"Transaction for additional information.

Allowance for Doubtful Accounts

The Company provides an allowance for receivables that may not be fully collected.  In circumstances where the Company is aware of a customer'scustomer’s inability to meet their financial obligations (e.g., bankruptcy filings or substantial credit rating downgrades), it records an allowance for doubtful accounts against amounts due to reduce the net recognized receivable to the amount it believes

most likely will be collected.  For all other customers, the Company recognizes an allowance for doubtful accounts based on its historical collection experience.  If circumstances change (e.g., greater than expected defaults or an unexpected material change in a major customer'scustomer’s ability to meet their financial obligations), the Company could change its estimate of the recoverability of amounts due by a material amount.

Inventories

The Company'sCompany’s inventories are valued at the lower-of-cost-or-market.  The material component of its U.S. copper tube and copper fittings inventories is valued on a LIFO basis.  Other manufactured inventories, includingbasis and the non-material components of U.S. copper tube and copper fittings inventories are valued on a FIFO basis.  The material component of its U.K. and Canadian copper tube inventories are valued on a FIFO basis. The material component of its brass rod and forgings inventories are valued on a FIFO basis. Certain inventories purchased for resale are valued on an average cost basis.  Elements of cost in finished goods inventory in addition to the cost of material include depreciation, amortization, utilities, maintenance, production wages, and transportation costs.
 
The market price of copper cathode and scrap is subject to volatility.  During periods when open market prices decline below net book value, the Company may need to provide an allowance to reduce the carrying value of its inventory.  In addition, certain items in inventory may be considered obsolete and, as such, the Company may establish an allowance to reduce the carrying value of those items to their net realizable value.  Changes in these estimates related to the value of inventory, if any, may result in a materially adverse impact on the Company'sCompany’s reported financial position or results of operations.  The Company recognizes the impact of any changes in estimates, assumptions, and judgments in income in the period in which it is determined.  See "NoteNote 4 – Inventories"Inventories for additional information.

Property, Plant, and Equipment

Property, plant, and equipment is stated at cost less accumulated depreciation.  Expenditures for major additions and improvements are capitalized, while minor replacements, maintenance, and repairs are charged to expense as incurred.  Depreciation of buildings, machinery, and equipment is provided on the straight-line method over the estimated useful lives ranging from 20 to 40 years for buildings and five to 20 years for machinery and equipment.  Leasehold improvements are amortized over the lesser of their useful life or the remaining lease term.  

The Company continually evaluates these assets to determine whether events or changes in circumstances have occurred that may warrant revision of the estimated useful life or whether the remaining balance should be evaluated for possible impairment.  See "NoteNote 7 – Property, Plant, and Equipment, Net"Net for additional information.

Goodwill

Goodwillis recognized for the excess of the purchase price over the fair value of tangible and identifiable intangible net assets of businesses acquired. Several factors give rise to goodwill in business acquisitions, such as the expected benefit from synergies of the combination and the existing workforce of the acquired business. Goodwill is evaluated annually for possible impairment as of the first day of the fourth quarter unless circumstances indicate the need to accelerate the timing of the evaluation. In the evaluation of goodwill impairment, management performs a qualitative assessment to determine if it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If the qualitative assessment is not conclusive, management proceeds to a two-step process to test goodwill for impairment, including comparingcompares the fair value of a reporting unit with its carrying amount and will recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit to its carrying value (including attributable goodwill).  If this process indicates that theunit’s fair value, is less thannot to exceed the carrying value, a second step of impairment testing is performed to measure the potentialtotal amount of goodwill impairment loss.allocated to the reporting unit.

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Fair value for the Company'sCompany’s reporting units is determined using a combination of the income and market approaches (level 3 within the fair value hierarchy), incorporating market participant considerations and management'smanagement’s assumptions on revenue growth rates, operating margins, discount rates and expected capital expenditures.  The market approach measures the fair value of a business through the analysis of publicly traded companies or recent sales of similar businesses.  The income approach uses a discounted cash flow model to estimate the fair value of reporting units based on expected cash flows (adjusted for capital investment required to support operations) and a terminal value.  This cash flow stream is discounted to its present value to arrive at a fair value for each reporting unit.  Future earnings are estimated using the Company'sCompany’s most recent annual projections, applying a growth rate to future periods.  Those projections are directly impacted by the condition of the markets in which the Company'sCompany’s businesses participate.  The discount rate selected for the reporting units is generally based on rates of return available for comparable companies at the date of valuation.  Fair value determinations may include both internal and third-party valuations.  See "NoteNote 8 – Goodwill and Other Intangible Assets"Assets for additional information.


Investment in Unconsolidated Affiliates

The Company owns a 50 percent interest in Tecumseh Products Holding LLC (Joint Venture), an unconsolidated affiliate that acquired Tecumseh Products Company (Tecumseh).  The Company also owns a 50 percent interest in a second unconsolidated affiliate that providedprovides financing to Tecumseh in conjunction with the acquisition.Tecumseh.  These investments are recorded using the equity method of accounting, as the Company can exercise significant influence but does not own a majority equity interest or otherwise control the respective entities.  Under the equity method of accounting, investments are stated at initial cost and are adjusted for subsequent additional investments and the Company'sCompany’s proportionate share of earnings or losses and distributions.

The Company records itsproportionate share of the investee'sinvestee’s net income or loss one quarter in arrears as income (loss) from unconsolidated affiliates, net of tax, in the Consolidated Statements of Income.  The Company'sCompany’s proportionate share of the investees'investees’ other comprehensive income (loss), net of income taxes, is recorded in the Consolidated Statements of Comprehensive Income and Consolidated Statements of Changes in Equity.  In general, the equity investment in the unconsolidated affiliates is equal to the current equity investment plus that entity'sthe investees’ undistributed earnings.

The investment in unconsolidated affiliates is assessed periodically for impairment and is written down when the carrying amount is not considered fully recoverable.  See "NoteNote 9 – Investment in Unconsolidated Affiliates"Affiliates for additional information.

Self-Insurance Accruals

The Company is primarily self-insured for workers'workers’ compensation claims and benefits paid under certain employee health care programs.  Accruals are primarily based on estimated undiscounted cost of claims, which includes incurred but not reported claims, and are classified as accrued wages and other employee costs.

Pension and Other Postretirement Benefit Plans

The Company sponsors several qualified and nonqualified pension and other postretirement benefit plans in the U.S. and certain foreign locations.  The Company recognizes the overfunded or underfunded status of the plans as an asset or liability in the Consolidated Balance SheetSheets with changes in the funded status recorded through comprehensive income in the year in which those changes occur.  The obligations for these plans are actuarially determined and affected by assumptions, including discount rates, expected long-term return on plan assets for defined benefit pension plans, and certain employee-related factors, such as retirement age and mortality.  The Company evaluates its assumptions periodically and makes adjustments as necessary.

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The expected return on plan assets is determined using the market value of plan assets.  Differences between assumed and actual returns are amortized to the market value of assets on a straight-line basis over the average remaining service period of the plan participants using the corridor approach.  The corridor approach defers all actuarial gains and losses resulting from variances between actual results and actuarial assumptions.  These unrecognized gains and losses are amortized when the net gains and losses exceed 10 percent of the greater of the market value of the plan assets or the projected benefit obligation.  The amount in excess of the corridor is amortized over the average remaining service period of the plan participants.  For 2016,2017, the average remaining service period for the pension plans was nine years.  See "NoteNote 12 –Benefit Plans"Plans for additional information.

Environmental Reserves and Environmental Expenses

The Company recognizes an environmental liability when it is probable the liability exists and the amount is reasonably estimable.  The Company estimates the duration and extent of its remediation obligations based upon reports of outside consultants;consultants, internal and third party estimates and analyses of cleanup costs and ongoing monitoring costs;costs, communications with regulatory agencies;agencies, and changes in environmental law.  If the Company were to determine that its estimates of the duration or extent of its environmental obligations were no longer accurate, it would adjust environmental liabilities accordingly in the period that such determination is made.  Estimated future expenditures for environmental remediation are not discounted to their present value.  Accrued environmental liabilities are not reduced by potential insurance reimbursements.

Environmental expenses that relate to ongoing operations are included as a component of cost of goods sold.  Environmental expenses related to non-operating properties are includedpresented below operating income in other income, net on the Consolidated Statements of Income.  See "NoteNote 13 – Commitments and Contingencies"Contingencies for additional information.

Earnings Per Share

Basic earnings per share is computed based on the weighted average number of common shares outstanding.  Diluted earnings per share reflects the increase in weighted average common shares outstanding that would result from the assumed exercise of outstanding stock options and vesting of restricted stock awards calculated using the treasury stock method.  Approximately 190 20

thousand and 427190 thousand stock-based awards were excluded from the computation of diluted earnings per share for the years ended December 31, 201630, 2017 and December 26, 2015,31, 2016, respectively, because they were antidilutive.

Income Taxes

Deferred income tax assets and liabilities are recognized when differences arise between the treatment of certain items for financial statement and tax purposes.  Realization of certain components of deferred tax assets is dependent upon the occurrence of future events.  The Company records valuation allowances to reduce its deferred tax assets to the amount it believes is more likely than not to be realized.  These valuation allowances can be impacted by changes in tax laws, changes to statutory tax rates, and future taxable income levels and are based on the Company'sCompany’s judgment, estimates, and assumptions regarding those future events.  In the event the Company was to determine that it would not be able to realize all or a portion of the net deferred tax assets in the future, it would increase the valuation allowance through a charge to income tax expense in the period that such determination is made.  Conversely, if it werewas to determine that it would be able to realize its deferred tax assets in the future, in excess of the net carrying amounts, the Company would decrease the recorded valuation allowance through a decrease to income tax expense in the period that such determination is made.

The Company provides for uncertain tax positions and the related interest and penalties, if any, based upon management'smanagement’s assessment of whether a tax benefit is more likely than not to be sustained upon examination by tax authorities.  Tax benefits for uncertain tax positions that are recognized in the financial statements are measured as the largest amount of benefit, determined on a cumulative probability basis, that is more likely than not to be realized upon ultimate settlement.  To the extent the Company prevails in matters for which a liability for an uncertain tax position is established or is required to pay amounts in excess of the liability, the Company'sCompany’s effective tax rate in a given financial statement period may be affected.

These estimates are highly subjective and could be affected by changes in business conditions and other factors.  Changes in any of these factors could have a material impact on future income tax expense.  See "NoteNote 14 – Income Taxes"Taxes for additional information.

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Taxes Collected from Customers and Remitted to Governmental Authorities

Taxes assessed by a governmental authority that are directly imposed on a revenue producing transaction between the Company and its customers, primarily value added taxes in foreign jurisdictions, are accounted for on a net (excluded from revenues and costs) basis.

Stock-Based Compensation

The Company has in effect stock incentive plans under which stock-based awards have been granted to certain employees and members of its Board of Directors.  Stock-based compensation expense is recognized in the Consolidated Statements of Income as a component of selling, general, and administrative expense based on the grant date fair value of the awards.  See "NoteNote 16 – Stock-Based Compensation"Compensation for additional information.

Concentrations of Credit and Market Risk

Concentrations of credit risk with respect to accounts receivable are limited due to the large number of customers comprising the Company'sCompany’s customer base, and their dispersion across different geographic areas and different industries, including HVAC, plumbing, refrigeration, hardware, automotive, OEMs, and others.

The Company minimizes its exposure to base metal price fluctuations through various strategies.  Generally, it prices an equivalent amount of copper raw material, under flexible pricing arrangements it maintains with its suppliers, at the time it determines the selling price of finished products to its customers.

Derivative Instruments and Hedging Activities

The Company'sCompany’s earnings and cash flows are subject to fluctuations due to changes in commodity prices, foreign currency exchange rates, and interest rates.  The Company uses derivative instruments such as commodity futures contracts, foreign currency forward contracts, and interest rate swaps to manage these exposures.

All derivatives are recognized in the Consolidated Balance Sheets at their fair value.  On the date the derivative contract is entered into, it is either a) designated as a hedge of  (i) a forecasted transaction or the variability of cash flow to be paid (cash flow hedge) or (ii) the fair value of a recognized asset or liability (fair value hedge), or b) not designated in a hedge accounting relationship,

even though the derivative contract was executed to mitigate an economic exposure (economic hedge), as the Company does not enter into derivative contracts for trading purposes (economic hedge).purposes.  Changes in the fair value of a derivative that is qualified, designated, and highly effective as a cash flow hedge are recorded in stockholders'stockholders’ equity within accumulated other comprehensive income (AOCI), to the extent effective, until they are reclassified to earnings in the same period or periods during which the hedged transaction affects earnings.  Changes in the fair value of a derivative that is qualified, designated, and highly effective as a fair value hedge, along with the gain or loss on the hedged recognized asset or liability that is attributable to the hedged risk, are recorded in current earnings.  Changes in the fair value of undesignated derivative instruments executed as economic hedges and the ineffective portion of designated derivative instrumentsderivatives are reported in current earnings.

The Company documents all relationships between derivative instruments and hedged items, as well as the risk-management objective and strategy for undertaking various hedge transactions.  This process includes linking all derivativesderivative instruments that are designated as fair value hedges to specific assets and liabilities in the Consolidated Balance Sheets and linking cash flow hedges to specific forecasted transactions or variability of cash flow.

The Company also assesses, both at the hedge'shedge’s inception and on an ongoing basis, whether the designated derivative instruments that are used in hedging transactions are highly effective in offsetting changes in cash flow or fair values of hedged items.  When a derivative instrument is determined not to be highly effective as a hedge or the underlying hedged transaction is no longer probable of occurring, hedge accounting is discontinued prospectively in accordance with the derecognition criteria for hedge accounting.

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The Company primarily executes derivative contracts with major financial institutions.  These counterparties expose the Company to credit risk in the event of non-performance.  The amount of such exposure is limited to the fair value of the contract plus the unpaid portion of amounts due to the Company pursuant to terms of the derivative instruments, if any.  If a downgrade in the credit rating of these counterparties occurs, management believes that this exposure is mitigated by provisions in the derivative arrangements which allow for the legal right of offset of any amounts due to the Company from the counterparties with any amounts payable to the counterparties by the Company.  As a result, management considers the risk of loss from counterparty default to be minimal.  See "NoteNote 6 – Derivative Instruments and Hedging Activities"Activities for additional information.

Fair Value of Financial Instruments

The carrying amounts for cash and cash equivalents, accounts receivable, and accounts payable approximate fair value due to the short-term maturity of these instruments.
 
The fair value of long-term debt at December 31, 201630, 2017 approximates the carrying value on that date.  The estimated fair values were determined based on quoted market prices and the current rates offered for debt with similar terms and maturities.  The fair value of long-term debt is classified as level 2 within the fair value hierarchy.  This classification is defined as a fair value determined using market-based inputs other than quoted prices that are observable for the liability, either directly or indirectly.  Outstanding borrowings have variable interest rates that re-price frequently at current market rates.

Foreign Currency Translation

For foreign subsidiaries in which the functional currency is not the U.S. dollar, balance sheet accounts are translated at exchange rates in effect at the end of the year and income statement accounts are translated at average exchange rates for the year.  Translation gains and losses are included in equity as a component of AOCI.  Transaction gains and losses that arise from exchange rate fluctuations on transactions denominated in a currency other than the functional currency are recognized in selling, general, and administrative expense in the Consolidated Statements of Income. Included in the Consolidated Statements of Income were net transaction losses of $0.4 million in 2017, gains of $0.4 million in 2016, and losses of $1.7 million in 2015, and gains of $0.1 million in 2014.2015.

Use of and Changes in Estimates

The preparation of financial statements in conformity with generally accepted accounting principles in the United States (U.S. GAAP) requires management to make estimates, assumptions, and judgments that affect the amounts reported in the financial statements and accompanying notes.  Management makes its best estimate of the ultimate outcome for these items based on historical trends and other information available when the financial statements are prepared. Changes in estimates are recognized in accordance with the accounting rules for the estimate, which is typically in the period when new information becomes available to management. Areas where the nature of the estimate makes it reasonably possible that actual results could materially differ from amounts estimated include but are not limited to: pension and other postretirement benefit plan obligations, tax liabilities, loss contingencies, litigation claims, environmental reserves, and impairment assessments on long-lived assets (including goodwill).


Change in Segment Reporting

At the beginning of fiscal year 2016, the Company made changes to its management reporting structure as a result of a change in the way the Chief Executive Officer, who serves as the Chief Operating Decision Maker, manages and evaluates the business, makes key operating decisions, and allocates resources.  Previously, the Company had two reportable segments: Plumbing & Refrigeration and OEM.  During 2016, the Company realigned its operating segments into three reportable segments: Piping Systems, Industrial Metals, and Climate.  Management has recast certain prior year amounts to conform to the current year presentation.  See "NoteNote 3 - Segment Information"Information for additional information.

Recently Adopted Accounting StandardsStandard

In March 2016,January 2017, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2016-09,2017-04, CompensationIntangiblesStock CompensationGoodwill and Other (Topic 718)350): Improvement to Employee Share-Based Payment AccountingSimplifying the Test for Goodwill Impairment. The ASU eliminates step two from the goodwill impairment test and instead requires all income tax effectsan entity to perform its annual, or interim, goodwill impairment test by comparing the fair value of awardsa reporting unit with its carrying amount. An entity is required to be recognized inrecognize an impairment charge for the income statement whenamount by which the awards vest or are settled.  It also allowscarrying amount exceeds the reporting unit’s fair value, not to exceed the total amount of goodwill allocated to the reporting unit. The updated guidance requires a company to make a policy election to account for forfeitures as they occur.prospective adoption. The guidance is effective for public business entitiesthe Company beginning in interim2020 and fiscal periods beginning after December 15, 2016.  Earlyearly adoption is permitted, but all of the guidance must be adopted in the same period. 
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The Company elected to adopt this standard effective December 27, 2015 on a prospective basis.  The impact of the adoption of this standard was as follows:

·Approximately $0.9 million of excess tax benefits were recorded through income tax expense as a discrete item for the year ended December 31, 2016.
·Excess tax benefits were combined with other income tax cash flows within operating cash flows rather than as a financing activity.
·The Company has elected to change its current policy of estimating forfeitures to a policy of recognizing forfeitures as they occur.

In August 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements – Going Concern (Topic 205-40): Disclosure of Uncertainties about an Entity's Ability to Continue as a Going Concern (ASU 2014-15). The ASU requires management to evaluate relevant conditions, events, and certain management plans that are known or reasonable knowable as of the evaluation date when determining whether substantial doubt about an entity's ability to continue as a going concern exists.  If conditions or events raise substantial doubt about an entity's ability to continue as a going concern, the entity is required to make certain disclosures.  The guidance is effective for annual periods ending after December 15, 2016.permitted. The Company adopted the ASU 2014-15 effective December 31, 2016during the fourth quarter of 2017 and the adoption had no impact on theits Consolidated Financial Statements and related disclosures.Statements.

Recently Issued Accounting Standards

In February 2018, the FASB issued ASU No. 2018-02, Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. The ASU permits entities to reclassify tax effects stranded in AOCI as a result of tax reform to retained earnings. The guidance is effective for the Company in interim and annual periods beginning in 2019. Early adoption is permitted and can be applied retrospectively or in the period of adoption. The Company does not expect the adoption of the standard to have a material impact on its Consolidated Financial Statements.

In March 2017, the FASB issued ASU No. 2017-07, Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost. The ASU requires employers that sponsor defined benefit pension and/or other postretirement benefit plans to present the service cost component of net periodic benefit cost in the same income statement line item(s) as other employee compensation costs arising from services rendered during the period and other components of net periodic benefits cost separately from the line item(s) that includes the service cost and outside of any subtotal of operating income. The guidance is effective for the Company in interim and annual periods beginning in 2018. Early adoption is permitted as of the beginning of an annual period for which financial statements have not been issued or made available for issuance. The Company does not expect the adoption of the standard to have a material impact on its Consolidated Financial Statements.

In January 2017, the FASB issued ASU No. 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business. The ASU provides guidance to assist entities in evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The updated guidance requires a prospective adoption. Early adoption is permitted. This update will be effective for the Company beginning in 2018. The Company does not expect the provisions of the ASU to have a material impact on its Consolidated Financial Statements.

In December 2016, the FASB issued ASU No. 2016-20, Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers. The ASU provides correction or improvement to the guidance previously issued in ASU 2014-09, Revenue from Contracts with Customers (Topic 606). Under the ASU, an entity will recognize revenue to depict the transfer of promised goods or services to customers at an amount that reflects the consideration that it expects to receive in exchange for the goods or services. It also requires more detailed disclosures to enable users of financial statements to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. This guidance is effective for the Company at the beginning of 2018. The standard permits the use of either the full retrospective or cumulative transition effect (modified retrospective) method. The ASU requires revenue to be recognized over time (i.e., throughout the production process) rather than at a point in time (generally upon shipment to the customer) if performance does not create an asset with an alternative use to the entity and the entity has an enforceable right to payment for performance completed to date.  The Company has evaluated specific contract terms, primarily within the Industrial Metals and Climate segments, related to the production of customized products and payment rights and determined that there will be no significant changes to the timing of revenue recognition under the ASU. As part of the overall evaluation of the standard, the Company has assessed changes to its accounting policies, practices, and internal controls over financial reporting to support the standard. The Company does not expect the adoption of the standard to have a material impact on its Consolidated Financial Statements.


In November 2016, the FASB issued ASU No. 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash.  The ASU requires entities to show the changes in the total of cash, cash equivalents, restricted cash, and restricted cash equivalents in the statement of cash flows.  As a result, entities will no longer present transfers between cash and cash equivalents and restricted cash and restricted cash equivalents in the statement of cash flows.  The guidance will be applied retrospectively and is effective for public business entitiesthe Company beginning in interim and fiscal periods beginning after December 15, 2017.2018.  Early adoption is permitted.  The Company does not expect the adoption of the standard to have a material impact on its Consolidated Financial Statements.

In October 2016, the FASB issued ASU No. 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory (ASU 2016-16).  The ASU requires companies to account for the income tax effects of intercompany transfers of assets other than inventory when the transfer occurs.  Companies will still be required to defer the income tax effects of intercompany inventory transactions in an exception to the income tax accounting guidance.  The guidance is effective for public business entitiesthe Company beginning in annual periods beginning after December 15, 2017.2018.  Early adoption is permitted as of the beginning of an annual period.  The Company is still evaluating the effects that the provisions of the ASU 2016-16 will have on its Consolidated Financial Statements.

In February 2016, the FASB issued ASU No. 2016-02,Leases (Topic 842)(ASU 2016-02).  The ASU requires an entity to recognize a right-of-use asset and lease liability for all leases with terms of more than 12 months.  Recognition, measurement and presentation of expenses will depend on classification as a financing or operating lease.  The amendments also require certain quantitative and qualitative disclosures about leasing arrangements.  The ASU will be effective for interim and fiscal periods beginning after December 15,in 2018.  Early adoption is permitted.  The updatedCurrently the guidance requires a modified retrospective adoption.adoption, but in January 2018 the FASB proposed ASU No. 2018-01, Leases (Topic 842), which if approved will allow entities to elect a simplified transition approach whereby they would apply the provisions of the new guidance at the effective date without adjusting the comparative periods presented.  The Company is still evaluating the effects that the provision of ASU 2016-02 will have on its Consolidated Financial Statements.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) (ASU 2014-09).  The ASU will supersede virtually all existing revenue recognition guidance under U.S. GAAP and will be effective for annual reporting periods beginning after December 15, 2017.  The fundamental principles of the new guidance are that companies should recognize revenue in a manner that reflects the timing of the transfer of services to customers and the amount of revenue recognized reflects the consideration that a company expects to receive for the goods and services provided.  The new guidance establishes a five-step approach for the recognition of revenue.  The Company is in the process of evaluating the impact of ASU 2014-09 on its Consolidated Financial Statements.


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Note 2 – Acquisitions and Dispositions

2017 Acquisition

On May 31, 2017, the Company entered into a share purchase agreement pursuant to which the Company acquired all of the outstanding shares of Pexcor Manufacturing Company Inc. and Heatlink Group Inc. (collectively, Heatlink Group) for approximately $16.3 million in cash, net of working capital adjustments. Heatlink Group, based out of Calgary, Alberta, Canada, produces and sells a complete line of products for PEX plumbing and radiant systems. The business complements the Company’s existing businesses within the Piping Systems segment.

2016 Acquisition

On April 26, 2016, the Company entered into an agreement providing for the purchase of a 60 percent equity interest in Jungwoo-Mueller for approximately $20.5 million in cash.  Jungwoo-Mueller, which manufactures copper-based pipe joining products, is headquartered in Seoul, South Korea and serves markets worldwide.  This business complements the Company'sCompany’s existing copper fittings businesses in the Piping Systems segment and is reported in the Company'sCompany’s Consolidated Financial Statements one month in arrears.

2015 Acquisitions

Great Lakes Copper

On July 31, 2015, the Company entered into a Share Purchase Agreement with Great Lakes Copper, Inc. providing for the purchase of all of the outstanding shares of Great Lakes Copper Ltd. (Great Lakes) for $70.0 million in cash, including a $1.5 million post-closing working capital adjustment.  Great Lakes manufactures copper tube products in Canada.  This acquisition complements the Company'sCompany’s existing copper tube businesses in the Piping Systems segment.  

Sherwood Valve Products

On June 18, 2015, the Company entered into a Membership Interest Purchase Agreement with Sherwood Valve Products LLC (Sherwood)Inc. providing for the purchase of all of the outstanding equity interests of Sherwood Valve LLC (Sherwood) for $21.8 million in cash, net of a post-closing working capital adjustment.  Sherwood manufactures valves and fluid control solutions for the HVAC, refrigeration, and compressed gas markets.  The acquisition of Sherwood complements our existing compressed gas business in the Industrial Metals segment.  


Turbotec Products, Inc.

On March 30, 2015, the Company entered into a Stock Purchase Agreement with Turbotec Products Inc. (Turbotec)PLC providing for the purchase of all of the outstanding capital stock of Turbotec Products, Inc. (Turbotec) for approximately $14.1 million in cash, net of a post-closing working capital adjustment. Turbotec manufactures coaxial heat exchangers and twisted tubes for the heating, ventilation, and air-conditioning (HVAC), geothermal, refrigeration, swimming pool heat pump, marine, ice machine, commercial boiler, and heat reclamation markets.  The acquisition of Turbotec complements the Company'sCompany’s existing refrigeration business, a component of the Climate segment.

2014 Acquisition

Yorkshire Copper Tube

On February 28, 2014, the Company entered into a definitive agreement with KME Yorkshire Limited to acquire certain assets and assume certain liabilities of its copper tube business.  Yorkshire Copper Tube (Yorkshire) produces European standard copper distribution tubes.   The purchase price was approximately $30.1 million, paid in cash.  The acquisition of Yorkshire complements the Company's existing copper tube businesses in the Piping Systems segment.  

These acquisitions were accounted for using the acquisition method of accounting whereby the total purchase price was allocated to tangible and intangible assets acquired and liabilities assumed based on respective fair values.

The following table summarizes the allocation of the purchase price to acquire these businesses, which was financed by available cash balances, as well as the assets acquired and liabilities assumed at the respective acquisition dates.  The purchase price allocation for Jungwoo-MuellerHeatlink Group is provisional as of December 31, 201630, 2017 and subject to change upon completion of the final valuation of the long-lived assets during the measurement period.  During 2016,2017, the valuation of the Great LakesJungwoo-Mueller acquisition was finalized and a deferred tax liability of $4.1 million was recorded that resultedchanges to the purchase price allocation from a basis differencethe amounts presented in the long-lived assets acquired.  This resulted in an increase in goodwill.Company’s 2016 Consolidated Financial Statements were immaterial.

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(in thousands) Heatlink Group Jungwoo-Mueller Great Lakes Sherwood Turbotec
           
Total consideration $16,317
 $20,533
 $70,011
 $21,795
 $14,138
           
Allocated to:    
  
  
  
Accounts receivable 2,809
 5,551
 26,079
 6,490
 1,936
Inventories 4,648
 17,616
 15,233
 11,892
 3,247
Other current assets 508
 1,437
 22
 260
 72
Property, plant, and equipment 2,024
 24,191
 22,771
 10,327
 9,080
Goodwill 4,071
 223
 23,208
(1) 

 2,088
Intangible assets 6,413
 756
 27,468
 (38) 880
Other assets 
 277
 1,413
 
 59
Total assets acquired 20,473
 50,051
 116,194
 28,931
 17,362
           
Accounts payable 3,633
 7,252
 36,026
 6,022
 1,603
Accrued wages & other employee costs 
 
 
 471
 356
Other current liabilities 523
 577
 381
 487
 51
Long-term debt 
 8,659
 
 
 
Pension and other postretirement liabilities 
 799
 5,655
 
 
Other noncurrent liabilities 
 582
 4,121
 156
 1,214
Total liabilities assumed 4,156
 17,869
 46,183
 7,136
 3,224
           
Noncontrolling interest 
 11,649
 
 
 
           
Net assets acquired $16,317
 $20,533
 $70,011
 $21,795
 $14,138

(in thousands) Jungwoo-Mueller  Great Lakes  Sherwood  Turbotec  Yorkshire 
                
Total consideration $20,533  $70,011  $21,795  $14,138  $30,137 
                     
Allocated to:                    
Accounts receivable  5,551   26,079   6,490   1,936    
Inventories  17,616   15,233   11,892   3,247   17,579 
Other current assets  1,437   22   260   72   1,034 
Property, plant, and equipment  24,191   22,771   10,327   9,080   2,103 
Goodwill  442   23,208
(1) 
     2,088   8,075
(1) 
Intangible assets  756   27,468   (38)  880   16,937 
Other assets  58   1,413      59    
Total assets acquired  50,051   116,194   28,931   17,362   45,728 
                     
Accounts payable  7,252   36,026   6,022   1,603   10,188 
Accrued wages & other employee costs        471   356   1,167 
Other current liabilities  577   381   487   51   4,236 
Long-term debt  8,659             
Pension and other postretirement liabilities  799   5,655          
Other noncurrent liabilities  582   4,121   156   1,214    
Total liabilities assumed  17,869   46,183   7,136   3,224   15,591 
                     
Noncontrolling interest  11,649             
                     
Net assets acquired $20,533  $70,011  $21,795  $14,138  $30,137 
                     
(1) Tax-deductible goodwill
   
                 
(1) Tax-deductible goodwill

The fair value of the noncontrolling interest at Jungwoo-Mueller was determined based on the proportionate share of consideration transferred and adjusted for lack of control and marketability based on the average of the classic put option model and the Finnerty Formula.


The following details the total intangible assets identified in the allocation of the purchase price at the respective acquisition dates:

(in thousands)Estimated Useful Life Jungwoo-Mueller  Great Lakes  Turbotec  Yorkshire 
              
Intangible asset type:             
Customer relationships20 years $  $20,273  $350  $10,699 
Non-compete agreements3-5 years     2,269   90   4,504 
Patents and technology10-15 years  756   3,104   220    
Trade names and licenses5-10 years     2,453   220   1,055 
Other2-5 years     (631)     679 
                  
Total intangible assets  $756  $27,468  $880  $16,937 
                  
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(in thousands) Estimated Useful Life Heatlink Group Jungwoo-Mueller Great Lakes Turbotec
           
Intangible asset type:          
Customer relationships 20 years $4,265
 $
 $20,273
 $350
Non-compete agreements 3-5 years 74
 
 2,269
 90
Patents and technology 10-15 years 1,466
 756
 3,104
 220
Trade names, licenses, and other 5-10 years 608
 
 1,822
 220
           
Total intangible assets   $6,413
 $756
 $27,468
 $880
INDEX
2017 Disposition

On June 21, 2017, the Company entered into a definitive equity transfer agreement with Jiangsu Xingrong Hi-Tech Co. Ltd. and Jiangsu Baiyang Industries Co. Ltd. (Baiyang), together, the minority partners in Mueller-Xingrong (the Company’s Chinese joint venture), pursuant to which the Company sold its 50.5 percent equity interest in Mueller-Xingrong to Baiyang for approximately $18.3 million. Mueller-Xingrong manufactured engineered copper tube primarily for air-conditioning applications in China and was included in the Piping Systems segment. Mueller-Xingrong reported net sales of $67.3 million and net losses of $9 thousand in 2017, compared to net sales of $121.5 million and net income of $62 thousand in 2016, and net sales of $155.9 million and net income of $555 thousand in 2015. The carrying value of the assets disposed totaled $56.8 million, consisting primarily of accounts receivable, inventories, and long-lived assets. The carrying value of the liabilities disposed (consisting primarily of current debt and accounts payable), noncontrolling interest, and amounts recognized in accumulated other comprehensive income (AOCI) totaled $36.2 million. Since the disposal constituted a complete liquidation of the Company’s investment in a foreign entity, the Company removed from AOCI and recognized a cumulative translation gain of $3.8 million. As a result of the disposal, the Company recognized a net gain on the sale of this business of $1.5 million in the Consolidated Financial Statements.

2015 Disposition

On June 1, 2015, the Company sold certain assets.  Simultaneously, the Company entered into a lease agreement with the purchaser of the assets for their continued use for a period of approximately 22 months (Lease Period).

The total sales price was $20.2 million, of which $5.0 million was received on June 1, 2015, and $5.0 million was received on December 30, 2016; the remaining2016, and $10.2 million will bewas received at the end of the Lease Period.on August 28, 2017.  This transaction resulted in a pre-tax gain of $15.4 million in the second quarter of 2015, or 17 cents per diluted share after tax.  This gain was recognized in the Piping Systems segment.

The net book value of the assets disposed was $2.3 million.  For goodwill testing purposes, these assets were part of the Domestic Piping Systems (DPS) reporting unit, which is a component of the Company'sCompany’s Piping Systems segment.  Because these assets met the definition of a business, $2.4 million of the DPS reporting unit'sunit’s goodwill balance was allocated to the disposal group based on the relative fair values of the asset group that was disposed and the portion of the DPS reporting unit that was retained.

2014 Dispositions

On November 21, 2014, the Company entered into a Share Purchase Agreement with Travis Perkins PLC to sell all of the outstanding capital stock of Mueller Primaflow Limited (Primaflow), the Company's United Kingdom based plumbing and heating systems import distribution business, for approximately $24.9 million.  Primaflow, which serves markets in the United Kingdom and Ireland, was included in the Piping Systems segment and reported net sales of $57.5 million and after-tax net income of $4.4 million for the 2014 fiscal year.  The carrying value of the assets disposed totaled $25.3 million, consisting primarily of accounts receivable and inventories.  The carrying value of the liabilities disposed totaled $7.1 million, consisting primarily of accounts payable and other current liabilities.  In addition, the Company recognized a cumulative translation loss of $6.0 million.  The net gain on the sale of this business was immaterial to the Consolidated Financial Statements.

During November 2014, the Company sold its ABS plastic pipe manufacturing assets.  These assets had a carrying value of approximately $1.9 million and were part of the DPS reporting unit, which is a component of the Piping Systems segment.  The sales price was $6.0 million, which resulted in a pre-tax gain of $4.1 million.

Note 3 –Segment Information

The Company'sCompany’s reportable segments are Piping Systems, Industrial Metals, and Climate.  Each of the reportable segments is composed of certain operating segments that are aggregated primarily by the nature of products offered as follows:

Piping Systems

Piping Systems is composed of the following operating segments: DPS, Canadian Operations,Great Lakes Copper, Heatlink Group, European Operations, Trading Group, Mueller-Xingrong (the Company's Chinese joint venture), and Jungwoo-Mueller (the Company'sCompany’s South Korean joint venture).  DPS manufactures copper tube and fittings, plastic fittings, and line sets.  These products are manufactured in the U.S., sold in the U.S., and exported to markets worldwide.  Outside the U.S., the Canadian Operations manufactureGreat Lakes Copper manufactures copper tube and line sets in Canada and sellsells the products primarily in the U.S. and Canada, Heatlink Group produces a complete line of products for PEX plumbing and radiant systems in Canada and sells these products in Canada and the U.S., and the European Operations manufacture copper tube in the U.K. which is sold primarily in Europe.  The Trading Group manufactures pipe nipples and imports and resells brass and plastic plumbing valves,

malleable iron fittings, faucets, and plumbing specialty products in the U.S. and Mexico.  Mueller-Xingrong manufactures engineered copper tube primarily for air-conditioning applications in China.  Jungwoo-Mueller manufactures copper-based joining products that are sold worldwide.  The Piping Systems segment'ssegment’s products are sold primarily to plumbing, refrigeration, and air-conditioning wholesalers, hardware wholesalers and co-ops, building product retailers, and air-conditioning original equipment manufacturers (OEMs).OEMs.

During 2017, the segment recognized a gain of $1.5 million on the sale of the Company’s interest in Mueller-Xingrong and impairment charges of $1.5 million on certain copper fittings manufacturing equipment.

During 2016, the segment recognized impairment charges of $6.1 million on fixed assets used for product development.
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TheDuring 2015, the segment recognized approximately $3.4 million of severance costs related to the reorganization of the European Operations as a result of the acquisition of Yorkshire during 2015, compared to $7.3 millionCopper Tube in 2014. The Company does not expect to incur further severance costs for the rationalization of the business.

Industrial Metals

Industrial Metals is composed of the following operating segments: Brass Rod & Copper Bar Products, Impacts & Micro Gauge, and Brass Value-Added Products.  These businesses manufacture brass rod, impact extrusions, and forgings, as well as a wide variety of end products including plumbing brass, automotive components, valves, fittings, and gas assemblies.  These products are manufactured in the U.S. and sold primarily to OEMs in the U.S., many of which are in the industrial, transportation, construction, heating, ventilation, and air-conditioning, plumbing, refrigeration, and refrigerationenergy markets.

During 2016, the segment recognized impairment charges of $0.7 million on fixed assets related to the rationalization of Sherwood.

Climate

Climate is composed of the following operating segments: Refrigeration Products, Fabricated Tube Products, Westermeyer, and Turbotec.  These domestic businesses manufacture and fabricate valves, assemblies, high pressure components, and coaxial heat exchangers primarily for the heating, ventilation, air-conditioning, and refrigeration markets in the U.S.

Performance of segments is generally evaluated by their operating income.  Summarized product line, geographic, and segment information is shown in the following tables.  Geographic sales data indicates the location from which products are shipped.  Unallocated expenses include general corporate expenses, plus certain charges or credits not included in segment activity.

During 2017, 2016, 2015, and 2014,2015, no single customer exceeded 10 percent of worldwide sales.

Net Sales by Major Product Line:

(In thousands) 2016  2015  2014 
          
Tube and fittings $1,072,242  $1,053,761  $1,143,164 
Brass rod and forgings  371,237   436,456   556,985 
OEM components, tube & assemblies  327,327   342,651   345,991 
Valves and plumbing specialties  209,217   198,012   262,504 
Other  75,599   69,122   55,583 
             
  $2,055,622  $2,100,002  $2,364,227 
             
Geographic Information:
(In thousands) 2017 2016 2015
       
Tube and fittings $1,260,105
 $1,072,242
 $1,053,761
Brass rod and forgings 450,063
 371,237
 436,456
OEM components, tube & assemblies 272,567
 327,327
 342,651
Valves and plumbing specialties 200,409
 209,217
 198,012
Other 82,929
 75,599
 69,122
       
  $2,266,073
 $2,055,622
 $2,100,002

(In thousands) 2016  2015  2014 
          
Net sales:         
United States $1,400,893  $1,519,456  $1,752,548 
United Kingdom  197,039   240,823   326,832 
Canada  237,162   97,967   9,807 
Asia  149,875   162,664   194,495 
Mexico  70,653   79,092   80,545 
             
  $2,055,622  $2,100,002  $2,364,227 
             
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Geographic information (continued):

(In thousands) 2016  2015  2014 
          
Long-lived assets:         
United States $223,099  $223,398  $203,522 
United Kingdom  15,978   19,982   21,766 
Canada  18,928   20,460    
Asia  36,722   15,863   19,765 
Mexico  504   521   857 
             
  $295,231  $280,224  $245,910 
             
Geographic Information:

(In thousands) 2017 2016 2015
       
Net sales:      
United States $1,556,825
 $1,400,893
 $1,519,456
United Kingdom 231,039
 197,039
 240,823
Canada 280,140
 237,162
 97,967
Asia 121,295
 149,875
 162,664
Mexico 76,774
 70,653
 79,092
       
  $2,266,073
 $2,055,622
 $2,100,002

(In thousands) 2017 2016 2015
       
Long-lived assets:      
United States $238,752
 $223,099
 $223,398
United Kingdom 17,661
 15,978
 19,982
Canada 21,327
 18,928
 20,460
Asia 25,973
 36,722
 15,863
Mexico 608
 504
 521
       
  $304,321
 $295,231
 $280,224

Summarized segment information is as follows:

  For the Year Ended December 31, 2016 
(In thousands) Piping Systems  Industrial Metals  Climate  Corporate and Eliminations  Total 
                
Net sales $1,429,589  $521,060  $119,758  $(14,785) $2,055,622 
                     
Cost of goods sold  1,228,949   420,905   89,927   (16,282)  1,723,499 
Depreciation and amortization  22,421   8,162   2,437   2,113   35,133 
Selling, general, and administrative expense  68,218   13,162   9,661   46,458   137,499 
Impairment charges  6,115   663         6,778 
                     
Operating income  103,886   78,168   17,733   (47,074)  152,713 
                     
Interest expense                  (7,387)
Other income, net                  704 
                     
Income before income taxes                 $146,030 
  For the Year Ended December 30, 2017
(In thousands) Piping Systems Industrial Metals Climate Corporate and Eliminations Total
           
Net sales $1,564,950
 $602,131
 $131,448
 $(32,456) $2,266,073
           
Cost of goods sold 1,369,161
 506,973
 98,851
 (34,368) 1,940,617
Depreciation and amortization 21,777
 7,516
 2,513
 2,138
 33,944
Selling, general, and administrative expense 74,479
 11,890
 9,759
 43,452
 139,580
Gain on sale of businesses (1,491) 
 
 
 (1,491)
Impairment charges 1,466
 
 
 
 1,466
           
Operating income 99,558
 75,752
 20,325
 (43,678) 151,957
           
Interest expense  
  
  
  
 (19,502)
Environmental expense         (7,284)
Other income, net  
  
  
  
 1,801
           
Income before income taxes  
  
  
  
 $126,972

  For the Year Ended December 26, 2015 
(In thousands) Piping Systems  Industrial Metals  Climate  Corporate and Eliminations  Total 
                
Net sales $1,436,689  $567,467  $110,727  $(14,881) $2,100,002 
                     
Cost of goods sold  1,245,929   491,567   86,894   (14,688)  1,809,702 
Depreciation and amortization  22,559   7,503   2,257   2,289   34,608 
Selling, general, and administrative expense  66,903   10,955   9,117   43,383   130,358 
Gain on sale of assets  (15,376)           (15,376)
Severance  3,442            3,442 
                     
Operating income  113,232   57,442   12,459   (45,865)  137,268 
                     
Interest expense                  (7,667)
Other income, net                  2,188 
                     
Income before income taxes                 $131,789 
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Segment information (continued):

  For the Year Ended December 27, 2014 
(In thousands) Piping Systems  Industrial Metals  Climate  Corporate and Eliminations  Total 
                
Net sales $1,622,921  $659,847  $99,336  $(17,877) $2,364,227 
                     
Cost of goods sold  1,409,581   572,979   79,099   (17,940)  2,043,719 
Depreciation and amortization  22,221   6,998   1,845   2,671   33,735 
Selling, general, and administrative expense  71,524   7,660   7,363   45,193   131,740 
Gain on sale of assets  (6,259)           (6,259)
Severance  7,296            7,296 
                     
Operating income  118,558   72,210   11,029   (47,801)  153,996 
                     
Interest expense                  (5,740)
Other expense, net                  (243)
                     
Income before income taxes                 $148,013 
  For the Year Ended December 31, 2016
(In thousands) Piping Systems Industrial Metals Climate Corporate and Eliminations Total
           
Net sales $1,429,589
 $521,060
 $119,758
 $(14,785) $2,055,622
           
Cost of goods sold 1,228,949
 420,905
 89,927
 (16,282) 1,723,499
Depreciation and amortization 22,421
 8,162
 2,437
 2,113
 35,133
Selling, general, and administrative expense 68,218
 13,162
 9,661
 46,458
 137,499
Impairment charges 6,115
 663
 
 
 6,778
           
Operating income 103,886
 78,168
 17,733
 (47,074) 152,713
           
Interest expense  
  
  
  
 (7,387)
Environmental expense         (1,279)
Other income, net  
  
  
  
 1,983
           
Income before income taxes  
  
  
  
 $146,030

(In thousands) 2016  2015  2014 
          
Expenditures for long-lived assets (including those resulting from business acquisitions):         
Piping Systems $56,286  $41,900  $30,727 
Industrial Metals  3,302   16,603   7,965 
Climate  2,045   12,373   2,183 
General Corporate  55   136   401 
             
  $61,688  $71,012  $41,276 
             
Segment assets:            
Piping Systems $826,663  $811,343  $786,229 
Industrial Metals  160,478   153,102   159,572 
Climate  66,968   61,672   38,268 
General Corporate  393,367   312,684   344,027 
             
  $1,447,476  $1,338,801  $1,328,096 
  For the Year Ended December 26, 2015
(In thousands) Piping Systems Industrial Metals Climate Corporate and Eliminations Total
           
Net sales $1,436,689
 $567,467
 $110,727
 $(14,881) $2,100,002
           
Cost of goods sold 1,245,929
 491,567
 86,894
 (14,688) 1,809,702
Depreciation and amortization 22,559
 7,503
 2,257
 2,289
 34,608
Selling, general, and administrative expense 66,903
 10,955
 9,117
 43,383
 130,358
Gain on sale of businesses (15,376) 
 
 
 (15,376)
Severance 3,442
 
 
 
 3,442
           
Operating income 113,232
 57,442
 12,459
 (45,865) 137,268
           
Interest expense  
  
  
  
 (7,667)
Environmental expense         (46)
Other income, net  
  
  
  
 2,234
           
Income before income taxes  
  
  
  
 $131,789


Segment information (continued):

(In thousands) 2017 2016 2015
Expenditures for long-lived assets (including those resulting from business acquisitions):      
Piping Systems $18,124
 $56,286
 $41,900
Industrial Metals 5,322
 3,302
 16,603
Climate 2,191
 2,045
 12,373
General Corporate 22,518
 55
 136
       
  $48,155
 $61,688
 $71,012

During the fourth quarter of 2017, the Company took early delivery of a Corporate aircraft to replace its existing aircraft. Subsequent to year-end, the existing aircraft was taken out of service and classified as held-for-sale, and the Company expects to recognize an impairment charge of approximately $3.3 million in the first quarter of 2018. The Company expects to sell the aircraft in 2018.

Segment assets:  
  
  
Piping Systems $801,468
 $826,663
 $811,343
Industrial Metals 212,638
 160,478
 153,102
Climate 73,458
 66,968
 61,672
General Corporate 232,609
 393,367
 312,684
       
  $1,320,173
 $1,447,476
 $1,338,801

Note 4 – Inventories

(In thousands) 2016  2015 
       
Raw materials and supplies $57,387  $58,987 
Work-in-process  42,227   25,161 
Finished goods  149,288   161,410 
Valuation reserves  (6,889)  (6,180)
         
Inventories $242,013  $239,378 
(In thousands) 2017 2016
     
Raw materials and supplies $108,397
 $57,387
Work-in-process 46,158
 42,227
Finished goods 180,143
 149,288
Valuation reserves (6,797) (6,889)
     
Inventories $327,901
 $242,013

Inventories valued using the LIFO method totaled $26.5 million at December 30, 2017 and $14.4 million at December 31, 2016 and $27.6 million at December 26, 2015.2016.  At December 31, 201630, 2017 and December 26, 2015,31, 2016, the approximate FIFO cost of such inventories was $76.6$111.0 million and $80.7$76.6 million, respectively.  Additionally, the Company values certain inventories purchased for resale on an average cost basis.  The value of those inventories was $43.9 million at December 30, 2017 and $43.8 million at December 31, 2016 and $48.8 million at December 26, 2015.2016.
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During 2016, inventory quantities valued using the LIFO method declined, which resulted in liquidation of LIFO inventory layers.  This liquidation resulted primarily from intercompany sales; therefore $2.5 million of the $3.3 million loss related to the LIFO liquidation was deferred.deferred at the end of 2016.  The deferred loss will increaseincreased cost of goods sold in the first quarter of 2017 when the inventory iswas sold to third parties.

During September 2017, the Company experienced a casting outage at its brass rod mill which impaired its ability to melt scrap returns, causing an excess build of $38.9 million in inventory.

At the end of 20162017 and 2015,2016, the FIFO value of inventory consigned to others was $2.5$4.4 million and $3.7$2.5 million, respectively.


Note 5 – Consolidated Financial Statement Details

Other Current Liabilities

Included in other current liabilities were accrued discountsas of December 30, 2017 and allowances of $40.4 million at December 31, 2016 were the following: (i) accrued discounts, allowances, and $46.6customer rebates of $39.5 million at December 26, 2015 and $40.4 million, respectively, (ii) current taxes payable of $9.2 million and $4.6 million, at December 31, 2016respectively, (iii) accrued interest of $5.9 million and $10.3$0.3 million, at December 26, 2015.respectively, and (iv) current environmental liabilities of $4.3 million and $0.8 million, respectively.

Other (Expense) Income, Net

(In thousands) 2016  2015  2014 
          
Interest income $1,185  $1,029  $573 
Environmental expense, non-operating properties  (1,279)  (46)  (822)
Other  798   1,205   6 
             
Other income (expense), net $704  $2,188  $(243)
(In thousands) 2017 2016 2015
       
Interest income $684
 $1,185
 $1,029
Other 1,117
 798
 1,205
       
Other income, net $1,801
 $1,983
 $2,234

Note 6 – Derivative Instruments and Hedging Activities

The Company'sCompany’s earnings and cash flows are subject to fluctuations due to changes in commodity prices, foreign currency exchange rates, and interest rates.  The Company uses derivative instruments such as commodity futures contracts, foreign currency forward contracts, and interest rate swaps to manage these exposures.

Commodity Futures Contracts

Copper and brass represent the largest component of the Company'sCompany’s variable costs of production.  The cost of these materials is subject to global market fluctuations caused by factors beyond the Company'sCompany’s control.  The Company occasionally enters into forward fixed-price arrangements with certain customers; the risk of these arrangements is generally managed with commodity futures contracts.  These futures contracts have been designated as cash flow hedges.  

At December 31, 2016,30, 2017, the Company held open futures contracts to purchase approximately $10.2$19.6 million of copper over the next 12 months related to fixed price sales orders.  The fair value of those futures contracts was a $0.8$1.0 million net gain position, which was determined by obtaining quoted market prices (level 1 within the fair value hierarchy).  In the next twelve months, the Company will reclassify into earnings realized gains or losses relating to cash flow hedges.  At December 31, 2016,30, 2017, this amount was approximately $0.3$0.7 million of deferred net gains, net of tax.

The Company may also enter into futures contracts to protect the value of inventory against market fluctuations.  At December 31, 2016,30, 2017, the Company held open futures contracts to sell approximately $28.7$85.3 million of copper over the next threefive months related to copper inventory.  The fair value of those futures contracts was a $0.3$3.2 million net loss position, which was determined by obtaining quoted market prices (level 1 within the fair value hierarchy).  


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Interest Rate Swap

On February 20, 2013, the Company entered into a two-year forward-starting interest rate swap agreement with an effective date of January 12, 2015, and an underlying notional amount of $200.0 million, pursuant to which the Company receives variable interest payments based on one-month LIBOR and pays fixed interest at a rate of 1.4 percent.  Based on the Company's current variable premium pricing on its revolving credit facility, the all-in fixed rate  is 2.49 percent.  The interest rate swap will mature on December 11, 2017, and is structured to offset the interest rate risk associated with the Company's floating-rate, LIBOR-based revolving credit facility.   The swap was designated and accounted for as a cash flow hedge at inception. During the fourth quarter of 2016 the Company discontinued hedge accounting prospectively.

The fair value of the interest rate swap is estimated based on the present value of the difference between expected cash flows calculated at the contracted interest rate and the expected cash flows at the current market interest rate using observable benchmarks for LIBOR forward rates at the end of the period (level 2 within the fair value hierarchy).  Interest payable and receivable under the swap agreement is accrued and recorded as an adjustment to interest expense.  The fair value of the interest rate swap was a $0.8 million loss position recorded in other current liabilities at December 31, 2016, and there was $0.6 million of deferred net losses, net of tax, included in AOCI that are expected to be reclassified into interest expense over the term of the interest rate swap.

The Company presents its derivative assets and liabilities in the Consolidated Balance Sheets on a net basis by counterparty.  The following table summarizes the location and fair value of the derivative instruments and disaggregates the net derivative assets and liabilities into gross components on a contract-by-contract basis:

 Asset Derivatives Liability Derivatives 
    Fair Value   Fair Value 
(In thousands)Balance Sheet Location 2016  2015 Balance Sheet Location 2016  2015 
Hedging instrument:              
    Commodity contracts - gainsOther current assets $1,013  $60 Other current liabilities $564  $238 
    Commodity contracts - lossesOther current assets  (148)   Other current liabilities  (920)  (1,864)
    Interest rate swapOther current assets       Other current liabilities  (787)   
    Interest rate swapOther assets       Other liabilities     (1,692)
                   
Total derivatives (1)
  $865  $60   $(1,143) $(3,318)
                   
(1) Does not include the impact of cash collateral provided to counterparties.
 
  Asset Derivatives Liability Derivatives
     Fair Value   Fair Value
(In thousands) Balance Sheet Location 2017 2016 Balance Sheet Location 2017 2016
             
Commodity contracts - gains Other current assets $1,014
 $1,013
 Other current liabilities $55
 $564
Commodity contracts - losses Other current assets (5) (148) Other current liabilities (3,210) (920)
Interest rate swap Other current assets 
 
 Other current liabilities 
 (787)
             
Total derivatives (1)
   $1,009
 $865
   $(3,155) $(1,143)
(1) Does not include the impact of cash collateral provided to counterparties.

The following tables summarize the effects of derivative instruments on the Consolidated Statements of Income:

(In thousands)Location 2016 2015 
Fair value hedges:      
    (Loss) gain on commodity contracts (qualifying)Cost of goods sold $(420) $3,374 
    Gain (loss) on hedged item - InventoryCost of goods sold  382   (3,665)
(In thousands) Location 2017 2016
Fair value hedges:      
Loss on commodity contracts (qualifying) Cost of goods sold $(724) $(420)
Gain on hedged item - inventory Cost of goods sold 625
 382
       
Undesignated derivatives:      
(Loss) gain on commodity contracts (nonqualifying) Cost of goods sold $(6,078) $4,068

Undesignated derivatives:       
    Gain on commodity contracts (nonqualifying)Cost of goods sold $4,068   $3,474 



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The following tables summarize amounts recognized in and reclassified from AOCI during the period:

  Year Ended December 31, 2016 
(In thousands) Gain (Loss) Recognized in AOCI (Effective Portion), Net of Tax 
Classification Gains (Losses)
 
Loss (Gain)
Reclassified from AOCI (Effective Portion), Net of Tax
 
Cash flow hedges:       
Commodity contracts $308 Cost of goods sold $1,078 
Interest rate swap  305 Interest expense  231 
Other  (213)Other   
Total $400 Total $1,309 
  Year Ended December 30, 2017
(In thousands) (Loss) Gain Recognized in AOCI (Effective Portion), Net of Tax Classification Gains (Losses) Loss Reclassified from AOCI (Effective Portion), Net of Tax
Cash flow hedges:      
Commodity contracts $(574) Cost of goods sold $990
Interest rate swap 
 Interest expense 546
Other 185
 Other 
       
Total $(389) Total $1,536

  Year Ended December 26, 2015 
(In thousands) (Loss) Gain Recognized in AOCI (Effective Portion), Net of Tax Classification Gains (Losses) 
Loss (Gain)
Reclassified from AOCI (Effective Portion), Net of Tax
 
Cash flow hedges:       
Commodity contracts $(3,817)Cost of goods sold $3,310 
Interest rate swap  (727)Interest expense  238 
Other  (60)Other   
Total $(4,604)Total $3,548 

Derivative instruments and hedging activities (continued):
  Year Ended December 31, 2016
(In thousands) Gain (Loss) Recognized in AOCI (Effective Portion), Net of Tax Classification Gains (Losses) Loss Reclassified from AOCI (Effective Portion), Net of Tax
Cash flow hedges:      
Commodity contracts $308
 Cost of goods sold $1,078
Interest rate swap 305
 Interest expense 231
Other (213) Other 
       
Total $400
 Total $1,309

The Company enters into futures and forward contracts that closely match the terms of the underlying transactions.  As a result, the ineffective portion of the qualifying open hedge contracts through December 31, 201630, 2017 was not material to the Consolidated Statements of Income.

The Company primarily enters into International Swaps and Derivatives Association master netting agreements with major financial institutions that permit the net settlement of amounts owed under their respective derivative contracts.  Under these master netting agreements, net settlement generally permits the Company or the counterparty to determine the net amount payable for contracts due on the same date and in the same currency for similar types of derivative transactions.  The master netting agreements generally also provide for net settlement of all outstanding contracts with the counterparty in the case of an event of default or a termination event.  The Company does not offset fair value amounts for derivative instruments and fair value amounts recognized for the right to reclaim cash collateral.  At December 31, 201630, 2017 and December 26, 2015,31, 2016, the Company had recorded restricted cash in other current assets of $1.4$5.3 million and $2.6$1.4 million, respectively, as collateral related to open derivative contracts under the master netting arrangements.

Note 7 – Property, Plant, and Equipment, Net

(In thousands) 2016  2015 
       
Land and land improvements $19,928  $13,046 
Buildings  144,914   128,322 
Machinery and equipment  607,344   597,209 
Construction in progress  30,344   47,746 
         
   802,530   786,323 
Less accumulated depreciation  (507,299)  (506,099)
         
Property, plant, and equipment, net $295,231  $280,224 
         
During the fourth quarter of 2016, the Company acquired the land, building, and manufacturing equipment of an idled copper tube mill in Cedar City, Utah.
(In thousands) 2017 2016
     
Land and land improvements $18,740
 $19,928
Buildings 144,527
 144,914
Machinery and equipment 649,667
 607,344
Construction in progress 9,274
 30,344
     
  822,208
 802,530
Less accumulated depreciation (517,887) (507,299)
     
Property, plant, and equipment, net $304,321
 $295,231

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Note 8 – Goodwill and Other Intangible Assets

Goodwill

The changes in the carrying amount of goodwill by segment were as follows:

(In thousands) Piping Systems  Industrial Metals  Climate  Total  Piping Systems Industrial Metals Climate Total
                    
Goodwill $141,132  $8,853  $2,329  $152,314  $156,387
 $8,854
 $4,416
 $169,657
Accumulated impairment charges  (40,552)  (8,853)     (49,405) (40,552) (8,853) 
 (49,405)
                
Balance at December 27, 2014:  100,580      2,329   102,909 
                
Additions  19,087   1   2,087   21,175 
Disposition  (2,418)        (2,418)
Currency translation  (1,414)        (1,414)
                        
Balance at December 26, 2015:   115,835   1   4,416   120,252  115,835
 1
 4,416
 120,252
                        
Additions (1)
  4,601         4,601  4,601
 
 
 4,601
Currency translation  (860)        (860) (860) 
 
 (860)
                        
Balance at December 31, 2016:                 119,576
 1
 4,416
 123,993
        
Additions (2)
 3,852
 
 
 3,852
Currency translation 2,448
 
 
 2,448
        
Balance at December 30, 2017:  
  
  
  
Goodwill  160,128   8,854   4,416   173,398  166,428
 8,854
 4,416
 179,698
Accumulated impairment charges  (40,552)  (8,853)     (49,405) (40,552) (8,853) 
 (49,405)
                        
Goodwill, net $119,576  $1  $4,416  $123,993  $125,876
 $1
 $4,416
 $130,293
                
(1) Includes finalization of the purchase price allocation adjustment for Great Lakes of $4.1 million
 
(1) Includes finalization of the purchase price allocation adjustment for Great Lakes of $4.1 million.
(2) Includes finalization of the purchase price allocation adjustment for Jungwoo-Mueller of $0.2 million.
Reporting units with recorded goodwill include DPS, B&K LLC, Great Lakes, Heatlink Group, European Operations, Turbotec, Sherwood,Jungwoo-Mueller, Westermeyer, and Jungwoo-Mueller.Turbotec.  Several factors give rise to goodwill in the Company'sCompany’s acquisitions, such as the expected benefit from synergies of the combination and the existing workforce of the acquired businesses.  There were no impairment charges resulting from the 2017, 2016, 2015, or 20142015 annual impairment tests as the estimated fair value of each of the reporting units exceeded its carrying value.  

Other Intangible Assets

The carrying amount of intangible assets at December 30, 2017 was as follows:

 
(In thousands)
 Gross Carrying Amount Accumulated Amortization Net Carrying Amount
       
Customer relationships $36,518
 $(4,644) $31,874
Non-compete agreements 2,834
 (1,497) 1,337
Patents and technology 7,673
 (1,868) 5,805
Trade names and licenses 4,977
 (1,575) 3,402
Other 213
 (623) (410)
       
Other intangible assets $52,215
 $(10,207) $42,008

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The carrying amount of intangible assets at December 31, 2016 was as follows:

 
(In thousands)
 Gross Carrying Amount Accumulated Amortization Net Carrying Amount
       
Customer relationships $29,833
 $(2,845) $26,988
Non-compete agreements 5,926
 (4,063) 1,863
Patents and technology 5,922
 (1,179) 4,743
Trade names and licenses 4,087
 (1,032) 3,055
Other 213
 (694) (481)
       
Other intangible assets $45,981
 $(9,813) $36,168
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The carrying amount of intangible assets at December 26, 2015 was as follows:

 
(In thousands)
 Gross Carrying Amount  Accumulated Amortization  Net Carrying Amount 
          
Customer relationships $30,882  $(1,488) $29,394 
Non-compete agreements  6,534   (2,838)  3,696 
Patents and technology  9,798   (5,323)  4,475 
Trade names and licenses  4,160   (574)  3,586 
Other  213   (728)  (515)
             
Other intangible assets $51,587  $(10,951) $40,636 
             
Amortization expense for intangible assets was $3.1 million in 2017, $4.3 million in 2016, and $4.1 million in 2015, and $3.5 million in 2014.2015.  Future amortization expense is estimated as follows:

(In thousands) Amount 
    
2017 $2,996 
2018  2,735 
2019  2,655 
2020  2,458 
2021  2,272 
Thereafter  23,052 
     
Expected amortization expense $36,168 
 
 
    
(In thousands) Amount
   
2018 $3,338
2019 3,253
2020 3,017
2021 2,747
2022 2,851
Thereafter 26,802
   
Expected amortization expense $42,008

Note 9 – Investment in Unconsolidated Affiliates

During the third quarter of 2015, theThe Company entered into a joint venture agreement with affiliates of Atlas Holdings LLC to form the Joint Venture, which simultaneously entered into a definitive merger agreement with MA Industrial Sub, Inc. and Tecumseh to commence a cash tender offer to acquire all of the outstanding shares of Tecumseh.  On September 21, 2015, the tender offer and back-end merger was completed and Mueller contributed $65.9 million forowns a 50 percent ownership interest in the Joint Venture.an unconsolidated affiliate that acquired Tecumseh.  The Company also owns a 50 percent interest in a second unconsolidated affiliate that provides financing to Tecumseh.  Tecumseh is a global manufacturer of hermetically sealed compressors for residential and specialty air conditioning, household refrigerators and freezers, and commercial refrigeration applications, including air conditioning and refrigeration compressors, as well as condensing units, heat pumps, and complete refrigeration systems.

The following tables present summarized financial information derived from the Company'sCompany’s equity method investees'investees’ combined consolidated financial statements, which are prepared in accordance with U.S. GAAP. The income statement data is reflective of the period since the acquisition of the investees.

(In thousands) 2016  2015 
       
Balance sheet data:      
Current assets $244,323  $251,389 
Noncurrent assets  130,400   112,156 
Current liabilities  148,806   178,784 
Noncurrent liabilities  71,681   63,643 
         
Income statement data:        
Net sales $579,400  $ 
Gross profit  79,600    
Net income  3,720    

F-41

(In thousands) 2017 2016
     
Current assets $246,127
 $244,323
Noncurrent assets 139,200
 130,400
Current liabilities 174,710
 148,806
Noncurrent liabilities 58,334
 71,681
     
Net sales $556,600
 $579,400
Gross profit 75,600
 79,600
Net (loss) income (4,153) 3,720

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Included in the equity method investees'investees’ net income for the twelve months ended September 30, 2016 is a gain of $17.1 million that resulted from the allocation of the purchase price, which was finalized during theTecumseh’s quarter ended December 31, 2015.  That gain was offset by restructuring and impairment charges of $5.3 million and net losses of $8.1 million.

On December 30, 2015, the Company entered into a joint venture agreement with Cayan Ventures and Bahrain Mumtalakat Holding Company to build a copper tube mill in Bahrain. The business will operate and brand its products under the Mueller Industries family of brands. The Company has invested approximately $3.9 million of cash to date and will be the technical and marketing lead in return for 40 percent ownership in the joint venture.

Note 10 – New Markets Tax Credit TransactionTransactions

On October 18, 2016, the Company entered into a financing transaction with Wells Fargo Community Investment Holdings, LLC (Wells Fargo) related to an equipment modernization project at the Company'sCompany’s copper tube and line sets production facilities in Fulton, MS.  Wells Fargo made a capital contribution and the Company made a loan to MCTC Investment Fund, LLC (Investment Fund) under a qualified New Markets Tax Credit (NMTC) program.  The NMTC program was provided for in the Community Renewal Tax Relief Act of 2000 (Act)(CRTR Act) and is intended to induce capital investment in qualified lower income communities.  The CRTR Act permits taxpayers to claim credits against their Federal income taxes for up to 39%39 percent of qualified investments in the equity of community development entities (CDEs).  CDEs are privately managed investment institutions that are certified to make qualified low-income community investments.

In connection with the financing, the Company loaned $13.7 million aggregate principal amount of a 1.0%one percent loan (Leverage Loan) due October 17, 2041, to the Investment Fund.  Additionally, Wells Fargo contributed $6.6 million to the Investment Fund, and as such, Wells Fargo is entitled to substantially all of the benefits derived from the NMTCs.  The Investment Fund then contributed the proceeds to certain CDEs, which, in turn, loaned the funds on similar terms as the Leverage Loan to Mueller Copper Tube Company, Inc. (MCTC), an indirect, wholly-owned subsidiary of the Company.  The proceeds of the loans from the CDEs, including loans representing the capital contribution made by Wells Fargo, net of syndication fees, are restricted for use on the modernization project.  At December 31, 2016, after qualifying capital expenditures, MCTC held restricted cash of $6.6 million, which is included in other current assets in the accompanying Consolidated Balance Sheets.

The NMTC is subject to 100%100 percent recapture for a period of seven years as provided in the Internal Revenue Code.  The Company is required to comply with various regulations and contractual provisions that apply to the NMTC arrangement.  Non-compliance with applicable requirements could result in projected tax benefits not being realized and, therefore, require the Company to indemnify Wells Fargo for any loss or recapture of NMTCs related to the financing until such time as the Company'sCompany’s obligation to deliver tax benefits is relieved.  The Company does not anticipate any credit recaptures will be required in connection with this arrangement.  This transaction also includes a put/call provision whereby the Company may be obligated or entitled to repurchase Wells Fargo'sFargo’s interest in the Investment Fund.  The Company believes that Wells Fargo will exercise the put option in October 2023, at the end of the recapture period.  The value attributed to the put/call is negligible.

The Company has determined that the financing arrangement with the Investment Fund and CDEs is a variable interest entity (VIE), and that it is the primary beneficiary of the VIE.  This conclusion was reached based on the following:

·The ongoing activities of the VIE, collecting and remitting interest and fees, and NMTC compliance were all considered in the initial design and are not expected to significantly affect economic performance throughout the life of the VIE;
·Contractual arrangements obligate the Company to comply with NMTC rules and regulations and provide various other guarantees to the Investment Fund and CDEs;
·Wells Fargo lacks a material interest in the underling economics of the project; and
·The Company is obligated to absorb losses of the VIE.

Because the Company is the primary beneficiary of the VIE, it has been included in the Company'sCompany’s Consolidated Financial Statements.  Wells Fargo'sFargo’s contribution of $6.6 million was initially recorded as restricted cash and its interest in the Investment Fund is included in other liabilities.



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Note 11 – Debt

(In thousands) 2016  2015 
       
Revolving Credit Facility with interest at 2.49%, due 2021 $200,000  $ 
Term Loan Facility, due 2017     200,000 
Mueller-Xingrong credit facility with interest at 4.35%, due 2017  3,048   5,275 
Jungwoo-Mueller credit facility with interest at 2.82%, due 2017  4,724    
Jungwoo-Mueller credit facility with interest at 3.28%, due 2018  7,990    
2001 Series IRB's with interest at 1.23%, due through 2021  4,250   5,250 
Debt Issuance Costs  (957)   
Other  8,309   5,485 
         
   227,364   216,010 
Less current portion of debt  (13,655)  (11,760)
         
Long-term debt $213,709  $204,250 
(In thousands) 2017 2016
     
Subordinated Debentures with interest at 6.00%, due 2027 $284,536
 $
Revolving Credit Facility with interest at 3.06%, due 2021 160,000
 200,000
Jungwoo-Mueller credit facility with interest at 2.72%, due 2018 5,119
 4,724
Jungwoo-Mueller credit facility with interest at 3.19%, due 2017 8,648
 7,990
2001 Series IRB's with interest at 2.22%, due 2021 3,250
 4,250
Mueller-Xingrong credit facility 
 3,048
Other 4,694
 8,309
  466,247
 228,321
     
Less debt issuance costs (1,175) (957)
Less current portion of debt (16,480) (13,655)
     
Long-term debt $448,592
 $213,709

Subordinated Debentures

On December 6, 2016,March 9, 2017, the Company entered intodistributed a credit agreement (Credit Agreement) providingspecial dividend of $3.00 in cash and $5.00 in principal amount of the Company’s 6% Subordinated Debentures (Debentures) due March 1, 2027 for each share of common stock outstanding. Interest on the Debentures is payable semiannually on September 1 and March 1 and commenced on September 1, 2017. At issuance, the Debentures were recorded at their estimated fair value.  The fair value of the Debentures was estimated based on quoted market prices for the same or similar issues, the current rates offered to the Company for debt of the same remaining maturities, or the use of market standard models.

The Debentures are subordinated to all other funded debt of the Company and are callable, in whole or in part, at any time at the option of the Company, subject to declining call premiums during the first five years. The Debentures also grant each holder the right to require the Company to repurchase such holder’s Debentures in the event of a change in control at declining repurchase premiums during the first five years. The Debentures may be redeemed, subject to the conditions set forth above, at the following redemption price (expressed as a percentage of principal amount) plus any accrued but unpaid interest to, but excluding, the redemption date:

If redeemed during the 12-month period beginning March 9:

Year Redemption Price
   
2017 106%
2018 105
2019 104
2020 103
2021 102
2022 and thereafter 100

The effect of the special dividend was a decrease in stockholders’ equity of approximately $458.7 million, an increase in long-term debt of approximately $284.5 million, and a decrease in cash of approximately $174.2 million.

Revolving Credit Facility

The Company’s Credit Agreement provides for an unsecured $350.0 million revolving credit facility (Revolving Credit Facility) whichthat matures on December 6, 2021.  The Company used the borrowings under the Revolving Credit Facility to replace the amounts previously advanced under the Term Loan Facility, the Company's previous credit facility.  Borrowings under the Revolving Credit Facility bear interest, at the Company'sCompany’s option, at

LIBOR or Base Rate as defined by the Credit Agreement, plus a variable premium.  LIBOR advances may be based upon the one, three, or six-month LIBOR.  The variable premium is based upon the Company'sCompany’s debt to total capitalization ratio, and can range from 112.5 to 162.5 basis points for LIBOR based loans and 12.5 to 62.5 basis points for Base Rate loans.  At December 31, 2016,30, 2017, the premium was 115.0150.0 basis points for LIBOR loans and 15.050.0 basis points for Base Rate loans.  Additionally, a commitment fee is payable quarterly on the total commitment less any outstanding loans or issued letters of credit, and varies from 15.0 to 30.0 basis points based upon the Company'sCompany’s debt to total capitalization ratio.  Availability of funds under the Revolving Credit Facility is reduced by the amount of certain outstanding letters of credit, which are used to secure the Company'sCompany’s payment of insurance deductibles and certain retiree health benefits, totaling approximately $7.0$8.4 million at December 31, 2016.30, 2017.  Terms of the letters of credit are generally renewable annually.

On March 23, 2016, Mueller-Xingrong entered into a secured revolving credit agreement with a total borrowing capacity of RMB 150 million (or approximately $21.7 million).  In addition, Mueller-Xingrong occasionally finances working capital through various accounts receivable and bank draft discount arrangements.  Borrowings are secured by the real property and equipment and bank draft receivables of Mueller-Xingrong and bear interest at the latest base-lending rate published by the People's Bank of China.Jungwoo-Mueller

Jungwoo-Mueller has several secured revolving credit arrangements with a total borrowing capacity of KRW 35.729.9 billion (or approximately $30.3$27.5 million).  Borrowings are secured by the real property and equipment of Jungwoo-Mueller.

Covenants contained in the Company'sCompany’s financing obligations require, among other things, the maintenance of minimum levels of tangible net worth and the satisfaction of certain minimum financial ratios.  At December 31, 2016,30, 2017, the Company was in compliance with all debt covenants.




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Aggregate annual maturities of the Company'sCompany’s debt are as follows:

(In thousands) Amount 
    
2017 $13,655 
2018  9,212 
2019  1,222 
2020  1,222 
2021  200,472 
Thereafter  2,538 
     
Long-term debt $228,321 
(In thousands) Amount
   
2018 $16,480
2019 1,222
2020 1,222
2021 160,472
2022 222
Thereafter 286,629
   
Long-term debt $466,247

Net interest expense consisted of the following:

(In thousands) 2016  2015  2014 
          
Interest expense $7,749  $8,335  $6,393 
Capitalized interest  (362)  (668)  (653)
             
  $7,387  $7,667  $5,740 
(In thousands) 2017 2016 2015
       
Interest expense $19,716
 $7,749
 $8,335
Capitalized interest (214) (362) (668)
       
  $19,502
 $7,387
 $7,667

Interest paid in 2017, 2016, and 2015 and 2014 was $13.8 million, $7.1 million, $8.1 million, and $5.7$8.1 million, respectively.





























F-44




Note 12 – Benefit Plans

Pension and Other Postretirement Plans

The Company sponsors several qualified and nonqualified pension plans and other postretirement benefit plans for certain employees.  The following tables provide a reconciliation of the changes in the plans'plans’ benefit obligations and the fair value of the plans'plans’ assets for 20162017 and 2015,2016, and a statement of the plans'plans’ aggregate funded status:

  Pension Benefits  Other Benefits 
(In thousands) 2016  2015  2016  2015 
Change in benefit obligation:            
Obligation at beginning of year $192,761  $207,738  $15,843  $19,307 
Service cost  532   803   232   363 
Interest cost  7,553   8,032   594   1,005 
Actuarial loss (gain)  9,399   (9,163)  (249)  270 
Plan amendments        43   (9,094)
Business acquisitions           5,655 
Benefit payments  (17,572)  (10,795)  (1,023)  (1,037)
Foreign currency translation adjustment  (13,937)  (3,854)  (166)  (626)
                 
Obligation at end of year  178,736   192,761   15,274   15,843 
                 
Change in fair value of plan assets:                
Fair value of plan assets at beginning of year  176,077   190,016       
Actual return on plan assets  19,319   (1,682)      
Employer contributions  2,377   1,513   1,023   1,037 
Benefit payments  (17,572)  (10,795)  (1,023)  (1,037)
Foreign currency translation adjustment  (11,061)  (2,975)      
                 
Fair value of plan assets at end of year  169,140   176,077       
                 
Underfunded status at end of year $(9,596) $(16,684) $(15,274) $(15,843)
                 
  Pension Benefits Other Benefits
(In thousands) 2017 2016 2017 2016
         
Change in benefit obligation:        
Obligation at beginning of year $178,736
 $192,761
 $15,274
 $15,843
Service cost 128
 532
 235
 232
Interest cost 6,344
 7,553
 599
 594
Actuarial loss (gain) 4,688
 9,399
 923
 (249)
Plan amendments 
 
 
 43
Benefit payments (10,171) (17,572) (883) (1,023)
Settlement charge 
 
 (209) 
Foreign currency translation adjustment 7,041
 (13,937) 468
 (166)
         
Obligation at end of year 186,766
 178,736
 16,407
 15,274
         
Change in fair value of plan assets:  
  
  
  
Fair value of plan assets at beginning of year 169,140
 176,077
 
 
Actual return on plan assets 19,175
 19,319
 
 
Employer contributions 2,271
 2,377
 883
 1,023
Benefit payments (10,171) (17,572) (883) (1,023)
Foreign currency translation adjustment 5,921
 (11,061) 
 
         
Fair value of plan assets at end of year 186,336
 169,140
 
 
         
Underfunded status at end of year $(430) $(9,596) $(16,407) $(15,274)

During 2016, the Company offered a lump sum window to certain inactive participants in one of its pension plans, resulting in incremental benefit payments of $7.0 million and a settlement charge of $1.2 million. 
During 2015, the Company amended one of its postretirement benefit plans to remove certain benefits, resulting in a $9.1 million reduction in the obligation.

The following represents amounts recognized in AOCI (before the effect of income taxes):

  Pension Benefits  Other Benefits 
(In thousands) 2016  2015  2016  2015 
             
Unrecognized net actuarial loss $39,986  $48,681  $614  $767 
Unrecognized prior service credit        (8,180)  (9,087)
                 
  Pension Benefits Other Benefits
(In thousands) 2017 2016 2017 2016
         
Unrecognized net actuarial loss $34,627
 $39,986
 $1,540
 $614
Unrecognized prior service credit 
 
 (7,289) (8,180)
 
The Company sponsors one pension plan in the U.K. which comprised 4244 and 4142 percent of the above benefit obligation at December 30, 2017 and December 31, 2016, and December 26, 2015, respectively, and 3639 and 3536 percent of the above plan assets at December 31, 201630, 2017 and December 26, 2015,31, 2016, respectively.

As of December 31, 2016, $2.230, 2017, $1.5 million of the actuarial net loss and $0.9 million of the prior service credit will, through amortization, be recognized as components of net periodic benefit cost in 2017.2018.
 

The aggregate status of all overfunded plans is recognized as an asset and the aggregate status of all underfunded plans is recognized as a liability in the Consolidated Balance Sheets.  The amounts recognized as a liability are classified as current or long-term on a plan-by-plan basis.  Liabilities are classified as current to the extent the actuarial present value of benefits payable within the next 12 months exceeds the fair value of plan assets, with all remaining amounts classified as long-term.  

F-45

As of December 31, 201630, 2017 and December 26, 2015,31, 2016, the total funded status of the plans recognized in the Consolidated Balance Sheets was as follows:

  Pension Benefits  Other Benefits 
 (In thousands) 2016  2015  2016  2015 
             
Long-term asset $4,442  $765  $  $ 
Current liability        (1,128)  (1,221)
Long-term liability  (14,038)  (17,449)  (14,146)  (14,622)
                 
Total underfunded status $(9,596) $(16,684) $(15,274) $(15,843)
                 
  Pension Benefits Other Benefits
  (In thousands)
 2017 2016 2017 2016
         
Long-term asset $9,894
 $4,442
 $
 $
Current liability 
 
 (1,070) (1,128)
Long-term liability (10,324) (14,038) (15,337) (14,146)
         
Total underfunded status $(430) $(9,596) $(16,407) $(15,274)

The components of net periodic benefit cost are as follows:

(In thousands) 2016  2015  2014 
Pension benefits:         
Service cost $532  $803  $973 
Interest cost  7,553   8,032   8,590 
Expected return on plan assets  (9,615)  (10,289)  (13,669)
Amortization of prior service cost        1 
Amortization of net loss  2,898   2,710   752 
Settlement charge  1,214       
             
Net periodic benefit cost (income) $2,582  $1,256  $(3,353)
             
Other benefits:            
Service cost $232  $363  $348 
Interest cost  594   1,005   685 
Amortization of prior service (credit) cost  (896)  6   6 
Amortization of net gain  (60)  (28)  (218)
             
Net periodic benefit (income) cost $(130) $1,346  $821 
             
(In thousands) 2017 2016 2015
Pension benefits:      
Service cost $128
 $532
 $803
Interest cost 6,344
 7,553
 8,032
Expected return on plan assets (9,374) (9,615) (10,289)
Amortization of net loss 2,206
 2,898
 2,710
Settlement charge 
 1,214
 
       
Net periodic benefit (income) cost $(696) $2,582
 $1,256
       
Other benefits:  
  
  
Service cost $235
 $232
 $363
Interest cost 599
 594
 1,005
Amortization of prior service (credit) cost (901) (896) 6
Amortization of net gain (42) (60) (28)
Settlement charge 17
 
 
       
Net periodic benefit (income) cost $(92) $(130) $1,346
 
The weighted average assumptions used in the measurement of the Company’s benefit obligations are as follows:

  Pension Benefits Other Benefits
  2017 2016 2017 2016
         
Discount rate 3.22% 3.61% 3.89% 4.21%
Expected long-term return on plan assets 5.27% 5.56% N/A
 N/A
Rate of compensation increases N/A
 N/A
 5.00% 5.00%
Rate of inflation 3.30% 3.30% N/A
 N/A


The weighted average assumptions used in the measurement of the Company's benefit obligations are as follows:

  Pension Benefits  Other Benefits 
  2016  2015  2016  2015 
             
Discount rate 3.61% 4.02% 4.21% 4.25%
Expected long-term return on plan assets 5.56% 5.59% N/A  N/A 
Rate of compensation increases N/A  N/A  5.00% 5.00%
Rate of inflation 3.30% 3.20% N/A  N/A 



F-46





The weighted average assumptions used in the measurement of the Company'sCompany’s net periodic benefit cost are as follows:

  Pension Benefits  Other Benefits 
  2016  2015  2014  2016  2015  2014 
                   
Discount rate 4.02% 4.03% 4.82% 4.25% 4.33% 4.89%
Expected long-term return on plan assets 5.59% 5.58% 7.40% N/A  N/A  N/A 
Rate of compensation increases N/A  N/A  N/A  5.00% 5.00% 5.50%
Rate of inflation 3.20% 3.10% 3.40% N/A  N/A  N/A 
  Pension Benefits Other Benefits
  2017 2016 2015 2017 2016 2015
             
Discount rate 3.61% 4.02% 4.03% 4.21% 4.25% 4.33%
Expected long-term return on plan assets 5.56% 5.59% 5.58% N/A
 N/A
 N/A
Rate of compensation increases N/A
 N/A
 N/A
 5.00% 5.00% 5.00%
Rate of inflation 3.30% 3.20% 3.10% N/A
 N/A
 N/A

The Company'sCompany’s Mexican postretirement plans use the rate of compensation increase in the benefit formulas.  Past service in the U.K. pension plan will be adjusted for the effects of inflation.  All other pension and postretirement plans use benefit formulas based on length of service.

The annual assumed rate of increase in the per capita cost of covered benefits (i.e., health care cost trend rate) is assumed to range from 6.86.6 to 8.310.1 percent for 2017,2018, gradually decrease to 3.0 percent through 2036, and remain at that level thereafter.  The health care cost trend rate assumption does not have a significant effect on the amounts reported.

Pension Assets

The weighted average asset allocation of the Company'sCompany’s pension fund assets are as follows:

  Pension Plan Assets 
Asset category 2016  2015 
       
Equity securities (includes equity mutual funds) 47% 51%
Fixed income securities (includes fixed income mutual funds) 48  37 
Cash and equivalents (includes money market funds) 3  9 
Alternative investments 2  3 
       
Total 100% 100%
  Pension Plan Assets
Asset category 2017 2016
     
Equity securities (includes equity mutual funds) 46% 47%
Fixed income securities (includes fixed income mutual funds) 48
 48
Cash and equivalents (includes money market funds) 3
 3
Alternative investments 3
 2
     
Total 100% 100%

At December 31, 2016,30, 2017, the long-term target allocation, by asset category, of assets of the Company'sCompany’s defined benefit pension plans was: (i) fixed income securities – at least 60 percent; (ii) equity securities, including equity index funds – not more than 30 percent; and (iii) alternative investments – not more than 5 percent.

The pension plan obligations are long-term and, accordingly, the plan assets are invested for the long-term.  Plan assets are monitored periodically.  Based upon results, investment managers and/or asset classes are redeployed when considered necessary.  None of the plans'plans’ assets are expected to be returned to the Company during the next fiscal year.  The assets of the plans do not include investments in securities issued by the Company.  

The estimated rates of return on plan assets are the expected future long-term rates of earnings on plan assets and are forward-looking assumptions that materially affect pension cost.  Establishing the expected future rates of return on pension assets is a judgmental matter.  The Company reviews the expected long-term rates of return on an annual basis and revises as appropriate.  The expected long-term rate of return on plan assets was 5.27 percent for 2017 and 5.56 percent for 2016 and 5.59 percent in 2015.2016.

The Company'sCompany’s investments for its pension plans are reported at fair value.  The following methods and assumptions were used to estimate the fair value of the Company'sCompany’s plan asset investments:

Cash and money market funds –Valued at cost, which approximates fair value.

Common stock –Valued at the closing price reported on the active market on which the individual securities are traded.
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Mutual funds – Valued at the net asset value of shares held by the plans at December 31, 201630, 2017 and December 26, 2015,31, 2016, respectively, based upon quoted market prices.

Limited partnerships –Limited partnerships include investments in various Cayman Island multi-strategy hedge funds.  The plans'plans’ investments in limited partnerships are valued at the estimated fair value of the class shares owned by the plans based upon the equity in the estimated fair value of those shares.  The estimated fair values of the limited partnerships are determined by the investment managers.  In determining fair value, the investment managers of the limited partnerships utilize the estimated net asset valuations of the underlying investment entities.  The underlying investment entities value securities and other financial instruments on a mark-to-market or estimated fair value basis.  The estimated fair value is determined by the investment managers based upon, among other things, the type of investments, purchase price, marketability, current financial condition, operating results, and other information.  The estimated fair values of substantially all of the investments of the underlying investment entities, which may include securities for which prices are not readily available, are determined by the investment managers or management of the respective underlying investment entities and may not reflect amounts that could be realized upon immediate sale.  Accordingly, the estimated fair values may differ significantly from the values that would have been used had a ready market existed for these investments.

The following table sets forth by level, within the fair value hierarchy, the assets of the plans at fair value:

 Fair Value Measurements at December 31, 2016 
 (In thousands)Level 1 Level 2 Level 3 Total 
         
Cash and money market funds  $4,245   $   $   $4,245 
Common stock (1)
   18,601            18,601 
Mutual funds (2)
   5,572    136,027        141,599 
Limited partnerships           4,695    4,695 
                     
Total  $28,418   $136,027   $4,695   $169,140 
                     
  Fair Value Measurements at December 30, 2017
  (In thousands)
 Level 1 Level 2 Level 3 Total
         
Cash and money market funds $5,364
 $
 $
 $5,364
Common stock (1)
 11,113
 
 
 11,113
Mutual funds (2)
 8,412
 156,442
 
 164,854
Limited partnerships 
 
 5,005
 5,005
         
Total $24,889
 $156,442
 $5,005
 $186,336
 
Fair Value Measurements at December 26, 2015  Fair Value Measurements at December 31, 2016
(In thousands)Level 1 Level 2 Level 3 Total  Level 1 Level 2 Level 3 Total
                        
Cash and money market funds  $16,632   $   $   $16,632  $4,245
 $
 $
 $4,245
Common stock (3)
   25,229            25,229  18,601
 
 
 18,601
Mutual funds (4)
   9,666    119,960        129,626  5,572
 136,027
 
 141,599
Limited partnerships           4,590    4,590  
 
 4,695
 4,695
                            
Total  $51,527   $119,960   $4,590   $176,077  $28,418
 $136,027
 $4,695
 $169,140

(1)
Approximately 91 percent of common stock represents investments in U.S. companies primarily in the health care, utilities, financials, consumer staples, industrials, and information technology sectors.  All investments in common stock are listed on U.S. stock exchanges.

(2)
Approximately 66 percent of mutual funds are actively managed funds and approximately 34 percent of mutual funds are index funds.  Additionally, five percent of the mutual funds’ assets are invested in U.S. equities, 41 percent in non-U.S. equities, 52 percent in U.S. fixed income securities, and two percent in non-U.S. fixed income securities.

(3)
Approximately 90 percent of common stock represents investments in U.S. companies primarily in the health care, utilities, financials, consumer staples, industrials, and information technology sectors.  All investments in common stock are listed on U.S. stock exchanges.

(2)
(4)
Approximately 68 percent of mutual funds are actively managed funds and approximately 32 percent of mutual funds are index funds.  Additionally, five percent of the mutual funds'funds’ assets are invested in U.S. equities, 38 percent in non-U.S. equities, 54 percent in U.S. fixed income securities, and three percent in non-U.S. fixed income securities.
(3)Approximately 89 percent of common stock represents investments in U.S. companies primarily in the health care, utilities, financials, consumer staples, industrials, and information technology sectors.  All investments in common stock are listed on U.S. stock exchanges.
(4)Approximately 67 percent of mutual funds are actively managed funds and approximately 33 percent of mutual funds are index funds.  Additionally, 12 percent of the mutual funds' assets are invested in U.S. equities, 38 percent in non-U.S. equities, 46 percent in U.S. fixed income securities, and 4 percent in non-U.S. fixed income securities.

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The table below reflects the changes in the assets of the plan measured at fair value on a recurring basis using significant unobservable inputs (level 3 of fair value hierarchy) during the year ended December 31, 2016:30, 2017:

 (In thousands) Limited Partnerships 
    
Balance, December 26, 2015 $4,590 
Redemptions  (196)
Subscriptions  196 
Net appreciation in fair value  105 
     
Balance, December 31, 2016 $4,695 
     
  (In thousands)
 Limited Partnerships
   
Balance, December 31, 2016 $4,695
Redemptions (283)
Subscriptions 273
Net appreciation in fair value 320
   
Balance, December 30, 2017 $5,005

Contributions and Benefit Payments

The Company expects to contribute approximately $0.9$1.0 million to its pension plans and $1.2 million to its other postretirement benefit plans in 2017.  The Company expects future benefits to be paid from the plans as follows:

(In thousands)  Pension Benefits  Other Benefits 
        
2017  $10,496  $1,179 
2018   10,491   1,100 
2019   10,496   1,052 
2020   10,431   1,294 
2021   10,388   1,102 
2022-2026    51,211   5,902 
           
Total  $103,513  $11,629 
           
(In thousands) Pension Benefits Other Benefits
     
2018 $10,423
 $1,177
2019 10,398
 1,056
2020 10,329
 1,277
2021 10,246
 1,129
2022 10,182
 1,157
2023-2027 49,965
 6,154
     
Total $101,543
 $11,950
 
 
Multiemployer Plan

The Company contributes to the IAM National Pension Fund, National Pension Plan (IAM Plan), a multiemployer defined benefit plan.  Participation in the IAM Plan was negotiated under the terms of two collective bargaining agreements in Port Huron, Michigan, the Local 218 IAM and Local 44 UAW that expire on May 5, 2019 and July 21, 2019, respectively.  The Employer Identification Number for this plan is 51-6031295.

The risks of participating in multiemployer plans are different from single-employer plans in the following aspects:  (i) assets contributed to the multiemployer plan by one employer may be used to provide benefits to employees of other participating employers; (ii) if a participating employer stops contributing to the plan, the underfunded obligations of the plan may be borne by the remaining participating employers; (iii) if the Company chooses to stop participating in the plan, the Company may be required to pay the plan an amount based on the underfunded status of the plan, referred to as a withdrawal liability.

The Company makes contributions to the IAM Plan trusts that cover certain union employees; contributions by employees are not permitted.  Contributions to the IAM Plan were approximately $1.1 million each year in 2017, 2016, $1.1 million in 2015, and $1.0 million in 2014.2015.  The Company'sCompany’s contributions are less than five percent of total employer contributions made to the IAM Plan indicated in the most recently filed Form 5500.

Under the Pension Protection Act of 2006, the IAM Plan'sPlan’s actuary must certify the plan'splan’s zone status annually.  Plans in the red zone are generally less than 65 percent funded, plans in the yellow zone are less than 80 percent funded, and plans in the green zone are at least 80 percent funded.  If a plan is determined to be in endangered status, red zone or yellow zone, the plan'splan’s trustees must develop a formal plan of corrective action, a Financial Improvement Plan and/or a Rehabilitation Plan.  For 20162017 and 20152016 the IAM Plan was determined to have green zone status; therefore, no formal plan of corrective action is either pending or has been implemented.
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401(k) Plans

The Company sponsors voluntary employee savings plans that qualify under Section 401(k) of the Internal Revenue Code of 1986.  Compensation expense for the Company'sCompany’s matching contribution to the 401(k) plans was $5.1 million in 2017, $5.2 million in 2016, and $4.2 million in 2015, and $4.1 million in 2014.2015.  The Company match is a cash contribution.  Participants direct the investment of their account balances by allocating among a range of asset classes including mutual funds (equity, fixed income, and balanced funds) and money market funds.  The plans do not allow direct investment in securities issued by the Company.

UMWA Benefit Plans

In October 1992, the Coal Industry Retiree Health Benefit Act of 1992 (1992 Act) was enacted.  The 1992 Act mandates a method of providing for postretirement benefits to the United Mine Workers of America (UMWA) current and retired employees, including some retirees who were never employed by the Company.  In October 1993, beneficiaries were assigned to the Company and the Company began its mandated contributions to the UMWA Combined Benefit Fund, a multiemployer trust.  Beginning in 1994, the Company was required to make contributions for assigned beneficiaries under an additional multiemployer trust created by the 1992 Act, the UMWA 1992 Benefit Plan.  The ultimate amount of the Company'sCompany’s liability under the 1992 Act will vary due to factors which include, among other things, the validity, interpretation, and regulation of the 1992 Act, its joint and several obligation, the number of valid beneficiaries assigned, and the extent to which funding for this obligation will be satisfied by transfers of excess assets from the 1950 UMWA pension plan and transfers from the Abandoned Mine Reclamation Fund.  Contributions to the plan were $182 thousand, $197 thousand, $214 thousand, and $249$214 thousand for the years ended 2017, 2016, 2015, and 2014,2015, respectively.

Note 13 – Commitments and Contingencies

Environmental

The Company is subject to federal, state, local, and foreign environmental laws and regulations.  For all properties, the Company has provided and charged to expense $7.5 million in 2017, $0.9 million in 2016, and $0.1 million in 2015 and $1.2 million in 2014 for pending environmental matters.  Environmental reserves totaled $28.0 million at December 30, 2017 and $21.9 million at December 31, 2016 and $21.7 million at December 26, 2015.2016.  As of December 31, 2016,30, 2017, the Company expects to spend $0.7$4.3 million in 2017,2018, $2.2 million in 2019, $2.1 million in 2020, $0.6 million in 2018,2021, $0.6 million in 2019, $0.7 million in 2020, $0.7 million in 2021,2022, and $18.6$18.2 million thereafter for ongoing projects.  

Non-operating Properties

Southeast Kansas Sites

The Kansas Department of Health and Environment (KDHE) has contacted the Company regarding environmental contamination at three former smelter sites in Kansas (Altoona, East La Harpe, and Lanyon).  The Company is not a successor to the companies that operated these smelter sites, but is exploring possible settlement with KDHE and other potentially responsible parties (PRP) in order to avoid litigation.  Another PRP conducted a site investigation of the Altoona site under a consent decree with KDHE and submitted a removal site evaluation report recommending a remedy.  The remedial design plan, which covers both on-site and certain off-site cleanup costs, was approved by the KDHE in 2016.  At the East La Harpe site, the Company and two other PRPs conducted a site study evaluation under KDHE supervision and prepared a site cleanup plan approved by KDHE.  In 2016, the corporate parent of a third party that the Company understands may owe indemnification obligations to one of the other PRPs in connection with the East La Harpe site filed for protection under Chapter 11 of the U.S. Bankruptcy Code.  KDHE has extended the deadline for the PRPs to develop a repository design plan to allow for wetlands permitting to take place.  With respect to the Lanyon Site, in 2016, the Company received a general notice letter from the United States Environmental Protection Agency (EPA) asserting that the Company is a PRP, which the Company has denied.  The Company'sCompany’s reserve for its proportionate share of the remediation costs associated with the Southeast Kansas sites is $5.6 million.

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Shasta Area Mine Sites

Mining Remedial Recovery Company (MRRC), a wholly owned subsidiary, owns certain inactive mines in Shasta County, California.  MRRC has continued a program, begun in the late 1980s, of implementing various remedial measures, including sealing mine portals with concrete plugs in portals whichthat were discharging water.  The sealing program achieved significant reductions in the metal load in discharges from these adits; however, additional reductions are required pursuant to an order issued by the California Regional Water Quality Control Board (QCB).  In response to a 1996 QCB Order, MRRC completed a feasibility study in 1997 describing measures designed to mitigate the effects of acid rock drainage.  In December 1998, the QCB modified the

1996 order extending MRRC'sMRRC’s time to comply with water quality standards.  In September 2002, the QCB adopted a new order requiring MRRC to adopt Best Management Practices (BMP) to control discharges of acid mine drainage, and again extended the time to comply with water quality standards until September 2007.  During that time, implementation of BMP further reduced impacts of acid rock drainage; however, full compliance has not been achieved.  The QCB is presently renewing MRRC'sMRRC’s discharge permit and will concurrently issue a new order.  It is expected that the new ten-year10-year permit will include an order requiring continued implementation of BMP through 2025 to address residual discharges of acid rock drainage.  At this site, MRRC spent approximately $1.2 million from 20142015 through 20162017 for remediation, and currently estimates that it will spend between approximately $13.2$12.8 million and $20.9$17.6 million over the next 30 years.

Lead Refinery Site

U.S.S. Lead Refinery, Inc. (Lead Refinery), a non-operating wholly owned subsidiary of MRRC, has conducted corrective action and interim remedial activities (collectively, Site Activities) at Lead Refinery'sRefinery’s East Chicago, Indiana site pursuant to the Resource Conservation and Recovery Act since December 1996.  Although the Site Activities have been substantially concluded, Lead Refinery is required to perform monitoring and maintenance-related activities pursuant to a post-closure permit issued by the Indiana Department of Environmental Management effective as of March 2, 2013.  Lead Refinery spent approximately $0.5$0.6 million from 20142015 through 20162017 with respect to this site.  Approximate costs to comply with the post-closure permit, including associated general and administrative costs, are estimated at between $2.1$1.8 million and $4.7$3.0 million over the next 2019 years.
 
On April 9, 2009, pursuant to the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), the U.S. Environmental Protection Agency (EPA) added the Lead Refinery site and surrounding properties to the National Priorities List (NPL).  On July 17, 2009, Lead Refinery received a written notice from the EPA indicating that it may be a PRP under CERCLA due to the release or threat of release of hazardous substances including lead into properties surrounding the Lead Refinery NPL site.  The EPA identified two other PRPs in connection with that matter.  In November 2012, the EPA adopted a remedy for the surrounding properties and in September 2014, the EPA announced that it had entered into a settlement with the two other PRPs whereby they will pay approximately $26.0 million to fund the cleanup of approximately 300 properties surrounding the Lead Refinery NPL site (zones 1 and 3 of operable unit 1) and perform certain remedial action tasks.

On November 8, 2016, the Company, its subsidiary Arava Natural Resources Company, Inc. (Arava), and Arava'sArava’s subsidiary MRRC each received general notice letters from the EPA asserting that they may be PRPs in connection with the Lead Refinery NPL site.  The Company, Arava, and MRRC have denied liability for any remedial action and response costs associated with the Lead Refinery NPL site.  In June 2017, the EPA requested that Lead Refinery conduct, and the Company fund, a remedial investigation and feasibility study of operable unit 2 of the Lead Refinery NPL site pursuant to a proposed administrative settlement agreement and order on consent. The Company and Lead Refinery entered into that agreement in September 2017. The Company will make a capital contribution to Lead Refinery to conduct the remedial investigation and feasibility study with respect to operable unit 2 and provide a financial guarantee in the amount of $1.0 million. The EPA has also asserted its position that Mueller is a responsible party for the Lead Refinery NPL site, and accordingly is responsible for a share of remedial action and response costs at the site and in the adjacent residential area.

In January 2018, the EPA issued two unilateral administrative orders (UAOs) directing the Company, Lead Refinery, and four other PRPs to conduct soil and interior remediation of certain residences at the Lead Refinery NPL site (zones 2 and 3 of operable unit 1). The Company and Lead Refinery have reached agreement with the four other PRPs to implement these two UAOs, with the Company agreeing to pay, on an interim basis, (i) an estimated $4.5 million (subject to potential change through a future reallocation process) of the approximately $25.0 million the PRPs currently estimate it will cost to implement the UAOs, which estimate is subject to change, and (ii) $2.0 million relating to past costs incurred by other PRPs for work conducted at the site.  These amounts are included in the Company’s reserve for environmental liabilities as of December 30, 2017. The Company disputes that it was properly named in the UAOs, and has reserved its rights to petition the EPA for reimbursement of any costs incurred to comply with the UAOs upon the completion of the work required therein.  In October 2017, a group of private plaintiffs sued the Company, Arava, MRRC, and Lead Refinery, along with other defendants, in a private tort action relating to the site.  At this juncture, the Company is unable to determine the likelihood of a material adverse outcome or the amount or range of a potential loss in excess of the current reserve with respect to any remedial action or litigation relating to the Lead Refinery NPL site, either at Lead Refinery’s former operating site (operable unit 2) or the adjacent residential area (operable unit 1). 

Bonita Peak Mining District

Following an August 2015 spill from the Gold King Mine into the Animas River near Silverton, Colorado, the EPA listed the Bonita Peak Mining District on the NPL.  Said listing was finalized in September 2016.  The Bonita Peak Mining District encompasses 48 mining sites within the Animas River watershed, including the Sunnyside Mine, the American Tunnel, and the Sunbank Group.  On or about July 25, 2017, Washington Mining Company (Washington Mining) (a wholly-owned subsidiary of

the Company’s wholly-owned subsidiary, Arava), received a general notice letter from the EPA stating that Washington Mining may be a PRP under CERCLA in connection with the Bonita Peak Mining District site and therefore responsible for the remediation of certain portions of the site, along with related costs incurred by the EPA.  Shortly thereafter, the Company received a substantively identical letter asserting that it may be a PRP at the Site and similarly responsible for the cleanup of certain portions of the site.  The general notice letters identify one other PRP at the site, and do not require specific action by Washington Mining or the Company at this time.  At this juncture, the Company is unable to determine the likelihood of a materially adverse outcome or the amount or range of a potential loss with respect to any remedial action related to the Lead RefineryBonita Peak Mining District NPL site.

Operating Properties

Mueller Copper Tube Products, Inc.

In 1999, Mueller Copper Tube Products, Inc. (MCTP), a wholly owned subsidiary, commenced a cleanup and remediation of soil and groundwater at its Wynne, Arkansas plant to remove trichloroethylene, a cleaning solvent formerly used by MCTP.  On August 30, 2000, MCTP received approval of its Final Comprehensive Investigation Report and Storm Water Drainage Investigation Report addressing the treatment of soils and groundwater from the Arkansas Department of Environmental Quality (ADEQ).  The Company established a reserve for this project in connection with the acquisition of MCTP in 1998.  Effective November 17, 2008, MCTP entered into a Settlement Agreement and Administrative Order by Consent to submit a Supplemental Investigation Work Plan (SIWP) and subsequent Final Remediation Work Plan (RWP) for the site.  By letter dated January 20, 2010, ADEQ approved the SIWP as submitted, with changes acceptable to the Company.  On December 16, 2011, MCTP entered into an amended Administrative Order by Consent to prepare and implement a revised RWP regarding final remediation for the Site.  The remediation system was activated in February 2014.  Costs to implement the work plans, including associated general and administrative costs, are estimated to approximate $0.9$0.8 million to $1.4$1.2 million over the next nineeight years.

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United States Department of Commerce Antidumping Review

On December 24, 2008, the Department of Commerce (DOC) initiated an antidumping administrative review of the antidumping duty order covering circular welded non-alloy steel pipe and tube from Mexico for the November 1, 2007  through October 31, 2008 period of review.  The DOC selected Mueller Comercial as a respondent in the review.  On April 19, 2010, the DOC published the final results of the review and assigned Mueller Comercial an antidumping duty rate of 48.33 percent.  On May 25, 2010, the Company appealed the final results to the U.S. Court of International Trade (CIT).  On December 16, 2011, the CIT issued a decision remanding the Department'sDepartment’s final results.  While the matter was still pending, the Company and the United States reached an agreement to settle the appeal.  Subject to the conditions of the agreement, the Company anticipated that certain of its subsidiaries willwould incur antidumping duties on subject imports made during the period of review and, as such, established a reserve for this matter.  After the lapse of the statutory period of time during which U.S. Customs and Border Protection (CBP) was required, but failed, to liquidate the entries at the settled rate, the Company released the reserve.  Between October 30, 2015 and November 27, 2015, CBP sent a series of invoices to Southland Pipe Nipples Co., Inc. (Southland), requesting payment of approximately $3.0 million in duties and interest in connection with 795 import entries made during the November 1, 2007 through October 31, 2008 period.  On January 26, 2016 and January 27, 2016, Southland filed protests with CBP in connection with these invoices, noting that CBP'sCBP’s asserted claims were not made in accordance with applicable law, including statutory provisions governing deemed liquidation. The Company believes in the merits of the legal objections raised in Southland'sSouthland’s protests, and CBP'sCBP’s response to Southland'sSouthland’s protests is currently pending. Given the procedural posture of and issuedissues raised by this legal dispute, the Company cannot estimate the amount of potential duty liability, if any, that may result from CBP'sCBP’s asserted claims.

Equal Employment Opportunity Commission Matter

On October 5, 2016, the Company received a demand letter from the Los Angeles District Office of the United States Equal Employment Opportunity Commission (EEOC).  The EEOC alleges that between May 2011 and April 2015, various Company employees were terminated in violation of the Americans with Disabilities Act, (ADA), and that certain of the Company'sCompany’s employee leave and attendance policies were discriminatory in nature.  On that basis, the EEOC'sEEOC’s letter includes a demand for monetary relief on behalf of an identified class of 20 individuals, and an unidentified class of 150 individuals, in addition to injunctive relief.

The Company believes the EEOC'sEEOC’s allegations are without merit.  Notwithstanding the Company'sCompany’s position, in consultation with its liability insurers, the Company has entered into a conciliation process with the EEOC for purposes of resolving the claims.  On April 12, 2017, the Company received a letter from the EEOC stating that the conciliation process had concluded without a resolution of the claims, and avoidingthat the matter would be referred to its Legal Department for potential litigation. In connection with that conciliation effort, theThe Company has communicated toand the EEOC a monetary settlement proposal within its applicable insurance limits.  The conciliation process is ongoing.have since engaged in mediation efforts. Due to the procedural stage of this matter, the Company is unable to determine the likelihood of a material adverse outcome in this matter, or the amount or range of a potential loss in excess of any available insurance coverage.


Leases

The Company leases certain facilities, vehicles, and equipment under operating leases expiring on various dates through 2028.2033.  The lease payments under these agreements aggregate to approximately $7.4 million in 2017, $5.7$7.0 million in 2018, $3.3$5.2 million in 2019, $2.7$4.4 million in 2020, $2.5$3.5 million in 2021, $3.1 million in 2022, and $9.5$17.3 million thereafter.  Total lease expense amounted to $11.9 million in 2017, $11.6 million in 2016, and $9.7 million in 2015, and $9.8 million in 2014.2015.

Other

The Company is involved in certain litigation as a result of claims that arose in the ordinary course of business, which management believes will not have a material adverse effect on the Company'sCompany’s financial position, results of operations, or cash flows.  It may also realize the benefit of certain legal claims and litigation in the future; these gain contingencies are not recognized in the Consolidated Financial Statements.
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Note 14 – Income Taxes

The components of income before income taxes were taxed under the following jurisdictions:

(In thousands) 2016  2015  2014 
          
Domestic $103,576  $121,614  $135,445 
Foreign  42,454   10,175   12,568 
             
Income before income taxes $146,030  $131,789  $148,013 
             
(In thousands) 2017 2016 2015
       
Domestic $76,876
 $103,576
 $121,614
Foreign 50,096
 42,454
 10,175
       
Income before income taxes $126,972
 $146,030
 $131,789
 
Income tax expense consists of the following:

(In thousands) 2016  2015  2014 
          
Current tax expense:         
Federal $32,262  $50,272  $45,723 
Foreign  5,667   4,042   2,346 
State and local  3,210   4,886   3,905 
             
Current tax expense  41,139   59,200   51,974 
             
Deferred tax expense (benefit):            
Federal  2,004   (13,739)  (2,469)
Foreign  5,099   (1,180)  890 
State and local  (105)  (899)  (4,916)
             
Deferred tax (benefit) expense  6,998   (15,818)  (6,495)
             
Income tax expense $48,137  $43,382  $45,479 
             
No provision is made for U.S. income taxes applicable to undistributed earnings of foreign subsidiaries that are indefinitely reinvested in foreign operations.  It is not practicable to compute the potential deferred tax liability associated with these undistributed foreign earnings.  The Company has approximately $118.8 million of undistributed foreign earnings for which it has not recorded deferred tax liabilities.
(In thousands) 2017 2016 2015
       
Current tax expense:      
Federal $28,584
 $32,262
 $50,272
Foreign 10,219
 5,667
 4,042
State and local 2,241
 3,210
 4,886
       
Current tax expense 41,044
 41,139
 59,200
       
Deferred tax (benefit) expense:  
  
  
Federal (1,764) 2,004
 (13,739)
Foreign 1,118
 5,099
 (1,180)
State and local (2,514) (105) (899)
       
Deferred tax (benefit) expense (3,160) 6,998
 (15,818)
       
Income tax expense $37,884
 $48,137
 $43,382
 

The difference between the reported income tax expense and a tax determined by applying the applicable U.S. federal statutory income tax rate to income before income taxes is reconciled as follows:

(In thousands) 2016  2015  2014 
          
Expected income tax expense $51,110  $46,126  $51,805 
State and local income tax, net of federal benefit  1,982   2,673   3,355 
Effect of foreign statutory rate different from U.S. and other foreign adjustments  (4,092)  (654)  (1,094)
Valuation allowance changes        (5,732)
U.S. production activities deduction  (3,063)  (3,500)  (4,025)
Goodwill disposition     646    
Investment in unconsolidated affiliates  1,030       
Permanent adjustment to deferred tax liabilities     (4,218)   
Other, net  1,170   2,309   1,170 
             
Income tax expense $48,137  $43,382  $45,479 
(In thousands) 2017 2016 2015
       
Expected income tax expense $44,440
 $51,110
 $46,126
State and local income tax, net of federal benefit 1,135
 1,982
 2,673
Effect of foreign statutory rate different from U.S. and other foreign adjustments (6,026) (4,092) (654)
U.S. production activities deduction (1,575) (3,063) (3,500)
Goodwill disposition 
 
 646
Investment in unconsolidated affiliates 216
 1,030
 
Permanent adjustment to deferred tax liabilities 
 
 (4,218)
Benefit of stock-based compensation deductions (2,160) (656) 
Effect of tax on accumulated foreign earnings 12,893
 
 
Effect of tax rate change on net deferred tax liability balance (12,067) 
 
Other, net 1,028
 1,826
 2,309
       
Income tax expense $37,884
 $48,137
 $43,382

F-53The Tax Cuts and Jobs Act (the Act) was enacted on December 22, 2017. The Act reduces the U.S. federal corporate tax rate from 35 percent to 21 percent, requires companies to pay a one-time transition tax on the accumulated earnings of certain foreign subsidiaries, and creates new taxes on certain foreign-sourced earnings. At December 30, 2017, the Company has not completed its accounting for the tax effects of enactment of the Act. However, the Company has made a reasonable estimate of the one-time transition tax on accumulated foreign earnings as well as the impact of the Act on its existing deferred tax balances.


TABLE OF CONTENTSThe one-time transition tax is based on the Company’s total post-1986 earnings and profits (E&P) for which the accrual of U.S. income taxes has previously been deferred. The Company recorded a provisional amount for its one-time transition tax liability, resulting in an increase in income tax expense of $12.9 million, or 22 cents per diluted share. The Company has not yet completed its calculation of the total post-1986 foreign E&P for these foreign subsidiaries. Further, the transition tax is impacted in part by the amount of those earnings held in cash and other specified assets. Accordingly, the Company’s estimate of the one-time transition tax may change when it finalizes the calculation of post-1986 foreign E&P previously deferred from U.S. federal taxation and finalizes the amounts held in cash or other specified assets. Consistent with prior years, the Company continues to assert that the earnings subject to the transition tax are permanently reinvested. Accordingly, no additional income taxes have been provided for any additional outside basis differences that may exist with respect to these entities or any taxes that may be due upon the repatriation of these earnings. Determining the amount of unrecognized deferred tax liability related to any additional outside basis difference in these entities (i.e., basis differences other than those subject to the one-time transition tax) is not practicable due to the complexities of the hypothetical calculation in determining residual taxes on undistributed earnings, including the availability of foreign tax credits, applicability of any additional local withholding tax, and other indirect tax consequences that may arise due to the distribution of these earnings.
The Company remeasured certain deferred tax assets and liabilities based on the rates at which they are expected to reverse in the future, which is generally 21 percent. However, the Company is still analyzing certain aspects of the Act and refining its calculations, which could potentially affect the measurement of these balances. The provisional amount recorded related to the remeasurement of the deferred tax balance was an income tax benefit of $12.1 million, or 21 cents per diluted share.

The global intangible low-taxed income (GILTI) provisions of the Act impose a tax on the income of certain foreign subsidiaries in excess of a specified return on tangible assets used by the foreign companies. The FASB Staff Q&A, Topic 740, No. 5, Accounting for Global Intangible Low-Taxed Income, states that an entity can make an accounting policy election to either recognize deferred taxes for temporary basis differences expected to reverse as GILTI in future years or provide for the tax expense related to GILTI in the year the tax is incurred. Given the complexity of the GILTI provisions, the Company is still evaluating the effects of these provisions and has not yet determined the new accounting policy. Accordingly, the Company is unable to make a reasonable estimate and has not reflected any adjustments related to GILTI in its Consolidated Financial Statements.

During 2015, the Company had an adjustment to a deferred tax liability of $4.2 million, or seven cents per diluted share, resulting from the acquisition of a foreign subsidiary.

During 2014, the Company released a valuation allowance of $5.7 million, or 10 cents per diluted share, related to certain state income tax credits.  As a result of legislative changes enacted in 2014, the Company expects to be able to use such credits within the foreseeable future.

The Company includes interest and penalties related to income tax matters as a component of income tax expense.  The income tax expense related to penalties and interest was immaterial in 2017, 2016, 2015, and 2014.2015.

The Internal Revenue Service completed its audit of the Company'sCompany’s 2013 tax return induring 2016, and completed its audit of the Company's 2012 tax return during 2014, the results of which were immaterial to the Consolidated Financial Statements.  The Company is currently under audit in various other jurisdictions.

The statute of limitations is still open for the Company'sCompany’s federal tax return and most state income tax returns for 20132014 and all subsequent years.  The statutes of limitations for certain state and foreign returns are also open for some earlier tax years due to differing statute periods.  While the Company believes that it is adequately reserved for possible audit adjustments, the final resolution of these examinations cannot be determined with certainty and could result in final settlements that differ from current estimates.

The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities are presented below:

(In thousands) 2016  2015 
       
Deferred tax assets:      
Inventories $15,483  $14,802 
Other postretirement benefits and accrued items  13,180   15,294 
Pension  -   2,349 
Other reserves  9,821   9,823 
Federal and foreign tax attributes  5,813   7,403 
State tax attributes, net of federal benefit  22,572   21,716 
Share-based compensation  2,416   3,397 
Basis difference in unconsolidated affiliates  211     
         
Total deferred tax assets  69,496   74,784 
Less valuation allowance  (18,681)  (17,650)
         
Deferred tax assets, net of valuation allowance  50,815   57,134 
         
Deferred tax liabilities:        
Property, plant, and equipment  52,319   43,592 
Pension  4,633    
Other     1,546 
         
Total deferred tax liabilities  56,952   45,138 
         
Net deferred tax (liability) asset $(6,137) $11,996 
         
(In thousands) 2017 2016
     
Deferred tax assets:    
Inventories $10,598
 $15,483
Other postretirement benefits and accrued items 9,239
 13,180
Other reserves 9,029
 9,821
Federal and foreign tax attributes 11,936
 5,813
State tax attributes, net of federal benefit 29,720
 22,572
Stock-based compensation 2,102
 2,416
Basis difference in unconsolidated affiliates 
 211
     
Total deferred tax assets 72,624
 69,496
Less valuation allowance (30,316) (18,681)
     
Deferred tax assets, net of valuation allowance 42,308
 50,815
     
Deferred tax liabilities:  
  
Property, plant, and equipment 43,972
 52,319
Pension 3,841
 4,633
Basis difference in unconsolidated affiliates 203
 
     
Total deferred tax liabilities 48,016
 56,952
     
Net deferred tax liabilities $(5,708) $(6,137)

As of December 31, 2016,30, 2017, after consideration of the federal impact, the Company had state income tax credit carryforwards of $3.2$4.5 million, all of which expire by 2019,2020, and other state income tax credit carryforwards of $10.2$12.6 million with unlimited lives.  The Company had state net operating loss (NOL) carryforwards with potential tax benefits of $9.3$13.5 million expiring between 20182019 and 2031.2032.  The state tax credit and NOL carryforwards are offset by valuation allowances totaling $12.5$17.6 million.

As of December 31, 2016,30, 2017, the Company had foreign tax credits with potential tax benefits of $5.1 million, which were fully offset by a valuation allowance.

As of December 30, 2017, the Company had foreign tax attributes with potential tax benefits of $5.6$5.9 million which have an unlimited life.  These attributes were fully offset by a valuation allowances of $4.9 million.allowance.

Income taxes paid were approximately $42.5 million in 2017, $40.1 million in 2016, and $49.9 million in 2015, and $47.3 million in 2014.2015.
F-54


Note 15 – Equity

The Company'sCompany’s Board of Directors has extended, until October 2017,August 2018, its authorization to repurchase up to 20 million shares of the Company'sCompany’s common stock through open market transactions or through privately negotiated transactions.  The Company has no obligation to purchase any shares and may cancel, suspend, or extend the time period for the purchase of shares at any time.  Any purchases will be funded primarily through existing cash and cash from operations.  The Company may hold any shares purchased in treasury or use a portion of the repurchased shares for its stock-based compensation plans, as well as for other corporate purposes.  From its initial authorization in 1999 through December 31, 2016,30, 2017, the Company has repurchased approximately 4.7 million shares under this authorization.

Note 16 – Stock-Based Compensation

The Company has in effect stock incentive plans under which stock-based awards have been granted to certain employees and members of its Board of Directors.  Under these existing plans, the Company may grant options to purchase shares of common stock at prices not less than the fair market value of the stock on the date of grant, as well as restricted stock awards.  Generally, the awards vest within five years from the date of grant.  Any unexercised options expire after not more than ten years.  

During the years ended December 30, 2017, December 31, 2016, and December 26, 2015, and December 27, 2014, the Company recognized stock-based compensation, as a component of selling, general, and administrative expense, in its Consolidated Statements of Income of $7.5 million, $6.4 million, $6.2 million, and $6.3$6.2 million, respectively.  

Stock Options
The fair value of each option is estimated as a single award and amortized into compensation expense on a straight-line or accrual basis over its vesting period based on its vesting schedule.  The weighted average grant-date fair value of options granted during 2017, 2016, and 2015 was $9.38, $7.87, and 2014 was $7.87, $7.58, and $9.00, respectively.

The Company estimates the fair value of all stock option awards as of the grant date by applying the Black-Scholes-Merton option pricing model.  The use of this valuation model in the determination of compensation expense involves certain assumptions that are judgmental and/or highly sensitive including the expected life of the option, stock price volatility, risk-free interest rate, and dividend yield.  Additionally, forfeitures are not estimated at the time of valuation; they are recognized as they occur. The weighted average of key assumptions used in determining the fair value of options granted and a discussion of the methodology used to develop each assumption are as follows:
 
  2016  2015  2014 
          
Expected term 6.7 years  5.5 years  5.6 years 
Expected price volatility  25.6%   26.2%   34.3% 
Risk-free interest rate  1.6%   1.7%   1.7% 
Dividend yield  1.0%   0.9%   1.0% 
  2017 2016 2015
       
Expected term 7.7 years
 6.7 years
 5.5 years
Expected price volatility 28.9% 25.6% 26.2%
Risk-free interest rate 2.1% 1.6% 1.7%
Dividend yield 1.3% 1.0% 0.9%

Expected term – This is the period of time estimated based on historical experience over which the options granted are expected to remain outstanding.  An increase in the expected term will increase compensation expense.

Expected price volatility – This is a measure of the amount by which a price has fluctuated or is expected to fluctuate.  The Company uses actual historical changes in the market value of its stock to calculate the volatility assumption.  Daily market value changes from the date of grant over a past period representative of the expected term of the options are used.  An increase in the expected price volatility rate will increase compensation expense.

Risk-free interest rate – This is the U.S. Treasury rate for the week of the grant, having a term representative of the expected term of the options.  An increase in the risk-free rate will increase compensation expense.

F-55

Dividend yield – This rate is the annual dividends per share as a percentage of the Company'sCompany’s stock price.  An increase in the dividend yield will decrease compensation expense.

The total intrinsic value of options exercised was $10.2 million, $2.5 million, and $3.1 million in 2017, 2016, and $3.5 million in 2016, 2015, and 2014, respectively.  The total fair value of options that vested was $1.0 million, $0.3 million, and $0.8 million in 2017, 2016, and $1.0 million in 2016, 2015, and 2014, respectively.


At December 31, 2016,30, 2017, the aggregate intrinsic value of all outstanding options was $19.5$12.4 million with a weighted average remaining contractual term of 5.06.2 years.  Of the outstanding options, 655476 thousand are currently exercisable with an aggregate intrinsic value of $15.8$8.5 million, a weighted average exercise price of $16.02,$17.57, and a weighted average remaining contractual term of 3.24.5 years.  

The total compensation expense not yet recognized related to unvested options at December 31, 201630, 2017 was $1.4$1.9 million with an average expense recognition period of 2.33.5 years.

Restricted Stock Awards

The fair value of each restricted stock award equals the fair value of the Company'sCompany’s stock on the grant date and is amortized into compensation expense on a straight-line or accrual basis over its vesting period based on its vesting schedule.  The weighted average grant-date fair value of awards granted during 2017, 2016, and 2015 was $30.97, $34.04, and 2014 was $34.04, $32.54, and $28.80, respectively.

The aggregate intrinsic value of outstanding and unvested awards was $28.4$27.7 million at December 31, 2016.30, 2017.  Total compensation expense for restricted stock awards not yet recognized was $15.9$15.8 million with an average expense recognition period of 3.43.2 years.  The total fair value of awards that vested was $3.5 million, $4.7 million, and $4.8 million in 2017, 2016, and $4.2 million in 2016, 2015, and 2014, respectively.

The Company generally issues treasury shares when options are exercised or restricted stock awards are granted.  A summary of the activity and related information follows:

  Stock Options  Restricted Stock Awards 
 
(Shares in thousands)
 Shares  Weighted Average Exercise Price  Shares  Weighted Average Grant Date Fair Value 
             
Outstanding at December 26, 2015  1,198  $20.59   705  $28.08 
Granted  24   30.86   265   34.04 
Exercised  (178)  17.61   (188)  25.23 
Forfeited  (10)  30.79   (73)  28.53 
                 
Outstanding at December 31, 2016  1,034   21.24   709   31.02 
                 
  Stock Options Restricted Stock Awards
 
(Shares in thousands)
 Shares Weighted Average Exercise Price Shares Weighted Average Grant Date Fair Value
         
Outstanding at December 31, 2016 1,034
 $21.24
 709
 $31.02
Granted 165
 31.04
 209
 30.97
Exercised (395) 12.10
 (135) 26.22
Forfeited (10) 26.68
 (2) 33.13
Equitable Adjustment (1)
 153
   
 

         
Outstanding at December 30, 2017 947
 22.31
 781
 31.83
(1) Represents the adjustment made in conjunction with the special dividend issued on March 9, 2017 to equalize the intrinsic value of stock options pre- and post-distribution.

Approximately 1.00.7 million shares were available for future stock incentive awards at December 31, 2016.30, 2017.





F-56




Note 17 – Accumulated Other Comprehensive Income (Loss)

AOCI includes certain foreign currency translation adjustments from those subsidiaries not using the U.S. dollar as their functional currency, net deferred gains and losses on certain derivative instruments accounted for as cash flow hedges, adjustments to pension and OPEB liabilities, unrealized gains and losses on marketable securities classified as available-for-sale, and other comprehensive income attributable to unconsolidated affiliates.


The following table provides changes in AOCI by component, net of taxes and noncontrolling interest (amounts in parentheses indicate debits to AOCI):

(In thousands) Cumulative Translation Adjustment  Unrealized (Losses)/ Gains on Derivatives  
Minimum Pension/
OPEB Liability Adjustment
  Unrealized Gains on Equity Investments  Attributable to Unconsolidated Affiliates  Total 
                   
Balance at December 27, 2014 $(7,076) $(953) $(35,164) $270  $  $(42,923)
                         
Other comprehensive income (loss) before reclassifications  (17,697)  (4,604)  4,766   (49)     (17,584)
Amounts reclassified from AOCI     3,548   1,969         5,517 
                         
Balance at December 26, 2015  (24,773)  (2,009)  (28,429)  221      (54,990)
                         
Other comprehensive income (loss) before reclassifications  (25,192)  400   3,962   159   5,975   (14,696)
Amounts reclassified from AOCI     1,309   1,421         2,730 
                         
Balance at December 31, 2016 $(49,965) $(300) $(23,046) $380  $5,975  $(66,956)




F-57

TABLE OF CONTENTS
(In thousands) Cumulative Translation Adjustment Unrealized (Loss) Gain on Derivatives Pension/
OPEB Liability Adjustment
 Unrealized Gain on Equity Securities Attributable to Unconsol. Affiliates Total
             
Balance at December 26, 2015 $(24,773) $(2,009) $(28,429) $221
 $
 $(54,990)
             
Other comprehensive (loss) income before reclassifications (25,192) 400
 3,962
 159
 5,975
 (14,696)
Amounts reclassified from AOCI 
 1,309
 1,421
 
 
 2,730
             
Balance at December 31, 2016 (49,965) (300) (23,046) 380
 5,975
 (66,956)
             
Other comprehensive income (loss) before reclassifications 15,579
 (389) 1,394
 (1) 895
 17,478
Amounts reclassified from AOCI (3,777) 1,536
 1,042
 (379) 
 (1,578)
             
Balance at December 30, 2017 $(38,163) $847
 $(20,610) $
 $6,870
 $(51,056)

Reclassification adjustments out of AOCI were as follows:

  Amount reclassified from AOCI
(In thousands) 2016  2015  2014 Affected Line Item
                  
Unrealized losses on derivatives:                 
Commodity contracts $1,061  $4,486  $328 Cost of goods sold
Interest rate swap  361   372    Interest expense
   (113)  (1,310)  (61)Income tax expense
                     
   1,309   3,548   267 Net of tax
          Noncontrolling interest
                     
  $1,309  $3,548  $267 Net of tax and noncontrolling interest
 
                     
Amortization of net loss and prior service 
  cost on employee benefit plans
 $1,942  $2,688  $541 Selling, general, and administrative expense
   (521)  (719)  (72)Income tax expense
                     
   1,421   1,969   469 Net of tax
          Noncontrolling interest
                     
  $1,421  $1,969  $469 Net of tax and noncontrolling interest
 
                     
Loss recognized upon sale of business $  $  $5,999 Gain on sale of assets
          Income tax benefit
                     
         5,999 Net of tax
          Noncontrolling interest
                     
  $  $  $5,999 Net of tax and noncontrolling interest
                     

F-58

  Amount reclassified from AOCI
(In thousands) 2017 2016 2015 Affected Line Item
         
Unrealized losses on derivatives:               
Commodity contracts $1,309
 $1,061
 $4,486
 Cost of goods sold
Interest rate swap 851
 361
 372
 Interest expense
  (624) (113) (1,310) Income tax benefit
         
  $1,536
 $1,309
 $3,548
 Net of tax and noncontrolling interests
         
Amortization of net loss and prior service cost on employee benefit plans $1,263
 $1,942
 $2,688
 Selling, general, and administrative expense
  (221) (521) (719) Income tax benefit
         
  $1,042
 $1,421
 $1,969
 Net of tax and noncontrolling interests
         
Gain recognized upon sale of business $(3,777) $
 $
 Selling, general, and administrative expense
  
 
 
 Income tax expense
         
  $(3,777) $
 $
 Net of tax and noncontrolling interests
         
Sale of available-for-sale securities $(611) $
 $
 Other income
  232
 
 
 Income tax expense
         
  $(379) $
 $
 Net of tax and noncontrolling interests
         


Note 18 – Quarterly Financial Information (Unaudited)(8)(1)

  First  Second  Third  Fourth 
 (In thousands, except per share data)
 Quarter  Quarter  Quarter  Quarter 
              
 2016             
 Net sales $532,809  $544,071  $506,584   $472,158  
 Gross profit (1)
  86,167   88,011   81,916    76,029  
 Consolidated net income (2)
  28,665   28,259   26,062(3)  16,768(4)
 Net income attributable to Mueller Industries, Inc.  28,630   27,797   25,978    17,322  
 Basic earnings per share  0.51   0.49   0.46    0.31  
 Diluted earnings per share  0.50   0.49   0.45    0.30  
 Dividends per share  0.075   0.10   0.10    0.10  
                   
 2015                  
 Net sales $537,242  $555,593  $535,184   $471,983  
 Gross profit (1)
  76,408   85,228   68,017    60,647  
 Consolidated net income (7)
  22,340   33,862(5) 18,095(6)  14,110  
 Net income attributable to Mueller Industries, Inc.  21,978   33,651   17,800    14,435  
 Basic earnings per share  0.39   0.60   0.32    0.26  
 Diluted earnings per share  0.39   0.59   0.31    0.25  
 Dividends per share  0.075   0.075   0.075    0.075  
( In thousands, except per share data)
First
Quarter
 
Second
Quarter
 
Third
Quarter
  
Fourth
Quarter
 
          
2017        
Net sales$577,920
 $614,266
 $550,363
  $523,524
 
Gross profit (2)
89,493
 89,955
 79,101
  66,907
 
Consolidated net income (3)
30,455
 27,833
 22,754
  5,969
(4) 
Net income attributable to Mueller Industries, Inc.29,987
 27,633
 22,258
  5,720
 
Basic earnings per share0.53
 0.49
 0.39
  0.10
 
Diluted earnings per share0.52
 0.48
 0.39
  0.10
 
Dividends per share8.10
 0.10
 0.10
  0.10
 
          
2016 
  
  
   
 
Net sales$532,809
 $544,071
 $506,584
  $472,158
 
Gross profit (2)
86,167
 88,011
 81,916
  76,029
 
Consolidated net income (5)
28,665
 28,259
 26,062
(6) 
 16,768
(7) 
Net income attributable to Mueller Industries, Inc.28,630
 27,797
 25,978
  17,322
 
Basic earnings per share0.51
 0.49
 0.46
  0.31
 
Diluted earnings per share0.50
 0.49
 0.45
  0.30
 
Dividends per share0.075
 0.100
 0.100
  0.100
 
(1) Gross profit is net sales less cost of goods sold, which excludes depreciation and amortization.
(2) Includes income earned by Jungwoo-Mueller, acquired during Q2 2016.
(3) Includes $3.0 million of pre-tax charges related to asset impairments.
(4) Includes $3.8 million of pre-tax charges related to asset impairments.
(5) Includes $15.4 million pre-tax gain on sale of assets and $3.4 million of pre-tax charges related to severance.
(6) During Q3 2015, the Company recorded a permanent adjustment to a deferred tax liability of $4.2 million.
        (7) Includes income earned by Turbotec, acquired during Q2 2015, Sherwood, acquired during Q2 2015, and Great Lakes, acquired during Q3
                 2015.(1)
        (8) The sum of quarterly amounts may not equal the annual amounts reported due to rounding. In addition, the earnings per share amounts are
computed independently for each quarter, while the full year is based on the weighted average shares outstanding.
(2)
Gross profit is net sales less cost of goods sold, which excludes depreciation and amortization.
(3)
Includes income earned by Heatlink Group, acquired during Q2 2017.
(4)
Includes $1.1 million of pre-tax charges related to asset impairments, $4.3 million of interest expense on the Company’s Subordinated Debentures, and pre-tax environmental expense for non-operating properties of $6.2 million.
(5)
Includes income earned by Jungwoo-Mueller, acquired during Q2 2016.
(6)
Includes $3.0 million of pre-tax charges related to asset impairments.
(7)
Includes $3.8 million of pre-tax charges related to asset impairments.

Note 19 – Subsequent Event

On January 25, 2017, the Company announced a special dividend on its common stock payable on March 9, 2017 to stockholders of record on February 28, 2017.  The special dividend will consist of $3.00 in cash and $5.00 in principal amount of the Company's 6% Subordinated Debentures due 2027 for each share of common stock (less any applicable withholding tax).

The Debentures will be subordinated to all other funded debt of the Company and will be callable, in whole or in part, at any time at the option of the Company, subject to declining call premiums during the first five years. The Debentures will also grant each holder of the Debentures the right to require the Company to repurchase such holder's Debentures in the event of a change of control, at declining repurchase premiums during the first five years. Interest will be payable semiannually on September 1 and March 1, commencing September 1, 2017.
The effect of the special dividend will be to decrease stockholders' equity by approximately $460.0 million, increase long-term debt by approximately $287.0 million, and decrease cash by approximately $173.0 million.

F-59


Report of Independent Registered Public Accounting Firm

TheTo the Stockholders and the Board of Directors and Stockholders of Mueller Industries, Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of Mueller Industries, Inc. (the Company) as of December 31, 201630, 2017 and December 26, 2015, and31, 2016, the related consolidated statements of income, comprehensive income, changes in equity and cash flows for each of the three years in the period ended December 31, 2016. Our audits also included30, 2017, and the related notes and financial statement schedule listed in the Index at Item 15(a) (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 30, 2017 and December 31, 2016, and the results of its operations and its cash flows for each of the three years in the period ended December 30, 2017, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 30, 2017, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework), and our report dated February 28, 2018 expressed an unqualified opinion thereon.

Basis for Opinion

These financial statements and schedule are the responsibility of the Company's management. Our responsibility is to express an opinion on thesethe Company’s financial statements and schedule based on our audits. We are a public accounting firm registered with the 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 Public Company Accounting Oversight Board (United States).PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includesmisstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the 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 supportingregarding the amounts and disclosures in the financial statements. An auditOur audits also includes assessingincluded evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statement presentation.statements. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in all material respects, the consolidated financial position of Mueller Industries, Inc. at December 31, 2016 and December 26, 2015, and the consolidated results of its operations and its cash flows for each of the three years in the period ended December 31, 2016, in conformity with U.S. generally accepted accounting principles. Also, in our opinion, the related financial statement schedule, when considered in relation to the basic financial statements taken as a whole, presents fairly in all material respects the information set forth therein.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), Mueller Industries, Inc.'s internal control over financial reporting as of December 31, 2016, based on criteria established in Internal Control – Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 Framework) and our report dated March 1, 2017 expressed an unqualified opinion thereon.
                      





We have served as the Company’s auditor since 1991.
Memphis, Tennessee
March 1, 2017February 28, 2018

F-60


MUELLER INDUSTRIES, INC.
SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS
Years Ended December 30, 2017, December 31, 2016, and December 26, 2015 and December 27, 2014
  

    Additions    
(In thousands) Balance at beginning of year Charged to costs and expenses Other additions Deductions 
Balance at end
of year
           
2017          
Allowance for doubtful accounts $637
 $422
 $(61) $18
 $980
           
Environmental reserves $21,864
 $7,491
 $
 $1,351
 $28,004
           
Valuation allowance for deferred tax assets $18,681
 $7
 $11,628
(1) 
$
 $30,316
 
   Additions        
 Balance at Charged to        Balance 
 beginning costs and Other      at end 
(In thousands)of year expenses additions    Deductions of year 
              
2016             
Allowance for doubtful accounts  $623   $160   $2   (1)  $148   $637 
                              
Environmental reserves  $21,667   $894   $       $697   $21,864 
                              
Valuation allowance for deferred tax assets  $17,650   $3   $1,028       $   $18,681 
                              
2016          
Allowance for doubtful accounts $623
 $160
 $2
 $148
 $637
           
Environmental reserves $21,667
 $894
 $
 $697
 $21,864
           
Valuation allowance for deferred tax assets $17,650
 $3
 $1,028
 $
 $18,681
 
2015                        
Allowance for doubtful accounts  $666   $(130)  $201   (1)  $114   $623 
                              
Environmental reserves  $22,661   $76   $       $1,070   $21,667 
                              
Valuation allowance for deferred tax assets  $17,119   $(5)  $536       $   $17,650 
                              
2014                             
Allowance for doubtful accounts  $2,391   $(500)  $18   (1)  $1,243   $666 
                              
Environmental reserves  $23,637   $1,187   $       $2,163   $22,661 
                              
Valuation allowance for deferred tax assets  $22,544   $(5,630)  $2,282       $2,077   $17,119 
                              
(1) Other consists primarily of bad debt recoveries as well as the effect of fluctuating foreign currency exchange rates in all years presented. 
  
  
  
  

2015  
  
  
  
  
Allowance for doubtful accounts $666
 $(130) $201
 $114
 $623
           
Environmental reserves $22,661
 $76
 $
 $1,070
 $21,667
           
Valuation allowance for deferred tax assets $17,119
 $(5) $536
 $
 $17,650










(1) The valuation allowance increased by $11.6 million during 2017 to a balance of $30.3 million as of December 30, 2017.  The change to the valuation allowance in 2017 was attributable to the recording of valuation allowances against tax attributes generated in 2017 primarily resulting from the Act and increased interest expense in state tax jurisdictions where the Company has no tax liability.



F-61

F-59
EXHIBIT INDEX

Exhibits
Description
10.12Summary description of the Registrant's 2017 incentive plan for certain key employees.
 10.25 Change in Control Agreement, effective January 3, 2017 by and between the Registrant and Christopher J. Miritello.
21.0Subsidiaries of the Registrant.
23.0Consent of Independent Registered Public Accounting Firm.
31.1Certification of Chief Executive Officer pursuant to Rule 13a-14(a) and Rule 15d-14(a) of the Securities Exchange Act of 1934, as amended.
31.2Certification of Chief Financial Officer pursuant to Rule 13a-14(a) and Rule 15d-14(a) of the Securities Exchange Act of 1934, as amended.
32.1Certification of Chief Executive Officer pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2Certification of Chief Financial Officer pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.CALXBRL Taxonomy Extension Calculation Linkbase
101.DEFXBRL Taxonomy Extension Definition Linkbase
101.INSXBRL Instance Document
101.LABXBRL Taxonomy Extension Label Linkbase
101.PREXBRL Presentation Linkbase Document
101.SCHXBRL Taxonomy Extension Schema