United States
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
______________________________________ 
FORM 10-Q
 ______________________________________  
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended June 30, 20212022
or
TRANSITION REPORT PURSUANT TO 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from to
Commission File Number: 001-37822
______________________________________  
Advanced Emissions Solutions, Inc.
(Exact name of registrant as specified in its charter)
______________________________________   
Delaware 27-5472457
(State or other jurisdiction of
incorporation or organization)
(I.R.S. Employer
Identification No.)
 8051 E. Maplewood Ave, Suite 210, Greenwood Village, CO80111
(Address of principal executive offices)(Zip Code)

(720) 598-3500
(Registrant’s telephone number, including area code)
Not Applicable
(Former name, former address and former fiscal year, if changed since last report)
______________________________________ 
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes     No  
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes      No  
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company, or an emerging growth company. See the definitions of “large"large accelerated filer,” “accelerated" "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 Exchange Act).
Yes      No  
Securities registered pursuant to Section 12(b) of the Act:
Class Trading SymbolName of each exchange on which registered
Common stock, par value $0.001 per share ADESNASDAQNasdaq Global Market
As of August 4, 2021,10, 2022, there were 18,853,28819,130,644 outstanding shares of Advanced Emissions Solutions, Inc. common stock, par value $0.001 per share.




INDEX
 PAGE




Part I. – FINANCIAL INFORMATION
Item 1. Consolidated Financial Statements
Advanced Emissions Solutions, Inc. and Subsidiaries
Condensed Consolidated Balance Sheets
(Unaudited)
As ofAs of
(in thousands, except share data)(in thousands, except share data)June 30, 2021December 31, 2020(in thousands, except share data)June 30, 2022December 31, 2021
ASSETSASSETSASSETS
Current assets:Current assets:Current assets:
Cash, cash equivalents and restricted cash$47,335 $30,932 
CashCash$80,819 $78,753 
Receivables, netReceivables, net11,560 13,125 Receivables, net12,659 12,622 
Receivables, related partiesReceivables, related parties3,656 3,453 Receivables, related parties— 2,481 
Inventories, netInventories, net8,161 9,882 Inventories, net12,109 7,850 
Prepaid expenses and other assets5,320 4,597 
Prepaid expenses and other current assetsPrepaid expenses and other current assets7,441 6,661 
Total current assetsTotal current assets76,032 61,989 Total current assets113,028 108,367 
Restricted cash, long-termRestricted cash, long-term10,000 5,000 Restricted cash, long-term10,000 10,027 
Property, plant and equipment, net of accumulated depreciation of $5,344 and $3,340, respectively31,204 29,433 
Intangible assets, net1,631 1,964 
Equity method investments3,564 7,692 
Deferred tax assets, net3,787 10,604 
Property, plant and equipment, net of accumulated depreciation of $9,428 and $7,684, respectivelyProperty, plant and equipment, net of accumulated depreciation of $9,428 and $7,684, respectively31,149 30,171 
Other long-term assets, netOther long-term assets, net32,277 29,989 Other long-term assets, net29,575 36,871 
Total AssetsTotal Assets$158,495 $146,671 Total Assets$183,752 $185,436 
LIABILITIES AND STOCKHOLDERS’ EQUITYLIABILITIES AND STOCKHOLDERS’ EQUITYLIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:Current liabilities:Current liabilities:
Accounts payable$8,162 $7,849 
Accrued payroll and related liabilities2,660 3,257 
Current portion of long-term debt4,373 18,441 
Accounts payable and accrued expensesAccounts payable and accrued expenses$14,150 $16,486 
Current portion of finance lease obligationsCurrent portion of finance lease obligations1,235 1,011 
Other current liabilitiesOther current liabilities11,955 12,996 Other current liabilities5,202 5,124 
Total current liabilitiesTotal current liabilities27,150 42,543 Total current liabilities20,587 22,621 
Long-term debt, net of current portion3,670 5,445 
Long-term finance lease obligations, net of current portionLong-term finance lease obligations, net of current portion3,998 3,152 
Other long-term liabilitiesOther long-term liabilities11,392 13,473 Other long-term liabilities14,662 12,362 
Total LiabilitiesTotal Liabilities42,212 61,461 Total Liabilities39,247 38,135 
Commitments and contingencies (Note 11)00
Commitments and contingencies (Note 7)Commitments and contingencies (Note 7)00
Stockholders’ equity:Stockholders’ equity:Stockholders’ equity:
Preferred stock: par value of $.001 per share, 50,000,000 shares authorized, NaN outstanding
Common stock: par value of $.001 per share, 100,000,000 shares authorized, 23,452,485 and 23,141,284 shares issued, and 18,834,339 and 18,523,138 shares outstanding at June 30, 2021 and December 31, 2020, respectively23 23 
Treasury stock, at cost: 4,618,146 and 4,618,146 shares as of June 30, 2021 and December 31, 2020, respectively(47,692)(47,692)
Preferred stock: par value of $.001 per share, 50,000,000 shares authorized, none issuedPreferred stock: par value of $.001 per share, 50,000,000 shares authorized, none issued— — 
Common stock: par value of $.001 per share, 100,000,000 shares authorized, 23,693,208 and 23,460,212 shares issued, and 19,075,062 and 18,842,066 shares outstanding at June 30, 2022 and December 31, 2021, respectivelyCommon stock: par value of $.001 per share, 100,000,000 shares authorized, 23,693,208 and 23,460,212 shares issued, and 19,075,062 and 18,842,066 shares outstanding at June 30, 2022 and December 31, 2021, respectively24 23 
Treasury stock, at cost: 4,618,146 and 4,618,146 shares as of June 30, 2022 and December 31, 2021, respectivelyTreasury stock, at cost: 4,618,146 and 4,618,146 shares as of June 30, 2022 and December 31, 2021, respectively(47,692)(47,692)
Additional paid-in capitalAdditional paid-in capital101,171 100,425 Additional paid-in capital102,668 102,106 
Retained earningsRetained earnings62,781 32,454 Retained earnings89,505 92,864 
Total stockholders’ equity116,283 85,210 
Total Stockholders’ EquityTotal Stockholders’ Equity144,505 147,301 
Total Liabilities and Stockholders’ EquityTotal Liabilities and Stockholders’ Equity$158,495 $146,671 Total Liabilities and Stockholders’ Equity$183,752 $185,436 

See Notes to the Condensed Consolidated Financial Statements.
1

Advanced Emissions Solutions, Inc. and Subsidiaries
Condensed Consolidated Statements of Operations
(Unaudited) 

Three Months Ended June 30,Six Months Ended June 30,Three Months Ended June 30,Six Months Ended June 30,
(in thousands, except per share data)(in thousands, except per share data)2021202020212020(in thousands, except per share data)2022202120222021
Revenues:Revenues:Revenues:
ConsumablesConsumables$15,976 $8,170 $33,007 $17,387 Consumables$24,739 $17,408 $51,141 $35,949 
License royalties, related partyLicense royalties, related party3,657 3,313 7,723 6,359 License royalties, related party— 3,657 — 7,723 
Total revenuesTotal revenues19,633 11,483 40,730 23,746 Total revenues24,739 21,065 51,141 43,672 
Operating expenses:Operating expenses:Operating expenses:
Consumables cost of revenue, exclusive of depreciation and amortizationConsumables cost of revenue, exclusive of depreciation and amortization13,300 7,416 25,774 18,907 Consumables cost of revenue, exclusive of depreciation and amortization19,910 14,732 41,417 28,716 
Payroll and benefitsPayroll and benefits2,908 3,812 5,377 6,554 Payroll and benefits2,519 2,908 5,145 5,377 
Legal and professional feesLegal and professional fees1,431 1,022 3,234 3,065 Legal and professional fees1,555 1,431 3,727 3,234 
General and administrativeGeneral and administrative1,593 2,462 3,508 4,793 General and administrative1,869 1,593 3,795 3,508 
Depreciation, amortization, depletion and accretionDepreciation, amortization, depletion and accretion1,904 1,733 4,010 4,030 Depreciation, amortization, depletion and accretion1,588 1,904 3,094 4,010 
Impairment of long-lived assets26,103 26,103 
Gain on change in estimate, asset retirement obligation(1,942)(1,942)
Loss (gain) on change in estimate, asset retirement obligationLoss (gain) on change in estimate, asset retirement obligation34 (1,942)34 (1,942)
Total operating expensesTotal operating expenses19,194 42,548 39,961 63,452 Total operating expenses27,475 20,626 57,212 42,903 
Operating income (loss)439 (31,065)769 (39,706)
Operating (loss) incomeOperating (loss) income(2,736)439 (6,071)769 
Other income (expense):Other income (expense):Other income (expense):
Earnings from equity method investmentsEarnings from equity method investments21,437 8,168 39,749 16,441 Earnings from equity method investments2,389 21,437 3,222 39,749 
Interest expenseInterest expense(493)(962)(1,330)(2,172)Interest expense(90)(493)(176)(1,330)
OtherOther150 148 571 191 Other111 150 (334)571 
Total other incomeTotal other income21,094 7,354 38,990 14,460 Total other income2,410 21,094 2,712 38,990 
Income (loss) before income tax expense21,533 (23,711)39,759 (25,246)
(Loss) income before income tax expense(Loss) income before income tax expense(326)21,533 (3,359)39,759 
Income tax expenseIncome tax expense4,943 103 9,432 461 Income tax expense— 4,943 — 9,432 
Net income (loss)$16,590 $(23,814)$30,327 $(25,707)
Earnings (loss) per common share (Note 1):
Net (loss) incomeNet (loss) income$(326)$16,590 $(3,359)$30,327 
(Loss) earnings per common share (Note 1):(Loss) earnings per common share (Note 1):
BasicBasic$0.91 $(1.32)$1.66 $(1.43)Basic$(0.02)$0.91 $(0.18)$1.66 
DilutedDiluted$0.90 $(1.32)$1.65 $(1.43)Diluted$(0.02)$0.90 $(0.18)$1.65 
Weighted-average number of common shares outstanding:Weighted-average number of common shares outstanding:Weighted-average number of common shares outstanding:
BasicBasic18,271 18,014 18,219 17,974 Basic18,473 18,271 18,409 18,219 
DilutedDiluted18,398 18,014 18,356 17,974 Diluted18,473 18,398 18,409 18,356 


See Notes to the Condensed Consolidated Financial Statements.


2

Advanced Emissions Solutions, Inc. and Subsidiaries
Condensed Consolidated Statements of Changes in Stockholders' Equity
(Unaudited)

Common StockTreasury StockCommon StockTreasury Stock
(Amounts in thousands, except share data)(Amounts in thousands, except share data)SharesAmountSharesAmountAdditional Paid-in CapitalRetained EarningsTotal Stockholders’
Equity
(Amounts in thousands, except share data)SharesAmountSharesAmountAdditional Paid-in CapitalRetained EarningsTotal Stockholders’
Equity
Balances, January 1, 202123,141,284 $23 (4,618,146)$(47,692)$100,425 $32,454 $85,210 
Balances, January 1, 2022Balances, January 1, 202223,460,212 $23 (4,618,146)$(47,692)$102,106 $92,864 $147,301 
Stock-based compensationStock-based compensation381,339 — — — 421 — 421 Stock-based compensation323,742 — — 463 — 464 
Repurchase of common shares to satisfy minimum tax withholdingsRepurchase of common shares to satisfy minimum tax withholdings(40,975)— — — (216)— (216)Repurchase of common shares to satisfy minimum tax withholdings(59,736)— — — (382)— (382)
Net income— — — — — 13,737 13,737 
Balances, March 31, 202123,481,648 $23 (4,618,146)$(47,692)$100,630 $46,191 $99,152 
Net lossNet loss— — — — — (3,033)(3,033)
Balances, March 31, 2022Balances, March 31, 202223,724,218 24 (4,618,146)(47,692)102,187 89,831 144,350 
Stock-based compensationStock-based compensation(25,330)— — — 566 — 566 Stock-based compensation(30,459)— — — 484 — 484 
Repurchase of common shares to satisfy minimum tax withholdingsRepurchase of common shares to satisfy minimum tax withholdings(3,833)— — — (25)— (25)Repurchase of common shares to satisfy minimum tax withholdings(551)— — — (3)— (3)
Net income— — — — — 16,590 16,590 
Balances, June 30, 202123,452,485 $23 (4,618,146)$(47,692)$101,171 $62,781 $116,283 
Net lossNet loss— — — — — (326)(326)
Balances, June 30, 2022Balances, June 30, 202223,693,208 $24 (4,618,146)$(47,692)$102,668 $89,505 $144,505 

Common StockTreasury Stock
(Amounts in thousands, except share data)SharesAmountSharesAmountAdditional Paid-in CapitalRetained EarningsTotal Stockholders’
Equity
Balances, January 1, 202022,960,157 $23 (4,597,533)$(47,533)$98,466 $57,336 $108,292 
Stock-based compensation218,259 — — — 506 — 506 
Repurchase of common shares to satisfy minimum tax withholdings(64,198)— — — (376)— (376)
Cash dividends declared on common stock— — — — — (4,590)(4,590)
Repurchase of common shares— — (20,613)(159)— — (159)
Net loss— — — — — (1,893)(1,893)
Balances, March 31, 202023,114,218 $23 (4,618,146)$(47,692)$98,596 $50,853 $101,780 
Stock-based compensation(3,549)— — — 1,138 — 1,138 
Repurchase of common shares to satisfy minimum tax withholdings(384)— — — (2)— (2)
Net loss— — — — — (23,814)(23,814)
Balances, June 30, 202023,110,285 $23 (4,618,146)$(47,692)$99,732 $27,039 $79,102 

Common StockTreasury Stock
(Amounts in thousands, except share data)SharesAmountSharesAmountAdditional Paid-in CapitalRetained EarningsTotal Stockholders’
Equity
Balances, January 1, 202123,141,284 $23 (4,618,146)$(47,692)$100,425 $32,454 $85,210 
Stock-based compensation381,339 — — — 421 — 421 
Repurchase of common shares to satisfy minimum tax withholdings(40,975)— — — (216)— (216)
Net income— — — — — 13,737 13,737 
Balances, March 31, 202123,481,648 23 (4,618,146)(47,692)100,630 46,191 99,152 
Stock-based compensation(25,330)— — — 566 — 566 
Repurchase of common shares to satisfy minimum tax withholdings(3,833)— — — (25)— (25)
Net income— — — — — 16,590 16,590 
Balances, June 30, 202123,452,485 $23 (4,618,146)$(47,692)$101,171 $62,781 $116,283 

See Notes to the Condensed Consolidated Financial Statements.

3

Advanced Emissions Solutions, Inc. and Subsidiaries
Condensed Consolidated Statements of Cash Flows
(Unaudited)
Six Months Ended June 30, Six Months Ended June 30,
(in thousands)(in thousands)20212020(in thousands)20222021
Cash flows from operating activitiesCash flows from operating activitiesCash flows from operating activities
Net income (loss)$30,327 $(25,707)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Net (loss) incomeNet (loss) income$(3,359)$30,327 
Adjustments to reconcile net (loss) income to net cash provided by operating activities:Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation, amortization, depletion and accretionDepreciation, amortization, depletion and accretion3,094 4,010 
Earnings from equity method investmentsEarnings from equity method investments(3,222)(39,749)
Operating lease expenseOperating lease expense1,300 912 
Stock-based compensation expenseStock-based compensation expense948 987 
Deferred income tax expenseDeferred income tax expense6,817 11,647 Deferred income tax expense— 6,817 
Depreciation, amortization, depletion and accretion4,010 4,030 
Impairment of long-lived assets26,103 
Operating lease expense912 1,353 
Amortization of debt discount and debt issuance costsAmortization of debt discount and debt issuance costs945 709 Amortization of debt discount and debt issuance costs— 945 
Gain on change in estimate, asset retirement obligation(1,942)
Stock-based compensation expense987 1,644 
Earnings from equity method investments(39,749)(16,441)
Other non-cash items, net(319)31 
Loss (gain) on change in estimate, asset retirement obligationLoss (gain) on change in estimate, asset retirement obligation34 (1,942)
Other non-cash items, netOther non-cash items, net449 (319)
Changes in operating assets and liabilities:Changes in operating assets and liabilities:
Receivables and related party receivablesReceivables and related party receivables2,444 1,362 
Prepaid expenses and other assetsPrepaid expenses and other assets(779)(723)
Inventories, netInventories, net(4,079)1,327 
Changes in operating assets and liabilities:
Receivables and related party receivables1,362 2,854 
Prepaid expenses and other assets(723)(11,129)
Inventories, net1,327 (590)
Other long-term assets, netOther long-term assets, net616 (224)Other long-term assets, net2,942 (2,746)
Accounts payable150 (1,095)
Accrued payroll and related liabilities(597)134 
Accounts payable and accrued expensesAccounts payable and accrued expenses(2,509)(447)
Other current liabilitiesOther current liabilities(1,468)(515)Other current liabilities(450)(1,468)
Operating lease liabilitiesOperating lease liabilities1,999 2,048 
Operating lease liabilities(1,314)(1,213)
Other long-term liabilitiesOther long-term liabilities(2,334)(22)Other long-term liabilities649 (2,334)
Distributions from equity method investees, return on investmentDistributions from equity method investees, return on investment19,144 32,516 Distributions from equity method investees, return on investment2,297 19,144 
Net cash provided by operating activitiesNet cash provided by operating activities18,151 24,085 Net cash provided by operating activities1,758 18,151 
Cash flows from investing activitiesCash flows from investing activitiesCash flows from investing activities
Distributions from equity method investees in excess of cumulative earningsDistributions from equity method investees in excess of cumulative earnings24,732 Distributions from equity method investees in excess of cumulative earnings3,316 24,732 
Acquisition of property, plant, equipment, and intangible assets, netAcquisition of property, plant, equipment, and intangible assets, net(4,573)(4,189)Acquisition of property, plant, equipment, and intangible assets, net(2,889)(4,573)
Mine development costsMine development costs(653)(507)Mine development costs(326)(653)
Proceeds from sale of property and equipmentProceeds from sale of property and equipment895 Proceeds from sale of property and equipment1,204 895 
Net cash provided by (used in) investing activities20,401 (4,696)
Net cash provided by investing activitiesNet cash provided by investing activities1,305 20,401 
Cash flows from financing activitiesCash flows from financing activitiesCash flows from financing activities
Principal payments on finance lease obligationsPrincipal payments on finance lease obligations(594)(818)
Repurchase of common shares to satisfy tax withholdingsRepurchase of common shares to satisfy tax withholdings(385)(241)
Dividends paidDividends paid(45)(90)
Principal payments on term loanPrincipal payments on term loan(16,000)(12,000)Principal payments on term loan— (16,000)
Principal payments on finance lease obligations(818)(676)
Dividends paid(90)(4,828)
Repurchase of common shares(159)
Repurchase of common shares to satisfy tax withholdings(241)(378)
Borrowings from Paycheck Protection Program Loan3,305 
Net cash used in financing activitiesNet cash used in financing activities(17,149)(14,736)Net cash used in financing activities(1,024)(17,149)
Increase in Cash and Cash Equivalents and Restricted Cash21,403 4,653 
Cash and Cash Equivalents and Restricted Cash, beginning of period35,932 17,080 
Cash and Cash Equivalents and Restricted Cash, end of period$57,335 $21,733 
Increase in Cash and Restricted CashIncrease in Cash and Restricted Cash2,039 21,403 
Cash and Restricted Cash, beginning of periodCash and Restricted Cash, beginning of period88,780 35,932 
Cash and Restricted Cash, end of periodCash and Restricted Cash, end of period$90,819 $57,335 
Supplemental disclosure of non-cash investing and financing activities:Supplemental disclosure of non-cash investing and financing activities:Supplemental disclosure of non-cash investing and financing activities:
Acquisition of property and equipment through finance leaseAcquisition of property and equipment through finance lease$1,641 $— 
Acquisition of property and equipment through accounts payableAcquisition of property and equipment through accounts payable$173 $163 
Acquisition of property, plant and equipment through accounts payable$163 $223 
Dividends payable$$77 
See Notes to the Condensed Consolidated Financial Statements.

4

Advanced Emissions Solutions, Inc. and Subsidiaries
Notes to Condensed Consolidated Financial Statements
(Unaudited)


Note 1 - Basis of Presentation
Nature of Operations
Advanced Emissions Solutions, Inc. ("ADES" or the "Company") is a Delaware corporation with its principal office located in Greenwood Village, Colorado and operations located in Louisiana. The Company is principally engaged in the sale of consumable air and water treatment optionssolutions including activated carbon ("AC") and chemical technologies. The Company's proprietary technologies in the advanced purification technologies ("APT") market enable customers to reduce air and water contaminants, including mercury and other pollutants, to maximize utilization levels and to improve operating efficiencies to meet the challenges of existing and pending emission controlair quality and water regulations. Through its wholly-owned subsidiary, ADA Carbon Solutions, LLC ("Carbon Solutions"), theThe Company manufactures and sells AC used to capture and remove contaminants for coal-fired power, plants and industrial and water treatment markets. Carbon SolutionsThe Company also owns an associated lignite mine that("Five Forks Mine") which supplies the primary raw material for manufacturing AC.
Through December 31, 2021, the Company generated substantial earnings from its equity ownership in Tinuum Group, LLC ("Tinuum Group") and Tinuum Services, LLC ("Tinuum Services"), both of which are unconsolidated entities, the Company generates substantial earnings.entities. Both Tinuum Group providesand Tinuum Services ceased material operations effective December 31, 2021 as a result of the expiration of a tax credit program under Internal Revenue Code Section 45 - Production Tax Credit (the "Section 45 Tax Credit Program"). Tinuum Group provided reduction of mercury and nitrogen oxide ("NOx") emissions at select coal-fired power generators through the production and sale of refined coal ("RC") that qualifiesqualified for tax credits under the Internal Revenue Code ("IRC") Section 45 - Production Tax Credit Program ("Section 45 tax credits"). The Company also earnsearned royalties for technologies that arewhich were licensed to Tinuum Group and used at certain RC facilities to enhance combustion and reducedreduce emissions of NOx and mercury from coal burned to generate electrical power. Tinuum Services operatesoperated and maintainsmaintained the RC facilities under operating and maintenance agreements with Tinuum Group and owners or lessees of the RC facilities. BothPresently, both Tinuum Group and Tinuum Services expectcontinue to commence significantly winding downwind-down their operations, starting inand the third quarter of 2021 dueCompany expects to thereceive final cash distributions, which are not expected expiration of the Section 45 tax credit period as of December 31, 2021.
The Company’s sales occur principally in the United States. See Note 17 for additional information regarding the Company's operating segments.to be significant, from these entities during 2022.
Basis of Presentation
The accompanying Condensed Consolidated Financial Statements of ADES are unaudited and have been prepared in conformity with accounting principles generally accepted in the United States ("U.S. GAAP") and with Article 10 of Regulation S-X of the Securities and Exchange Commission. In compliance with those instructions, certain information and footnote disclosures normally included in annual consolidated financial statements prepared in accordance with U.S. GAAP have been condensed or omitted.
The unaudited Condensed Consolidated Financial Statements of ADES in this quarterly report ("Quarterly Report") are presented on a consolidated basis and include ADES and its wholly-owned subsidiaries (collectively, the "Company"). Also included within the unaudited Condensed Consolidated Financial Statements are the Company's unconsolidated equity investments:investments, Tinuum Group and Tinuum Services, and GWN Manager, LLC ("GWN Manager"), which are accounted for under the equity method of accounting, and Highview Enterprises Limited (the "Highview Investment"), which is accounted for in accordance with U.S. GAAP applicable to equity investments that do not qualify for the equity method of accounting.
Results of operations and cash flows for the interim periods are not necessarily indicative of the results that may be expected for the entire year. All significant intercompany transactions and accounts were eliminated in consolidation for all periods presented in this Quarterly Report.
In the opinion of management, these Condensed Consolidated Financial Statements include all normal and recurring adjustments considered necessary for a fair presentation of the results of operations, financial position, stockholders' equity and cash flows for the interim periods presented. These Condensed Consolidated Financial Statements of ADES should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 20202021 (the "2020"2021 Form 10-K"). Significant accounting policies disclosed therein have not changed.
Earnings (Loss) Per Share
Basic earnings (loss) per share is computed using the two-class method, which is an earnings allocation formula that determines earnings (loss) per share forweighted-average number of shares of common stock and any participating securities according to dividend and participating rights in undistributed earnings (losses). Pursuant to U.S. GAAP, outstanding during
the Company has elected not to separately present basic or diluted earnings per share attributable to participating securities in the Condensed Consolidated Statements of Operations.
5

Advanced Emissions Solutions, Inc. and Subsidiaries
Notes to Condensed Consolidated Financial Statements
(Unaudited)
reporting period. Diluted earnings (loss) per share is computed in a manner consistent with that of basic earnings per share, while considering other potentially dilutive securities. For the three and six months ended June 30, 2022 and June 30, 2021, potentially dilutive securities consist of unvested non-participating restricted stock awards ("RSA's"), as well as and contingent performance stock units ("PSU's"). For the three
5

Advanced Emissions Solutions, Inc. and six months ended June 30, 2020, potentially dilutive securities consist of both unvested, participating and non-participating RSA's, as well as outstanding optionsSubsidiaries
Notes to purchase common stock ("Stock Options") and PSU's.Condensed Consolidated Financial Statements
The dilutive effect, if any, for non-participating RSA's, Stock Options and PSU's is determined using the greater of dilution as calculated under the treasury stock method or the two-class method. Potentially dilutive securities are excluded from diluted earnings per share when their effect is anti-dilutive. When there is a net loss for a period, all potentially dilutive securities are anti-dilutive and are excluded from the calculation of diluted loss per share for that period.(Unaudited)
The following table sets forth the calculations of basic and diluted (loss) earnings (loss) per share:
 Three Months Ended June 30,Six Months Ended June 30,
(in thousands, except per share amounts)2021202020212020
Net income (loss)$16,590 $(23,814)$30,327 $(25,707)
Less: Dividends and undistributed income (loss) allocated to participating securities(17)(19)
Income (loss) attributable to common stockholders$16,590 $(23,797)$30,327 $(25,688)
Basic weighted-average common shares outstanding18,271 18,014 18,219 17,974 
Add: dilutive effect of equity instruments127 137 
Diluted weighted-average shares outstanding18,398 18,014 18,356 17,974 
Earnings (loss) per share - basic$0.91 $(1.32)$1.66 $(1.43)
Earnings (loss) per share - diluted$0.90 $(1.32)$1.65 $(1.43)
 Three Months Ended June 30,Six Months Ended June 30,
(in thousands, except per share amounts)2022202120222021
Net (loss) income$(326)$16,590 $(3,359)$30,327 
Basic weighted-average common shares outstanding18,473 18,271 18,409 18,219 
Add: dilutive effect of equity instruments— 127 — 137 
Diluted weighted-average shares outstanding18,473 18,398 18,409 18,356 
(Loss) earnings per share - basic$(0.02)$0.91 $(0.18)$1.66 
(Loss) earnings per share - diluted$(0.02)$0.90 $(0.18)$1.65 
For the three and six months ended June 30, 20212022 and 2020,2021, potentially dilutive securities convertible toof 0.8 million and 0.1 million shares, and 0.7 million and 0 and 0.3 million shares of common stock, respectively, were outstanding but were not included in the computationcalculation of diluted net (loss) income (loss) per share because the effect would have been anti-dilutive.
Use of Estimates
The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. There have been no changes in the Company’s critical accounting estimates from those that were disclosed in the 20202021 Form 10-K. Actual results could differ from these estimates.
Due to the coronavirus ("COVID-19") pandemic, there has been uncertainty and disruption in the global economy and financial markets. Additionally, due to COVID-19, overall power generation and coal-fired power demand may decline, which could have a material adverse effect on the Company. The Company is not aware of any specific event or circumstance due to COVID-19 that would require an update to its estimates or judgments or a revision of the carrying values of its assets or liabilities through the date of this Quarterly Report. These estimates may change as new events occur and additional information is obtained. Actual results could differ materially from these estimates under different assumptions or conditions.
Risks and Uncertainties
The Company’sloss of earnings are significantly affected by equity earningsand cash distributions from Tinuum Group. As of June 30, 2021, Tinuum Group has 22 invested RC facilities, of which 8 are leased to a single customer. Bothboth Tinuum Group and Tinuum Services expectwill continue to commence significantly winding down their operations starting in the third quarter of 2021 due to the expected expiration of the Section 45 tax credit period as of December 31, 2021. During the second quarter of 2021, Tinuum Group ceased operating 1 RC facility, with the remaining RC facilities expected to cease operations during the second half of 2021. The loss of Tinuum Group's customers, reduction in revenue streams as a result of lease renewals and the expiration of Section 45 tax credits will have a significant adverse impact on Tinuum Group's financial position, results of operations and cash flows, which in turn will have a material adverse impact on the Company’s financial position, results of operations and cash flows.
6

Advanced Emissions Solutions, Inc. For 2022, the Company is principally dependent on operations of its APT business and Subsidiaries
Notesits cash on hand to Condensed Consolidated Financial Statements
(Unaudited)
provide liquidity over the near and long term. The Company's revenues, sales volumes, earnings and cash flows are significantly affected by prices of competing power generation sources such as natural gas and renewable energy. During periods of low natural gas prices, natural gas provides a competitive alternative to coal-fired power generation and therefore, coal consumption may be reduced, which in turn reduces the demand for the Company's products. However, during periods of higher prices for competing power generation sources, thethere is an increase in coal consumption and thus demand for the Company's products increases due to the increase in coal consumption. also increases.
In addition, coal consumption and demand for the Company's products are also affected by the demand for electricity, which is higher in the warmer and colder months of the year. As a result, the Company's interim period results are subject to seasonal variations whereby its revenues and cost of revenues tend to be higher in its first and third fiscal quarters compared to its second and fourth fiscal quarters. Abnormal temperatures during the summer and winter months may significantly affect coal consumption and impurities within various municipalities' water sources, and thus impact the demand for the Company's products.
Concentration of credit risk
The Company is exposed to concentrations of credit risk primarily related to cash held at financial institutions and accounts receivable. The Company regularly monitors its credit risk to mitigate the possibility of current and future exposures resulting in a loss. Historically, the losses related to credit risk have been immaterial.
The Company holds cash at 2 financial institutions as of June 30, 2022. If a financial institution was unable to perform its obligations, the Company would be at risk regarding the amount of cash and investments in excess of the Federal Deposit Insurance Corporation limits (currently $250 thousand) that would be returned to the Company.
The Company evaluates the creditworthiness of its customers prior to entering into an agreement to sell its products and, as necessary, through the life of the customer relationship.
Reclassifications
Certain balances have been reclassified from the prior year to conform to the current year presentation. Such reclassifications had no effect on the Company’s results of operations or financial position in any of the periods presented.
New Accounting Standards
6

Advanced Emissions Solutions, Inc. and Subsidiaries
AdoptedNotes to Condensed Consolidated Financial Statements
In December 2019,(Unaudited)
Segments
Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by a company's chief operating decision maker ("CODM"), or a decision-making group, in deciding how to allocate resources and in assessing financial performance. As of June 30, 2022, the FASB issued ASU 2019-12, Income Taxes (Topic 740) SimplifyingCompany's CODM was the Accounting for Income Taxes ("ASU 2019-12"). The amendments in ASU 2019-12 simplify various aspects related to accounting for income taxes by removing certain exceptions contained in Topic 740Company's Chief Executive Officer, and also clarifythe Company concluded that APT was its 1 reportable segment.
Given the wind-down of Tinuum Group and amends existing guidance in Topic 740 to improve consistent application. ASU 2019-12 is effective for public business entities beginning after December 15, 2020, including interim periods within those years,Tinuum Services and early adoption is permitted. The Company adopted ASU 2019-12 effective January 1, 2021 and it did not have a materialthe impact on the Company's financial statements, the Company determined the historical RC segment no longer met the qualitative or quantitative criteria to be considered a reporting segment under U.S. GAAP. As a result, including the method in which the CODM allocates resources, beginning January 1, 2022, the Company determined that it had 1 reportable segment and disclosures.therefore has removed its segment disclosures for this Quarterly Report.
Not Yet AdoptedNew Accounting Standards
In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses (Topic 326) Measurement of Credit Losses on Financial Instruments ("ASU 2016-13"). The main objective of ASU 2016-13 is to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date. To achieve this objective, the amendments in ASU 2016-13 replace the incurred loss impairment methodology in current U.S. GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to form credit loss estimates. ASU 2016-13 is effective for "smaller reporting companies" (as defined by the Securities and Exchange Commission) for fiscal years beginning after December 15, 2022, including interim periods within those years, and must be adopted under a modified retrospective method approach. The Company intends to adopt ASU 2016-13 effective January 1, 2023 and is currently evaluating the provisions of this guidance and assessing the impact on its financial statements and disclosures anddisclosures. The Company does not believe this standard will have a material impact on its financial statements and disclosures.
Note 2 - Customer Supply Agreement
On September 30, 2020, the Company and Norit Activated Carbon - Americas (f/k/a Cabot Norit Americas, Inc.) ("Norit"), ("Cabot") entered into a supply agreement (the "Supply Agreement") pursuant to which the Company agreed to sell and deliver to Cabot,Norit, and CabotNorit agreed to purchase and accept from the Company certain lignite-based AC products ("Furnace Products").
As part The term of the Supply Agreement is for 15 years with 10-year renewal terms that are automatic unless either party provides three years prior notice of intention not to renew before the Company and Cabot agreed to additional terms whereby Cabotend of any term.
Under the Supply Agreement, Norit also reimburses the Company for certain capital expenditures incurred by the Company that are necessary to manufacture the Furnace Products, and both the Company and Cabot must mutually agree on theseProducts. Reimbursements are comprised ofrevenues earned from capital expenditures in advance of procurement and commissioning. Capital expenditures incurred that will benefit both the Company and Cabot ("SharedNorit (referred to as "Shared Capital") are partially reimbursable by Cabot and recognized as revenues based on a formula contained in the Supply Agreement. Revenuesearned from and reimbursements of Shared Capital are recognized and billable, respectively, beginning on the first day of a half year (January 1 and July 1 of a calendar year) following the placed in service date of a Shared Capital asset(s).
Capitalcapital expenditures incurred that will benefit CabotNorit exclusively ("Specific(referred to as "Specific Capital") are fully reimbursable by Cabot and recognized as revenues based on a formula contained in the Supply Agreement. Revenues earned from Specific Capital are recognized beginning on the first day of a half year following the placed in service date of a Specific Capital asset(s). Reimbursements of Specific Capital are billable in quarterly installments beginning on the first day of a half year following the placed in service date of a Specific Capital asset(s). In the event that CabotNorit ceases to make purchases under the Supply Agreement, CabotNorit is obligated to pay the balance of any outstanding amountspayments for Specific Capital.
Revenues earnedFurther, under the terms of the Supply Agreement, Norit was obligated to pay the Reclamation Reimbursement (defined in Note 3 below) to the Company for $10.2 million of the Reclamation Costs (defined in Note 3 below) , inclusive of interest. The Company recorded the Norit Receivable for the Reclamation Reimbursement at its estimated fair value, which was measured using a discounted cash flows valuation model that considered the estimated credit risk associated with the obligor's (Norit's) future performance, which the Company estimated was approximately 1.5%.
On February 25, 2022, the Company received $10.6 million in cash from both Shared Capital andNorit (the "Norit Payment") as a result of a change in control provision in the Supply Agreement (the "Change in Control"), which occurred as a result of the sale of Norit by its parent, Cabot Corporation. Under the Change in Control, the Company received from Norit full payment of all amounts outstanding under the Reclamation Reimbursement, payment of all unbilled amounts related to Specific Capital are reportedfor expenditures incurred through February 28, 2022 and payment of $0.8 million related to additional costs due to the third-party operator of Marshall Mine (the "Norit Reclamation Costs"). Under the Reclamation Contract (defined in Note 3 below), the Consumables revenue line itemCompany was obligated to remit payment for the Norit Reclamation Costs to the third-party operator of Marshall Mine, and such payment was remitted in March 2022. The Change in Control did not impact any other provisions of the StatementsSupply Agreement.
As of Operations.February 25, 2022, the carrying value of the Reclamation Reimbursement was $9.0 million, which included the principal balance, adjusted for accretion of interest and payments made to date. Under the Change in Control, the Company received $8.5 million in cash for full payment of the outstanding Reclamation Reimbursement. The Company concluded that the cash
7

Advanced Emissions Solutions, Inc. and Subsidiaries
Notes to Condensed Consolidated Financial Statements
(Unaudited)
proceeds received represented an early payment of a receivable based on a change in contractual terms and accounted for the difference between the cash proceeds received and the carrying amount of the Reclamation Reimbursement of $0.5 million as a loss for the three months ended March 31, 2022, which is included in the "Other Income (Expense)" line item in the Condensed Consolidated Statement of Operations for the six months ended June 30, 2022.
Also, under the Change in Control, the Company received $1.3 million in advance of revenue to be recognized in future periods related to Specific Capital and recorded this amount as deferred revenue, which is recognized ratably over the remaining contractual term as stipulated in the Supply Agreement.
Note 3 - Acquisition of Marshall Mine
Concurrently with the execution of the Supply Agreement, on September 30, 2020, the Company entered into an agreement to purchase from CabotNorit 100% of the membership interests in Marshall Mine, LLC (the "Marshall Mine Purchase Agreement"Acquisition") for a nominal cash purchase price. Marshall Mine, LLC owns a lignite mine located outside of Marshall, Texas (the "Marshall Mine"). The Company concluded that the Marshall Mine did not have any remaining economic reserves and independently determined to immediately commence activities to shutter it. OnAccordingly, on September 30, 2020, the Company and a third party entered into a reclamation contract (the "Reclamation Contract") with a third party that provided a capped cost agreement, subject to certain contingencies, infor full reclamation of the amount of approximately $19.7 million plus an obligation to pay certain direct costs estimatedMarshall Mine, which is expected to be $3.6 million (collectively, the "Reclamation Costs") over the estimated reclamation period of 10 years (the "Reclamation Period").completed by 2030. Under the terms of the Supply Agreement, Cabot isNorit was obligated to reimburse the Company for $10.2 million of Reclamation Costs (the "Reclamation Reimbursements"Reimbursement") for a portion of the total costs incurred under the Reclamation Contract (the "Reclamation Costs"), which arewas payable semi-annually over 13 years and inclusive of interest. In the event that Cabot has a changeAs discussed in controlNote 2, on February 25, 2022 as described in the Supply Agreement, all outstanding balancespart of the Reclamation Reimbursements shall be due and payableChange in full. See further discussion ofControl, Norit fully paid the outstanding amount owed under the Reclamation CostsReimbursement and Reclamation Reimbursements in Note 4.has no further liability related to the Marshall Mine.
The Company accounted for the Marshall Mine Purchase AgreementAcquisition as an asset acquisition, and it included the acquisition of certain assets that will be consumed and the assumption of certain liabilities that are to be paid in reclamation of the Marshall Mine in addition toas well as the incurrence of an obligation for the Reclamation Costs. The Company accounted forCosts (the "Marshall Mine ARO"). As of June 30, 2022 and December 31, 2021, the carrying value of the Marshall Mine Purchase Agreement as an asset acquisition.ARO was $4.8 million and $6.3 million, respectively.
As the Marshall Mine Purchase Agreement representsAcquisition represented a transaction with a customer of net assets acquired and liabilities assumed from Cabot,Norit, the Company accounted for the excess of the fair value of liabilities assumed over assets acquired as upfront consideration transferred to a customer, CabotNorit (the "Upfront Customer Consideration"). The amount of the Upfront Customer Consideration was also recognized net of an additional asset recognized in the Marshall Mine Acquisition, which was comprised of a receivable from Cabot (the "Cabot Receivable") for the Reclamation Reimbursements. The Cabot Receivable is further discussed in Note 4.
Reimbursement. The total Upfront Customer Consideration is being amortized as a reduction to revenues on a straight-line basis over the expected 15-year contractual period of the Supply Agreement.
As part Amortization of the Marshall Mine Purchase Agreement, the Company assumed liabilities, whose fair value exceeded the fair value of assets acquired. A summary of the net assets acquired and liabilities assumed and the additional assets recorded in the Marshall Mine Purchase Agreement as of September 30, 2020 are shown in the table below. The Company completed additional analysis of the assets acquired and liabilities assumed and recorded adjustments as of December 31, 2020 as shown in the table below.
(in thousands)As Originally ReportedAdjustmentsAs Adjusted
Assets acquired:
Receivables$$513 $513 
Property, plant and equipment3,863 3,863 
Spare parts100 100 
Liabilities assumed:
Accounts payable and accrued expenses(673)160 (513)
Asset retirement obligation(21,328)(21,328)
Net assets acquired and liabilities assumed from Marshall Mine acquisition(18,038)673 (17,365)
Cabot Receivable9,749 9,749 
Upfront Customer Consideration$8,289 $(673)$7,616 
Upfront Customer Consideration is approximately $0.5 million per year.
The Company also evaluated the Marshall Mine, entityLLC as a potential variable interest entity ("VIE"), and determined that Marshall Mine, LLCit was a VIE and the Company was its primary beneficiary. Therefore, the Company consolidates Marshall Mine, LLC's assets and liabilities in theits consolidated financial statements.

8

Advanced Emissions Solutions, Inc. and Subsidiaries
Notes to Condensed Consolidated Financial Statements
(Unaudited)
The following tables summarize the assets and liabilities of Marshall Mine, LLC and their classification in the Company's Condensed Consolidated Balance Sheets:

As of
(in thousands)June 30, 2022December 31, 2021Balance sheet component
Cash$1,501 $914 Current assets
Norit receivable, short-term— 2,056 Current assets
Prepaid expenses and other current assets249 — Current assets
Restricted cash10,000 10,027 Non-current assets
Property and equipment, net1,968 Non-current assets
Norit receivable, long-term— 6,846 Non-current assets
$11,753 $21,811 
Accounts payable and accrued liabilities$447 $1,065 Current liabilities
Asset retirement obligation, short-term291 1,775 Current liabilities
Asset retirement obligation, long-term4,474 4,546 Non-current liabilities
$5,212 $7,386 
Note 4 - Marshall Mine Asset Retirement ObligationLeases
The Company's operating and Cabot Receivable
Asset Retirement Obligation
As of September 30, 2020, the Company recorded an asset retirement obligation (the "Marshall Mine ARO"finance lease right-of-use ("ROU") for the total Reclamation Costs of $21.3 millionassets and liabilities as measured at the expected future cash flows of $23.7 million, inclusive of contingency costs, discounted to their present value using a discount rate based on a credit-adjusted, risk-free rate of 7.0%. As of June 30, 20212022 and December 31, 2020, the carrying value2021 consisted of the Marshall Mine ARO was $11.7following items (in thousands):
As of
LeasesJune 30, 2022December 31, 2021
Operating Leases
Operating lease right-of-use assets, net of accumulated amortization (1)
$8,118 $6,000 
Operating lease obligations, current$2,742 $2,157 
Long-term operating lease obligations5,592 4,178 
Total operating lease obligation$8,334 $6,335 
Finance Leases
Finance lease right-of-use assets, net of accumulated amortization (2)
$3,013 $1,743 
Finance lease obligations, current$1,235 $1,011 
Long-term finance lease obligations3,998 3,152 
Total finance lease obligations$5,233 $4,163 
(1) Operating lease ROU assets are reported net of accumulated amortization of $2.9 million and $18.1 million, respectively.
As of June 30, 2021, the Company revised its estimate of future obligations owed for the reclamation of Marshall Mine primarily based on scope reductions related to future reclamation requirements. As a result, the Company reduced the Marshall Mine ARO by $1.9 million as of June 30, 2022 and December 31, 2021, respectively.
(2) Finance lease ROU assets are reported net of accumulated amortization of $1.5 million and recorded a corresponding gain on change in estimate for the three and six months ended June 30, 2021. This is included as "Gain on change in estimate, asset retirement obligation" in the Condensed Consolidated Statements of Operations for the three and six months ended June 30, 2021.
Cabot Receivable
As of September 30, 2020, the Company recorded the Cabot Receivable at its estimated fair value of $9.7$1.1 million reflecting a discount rate of approximately 1.5% or $0.5 million. There were no significant related fees or costs associated with the Cabot Receivable. The Company did not elect the fair value option in its initial or subsequent accounting for the Cabot Receivable.
The Cabot Receivable requires Cabot to pay the Reclamation Reimbursements to the Company in the amount of $10.2 million inclusive of interest based on a mutually agreed-upon payment schedule through 2033. Interest is accreted on the Cabot Receivable and recognized as interest income. An allowance for the Cabot Receivable asset is assessed periodically, and 0 allowance was deemed necessary as of June 30, 20212022 and December 31, 2020.2021, respectively.
Surety BondOperating leases
As the owner of the Marshall Mine, the Company is required to post a surety bond to ensure performance of its reclamation activities. On September 30, 2020, the CompanyROU assets under operating leases and a third party entered into a surety bond indemnification agreement (the "Surety Agreement") pursuant to which the Company secured and posted a $30.0 million surety bond (the "Bond") with the local regulatory agency. On June 7, 2021, the third party agreed to reduce the Surety Bond amount to $16.6 million. The Bond will remain in place until the Marshall Mine is fully reclaimed, and may be further reduced in amount from time to time as the Company progresses with its reclamation activities. As of June 30, 2021, the Company was required to post collateral of $10.0 million for the obligations due under the Reclamation Contract, which is recorded as long-term restricted cash on the Condensed Consolidated Balance Sheet.
Note 5 - COVID-19
In March 2020, the federal government passed the Coronavirus Aid, Relief, and Security Act (the "CARES Act"), which provided among other things the creation of the Paycheck Protection Plan ("PPP"), which is sponsored and administered by the U.S. Small Business Administration ("SBA"). On April 20, 2020, the Company executed a loan agreement (the "PPP Loan") under the PPP, evidenced by a promissory note, with BOK, NA dba Bank of Oklahoma ("BOK"), providing for $3.3 million in proceeds, which was funded to the Company on April 21, 2020. In June 2020, the Paycheck Protection Program Flexibility Act of 2020 (the "PPPFA") was signed into law and established the payment datesoperating lease liabilities are included in the event that amounts borrowed under the PPP are not forgiven. The PPP Loan matures April 21, 2022, but may be forgiven subject to the terms of the PPP"Other long-term assets" and approval by the SBA. The Company recorded the PPP Loan as a debt obligation"Other current liabilities" and accrues interest over the term of the PPP Loan.
The interest rate on the PPP Loan is 1.00%. The PPP Loan is unsecured and contains customary events of default relating to, among other things, payment defaults, making materially false and misleading representations to the SBA or BOK, or breaching the terms of the PPP Loan. The occurrence of an event of default may result in the repayment of all amounts outstanding, collection of all amounts owing from the Company, or filing suit and obtaining judgment against the Company.
Under the PPPFA, monthly payments of principal and interest commence on the later of 10 months following the "covered period" (as defined in the PPPFA) or the date that BOK notifies the Company that the SBA has notified BOK that all or a portion of the PPP Loan has not been forgiven. In January 2021, the Company submitted its application to the SBA for forgiveness of the PPP Loan. As of June 30, 2021, the PPP Loan principal and accrued interest are classified as current"Other long-term liabilities" line items, respectively, in the Condensed Consolidated Balance Sheets.
On July 27, 2021, the Company received formal notification in the formSheets as of a letter dated July 19, 2021 from BOK that the SBA approved the Company’s PPP Loan forgiveness application for the Company’s Loan in the amount of $3.3 million (including accrued interest). The Company will account for the debt forgiveness during its fiscal third quarter of 2021June 30, 2022 and will recognize a gain on extinguishment of debt in the amount of $3.3 million in the Consolidated Statements of Operations.December 31, 2021.
9

Advanced Emissions Solutions, Inc. and Subsidiaries
Notes to Condensed Consolidated Financial Statements
(Unaudited)
The CARES Act also providedLease expense for the deferral of payroll tax paymentsoperating leases for all payroll taxes incurred through December 31, 2020. The Company elected to defer payments of payroll taxes for the periods allowed under the CARES Act and will repay 50% by December 31, 2021 and 50% by December 31, 2022. As of June 30, 2021, the Company has deferred $0.4 million of payroll tax payments under the CARES Act.
Note 6 - Equity Method Investments
Tinuum Group, LLC
As of June 30, 2021 and December 31, 2020, the Company's ownership interest in Tinuum Group was 42.5%. Tinuum Group supplies technology equipment and technical services at select coal-fired generators, but its primary purpose is to put into operation facilities that produce and sell RC that lower emissions and also qualify for Section 45 tax credits. The Company concluded that Tinuum Group was a VIE, but the Company does not have the power to direct the activities that most significantly impact Tinuum Group's economic performance, as the voting partners of Tinuum Group have identical voting rights, equity control interests and board control interests, and therefore power is shared. Accordingly, the Company has accounted for its investment in Tinuum Group under the equity method of accounting since inception.
The following table summarizes the results of operations of Tinuum Group:
Three Months Ended June 30,Six Months Ended June 30,
(in thousands)2021202020212020
Gross profit$8,820 $6,868 $11,495 $11,878 
Operating, selling, general and administrative expenses12,429 11,919 26,231 24,695 
Loss from operations(3,609)(5,051)(14,736)(12,817)
Other income (expenses), net3,150 2,144 4,003 5,787 
Loss attributable to noncontrolling interest29,038 18,823 64,616 38,094 
Net income available to members$28,579 $15,916 $53,883 $31,064 
ADES equity earnings from Tinuum Group$19,125 $6,764 $35,487 $13,202 
For the three and six months ended June 30, 2021,2022 was $1.0 million and $2.0 million, respectively, of which $0.9 million and $1.8 million, respectively, is included in the Company recognized earnings from Tinuum Group's net income available to members that were different from its pro-rata share"Consumables - cost of Tinuum Group's net income available to members, as cash distributionsrevenue, exclusive of depreciation and amortization" line item and $0.1 million and $0.2 million, respectively, is included in the "General and administrative" line item in the Condensed Consolidated Statements of Operations for those periods. Lease expense for operating leases for the three and six months ended June 30, 2021 exceeded the carrying valuewas $0.9 million and $1.9 million, respectively of the Tinuum Group equity investment. For 2021, the Company expects to recognize such excess contributions as equity method earningswhich $0.8 million and $1.7 million, respectively, is included in the period"Consumables - cost of revenue, exclusive of depreciation and amortization" line item and $0.1 million and $0.2 million, respectively, is included in "General and administrative" line item in the distributions occur, limitedCondensed Consolidated Statements of Operations for those periods.
Finance leases
ROU assets under finance leases are included in the "Property, plant and equipment" line item in the Condensed Consolidated Balance Sheets as of June 30, 2022 and December 31, 2021. Interest expense related to finance lease obligations and amortization of ROU assets under finance leases are included in the carrying value"Interest expense" and "Depreciation, amortization, depletion and accretion" line items, respectively, in the Condensed Consolidated Statements of the Tinuum Group equity investment. ForOperations for the three and six months ended June 30, 2020, the Company recognized its pro-rata share2022 and 2021.
Lease financial information as of Tinuum Group's net income available to its membersand for the respective period.three and six months ended June 30, 2022 and 2021 is provided in the following table:
Three Months Ended June 30,Six Months Ended June 30,
(in thousands)2022202120222021
Finance lease cost:
Amortization of right-of-use assets$230 $174 $371 $348 
Interest on lease liabilities86 70 164 149 
Operating lease cost778 626 1,584 1,085 
Short-term lease cost216 233 459 800 
Variable lease cost (1)12 21 
Total lease cost$1,313 $1,115 $2,585 $2,403 
Other Information:
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for finance leases$164 $149 
Operating cash flows for operating leases$1,419 $1,314 
Financing cash flows for finance leases$594 $818 
Right-of-use assets obtained in exchange for new finance lease liabilities$1,641 $— 
Right-of-use assets obtained in exchange for new operating lease liabilities$3,418 $3,362 
Weighted-average remaining lease term - finance leases3.2 years3.3 years
Weighted-average remaining lease term - operating leases4.3 years2.9 years
Weighted-average discount rate - finance leases5.9 %6.4 %
Weighted-average discount rate - operating leases5.9 %7.8 %
(1) Primarily includes common area maintenance, property taxes and insurance payable to lessors.
10

Advanced Emissions Solutions, Inc. and Subsidiaries
Notes to Condensed Consolidated Financial Statements
(Unaudited)
Note 5 - Revenues
Trade receivables represent an unconditional right to consideration in exchange for goods or services transferred to a customer. The Company invoices its customers in accordance with the terms of the contract. Credit terms are generally net 30 from the date of invoice. The timing between the satisfaction of performance obligations and when payment is due from the customer is generally not significant.
Contract liabilities are comprised of deferred revenue, which represents an obligation to transfer goods or services to a customer for which the Company has received consideration from the customer and, if deliverable within one year or less, is included in "Other current liabilities" in the Consolidated Balance Sheets and, if deliverable outside of one year, is included in "Other long-term liabilities" in the Consolidated Balance Sheets.
The following tables presenttable shows the components of the Company's investment balance, equity earningsReceivables, net:
As of
(in thousands)June 30, 2022December 31, 2021
Trade receivables, net$12,589 $10,476 
Other receivables70 — 
Norit Receivable - current— 2,146 
Receivables, net$12,659 $12,622 
For the three and cash distributionssix months ended June 30, 2022 and 2021, all material performance obligations related to revenues recognized were satisfied at a point in excesstime. For the three and six months ended June 30, 2022, approximately 8% and 9%, respectively, of Consumables revenues were generated in Canada, and all other revenues were generated in the investment balance, if any, forU.S. For the three and six months ended June 30, 2021, approximately 10% and 2020 (15%, respectively, of Consumables revenues were generated in thousands):
DescriptionDate(s)Investment balanceADES equity earningsCash distributionsMemorandum Account: Cash distributions and equity earnings in (excess) of investment balance
Beginning balance12/31/2020$3,387 $$$
ADES proportionate share of income from Tinuum GroupFirst Quarter10,755 10,755 0 
Cash distributions from Tinuum GroupFirst Quarter(19,749)19,749 
Adjustment for current year cash distributions in excess of investment balanceFirst Quarter5,607 5,607 (5,607)
Total investment balance, equity earnings and cash distributions3/31/2021$16,362 $19,749 (5,607)
ADES proportionate share of income from Tinuum GroupSecond Quarter12,146 $12,146 $
Recovery of prior cash distributions in excess of investment balance (prior to cash distributions)Second Quarter(5,607)(5,607)5,607 
Cash distributions from Tinuum GroupSecond Quarter(19,125)19,125 
Adjustment for current year cash distributions in excess of investment balanceSecond Quarter12,586 12,586 (12,586)
Total investment balance, equity earnings and cash distributions6/30/2021$$19,125 $19,125 $(12,586)
DescriptionDate(s)Investment balanceADES equity earningsCash distributions
Beginning balance12/31/2019$32,280 $$
ADES proportionate share of income from Tinuum GroupFirst Quarter6,438 6,438 
Cash distributions from Tinuum GroupFirst Quarter(13,764)13,764 
Total investment balance, equity earnings and cash distributions3/31/202024,954 $6,438 $13,764 
ADES proportionate share of income from Tinuum GroupSecond Quarter6,764 $6,764 $
Cash distributions from Tinuum GroupSecond Quarter(13,600)13,600 
Total investment balance, equity earnings and cash distributions6/30/2020$18,118 $6,764 $13,600 
Canada, and all other revenues were generated in the U.S.
Tinuum Services, LLC
The Company has a 50% voting and economic interest in Tinuum Services as of June 30, 2021 and December 31, 2020. The Company determined that Tinuum Services was not a VIE and further evaluated it for consolidation under the voting interest model. Because the Company does not own greater than 50% of the outstanding voting shares, either directly or indirectly, it has accounted for its investment in Tinuum Services under the equity method of accounting since inception. As of June 30, 2021 and December 31, 2020, the Company’s investment in Tinuum Services was $3.5 million and $4.2 million, respectively.
11

Advanced Emissions Solutions, Inc. and Subsidiaries
Notes to Condensed Consolidated Financial Statements
(Unaudited)
Note 6 - Inventories, net
The following table summarizes the resultsCompany's inventories recorded at the lower of operationsaverage cost or net realizable value as of Tinuum Services:
 Three Months Ended June 30,Six Months Ended June 30,
(in thousands)2021202020212020
Gross loss$(22,641)$(20,418)$(41,163)$(42,677)
Operating, selling, general and administrative expenses47,355 43,515 101,722 89,268 
Loss from operations(69,996)(63,933)(142,885)(131,945)
Other income (expenses), net32 (330)(394)(615)
Loss attributable to noncontrolling interest74,587 67,071 151,802 139,043 
Net income$4,623 $2,808 $8,523 $6,483 
ADES equity earnings from Tinuum Services$2,312 $1,404 $4,262 $3,242 
Included in the Consolidated Statements of Operations of Tinuum Services for the three and six months ended June 30, 20212022 and 2020 were losses attributable to noncontrolling interests of Tinuum Services' VIE entities, which were eliminated in the calculations of Tinuum Services' net income attributable to the Company's interest.December 31, 2021:
The following table details the carrying value of the Company's respective equity method investments included in the Equity method investments line item on the Condensed Consolidated Balance Sheets and indicates the Company's maximum exposure to loss:
As of
(in thousands)June 30, 2022December 31, 2021
Product inventory, net$6,072 $4,901 
Raw material inventory6,037 2,949 
$12,109 $7,850 
 As of
(in thousands)June 30,
2021
December 31,
2020
Equity method investment in Tinuum Group$$3,387 
Equity method investment in Tinuum Services3,501 4,242 
Equity method investment in other63 63 
Total equity method investments$3,564 $7,692 
12

Advanced Emissions Solutions, Inc. and Subsidiaries
Notes to Condensed Consolidated Financial Statements
(Unaudited)
The following table details the components of the Company's respective equity method investments included in the Earnings from equity method investments line item on the Condensed Consolidated Statements of Operations:
Three Months Ended June 30,Six Months Ended June 30,
(in thousands)2021202020212020
Earnings from Tinuum Group$19,125 $6,764 $35,487 $13,202 
Earnings from Tinuum Services2,312 1,404 4,262 3,242 
Earnings (loss) from other(3)
Earnings from equity method investments$21,437 $8,168 $39,749 $16,441 
The following table details the components of the cash distributions from the Company's respective equity method investments included as a component of cash flows from operating activities and investing activities in the Condensed Consolidated Statements of Cash Flows. Distributions from equity method investees are reported in the Condensed Consolidated Statements of Cash Flows as "Distributions from equity method investees, return on investment" within Operating cash flows until such time as the carrying value in an equity method investee company is reduced to zero. Thereafter, such distributions are reported as "distributions in excess of cumulative earnings" as a component of cash flows from investing activities.
Six Months Ended June 30,
(in thousands)20212020
Distributions from equity method investees, return on investment
Tinuum Group$14,142 $27,364 
Tinuum Services5,002 5,152 
$19,144 $32,516 
Distributions from equity method investees in excess of investment basis
Tinuum Group$24,732 $
$24,732 $

Note 7 - Inventories, netCommitments and Contingencies
The following table summarizesRetention Agreements
On May 4, 2022, the Compensation Committee of the Board of Directors and the Board of Directors (the "Board") approved the amendment to retention agreements (the "Retention Agreements" and each a "Retention Agreement"), which had been executed in May 2021, between the Company and its executive officers and certain other key employees in order to maintain the Company's inventories recordedbusiness operations while it pursues and executes on its strategic initiatives (the "Amended Retention Agreements"). Under the Amended Retention Agreements, employees will receive (i) 40% of the original amount agreed to in the Retention Agreements ("Retention Pay") in August 2022; (ii) 60% of the Retention Pay on the earliest of (1) the date the employee’s employment is terminated without Cause or for Good Reason (as those terms are defined in the Retention Agreement or the employee’s employment agreement, as applicable), (2) 90 days after a Transaction Date or a Change in Control (as those terms are defined in the Retention Agreement or the employee’s employment agreement, as applicable), or (3) in January 2023; and (iii) an additional lump sum payment, ranging from 10% to 40% of the Retention Pay, will also be paid at the lowerearliest of average cost(1) the date the employee’s employment is terminated without Cause or net realizable valuefor Good Reason (as those terms are defined in the Retention Agreement or the employee’s employment agreement, as applicable), (2) 90 days after a Transaction Date or a Change in Control (as those terms are defined in the Retention Agreement or the employee’s employment agreement, as applicable), or (3) in January 2023.
In order to receive the Amended Retention Agreements payments, employees must remain employed at the Company through the dates above. As of June 30, 20212022, the total cash payable pursuant to the Amended Retention Agreements is $2.5 million and is included in the "Other current liabilities" line item in the Condensed Consolidated Balance Sheet.
Surety Bonds and Restricted Cash
As the owner of the Marshall Mine, the Company is required to post a surety bond with a regulatory commission. As of June 30, 2022 and December 31, 2020:
As of
(in thousands)June 30, 2021December 31, 2020
Product inventory, net$6,639 $8,361 
Raw material inventory1,522 1,521 
$8,161 $9,882 

13

Advanced Emissions Solutions, Inc. and Subsidiaries
Notes to Condensed Consolidated Financial Statements
(Unaudited)
Note 8 - Debt Obligations
As of
(in thousands)June 30, 2021December 31, 2020
Finance lease obligations$4,738 $5,526 
PPP Loan3,305 3,305 
Senior Term Loan due December 2021, related party16,000 
Less: net unamortized debt issuance costs(465)
Less: net unamortized debt discount(480)
Senior Term Loan due December 2021, net15,055 
8,043 23,886 
Less: Current maturities(4,373)(18,441)
Total long-term debt$3,670 $5,445 
Senior Term Loan
On December 7, 2018,2021, the Company had posted a $16.6 million surety bond (the "MM Surety Bond") which will remain in place until the Marshall Mine is fully reclaimed, and ADA-ES, Inc. ("ADA"), a wholly-owned subsidiary, and certain other subsidiariesmay be further reduced in amount from time to time as the Company progresses with its reclamation activities.
As the owner of the Five Forks Mine, the Company as guarantors, The Bankis required to post a surety bond with a regulatory commission. As of New York Mellon as administrative agent,June 30, 2022 and Apollo Credit Strategies Master Fund Ltd and Apollo A-N Credit Fund (Delaware) L.P. (collectively "Apollo")December 31, 2021, affiliates ofthe Company had posted a beneficial owner of greater than 5 percent of the Company's common stock and a related party, entered into the Term Loan and Security Agreement (the "Senior Term Loan") in the amount of $70.0 $7.5 million less original issue discount of $2.1 million. Proceeds from the Senior Term Loan were used to fund the acquisition of Carbon Solutions. The Company also paid debt issuance costs of $2.0 million surety bond related to the Senior Term Loan. The Senior Term Loan bore interest at a rate equal to 3-month LIBOR (subject to a 1.5% floor) + 4.75% per annum, which was adjusted quarterly to the current 3-month LIBOR rate, and interest was payable quarterly in arrears. The Senior Term Loan was secured by substantially all the assets of the Company, including the cash flows from Tinuum Group and Tinuum Services (collectively, the "Tinuum Entities"), but excluding the Company's equity interests in the Tinuum entities.
On June 1, 2021 and prior to the Senior Term Loan's maturity date, the Company paid-off in its entirety the Senior Term Loan and all remaining accrued interest through this date in the amount of $6.1 million. The Company did 0t incur any prepayment feesperformance requirements associated with the early pay-off.
Line of Credit
In September 2013, ADA, as borrower, and the Company, as guarantor, entered into a line credit (the "Line of Credit") with a bank (the "Lender") for an aggregate borrowing amount of $10.0 million, which was secured by certain amounts due to the Company from certain Tinuum Group RC leases. The Line of Credit has been amended 15 times from the period from December 2, 2013 through June 30, 2021 and included a reduction in the borrowing amount to $5.0 million in September 2018.
On March 23, 2021, ADA, the Company and the Lender entered into an amendment to the Line of Credit (the "Fifteenth Amendment"), which extended the maturity date of the Line of Credit to December 31, 2021 and increased the minimum cash requirement from $5.0 million to $6.0 million.Five Forks Mine.
As of June 30, 20212022 and December 31, 2020, there were 0 outstanding borrowings under the Line of Credit.
On July 29, 2021, the Company posted collateral of $10.0 million for both the Marshall Mine and Five Forks Mine as required by the Lender entered intoCompany's surety bond provider, which is reported as long-term restricted cash on the Sixteenth Amendment (the "Sixteenth Amendment") to the Line of Credit. The Sixteenth Amendment amends certain terms and conditions related to collateral securing the Line of Credit.Condensed Consolidated Balance Sheets.
Note 9 - Leases
As of June 30, 2021 and December 31, 2020, the Company had obligations under finance leases of $4.7 million and $5.5 million, respectively, and obligations under operating leases of $5.0 million and $3.0 million, respectively. As of June 30, 2021 and December 31, 2020, the Company had right of use ("ROU") assets, net of accumulated amortization, under finance leases of $2.0 million and $2.4 million, respectively, and ROU assets, net of accumulated amortization, under operating leases of $4.4 million and $1.9 million, respectively.
1412

Advanced Emissions Solutions, Inc. and Subsidiaries
Notes to Condensed Consolidated Financial Statements
(Unaudited)
Finance leasesTinuum Group
ROU assets under finance leasesThe Company has certain limited obligations contingent upon future events in connection with the activities of Tinuum Group. The Company, NexGen Refined Coal, LLC ("NexGen") and finance lease liabilities are included in Property, plant and equipment and Current portion and Long-term portion2 entities affiliated with NexGen have provided an affiliate of borrowings, respectively, in the Condensed Consolidated Balance Sheets as of June 30, 2021 and December 31, 2020. Interest expenseGoldman Sachs Group, Inc. with limited guaranties (the "Tinuum Group Party Guaranties") related to finance lease liabilitiescertain losses it may suffer as a result of inaccuracies or breach of representations and amortization of ROU assets under finance leases are included in Interest expense and Depreciation, amortization, depletion and accretion, respectively, in the Condensed Consolidated Statements of Operations for the three and six months ended June 30, 2021 and June 30, 2020.
Operating leases
ROU assets under operating leases and operating lease liabilities are included in Other long-term assets and Other current liabilities and Other long-term liabilities, respectively, in the Condensed Consolidated Balance Sheets as of June 30, 2021 and December 31, 2020.
Lease expense for operating leases for the three and six months ended June 30, 2021 was $0.9 million and $1.9 million, respectively, of which $0.8 million and $1.7 million, respectively,covenants committed by Tinuum Group. The Company also is included in Consumables - cost of revenue, exclusive of depreciation and amortization, and $0.1 million and $0.2 million, respectively, is included in General and administrative in the Condensed Consolidated Statement of Operations. Lease expense for operating leases for the three and six months ended June 30, 2020 was $1.1 million and $2.4 million, respectively, of which $1.0 million and $2.0 million, respectively, is included in Consumables - cost of revenue, exclusive of depreciation and amortization, and $0.2 million and $0.4 million, respectively, is included in General and administrative in the Condensed Consolidated Statement of Operations.
Lease financial information as of and for the three and six months ended June 30, 2021 and 2020 is provided in the following table:
Three Months Ended June 30,Six Months Ended June 30,
(in thousands)2021202020212020
Finance lease cost:
Amortization of right-of-use assets$174 $465 $348 $979 
Interest on lease liabilities70 93 149 187 
Operating lease cost453 676 912 1,529 
Short-term lease cost406 424 973 706 
Variable lease cost (1)12 44 21 137 
Total lease cost$1,115 $1,702 $2,403 $3,538 
Other Information:
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from finance leases$149 $187 
Operating cash flows from operating leases$1,314 $1,213 
Financing cash flows from finance leases$818 $676 
Right-of-use assets obtained in exchange for new operating lease liabilities$3,362 $60 
Weighted-average remaining lease term - finance leases3.3 years3.8 years
Weighted-average remaining lease term - operating leases2.9 years2.1 years
Weighted-average discount rate - finance leases6.4 %6.1 %
Weighted-average discount rate - operating leases7.8 %8.5 %
(1) Primarily includes common area maintenance, property taxes and insurance payable to lessors.
Note 10 - Revenues
Trade receivables represent an unconditional right to consideration in exchange for goods or services transferreda party to a customer.contribution agreement with NexGen under which any party called upon to pay on a Tinuum Group Party Guaranty is entitled to receive contributions from the other party equal to 50% of the amount paid. The Company invoices its customers in accordance with the terms of the contract. Credit terms are generally net 30 from the date of invoice. The timing between the satisfaction of performance obligations and when payment is due from the customer is
15

Advanced Emissions Solutions, Inc. and Subsidiaries
Noteshas not recorded a liability or expense provision related to Condensed Consolidated Financial Statements
(Unaudited)
generally not significant. The Company records allowances for doubtful trade receivables whenthis contingent obligation as it believes that it is not probable that the balancesa loss will not be collected.
Trade receivables, net
The following table shows the components of the Company's Trade receivables, net:
As of
(in thousands)June 30, 2021December 31, 2020
Trade receivables$9,983 $12,241 
Less: Allowance for doubtful accounts(39)(37)
Trade receivables, net$9,944 $12,204 
Cabot Receivable
The following table shows the components of the Cabot Receivable:
As of
(in thousands)June 30, 2021December 31, 2020
Receivables, net$1,616 $921 
Other long-term assets, net7,952 8,852 
Total Cabot Receivable$9,568 $9,773 

Disaggregation of Revenue and Earnings from Equity Method Investments
For the three and six months ended June 30, 2021 and 2020, all performance obligations related to revenues recognized were satisfied at a point in time. The Company disaggregates its revenues by major components as well as between its 2 reportable segments, which are further discussed in Note 17occur with respect to the Condensed Consolidated Financial Statements. The following tables disaggregate revenues by major component for the three and six months ended June 30, 2021 and 2020 (in thousands):
Three Months Ended June 30, 2021Six Months Ended June 30, 2021
SegmentSegment
APTRCTotalAPTRCTotal
Revenue component
Consumables$15,976 $$15,976 $33,007 $$33,007 
License royalties, related party3,657 3,657 7,723 7,723 
Revenues from customers15,976 3,657 19,633 33,007 7,723 40,730 
Earnings from equity method investments21,437 21,437 39,749 39,749 
Total revenues from customers and earnings from equity method investments$15,976 $25,094 $41,070 $33,007 $47,472 $80,479 
16

Advanced Emissions Solutions, Inc. and Subsidiaries
Notes to Condensed Consolidated Financial Statements
(Unaudited)
Three Months Ended June 30, 2020Six Months Ended June 30, 2020
SegmentSegment
APTRCTotalAPTRCTotal
Revenue component
Consumables$8,170 $$8,170 $17,387 $$17,387 
License royalties, related party3,313 3,313 6,359 6,359 
Revenues from customers8,170 3,313 11,483 17,387 6,359 23,746 
Earnings from equity method investments8,168 8,168 16,441 16,441 
Total revenues from customers and earnings from equity method investments$8,170 $11,481 $19,651 $17,387 $22,800 $40,187 
Note 11 - Commitments and ContingenciesTinuum Group Party Guaranties.
Legal Proceedings
The Company is from time to time subject to and is presently involved in, various pending or threatened legal actions and proceedings, including those that arise in the ordinary course of its business. Such matters are subject to many uncertainties and outcomes, the financial impacts of which are not predictable with assurance and that may not be known for extended periods of time. The Company records a liability in its consolidated financial statements for costs related to claims, settlements and judgments where management has assessed that a loss is probable and an amount can be reasonably estimated. There were no significant legal proceedings as of June 30, 2021.2022.
Restricted Cash
Note 8 - Supplemental Financial Information
Supplemental Balance Sheet Information
The following table summarizes the components of Other long-term assets, net as presented in the Condensed Consolidated Balance Sheets:
As of
(in thousands)June 30,
2022
December 31,
2021
Other long-term assets, net:
Right of use assets, operating leases, net$8,118 $6,000 
Upfront Customer Consideration6,728 6,982 
Mine development costs, net5,461 5,330 
Spare parts, net4,710 4,598 
Mine reclamation asset, net1,691 1,742 
Intangible assets, net1,028 1,237 
Equity method investments— 2,391 
Other1,839 1,745 
Norit Receivable— 6,846 
$29,575 $36,871 
Spare parts include critical spares required to support plant operations. Parts and supply costs are determined using the lower of cost or estimated replacement cost. Parts are recorded as maintenance expenses in the period in which they are consumed or are capitalized if applicable.
Mine development costs include acquisition costs, the cost of other development work and mitigation costs related to the Five Forks Mine and are depleted over the estimated life of the related mine reserves. The Company performs an evaluation of the recoverability of the carrying value of mine development costs to determine if facts and circumstances indicate that their carrying value may be impaired and if any adjustment is warranted. There were no indicators of impairment as of June 30, 2022. Mine reclamation asset, net represents an asset retirement obligation ("ARO") asset related to the Five Forks Mine and is depreciated over its estimated life.
As of June 30, 2022 and December 31, 2021, Other includes the Highview Investment in the amount of $0.6 million and $0.6 million, respectively, that is carried at cost, less impairment, plus or minus observable changes in price for identical or similar investments of the same issuer. Fair value measurements, if any, represent Level 2 measurements. The Highview Investment is evaluated for indicators of impairment such as an event or change in circumstances that may have a significant adverse effect on the fair value of the investment. There were no changes to the carrying value of the Highview Investment for the three and
13

Advanced Emissions Solutions, Inc. and Subsidiaries
Notes to Condensed Consolidated Financial Statements
(Unaudited)
six months ended June 30, 2022 as there were no indicators of impairment or observable price changes for identical or similar investments.
The following table details the components of Other current liabilities and Other long-term liabilities as presented in the Condensed Consolidated Balance Sheets:
 As of
(in thousands)June 30,
2022
December 31,
2021
Other current liabilities:
Current portion of operating lease obligations$2,742 $2,157 
Income and other taxes payable1,173 807 
Other1,287 2,160 
$5,202 $5,124 
Other long-term liabilities:
Mine reclamation liabilities$8,203 $8,184 
Operating lease obligations, long-term5,592 4,178 
Other867 — 
$14,662 $12,362 
The Mine reclamation liability related to the Five Forks Mine is included in Other long-term liabilities. The Mine reclamation liability related to Marshall Mine is included in Other current liabilities and Other long-term liabilities. The Mine reclamation liabilities represent AROs and changes for the three and six months ended June 30, 2022 and year ended December 31, 2021 were as follows:
As of
(in thousands)June 30, 2022December 31, 2021
Asset retirement obligations, beginning of period$9,959 $21,447 
Accretion308 1,102 
Liabilities settled(1,807)(10,010)
Changes due to scope and timing of reclamation (1)34 (2,580)
Asset retirement obligations, end of period8,494 9,959 
Less current portion291 1,775 
Asset retirement obligations, long-term$8,203 $8,184 
(1) As of June 30, 2021 and December 31, 2020,2021, the Company had short-term restricted cashrevised its estimate of $6.0future obligations owed for the reclamation of the Marshall Mine primarily based on scope reductions related to future reclamation requirements. As a result, the Company reduced the Marshall Mine ARO by $2.7 million and $5.0 million, respectively, as required under a minimum cash balance requirement of a Line of Credit covenant, and long-term restricted cash of $10.0 million and $5.0 million, respectively, as required under the Surety Agreement.
Other Commitments and Contingencies
The Company has certain limited obligations contingent upon future events in connection with the activities of Tinuum Group. The Company, NexGen Refined Coal, LLC ("NexGen") and 2 entities affiliated with NexGen have provided an affiliate of the Goldman Sachs Group, Inc. with limited guaranties (the "Tinuum Group Party Guaranties") related to certain losses it may suffer as a result of inaccuracies or breach of representations and covenants. The Company also is a party to a contribution agreement with NexGen under which any party called upon to pay on a Tinuum Group Party Guaranty is entitled to receive contributions from the other party equal to 50% of the amount paid. The Company has 0t recorded a liability or expense provision related to this contingent obligation as it believes that it is not probable that a loss will occur with respect tocorresponding gain on change in estimate of $2.7 million for the Tinuum Group Party Guaranties.year ended December 31, 2021.
Note 129 - Equity Method Investments
Tinuum Group, LLC
As of June 30, 2022 and December 31, 2021, the Company's ownership interest in Tinuum Group was 42.5%. Tinuum Group supplied technology equipment and technical services at select coal-fired generators, but its primary purpose was to put into operation facilities that produced and sold RC that lowered emissions and also qualified for Section 45 tax credits. The Company concluded that Tinuum Group was a VIE, but the Company did not have the power to direct the activities that most significantly impacted Tinuum Group's economic performance, as the voting partners of Tinuum Group have identical voting rights, equity control interests and board control interests, and therefore power was shared. Accordingly, the Company has accounted for its investment in Tinuum Group under the equity method of accounting since inception.
14

Advanced Emissions Solutions, Inc. and Subsidiaries
Notes to Condensed Consolidated Financial Statements
(Unaudited)
The following table summarizes the results of operations of Tinuum Group:
Three Months Ended June 30,Six Months Ended June 30,
(in thousands)2022202120222021
Gross profit$— $8,820 $964 $11,495 
Operating, selling, general and administrative expenses1,051 12,429 4,248 26,231 
Loss from operations(1,051)(3,609)(3,284)(14,736)
Other income (expenses), net27 3,150 528 4,003 
(Income) loss attributable to noncontrolling interest(580)29,038 (874)64,616 
Net (loss) income available to members$(1,604)$28,579 $(3,630)$53,883 
ADES equity earnings from Tinuum Group$2,125 $19,125 $3,137 $35,487 
For the three and six months ended June 30, 2022 and 2021, the Company recognized earnings from Tinuum Group's net (loss) income available to members that were different from its pro-rata share of Tinuum Group's net (loss) income available to members for those periods, as cash distributions for the three and six months ended June 30, 2022 and 2021 exceeded the carrying value of the Tinuum Group equity investment.
The following tables present the Company's investment balance, equity earnings and cash distributions in excess of the investment balance, if any, for the three and six months ended June 30, 2022 and 2021 (in thousands):
DescriptionDate(s)Investment balanceADES equity earningsCash distributionsMemorandum Account: Cash distributions and equity earnings in (excess) of investment balance
Beginning balance12/31/2021$— $— $— $(21,779)
ADES proportionate share of net loss from Tinuum GroupFirst Quarter(861)(861) — 
Recovery of prior cash distributions in excess of investment balance (prior to cash distributions)First Quarter(21,779)(21,779)— 21,779 
Cash distributions from Tinuum GroupFirst Quarter(1,012)— 1,012 — 
Adjustment for current year cash distributions in excess of investment balanceFirst Quarter23,652 23,652 — (23,652)
Total investment balance, equity earnings and cash distributions3/31/2022$— $1,012 $1,012 $(23,652)
ADES proportionate share of net loss from Tinuum GroupSecond Quarter(682)$(682)$— — 
Recovery of prior cash distributions in excess of investment balance (prior to cash distributions)Second Quarter(23,652)(23,652)— 23,652 
Cash distributions from Tinuum GroupSecond Quarter(2,125)— 2,125 — 
Adjustment for current year cash distributions in excess of investment balanceSecond Quarter26,459 26,459 — (26,459)
Total investment balance, equity earnings and cash distributions6/30/2022$— $2,125 $2,125 $(26,459)
15

Advanced Emissions Solutions, Inc. and Subsidiaries
Notes to Condensed Consolidated Financial Statements
(Unaudited)
DescriptionDate(s)Investment balanceADES equity earningsCash distributionsMemorandum Account: Cash distributions and equity earnings in (excess) of investment balance
Beginning balance12/31/2020$3,387 $— $— $— 
ADES proportionate share of net income from Tinuum GroupFirst Quarter10,755 10,755 — — 
Cash distributions from Tinuum GroupFirst Quarter(19,749)— 19,749 — 
Adjustment for current year cash distributions in excess of investment balanceFirst Quarter5,607 5,607 — (5,607)
Total investment balance, equity earnings and cash distributions3/31/2021$— $16,362 $19,749 $(5,607)
ADES proportionate share of net income from Tinuum GroupSecond Quarter$12,146 $12,146 $— $— 
Recovery of prior cash distributions in excess of investment balance (prior to cash distributions)Second Quarter(5,607)(5,607) 5,607 
Cash distributions from Tinuum GroupSecond Quarter(19,125)— 19,125 — 
Adjustment for current year cash distributions in excess of investment balanceSecond Quarter12,586 12,586 — (12,586)
Total investment balance, equity earnings and cash distributions6/30/2021$— $19,125 $19,125 $(12,586)
Tinuum Services, LLC
The Company has a 50% voting and economic interest in Tinuum Services as of June 30, 2022 and December 31, 2021. The Company determined that Tinuum Services was not a VIE and further evaluated it for consolidation under the voting interest model. Because the Company did not own greater than 50% of the outstanding voting shares, either directly or indirectly, it has accounted for its investment in Tinuum Services under the equity method of accounting since inception. As of June 30, 2022 and December 31, 2021, the Company’s investment in Tinuum Services was zero and $2.4 million, respectively.
The following table summarizes the results of operations of Tinuum Services:
 Three Months Ended June 30,Six Months Ended June 30,
(in thousands)2022202120222021
Gross profit (loss)$78 $(22,641)$1,046 $(41,163)
Operating, selling, general and administrative expenses172 47,355 2,717 101,722 
Loss from operations(94)(69,996)(1,671)(142,885)
Other income (expenses), net263 32 1,157 (394)
(Income) loss attributable to noncontrolling interest— 74,587 323 151,802 
Net income (loss)$169 $4,623 $(191)$8,523 
ADES equity earnings from Tinuum Services$264 $2,312 $84 $4,262 
Included in the Condensed Consolidated Statements of Operations of Tinuum Services for the three and six months ended June 30, 2022 and 2021 was income (loss) attributable to noncontrolling interests of Tinuum Services' VIE entities, which was eliminated in the calculation of Tinuum Services' net income (loss) attributable to the Company's interest.
For the three and six months ended June 30, 2022, the Company recognized earnings from Tinuum Services' net income (loss) available to members that were different from its pro-rata share of Tinuum Services' net income (loss) available to members for those periods, as cash distributions for the three and six months ended June 30, 2022 exceeded the carrying value of the Tinuum Services' equity investment.
16

Advanced Emissions Solutions, Inc. and Subsidiaries
Notes to Condensed Consolidated Financial Statements
(Unaudited)
The following tables present the Company's investment balance, equity earnings and cash distributions in excess of the investment balance, if any, for the three and six months ended June 30, 2022 (in thousands):
DescriptionDate(s)Investment balanceADES equity earningsCash distributionsMemorandum Account: Cash distributions and equity earnings in (excess) of investment balance
Beginning balance12/31/2021$2,391 $— $— $— 
ADES proportionate share of net loss from Tinuum ServicesFirst Quarter(180)(180)— — 
Cash distributions from Tinuum ServicesFirst Quarter(1,501)— 1,501 — 
Total investment balance, equity earnings and cash distributions3/31/2022$710 $(180)$1,501 $— 
ADES proportionate share of net income from Tinuum ServicesSecond Quarter$85 $85 $— $— 
Cash distributions from Tinuum ServicesSecond Quarter(974)— 974 — 
Adjustment for current year cash distributions in excess of investment balanceSecond Quarter179 179 — (179)
Total investment balance, equity earnings and cash distributions6/30/2022$— $264 $974 $(179)
The following table details the carrying value of the Company's respective equity method investments included in the Equity method investments line item on the Condensed Consolidated Balance Sheets and indicates the Company's maximum exposure to loss:
As of
(in thousands)June 30,
2022
December 31,
2021
Equity method investment in Tinuum Services$— $2,391 
Total equity method investments$— $2,391 
17

Advanced Emissions Solutions, Inc. and Subsidiaries
Notes to Condensed Consolidated Financial Statements
(Unaudited)
The following table details the components of the Company's respective equity method investments included in the "Earnings from equity method investments" line item on the Condensed Consolidated Statements of Operations:
Three Months Ended June 30,Six Months Ended June 30,
(in thousands)2022202120222021
Earnings from Tinuum Group$2,125 $19,125 $3,137 $35,487 
Earnings from Tinuum Services264 2,312 84 4,262 
Earnings from other— — — 
Earnings from equity method investments$2,389 $21,437 $3,222 $39,749 
The following table details the components of the cash distributions from the Company's respective equity method investments included as a component of cash flows from operating activities and investing activities in the Condensed Consolidated Statements of Cash Flows. Distributions from equity method investees are reported in the Condensed Consolidated Statements of Cash Flows as "Distributions from equity method investees, return on investment" as a component of cash flows from operations until such time as the carrying value in an equity method investee company is reduced to zero. Thereafter, such distributions are reported as "Distributions from equity method investees in excess of cumulative earnings" as a component of cash flows from investing activities.
Six Months Ended June 30,
(in thousands)20222021
Distributions from equity method investees, return on investment
Tinuum Services$2,297 $5,002 
Tinuum Group— 14,142 
$2,297 $19,144 
Distributions from equity method investees in excess of investment basis
Tinuum Group$3,137 $24,732 
Tinuum Services179 — 
$3,316 $24,732 
Note 10 - Stockholders' Equity
Stock Repurchase ProgramsProgram
In November 2018, the Company's Board of Directors (the "Board") authorized the Company to purchase up to $20.0 million of its outstanding common stock under a stock repurchase program (the "Stock Repurchase Program"), which was to remain in effect until December 31, 2019 unless otherwise modified by the Board. As of November 2019, $2.9 million remained outstanding related to the Stock Repurchase Program. In November 2019, the Board authorized an incremental $7.1 million to the Stock Repurchase Program and provided that it will remain in effect until all amounts are utilized or it is otherwise modified by the Board.
Under the Stock Repurchase Program, for the three and six months ended June 30, 2021, the Company did 0t repurchase any shares. For the three and six months ended June 30, 2020, the Company purchased 0 and 20,613 shares, respectively, of its common stock for cash of 0 and $0.2 million, respectively, inclusive of commissions and fees. As of June 30, 2021,2022, the Company had $7.0 million remaining under the Stock Repurchase Program.
17

Advanced Emissions Solutions, Inc. and Subsidiaries
Notes to Condensed Consolidated Financial Statements
(Unaudited)
Quarterly Cash Dividend
Dividends declared and paid quarterly on all outstanding shares of common stock during the three and six months ended June 30, 2021 and 2020 were as follows:
20212020
Per shareDate paidPer shareDate paid
Dividends declared during quarter ended:
March 31$N/A$0.25 March 10, 2020
June 30$N/A$N/A
$$0.25 
A portion of the dividends declared remains accrued subsequent to the payment dates and represents dividends accumulated on nonvested shares of common stock held by employees and directors of the Company that contain forfeitable dividend rights that are not payable until the underlying shares of common stock vest. These amounts are included in both Other current liabilities and Other long-term liabilities on the Condensed Consolidated Balance Sheets as of June 30, 2021 and December 31, 2020.
Tax Asset Protection Plan
U.S. federal income tax rules, and Section 382 of the Internal Revenue Code in particular, could substantially limit the use of net operating losses and other tax assetscredits if the Company experiences an "ownership change" (as defined in the Internal Revenue Code). In general, an ownership change occurs if there is a cumulative change in the ownership of the Company by "5 percent stockholders" that exceeds 50 percentage points over a rolling three-year period.
On May 5, 2017, the Board approved the declaration of a dividend of rights to purchase Series B Junior Participating Preferred Stock for each outstanding share of common stock as part of a tax asset protection plan (the "TAPP") designed to protect the Company’s ability to utilize its net operating losses and tax credits. The TAPP is intended to act as a deterrent to any person acquiring beneficial ownership of 4.99% or more of the Company’s outstanding common stock.
On April 9, 2021,March 15, 2022, the Board approved the FourthFifth Amendment to the TAPP ("Fourth(the "Fifth Amendment") that, which amends the TAPP, as previously amended by the First, Second, Third and ThirdFourth Amendments that were approved the Board on April 6, 2018, April 5, 2019, April 9, 2020 and April 9, 2020,2021, respectively. The FourthFifth Amendment amends the definition of "Final Expiration Date" under the TAPP to extend the duration of the TAPP and makes associated changes in connection therewith. At the Company's 2021 annual meeting of stockholders, the Company's stockholders approved the Fourth Amendment, thus the Final Expiration Date will be the close of business on December 31, 2022.
Note 13 - Stock-Based Compensation
The Company grants equity-based awardsPursuant to employees, non-employee directors, and consultants that may include, but are not limited to, RSA's, restricted stock units ("RSU's"), performance stock units ("PSU's") and stock options. Stock-based compensation expense related to manufacturing employees and administrative employees is included within the Cost of revenue and Payroll and benefits line items, respectively, in the Condensed Consolidated Statements of Operations. Stock-based compensation expense related to non-employee directors and consultants is included within the General and administrative line item in the Condensed Consolidated Statements of Operations.
Total stock-based compensation expense for the three and six months ended June 30, 2021 and 2020 was as follows:
 Three Months Ended June 30,Six Months Ended June 30,
(in thousands)2021202020212020
RSA expense$511 $975 $918 $1,481 
PSU expense55 163 69 163 
Total stock-based compensation expense$566 $1,138 $987 $1,644 
18

Advanced Emissions Solutions, Inc. and Subsidiaries
Notes to Condensed Consolidated Financial Statements
(Unaudited)
The amountthe Fifth Amendment, the Final Expiration Date shall be the close of unrecognized compensation cost asbusiness on the earlier of June 30, 2021, and(i) December 31, 2023 or (ii) December 31, 2022 if stockholder approval of the expected weighted-average period over whichFifth Amendment has not been obtained prior to such date. At the costCompany's 2022 annual meeting of stockholders, the Company's stockholders approved the Fifth Amendment, thus the Final Expiration Date will be recognized is as follows:
As of June 30, 2021
(in thousands)Unrecognized Compensation CostExpected Weighted-
Average Period of
Recognition (in years)
RSA expense$2,736 2.31
PSU expense490 2.24
Total unrecognized stock-based compensation expense$3,226 2.30
Restricted Stock
Restricted stock is typically granted with vesting termsthe close of three years. The fair value of RSA's and RSU's is determined basedbusiness on the closing price of the Company’s common stock on the authorization date of the grant multiplied by the number of shares subject to the stock award. Compensation expense for RSA's is generally recognized on a straight-line basis over the entire vesting period.
A summary of RSA activity under the Company's various stock compensation plans for the six months ended June 30, 2021 is presented below:
Restricted StockWeighted-Average Grant Date Fair Value
Non-vested at January 1, 2021373,860 $7.25 
Granted387,632 $5.28 
Vested(183,700)$7.45 
Forfeited(31,623)$5.75 
Non-vested at June 30, 2021546,169 $5.88 
Performance Share Units
Compensation expense is recognized for PSU awards on a straight-line basis over the applicable service period, which is generally three years, based on the estimated fair value at the date of grant using a Monte Carlo simulation model. A summary of PSU activity for the six months ended June 30, 2021 is presented below:
UnitsWeighted-Average
Grant Date
Fair Value
Aggregate Intrinsic Value (in thousands)Weighted-Average
Remaining
Contractual
Term (in years)
PSU's outstanding, January 1, 202150,127 $6.17 
Granted62,448 7.09 
Vested / Settled
Forfeited / Canceled
PSU's outstanding, June 30, 2021112,575 $6.68 $834 2.24
19
December 31, 2023.

Advanced Emissions Solutions, Inc. and Subsidiaries
Notes to Condensed Consolidated Financial Statements
(Unaudited)
Note 1411 - Supplemental Financial Information
Supplemental Balance Sheet InformationStock-Based Compensation
The following table summarizesCompany grants equity-based awards to employees, non-employee directors and consultants that may include, but are not limited to, RSA's, PSU's, restricted stock units and stock options. Stock-based compensation expense related to manufacturing employees and administrative employees is included within the components"Cost of Prepaid expensesrevenue" and other assets"Payroll and Other long-term assets, net as presentedbenefits" line items, respectively, in the Condensed Consolidated Balance Sheets:
As of
(in thousands)June 30,
2021
December 31,
2020
Prepaid expenses and other assets:
Prepaid expenses$2,278 $1,690 
Prepaid income taxes and income tax refunds1,723 1,605 
Other1,319 1,302 
$5,320 $4,597 
Other long-term assets, net:
Cabot Receivable (1)$7,952 $8,852 
Upfront Customer Consideration (1)7,236 7,490 
Mine development costs, net4,837 4,338 
Right of use assets, operating leases, net4,380 1,930 
Spare parts, net4,173 3,727 
Mine reclamation asset, net1,666 1,712 
Highview Investment552 552 
Other1,481 1,388 
$32,277 $29,989 
(1) See further discussionStatements of Upfront Customer Consideration in Note 3Operations. Stock-based compensation expense related to non-employee directors and Cabot Receivable in Note 4consultants is included within the "General and Note 10.
Spare parts include critical spares required to support plant operations. Parts and supply costs are determined using the lower of cost or estimated replacement cost. Parts are recorded as maintenance expensesadministrative" line item in the period in which they are consumed.Condensed Consolidated Statements of Operations.
Mine development costs include acquisition costs, the cost of other development work and mitigation costs related to the Five Forks Mine and are depleted over the estimated life of the related mine reserves. The Company performs an evaluation of the recoverability of the carrying value of mine development costs to determine if facts and circumstances indicate that their carrying value may be impaired and if any adjustment is warranted. There were no indicators of impairment as of June 30, 2021. Mine reclamation asset, net represents an asset retirement obligation ("ARO") asset related to the Five Forks Mine and is depreciated over the estimated life of the Five Forks Mine.
The Company holds a long-term investment (the "Highview Investment") in Highview Enterprises Limited ("Highview"), a UK-based developmental stage company specializing in power storage. The Company accounts for the Highview Investment as an investment recorded at cost, less impairment, plus or minus observable changes in price for identical or similar investments of the same issuer.
The Highview Investment is evaluated for indicators of impairment such as an event or change in circumstances that may have a significant adverse effect on the fair value of the investment. There were no changes to the carrying value of the Highview InvestmentTotal stock-based compensation expense for the three and six months ended June 30, 2022 and 2021 was as there were no indicatorsfollows:
 Three Months Ended June 30,Six Months Ended June 30,
(in thousands)2022202120222021
RSA expense$393 $511 $820 $918 
PSU expense91 55 128 69 
Total stock-based compensation expense$484 $566 $948 $987 
The amount of impairment or observableunrecognized compensation cost as of June 30, 2022, and the expected weighted-average period over which the cost will be recognized is as follows:
As of June 30, 2022
(in thousands, expect years)Unrecognized Compensation CostExpected Weighted-
Average Period of
Recognition (in years)
RSA expense$3,051 2.20
PSU expense735 1.82
Total unrecognized stock-based compensation expense$3,786 2.13
Restricted Stock
Restricted stock is typically granted with vesting terms of three years. The fair value of RSA's is determined based on the closing price changesof the Company’s common stock on the authorization date of the grant multiplied by the number of shares subject to the stock award. Compensation expense for identical or similar investments.RSA's is generally recognized on a straight-line basis over the entire vesting period.
A summary of RSA activity under the Company's various stock compensation plans for the six months ended June 30, 2022 is presented below:
Restricted StockWeighted-Average Grant Date Fair Value
Non-vested at January 1, 2022531,623 $5.94 
Granted336,079 $6.40 
Vested(229,871)$6.54 
Forfeited(41,974)$6.00 
Non-vested at June 30, 2022595,857 $5.95 
2019

Advanced Emissions Solutions, Inc. and Subsidiaries
Notes to Condensed Consolidated Financial Statements
(Unaudited)
The following table details the components of Other current liabilities and Other long-term liabilities as presented in the Condensed Consolidated Balance Sheets:Performance Share Units
 As of
(in thousands)June 30,
2021
December 31,
2020
Other current liabilities:
Current portion of operating lease obligations$2,342 $1,883 
Current portion of mine reclamation liability6,986 9,370 
Income and other taxes payable2,159 1,305 
Other current liabilities468 438 
$11,955 $12,996 
Other long-term liabilities:
Mine reclamation liabilities$8,137 $12,077 
Operating lease obligations, long-term2,698 1,109 
Other long-term liabilities (1)557 287 
$11,392 $13,473 
(1) Included within Other long-term liabilitiesCompensation expense is $0.3 million related to agreements the Company entered into with all of its executive officers and certain other key employees of the organization ("Retention Agreements"). The Retention Agreements arerecognized for the benefit of retaining those officers and key employees in order to maintain the Company’s current business operations while it pursues and executesPSU's on its strategic initiatives. The Retention Agreements with the executive officers were approved by the Compensation Committee of the Board of Directors and the Board of Directors on May 5, 2021. The Company is recognizing expensea straight-line basis over the expectedapplicable service period, which is generally three years, based on certain conditions outlined in the Retention Agreements.
The Mine reclamation liability related toestimated fair value at the Five Forks Mine is included in Other long-term liabilities. The Mine reclamation liability related to Marshall Mine, which was assumed in the Marshall Mine Acquisition, is included in Other current liabilities and Other long-term liabilities. The Mine reclamation liabilities represent AROs. Changes in the AROs were as follows:
As of
(in thousands)June 30, 2021December 31, 2020
Asset retirement obligation, beginning of period$21,447 $2,721 
Asset retirement obligation assumed21,328 
Accretion661 543 
Liabilities settled(5,043)(3,565)
Changes due to scope and timing of reclamation(1,942)420 
Asset retirement obligations, end of period15,123 21,447 
Less current portion6,986 9,370 
Asset retirement obligation, long-term$8,137 $12,077 
As discussed in Note 4, asdate of June 30, 2021, the Company reduced the Marshall Mine by $1.9 million based on scope reductions for future reclamation requirements and recordedgrant using a corresponding gain on change in estimateMonte Carlo simulation model. A summary of PSU activity for the three and six months ended June 30, 2021.2022 is presented below:

Supplemental Condensed Consolidated Statements of Operations Information
The following table details the components of Interest expense in the Condensed Consolidated Statements of Operations:
Three Months Ended June 30,Six Months Ended June 30,
(in thousands)2021202020212020
Interest on Senior Term Loan$52 $484 $207 $1,114 
Debt discount and debt issuance costs355 355 946 709 
453A interest28 160 
Other79 95 170 189 
$493 $962 $1,330 $2,172 
21

Advanced Emissions Solutions, Inc. and Subsidiaries
Notes to Condensed Consolidated Financial Statements
(Unaudited)
Note 15 - Impairment
As of June 30, 2020 and as part of its periodic review of the carrying value of long-lived assets, the Company assessed its long-lived assets for potential impairment. In assessing impairment of its APT segment's and certain other long-lived asset groups, the Company considered factors such as the significant decline in both the APT segment's trailing twelve months revenues and current and future years’ forecasted revenues. These factors were largely due to the significant drop in coal-fired power dispatch that began in 2019 amid historically low prices of alternative power generation sources such as natural gas, leading to an increase in natural gas usage as well as other competing energy sources.
As of June 30, 2020, the Company completed an undiscounted cash flow analysis of its APT segment's long-lived assets (the "Asset Group"), which are comprised of its manufacturing plant and related assets and its lignite mine assets, and estimated the undiscounted cash flows from the Asset Group at $54.7 million, which was less than the carrying value of the Asset Group of $58.3 million. Accordingly, the Company completed an assessment of the Asset Group’s fair value and estimated the fair value of the Asset Group at $32.2 million. This resulted in an impairment and write-down of the Asset Group (the "Impairment Charge") of $26.1 million as of June 30, 2020, which is reflected as "Impairment of long-lived assets" in the Condensed Consolidated Statements of Operations for the three and six months ended June 30, 2020.
The following table summarizes the allocation to the Asset Group of the Impairment Charge of $26.1 million recorded as of June 30, 2020:
(in thousands)
Property, plant and equipment, net$18,986 
Intangible assets, net1,445 
Other long-term assets, net5,672 
Total impairment$26,103 
The Company engaged an independent third party to perform the valuation of the Asset Group in order to determine the estimated fair value of the Asset Group. This valuation was based on the use of several established valuation models including an expected future discounted cash flow model based on cash flows expected to be generated by market participants discounted at the risk-free rate of interest. Because of the continued future uncertainty surrounding the level of coal-fired dispatch, the impact of historically low natural gas prices and other estimates impacting the expected future cash flow, it is reasonably possible that the expected future cash flows may change in the near term and may result in the Company recording additional impairment of the Asset Group.
As of June 30, 2021, the Company determined that there was 0 additional impairment of the Asset Group.
UnitsWeighted-Average
Grant Date
Fair Value
Aggregate Intrinsic Value (in thousands)Weighted-Average
Remaining
Contractual
Term (in years)
PSU's outstanding, January 1, 202288,026 $6.65 
Granted60,565 9.59 
Vested / Settled— — 
Forfeited / Canceled— — 
PSU's outstanding, June 30, 2022148,591 $7.85 $697 1.82
Note 1612 - Income Taxes
For the three and six months ended June 30, 20212022 and 2020,2021, the Company's income tax expense and effective tax rates based on forecastedwere:
Three Months Ended June 30,Six Months Ended June 30,
(in thousands, except for rate)2022202120222021
Income tax expense$— $4,943 $— $9,432 
Effective tax rate— %23 %— %24 %
The effective rate for the three and six months ended June 30, 2022 was zero, as the Company incurred pretax income were:
Three Months Ended June 30,Six Months Ended June 30,
(in thousands, except for rate)2021202020212020
Income tax expense$4,943 $103 $9,432 $461 
Effective tax rate23 %%24 %(2)%
loss for this period and the resultant tax benefit was offset by a valuation allowance recorded as of June 30, 2022, as the Company expects to incur pretax loss for the year ended December 31, 2022. The effective rate for the three and six months ended June 30, 2021 was higher thanfrom the federal statutory rate primarily from the impact of estimated state income taxes.
The Company assesses thea valuation allowance recorded against deferred tax assets at each reporting date. The determination of whether a valuation allowance for deferred tax assets is appropriate requires the evaluation of positive and negative evidence that can be objectively verified. Consideration must be given to all sources of taxable income available to realize deferred tax assets, including, as applicable, the future reversal of existing temporary differences, future taxable income forecasts exclusive of the reversal of temporary differences and carryforwards, taxable income in carryback years and tax planning strategies. In estimating income taxes, the Company assesses the relative merits and risks of the appropriate income tax treatment of transactions taking into account statutory, judicial and regulatory guidance.
22

Advanced Emissions Solutions, Inc. and Subsidiaries
Notes to Condensed Consolidated Financial Statements
(Unaudited)
Note 17 - Business Segment Information
Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by a company's chief operating decision maker ("CODM"), or a decision-making group, to allocate resources and assess financial performance. As of June 30, 2021, the Company's CODM was the Company's CEO. The Company's operating and reportable segments are identified by products and services provided.
As of June 30, 2021, the Company has 2 reportable segments: (1) Refined Coal ("RC"); and (2) Advanced Purification Technologies ("APT"). Effective December 31, 2020, and as reported in the 2020 Form 10-K, the Company revised its segments to RC and APT, and amounts for the three and six months ended June 30, 2020 have been recast to conform with the current year presentation.
The business segment measurements provided to and evaluated by the CODM are computed in accordance with the principles listed below:
The accounting policies of the operating segments are the same as those described in the summary of significant accounting policies in the 2020 Form 10-K.
Segment revenues include equity method earnings and losses from the Company's equity method investments.
Segment operating income (loss) includes segment revenues and allocation of certain "Corporate general and administrative expenses," which include Payroll and benefits, General and administrative and Depreciation, amortization, depletion and accretion.
RC segment operating income includes interest expense directly attributable to the RC segment.
As of June 30, 2021 and December 31, 2020, substantially all of the Company's material assets are located in the U.S. and substantially all significant customers are U.S. companies. The following table presents the Company's operating segment results for the three and six months ended June 30, 2021 and 2020:
 Three Months Ended June 30,Six Months Ended June 30,
(in thousands)2021202020212020
Revenues:
Refined Coal:
Earnings in equity method investments$21,437 $8,168 $39,749 $16,441 
License royalties, related party3,657 3,313 7,723 6,359 
25,094 11,481 47,472 22,800 
Advanced Purification Technologies:
Consumables15,976 8,170 33,007 17,387 
15,976 8,170 33,007 17,387 
Total segment reporting revenues41,070 19,651 80,479 40,187 
Adjustments to reconcile to reported revenues:
Earnings in equity method investments(21,437)(8,168)(39,749)(16,441)
Total reported revenues$19,633 $11,483 $40,730 $23,746 
Segment operating income (loss):
Refined Coal$24,905 $10,777 $47,176 $21,637 
Advanced Purification Technologies (1) (2)258 (29,999)273 (37,369)
Total segment operating income (loss)$25,163 $(19,222)$47,449 $(15,732)
(1) Included in APT segment operating income (loss) for the three and six months ended June 30, 2021 and 2020 is $1.8 million and $3.7 million, $1.5 million and $3.8 million, respectively, of depreciation, amortization, depletion and accretion expense on mine and plant long-lived assets and liabilities and $0.1 million, $0.3 million, 0 and 0, respectively, of amortization of Upfront Customer Consideration.
(2) Included in APT segment operating income for the three and six months ended June 30, 2021 is $1.9 million gain related to the change in the Marshall Mine ARO as of June 30, 2021.
23

Advanced Emissions Solutions, Inc. and Subsidiaries
Notes to Condensed Consolidated Financial Statements
(Unaudited)
A reconciliation of reportable segment operating income to consolidated income (loss) before income tax expense is as follows:
 Three Months Ended June 30,Six Months Ended June 30,
(in thousands)2021202020212020
Total reported segment operating income (loss)$25,163 $(19,222)$47,449 $(15,732)
Adjustments to reconcile to income (loss) before income (loss) tax expense attributable to the Company:
Corporate payroll and benefits(826)(1,148)(1,465)(1,857)
Corporate legal and professional fees(1,376)(925)(3,130)(2,674)
Corporate general and administrative(1,049)(1,558)(2,225)(3,157)
Corporate depreciation and amortization(122)(163)(276)(189)
Corporate interest expense, net(348)(824)(998)(1,766)
Other income, net91 129 404 129 
Income (loss) before income tax expense$21,533 $(23,711)$39,759 $(25,246)
Corporate general and administrative expenses include certain costs that benefit the business as a whole but are not directly related to one of the Company's segments. Such costs include, but are not limited to, accounting and human resources staff, information systems costs, legal fees, facility costs, audit fees and corporate governance expenses. 
A reconciliation of reportable segment assets to consolidated assets is as follows:
As of
(in thousands)June 30,
2021
December 31,
2020
Assets:
Refined Coal (1)$7,427 $11,516 
Advanced Purification Technologies (2)81,775 80,877 
Total segment assets89,202 92,393 
All Other and Corporate (3)69,293 54,278 
Consolidated$158,495 $146,671 
(1) Includes $3.6 million and $7.7 million of investments in equity method investees as of June 30, 2021 and December 31, 2020,respectively.
(2) Includes $37.0 million and $34.6 million of long-lived assets, net.
(3) Includes the Company's deferred tax assets of $3.8 million and $10.6 million as of June 30, 2021 and December 31, 2020,respectively.
Note 18 - Fair Value Measurements
Fair value of financial instruments
The carrying amounts of financial instruments, including cash, cash equivalents and restricted cash, accounts receivable, accounts payable and accrued expenses, approximate fair value due to the short maturity of these instruments. The carrying amounts of the Cabot Receivable and debt obligations approximate fair value based on credit terms and market interest rates currently available for similar instruments. Accordingly, these instruments are not presented in the table below. The following table provides the estimated fair values of the remaining financial instruments:
As of June 30, 2021As of December 31, 2020
(in thousands)Carrying ValueFair ValueCarrying ValueFair Value
Financial Instruments:
Highview Investment$552 $552 $552 $552 
Highview Obligation$233 $233 $228 $228 
Concentration of credit risk
The Company's financial instruments that are exposed to concentrations of credit risk consist primarily of cash and cash equivalents. The Company holds cash and cash equivalents at four financial institutions as of June 30, 2021. If an institution
24

Advanced Emissions Solutions, Inc. and Subsidiaries
Notes to Condensed Consolidated Financial Statements
(Unaudited)
was unable to perform its obligations, the Company would be at risk regarding the amount of cash and investments in excess of the Federal Deposit Insurance Corporation limits (currently $250 thousand) that would be returned to the Company.
Assets and Liabilities Measured at Fair Value on a Recurring Basis
As of June 30, 2021 and December 31, 2020, the Company had 0 financial instruments carried and measured at fair value on a recurring basis.
Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis
As disclosed in Note 14, the Company accounts for the Highview Investment as an investment recorded at cost, less impairment, plus or minus observable changes in price for identical or similar investments of the same issuer. Fair value measurements, if any, represent either Level 2 or Level 3 measurements.
Note 19 - Subsequent Events
All significant matters that occurred subsequent to June 30, 2021 are disclosed elsewhere within the notes to the Condensed Consolidated Financial Statements.

2520



Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations
The following discussion and analysis of our financial condition and results of our operations should be read together with the unaudited Condensed Consolidated Financial Statements and notes of Advanced Emissions Solutions, Inc. ("ADES" or the "Company") included elsewhere in Item 1 of Part I ("Item 1") of this Quarterly Report and with the audited consolidated financial statements and the related notes of ADES included in the 20202021 Form 10-K.
The results of operations discussed in this "Management's Discussion and Analysis of Financial Condition and Results of Operations" are those of Advanced Emissions Solutions, Inc. ("ADES")ADES and its consolidated subsidiaries, collectively, the "Company", "we","Company," "we," "our" or "us"."us."
Overview
We operate two segments: RC and APT. Our RC segment is comprised of our equity ownership in Tinuum Group and Tinuum Services, both of which are unconsolidated entities in which we generate substantial earnings. Tinuum Group provides reduction of mercury and NOx emissions at select coal-fired power generators through the production and sale of RC that qualifies for Section 45 tax credits under IRC Section 45. We benefit from Tinuum Group's production and sale of RC, which generates tax credits, as well as its revenue from selling or leasing RC facilities to tax equity investors. We also earn royalties for technologies that we license to Tinuum Group and are used at certain RC facilities to enhance combustion and reduced emissions of NOx and mercury from coal burned to generate electrical power. Tinuum Services operates and maintains the RC facilities under operating and maintenance agreements with Tinuum Group and owners or lessees of the RC facilities. Both Tinuum Group and Tinuum Services expect to commence significantly winding down their operations starting in the third quarter of 2021 due to the expected expiration of the Section 45 tax credit period as of December 31, 2021. During the second quarter of 2021, Tinuum Group ceased operating an RC facility, with the remaining RC facilities expected to cease operations during the second half of 2021. As such, our earnings and distributions from our RC segment will substantially cease as of December 31, 2021.
Our APT segment is primarily operated through a wholly-owned subsidiary, Carbon Solutions. We sell consumable products that utilize AC and chemical basedchemical-based technologies to a broad range of customers, including coal-fired utilities, industrials, water treatment plants, and other diverse markets through thea customer supply agreement defineddescribed below. Our primary products are comprised of AC, which is produced from lignite coal.a variety of carbonaceous raw materials. Our AC products include both powdered activated carbon ("PAC") and granular activated carbon ("GAC"). Our proprietary technologies and associated product offerings provide purification solutions to enable our customers to reduce certain contaminants and pollutants to meet the challenges of existing and potential future regulations. Additionally, we own an associated lignite mine thatwhich supplies the primary raw material for the manufacturing of our products.
Through December 31, 2021, we generated substantial earnings from our equity investments in Tinuum Group and Tinuum Services. Both entities ceased operations effective December 31, 2021 as a result of the expiration of a tax credit program under the Section 45 Tax Credit Program. Tinuum Group provided reduction of mercury and nitrogen oxide ("NOx") emissions at select coal-fired power generators through the production and sale of refined coal ("RC") which qualified for tax credits under the Section 45 Tax Credit Program ("Section 45 tax credits"). We also earned royalties for technologies which were licensed to Tinuum Group and used at certain RC facilities to enhance combustion and reduced emissions of NOx and mercury from coal burned to generate electrical power. Tinuum Services operated and maintained the RC facilities under operating and maintenance agreements with Tinuum Group and owners or lessees of the RC facilities. Presently, both Tinuum Group and Tinuum Services continue to wind-down their operations, and we expect to receive final cash distributions from these entities during 2022.
Given the wind-down of Tinuum Group and Tinuum Services and the impact on our financial statements, we determined the historical RC segment no longer met the qualitative or quantitative criteria to be considered a reporting segment under U.S. GAAP. As a result, as well as the method in which the chief operating decision maker allocates resources, beginning January 1, 2022, we determined that we had one reportable segment, and therefore have removed segment disclosures for this Quarterly Report.
Drivers of Demand and Key Factors Affecting Profitability
Drivers of demand and key factors affecting our profitability differ by segment. In the RC segment, demand has been driven primarily from investors who purchase or lease RC facilities that qualify under the Section 45 tax credit period, which is expected to expire no later than December 31, 2021. Operating results in RC are affected by: (1) the ability to lease or operate RC facilities; (2) lease renegotiation or termination; and (3) changes in tonnagesales of RC due to changing coal-fired dispatch and electricity power generation sources. As discussed above, earnings and distributions from our RC segment will substantially cease as of December 31, 2021 as Tinuum ceases operations at its RC facilities.
In the APT segment, demand is driven primarily by consumables-based solutions for coal-fired power generation, and other industrials, municipal water customers and since September 30, 2020, demand from Cabot's customersother diverse markets served by Norit, whom we supply through the Supply Agreement discussed below. OperatingOur operating results in the APT segment has beenare influenced by: (1) changes in our sales volumes; (2) changes in price and product mix; and (3) changes in coal-fired dispatch and electricity power generation sources.
On April 22, 2021, there was an incident at our Red River Plantsources and (4) changes in Louisiana ("Plant Incident"), which involved an isolated fire in one ofdemand for contaminant removal within water treatment facilities. During the Red River Plant's coal handling systems. As a result, the Red River Plant was shut down for nine days for repair. As ofthree months ended June 30, 2021, the cash flow impact associated with the Plant Incident was $0.2 million2022, we have continued to see increases in demand for repairs and $0.7 million in purchasedour AC products. As such, we continue to purchase inventory to supplement lost production.customer demands in excess of our production capacity and to achieve our target inventory levels.
Customer Supply Agreement
On September 30, 2020, we and CabotNorit entered into the Supply Agreement pursuant to which we agreed to sell and deliver to Cabot,Norit, and CabotNorit agreed to purchase and accept from us, Furnace Products. In addition toUnder the sale by us and purchase by Cabot of Furnace Products, we and Cabot have agreed to additional terms whereby Cabot will reimburseSupply Agreement, Norit reimburses us for certain capital expenditures incurred by us that are necessary to manufacture the Furnace Products. Reimbursements will be in the formare comprised of
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revenues earned from capital expenditures incurred that will benefit both us and CabotNorit (referred to as "Shared Capital") and revenues earned from capital expenditures incurred that will benefit CabotNorit exclusively (referred to as "Specific Capital").
For 2021, we have generated material incremental volume and lowered unit operating costs at In the Red River Plant dueevent that Norit ceases to make purchases under the Supply Agreement, whichNorit is obligated to pay the balance of any outstanding payments for Specific Capital.
On February 25, 2022, we received $10.6 million in turn has increased our gross margins. Further,cash from Norit (the "Norit Payment") as a result of a change in control provision in the Supply Agreement has further expanded our AC products(the "Change in Control"), which occurred as a result of the sale of Norit by its parent, Cabot Corporation. Under the Change in Control, we received from Norit full payment of all amounts outstanding under the Reclamation Reimbursement (defined below), payment of all unbilled amounts related to diverse end-marketsSpecific Capital for expenditures
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incurred through February 28, 2022 and payment of $0.8 million related to additional Reclamation Costs (the "Norit Reclamation Costs"). Under the Reclamation Contract, we were obligated to remit payment for the Norit Reclamation Costs to the third-party operator of Marshall Mine, and such payment was remitted in March 2022. The Change in Control did not impact any other provisions of the Supply Agreement.
As of February 25, 2022, the carrying value of the Reclamation Reimbursement was $9.0 million and was reflective of the principal balance, adjusted for accretion of interest and payments made to date. Under the Change in Control, we received $8.5 million in cash for full payment of the outstanding Reclamation Reimbursement. We concluded that are outsidethe cash proceeds received represented an early payment of coal-fired power generation.a receivable based on a change in contractual terms and accounted for the difference between the cash proceeds received and the carrying amount of the Reclamation Reimbursement of $0.5 million as a loss, which is included within the "Other Income (Expense)" line item in the Condensed Consolidated Statement of Operation for the six months ended June 30, 2022.
Acquisition of Marshall Mine
Concurrently with the execution of the Supply Agreement, on September 30, 2020, we entered intocompleted the Mine Purchase Agreement with Cabot to purchase 100% of the membership interests in Marshall Mine LLC (the "Marshall Mine Acquisition")Acquisition for a nominal cash purchase price. Marshall Mine LLC ownsis a lignite mine located outside of Marshall, Texas (the "Marshall Mine").Texas. We independently determined to immediately commence activities to shutter the Marshall Mine and have and will continue to incur the associatedcommenced full reclamation costs.
In conjunction with the execution of the Supply Agreement and the Mine Purchase Agreement, on September 30, 2020, we entered intoactivities under the Reclamation Contract with a third party that provides a capped cost, subjectContract. As of June 30, 2022, we have materially completed the dirt work (i.e., contouring, backfilling, etc.) related to certain contingencies, in the amount of approximately $19.7 million plus an obligation to pay certain direct costs estimated to be $3.6 million (collectively, the "Reclamation Costs") over the estimated reclamation period of 10 years. We are accounting for this obligation as an asset retirement obligation under U.S. GAAP ("ARO"). Reclamation Contract.
Under the terms of the Supply Agreement, Cabot isNorit was obligated to reimburse us for $10.2 million, inclusive of Reclamation Costsinterest, over a 13-year term (the "Reclamation Reimbursements"Reimbursement"), which are payable semi-annually over 13 years for a portion of the Reclamation Costs. As discussed above, on February 25, 2022 as part of the Change in Control, Norit fully paid the outstanding amount owed under the Reclamation Reimbursement and inclusive of interest. Forhas no further liability related to the three and six months ended June 30, 2021, we settled $2.7 million and $5.0 million in of Reclamation Costs, respectively.Marshall Mine.
As the owner of the Marshall Mine, we were required to post a surety bondthe MM Surety Bond with a third partyregulatory commission to ensure performance of our reclamation activities in the amount of $30.0 million under the Surety Agreement.million. On June 7, 2021, the third partyregulatory commission agreed to reduce the MM Surety Bond amount to $16.6 million. As of June 30, 2021,required by our surety bond provider for both the Marshall Mine and Five Forks Mine, we were required to postposted collateral of $10.0 million as of June 30, 2022 in the form of restricted cashcash.
Results of Operations
For the three and six months ended June 30, 2022, we recognized net loss of $0.3 million and $3.4 million, respectively, compared to net income of $16.6 million and $30.3 million for the three and six months ended June 30, 2021, respectively. The most significant factor impacting results period over period was the decrease in equity earnings from Tinuum Group as the ability to generate Section 45 tax credits, the driver for Tinuum Group's operations, ceased as of December 31, 2021.
The following sections provide additional information regarding these comparable periods. For comparability purposes, the following tables set forth our results of operations for the periods presented in the Condensed Consolidated Financial Statements included in Item 1 of this Quarterly Report. The current year period to prior year period comparisons of financial results may not be indicative of financial results to be achieved in future periods.
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Comparison of the Three Months Ended June 30, 2022 and 2021
Total Revenue and Cost of Revenue
A summary of the components of our revenues and cost of revenue for the three months ended June 30, 2022 and 2021 is as follows:
Three Months Ended June 30,Change
(in thousands, except percentages)20222021($)(%)
Revenues:
Consumables$24,739 $17,408 $7,331 42 %
License royalties, related party— 3,657 (3,657)(100)%
Total revenues$24,739 $21,065 $3,674 17 %
Operating expenses:
Consumables cost of revenue, exclusive of depreciation and amortization$19,910 $14,732 $5,178 35 %
Consumables and consumables cost of revenue
For the three months ended June 30, 2022, consumables revenues increased from the comparable quarter in 2021 primarily driven by higher product volumes, which comprised $4.6 million of the total change. Product volumes were higher among power generation customers primarily due to higher natural gas prices and higher demand for electricity compared to the same quarter in 2021, which contributed to increased utilization of coal-fired generation and increased demand for our products. Total consumables revenues also increased due to favorable pricing mix of our products by approximately $2.0 million.
Consumables gross margin, exclusive of depreciation and amortization, increased for the three months ended June 30, 2022 compared to the corresponding quarter in 2021 primarily due to the higher product volumes, which resulted in lower fixed costs per pound, as well as increases in the prices of our products. Offsetting these improvements for the three months ended June 30, 2022, consumables gross margin was negatively impacted by higher prices for key raw materials, transportation, including fuel, and other operational costs to produce and deliver our products. Further negatively impacting consumables gross margin was the requirement to purchase inventory due to increased demand for our products and high operating utilization of the Red River Plant. We will continue to need to maintain targeted inventory levels and therefore we expect to continue to purchase inventory at least through the remainder of 2022 as a result of ongoing increased demand for our products and continued high operating utilization at the Red River Plant. We will continue to evaluate the need for additional inventory purchases in subsequent years. In 2023, we expect to complete a turnaround at the Red River Plant and, as a result, we anticipate that our consumables gross margin will be negatively impacted.
We expect that consumables revenues and gross margin will continue to be positively impacted by our product price increase announced in the second quarter of 2022 and our efforts to move our product mix to higher margin products. We anticipate that the product price increases will help offset both the inflation we are experiencing in many of our operating costs and the higher operating costs from purchasing inventory. We also expect that changes in product mix due to the loss of certain power generation customers who are permanently shuttering certain operations as part of scheduled closures will also continue to improve our consumables gross margin.
Consumables revenues continues to be affected by electricity demand driven by seasonal weather and related power generation needs, as well as competitor prices related to alternative power generation sources such as natural gas and renewables.
License royalties, related party
As discussed above, Tinuum Group ceased operations as of December 31, 2021 and as a result for the three months ended June 30, 2022, we did not recognize any revenues from license royalties from Tinuum Group.
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Other Operating Expenses
A summary of the components of our operating expenses for the three months ended June 30, 2022 and 2021, exclusive of cost of revenue items (presented above), is as follows:
Three Months Ended June 30,Change
(in thousands, except percentages)20222021($)(%)
Operating expenses:
Payroll and benefits$2,519 $2,908 $(389)(13)%
Legal and professional fees1,555 1,431 124 %
General and administrative1,869 1,593 276 17 %
Depreciation, amortization, depletion and accretion1,588 1,904 (316)(17)%
Loss (gain) on change in estimate, asset retirement obligation34 (1,942)1,976 (102)%
$7,565 $5,894 $1,671 28 %
Payroll and benefits
Payroll and benefits expenses, which represent costs related to selling, general and administrative personnel, decreased for the three months ended June 30, 2022 compared to the corresponding quarter in 2021 primarily due to a decrease in payroll-related expenses of employees as our headcount decreased quarter over quarter.
Legal and professional fees
Legal and professional fees increased for the three months ended June 30, 2022 compared to the corresponding quarter in 2021 as a result of an increase in costs incurred related to our strategic alternatives review process, and was comprised mostly of consulting fees.
General and administrative
General and administrative expenses increased for the three months ended June 30, 2022 compared to the corresponding quarter in 2021 primarily due to an increase in rent and occupancy expense of $0.2 million and general and administrative expenses, including travel, of $0.1 million.
Depreciation, amortization, depletion and accretion
Depreciation and amortization expense decreased for the three months ended June 30, 2022 compared to the corresponding quarter in 2021 primarily due to higher production volumes compared to sales volumes for the three months ended June 30, 2022, resulting in $0.2 million less absorption of depreciation in inventory. Further driving the decrease was a decrease in accretion expense of $0.2 million related to the Marshall Mine ARO.
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Loss (gain) on change in estimate, asset retirement obligation
As of June 30, 2022, we revised our estimate of future obligations due underowed for reclamation of the Reclamation Contract.Marshall Mine primarily based on a change in the timing of estimated payments for future reclamation requirements. As a result, we increased the Marshall Mine ARO by $34.0 thousand as of June 30, 2022 and recognized a corresponding loss on change in estimate in the Condensed Consolidated Statements of Operations for the three months ended June 30, 2022.
As of June 30, 2021, we revised our estimate of future obligations owed for reclamation of the Marshall Mine primarily based on scope reductions related to future reclamation requirements. As a result, we reduced the Marshall Mine ARO by $1.9 million as of June 30, 2021 and a recordedrecognized a corresponding gain on change in estimate in the Condensed Consolidated Statements of Operations for the three and six months ended June 30, 2021.
Impact of COVID-19Other Income (Expense), net
In March 2020, the World Health Organization declared COVID-19 a global pandemic. We are designated by CISAA summary of the Departmentcomponents of Homeland Security as a critical infrastructure supplier to the energy sector. Our operations have been deemed essential and, therefore, our facilities remained open and our employees employed. We follow the COVID-19 guidelines from the Centers for Disease Control concerning the health and safety of our personnel. The measures we have taken have resulted in an increase in our personnel costs, operational inefficiencies and the incurrence of incremental costs to allow manufacturing operations to continue.
The duration and scope of the COVID-19 pandemic continues to be uncertain. Many parts of the world are still experiencing high infection rates and the level and timing of COVID-19 vaccine distribution will impact the economic recovery and growth. We cannot predict the long-term effects on our business, including our financial position or results of operations, if governmental restrictions or other such directives continue for a prolonged period of time and cause a material negative change in power generation demand, materially disrupt our supply chain, substantially increase our operating costs or limit our ability to serve existing customers and seek new customers.
In response to the COVID-19 outbreak, in March 2020, the federal government passed the CARES Act. The CARES Act provided, among other things, the deferral of payroll tax payments for all payroll taxes incurred through December 31, 2020 and created the Paycheck Protection Program ("PPP")income (expense), which is sponsored and administered by the SBA. In June 2020, the Paycheck Protection Program Flexibility Act of 2020 (the "PPPFA") was signed into law and established the payment dates in the event that amounts borrowed under the PPP are not forgiven. See further discussion below of the loan made to us under the PPP under the section "PPP Loan" under this Item.
We elected to defer payments of payroll taxesnet for the periods allowed under the CARES Actthree months ended June 30, 2022 and will repay 50% by2021 is as follows:
Three Months Ended June 30,Change
(in thousands, except percentages)20222021($)(%)
Other income (expense):
Earnings from equity method investments$2,389 $21,437 $(19,048)(89)%
Interest expense(90)(493)403 (82)%
Other111 150 (39)(26)%
Total other income$2,410 $21,094 $(18,684)(89)%
Earnings from equity method investments
As discussed above, both Tinuum Group and Tinuum Services ceased operations as of December 31, 2021 and 50% by December 31, 2022. As ofas a result for the three months ended June 30, 2021, total payroll tax payments deferred under2022, we recognized significantly lower earnings from Tinuum Group and Tinuum Services. The following table details the CARES Act were $0.4 million.components of our respective equity method investments included in the Earnings from equity method investments line item in the Condensed Consolidated Statements of Operations:
Our customers may also be impacted by COVID-19 pandemic as the utilization of energy has changed. We cannot predict the long-term impact on our customers and the subsequent impact on our business.
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Results of Operations
Three Months Ended June 30,
(in thousands)20222021
Earnings from Tinuum Group$2,125 $19,125 
Earnings from Tinuum Services264 2,312 
Earnings from equity method investments$2,389 $21,437 
For the three and sixmonths ended June 30, 2022, we recognized $2.1 million in equity earnings from Tinuum Group compared to our proportionate share of Tinuum Group's net loss of $0.7 million for the quarter. For the three months ended June 30, 2021, we recognized $19.1 million in equity earnings from Tinuum Group compared to our proportionate share of Tinuum Group's net income of $16.6 million and $30.3 million, respectively, compared to net loss of $23.8 million and $25.7$12.1 million for the threequarter. For both of these quarters, the difference between our pro-rata share of Tinuum Group's net (loss) income and sixour earnings from the Tinuum Group equity method investment as reported on the Condensed Consolidated Statements of Operations is the result of cumulative distributions received from Tinuum Group being in excess of the carrying value of the investment, and therefore we recognize such excess distributions as equity method earnings in the period the distributions occur. For the remainder of 2022, we expect to recognize such excess contributions as equity method earnings in the period the distributions occur, limited to the carrying value of the Tinuum Group equity investment.
For the three months ended June 30, 2020.
2022, we recognized $0.3 million in equity earnings from Tinuum Services compared to our proportionate share of Tinuum Services' net income of $0.1 million for this quarter. The following sections provide additional information regarding these comparable periods.difference between our pro-rata share of Tinuum Services' net income and our earnings from the Tinuum Services equity method investment as reported on the Condensed Consolidated Statements of Operations is the result of cumulative distributions received from Tinuum Services being in excess of the carrying value of the investment, and therefore we recognize such excess distributions as equity method earnings in the period the distributions occur. For comparability purposes, the following tables set forththree months ended June 30, 2021, we recognized $2.3 million in equity earnings from Tinuum Services, which was our resultsproportionate share of operationsTinuum Services' net income of $4.6 million for the periods presentedquarter.
Additional information related to equity method investments is included in Note 9 to the Condensed Consolidated Financial Statements included in Item 1 of this Quarterly Report. The period-to-period comparison
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Interest expense
For the three months ended June 30, 2022, interest expense decreased $0.4 million compared to the three months ended June 30, 2021 primarily due to the pay-off of financial results maya senior term loan as of June 1, 2021.
Income tax expense
For the three months ended June 30, 2022, we recorded no income tax expense or benefit compared to income tax expense of $4.9 million for the three months ended June 30, 2021 primarily due to pretax loss for the three months ended June 30, 2022 of $0.3 million compared to pretax income for the three months ended June 30, 2021 of $21.5 million. We did not be indicativerecognize a tax benefit for the three months ended June 30, 2022 related to the pretax loss for this period, as we recorded a valuation allowance as of financial results to be achieved in future periods.June 30, 2022 primarily based on our forecast of pretax loss for the year ended December 31, 2022.
Comparison of the ThreeSix Months Ended June 30, 20212022 and 20202021
Total Revenue and Cost of Revenue
A summary of the components of our revenues and cost of revenue for the threesix months ended June 30, 20212022 and 20202021 is as follows:
Three Months Ended June 30,ChangeSix Months Ended June 30,Change
(in thousands, except percentages)(in thousands, except percentages)20212020($)(%)(in thousands, except percentages)20222021($)(%)
Revenues:Revenues:Revenues:
ConsumablesConsumables$15,976 $8,170 $7,806 96 %Consumables$51,141 $35,949 $15,192 42 %
License royalties, related partyLicense royalties, related party3,657 3,313 344 10 %License royalties, related party— 7,723 (7,723)(100)%
Total revenuesTotal revenues$19,633 $11,483 $8,150 71 %Total revenues$51,141 $43,672 $7,469 17 %
Operating expenses:Operating expenses:Operating expenses:
Consumables cost of revenue, exclusive of depreciation and amortizationConsumables cost of revenue, exclusive of depreciation and amortization$13,300 $7,416 $5,884 79 %Consumables cost of revenue, exclusive of depreciation and amortization$41,417 $28,716 $12,701 44 %
Consumables and consumables cost of revenue
For the threesix months ended June 30, 2021,2022, consumables revenues increased from the comparable quarterperiod in 20202021 primarily driven by higher product volumes, most significantly from products sold under the Supply Agreement, which comprised of $7.4approximately $9.5 million of the total revenues, and provided favorable pricing mix of approximately $0.6 million. Negatively impacting revenues quarter over quarter was less favorable product mix of approximately $0.2 million. For the three months ended June 30, 2021, therechange. Product volumes in 2022 were higher than average temperatures as well as an increase in power generation primarily due to higher natural gas prices compared to the prior quarter, both ofyear period, which caused an increase incontributed to increased demand for our products. Total consumables revenues also increased due to favorable selling prices of our products by approximately $4.8 million.
OurConsumables gross margin, exclusive of depreciation and amortization, increaseddecreased for the threesix months ended June 30, 20212022 compared to the corresponding quarterperiod in 2020 primarily due2021. For the six months ended June 30, 2022, our consumables gross margin was negatively impacted by higher prices for key raw materials, transportation, including fuel, and other operational costs to produce and deliver our products. Further negatively impacting consumables gross margin was an increase during the six months ended June 30, 2022 compared to the prior year period in the amount of purchased inventory to meet customer demand for our products and supplement the higher operating utilization of the Red River Plant. Offsetting these negative impacts were higher product volumes, which resulted in lower fixed costcosts per pound, compared to the corresponding quarter. Offsetting higher gross margin from higher product volumes for the three months ended June 30, 2021, was gross margin negatively impacted by routine scheduled maintenance outages planned during the second quarter of 2021 as well as additional costs associated withincreases in the Plant Incident. The impactprices of our products which were mostly in place as of the Plant Incident is expected to continue for the remainderbeginning of 2021 as we continue to purchase inventory due to lost production and increased demand for our products.
We expect Consumable revenues and gross margin to be positively impacted by our price increase announced in the second quarter of 2021 along with our efforts to improve customer and product mix. The price increase will also help offset the increase in operating costs.
Consumables revenues continues to be affected by electricity demand driven by seasonal weather and related power generation needs, as well as competitor prices related to alternative power generation sources such as natural gas. According to data provided by the U.S. Energy Information Administration ("EIA"), for the three months ended June 30, 2021, power generation from coal-fired power dispatch increased approximately 34% compared to the corresponding quarter in 2020.
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April 2022.
License royalties, related party
ForAs discussed above, Tinuum Group ceased operations as of December 31, 2021 and as a result, for the threesix months ended June 30, 2021 and 2020, there were 12.8 million tons and 9.2 million tons, respectively, of RC produced using M-45TM and M-45-PCTM technologies ("M-45 Technology"), which Tinuum Group licenses from us ("M-45 License"). M-45 License royalties increased for the three months ended June 30, 2021 primarily from higher tonnage compared to the three months ended June 30, 2020. This was primarily a result of an increase quarter over quarter in RC facilities that use the M-45 Technology. While tonnage increased quarter over quarter, there was a reduction in the royalty rate per ton primarily attributable to a majority of the RC contracts having fixed lease payments such that increased tonnages2022, we did not result in increased earnings. Bothrecognize any revenues from license royalties from Tinuum Group and Tinuum Services expect to commence significantly winding down their operations starting in the third quarter of 2021 due to the expected expiration of the Section 45 tax credit period as of December 31, 2021. As such, we do not expect to continue earning M-45 License royalties after December 31, 2021.Group.
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Additional information related to revenue concentrations and contributions by class and reportable segment can be found within the Business Segments discussion and in Note 17 to the Condensed Consolidated Financial Statements.
Other Operating Expenses
A summary of the components of our operating expenses, for the three months ended June 30, 2021 and 2020, exclusive of cost of revenue items (presented above), for the six months ended June 30, 2022 and 2021 is as follows:
Three Months Ended June 30,Change
(in thousands, except percentages)20212020($)(%)
Operating expenses:
Payroll and benefits$2,908 $3,812 $(904)(24)%
Legal and professional fees1,431 1,022 409 40 %
General and administrative1,593 2,462 (869)(35)%
Depreciation, amortization, depletion and accretion1,904 1,733 171 10 %
Impairment of long-lived assets— 26,103 (26,103)(100)%
Gain on change in estimate, asset retirement obligation(1,942)— (1,942)*
$5,894 $35,132 $(29,238)(83)%
* Calculation not meaningful
Six Months Ended June 30,Change
(in thousands, except percentages)20222021($)(%)
Operating expenses:
Payroll and benefits$5,145 $5,377 $(232)(4)%
Legal and professional fees3,727 3,234 493 15 %
General and administrative3,795 3,508 287 %
Depreciation, amortization, depletion and accretion3,094 4,010 (916)(23)%
Loss (gain) on change in estimate, asset retirement obligation34 (1,942)1,976 (102)%
$15,795 $14,187 $1,608 11 %
Payroll and benefits
Payroll and benefits expenses which represent costs related to selling, general and administrative personnel, decreased for the threesix months ended June 30, 20212022 compared to the corresponding quartersame period in 20202021 primarily due to a decrease of $0.6 million due to reduction in payroll-related expenses of executives and changes in personnel mix.headcount. Offsetting these decreases was an increase in our headcount and expense of $0.4 million related to the agreements with our executive officers and certain other key employees ("Retention Agreements"). See below for additional information on theAmended Retention Agreements.
Legal and professional fees
Legal and professional fees increased for the threesix months ended June 30, 20212022 compared to the corresponding quartersame period in 20202021 primarily as a result of costs an increase in costs incurred related to our strategic alternatives includingreview process, and was comprised mostly of consulting and legal fees of $0.4$0.5 million.
General and administrative
General and administrative expenses decreasedincreased for the threesix months ended June 30, 20212022 compared to the corresponding quartersame period in 20202021 primarily due to a reductionan increase in rent and occupancy expense of product$0.1 million, research and development costsexpense of $0.4$0.1 million and a reduction in costs incurred due totravel of $0.1 million.
Depreciation, amortization, depletion and accretion
Depreciation and amortization expense decreased for the sequestration of certain of our employees at our manufacturing plant in Louisiana of approximately $0.3 million during the threesix months ended June 30, 2020. Offsetting these decreases were increases in rent and occupancy expenses of approximately $0.1 million related to property taxes.
Depreciation, amortization, depletion and accretion
Depreciation and amortization expense increased for the three months ended June 30, 20212022 compared to the corresponding quartersame period in 20202021 primarily due to higher production volumes during the threesix months ended June 30, 2021,2022, resulting in $0.4$0.6 million moreless absorption of depreciation in inventory. Further driving the increasedecrease was a decrease in accretion expense of $0.3 million related to the reduction of the Marshall Mine ARO. Offsetting this increase wasARO compared to prior year period and a reductiondecrease in depreciation and amortization expense of $0.6$0.2 million related to patents. Offsetting the Impairment Charge recordednet decrease period over period was an increase in the second quarterdepreciation expense of 2020 that reduced the carrying value of$0.1 million related to an increase in our property, plant and equipment and intangibles.as of June 30, 2022 compared to June 30, 2021.
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Impairment of long-lived assetsLoss (gain) on change in estimate, asset retirement obligation
As previously discussed, as of June 30, 2020, we recorded a loss on change in estimate of $34.0 thousand primarily based on a change in the Impairment Chargetiming of $26.1 million,estimated payments for future reclamation requirements of the Marshall Mine, which is included in the Condensed Consolidated Statements of Operations for the threesix months ended June 30, 2020.
Gain on change in estimate, asset retirement obligation2022.
As previously discussed, we recorded a gain on change in estimate of $1.9 million related to a reduction in scope of our future reclamation efforts of the Marshall Mine, which is included in the Condensed Consolidated Statements of Operations for the threesix months ended June 30, 2021.
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Other Income (Expense), net
A summary of the components of our other income (expense), net for the threesix months ended June 30, 20212022 and 20202021 is as follows:
Three Months Ended June 30,ChangeSix Months Ended June 30,Change
(in thousands, except percentages)(in thousands, except percentages)20212020($)(%)(in thousands, except percentages)20222021($)(%)
Other income (expense):Other income (expense):Other income (expense):
Earnings from equity method investmentsEarnings from equity method investments$21,437 $8,168 $13,269 162 %Earnings from equity method investments$3,222 $39,749 $(36,527)(92)%
Interest expenseInterest expense(493)(962)469 (49)%Interest expense(176)(1,330)1,154 (87)%
OtherOther150 148 %Other(334)571 (905)(158)%
Total other incomeTotal other income$21,094 $7,354 $13,740 187 %Total other income$2,712 $38,990 $(36,278)(93)%

Earnings from equity method investments
The following table details the components of our respective equity method investments included inwithin the Earnings from equity method investments line item inon the Condensed Consolidated Statements of Operations:
Three Months Ended June 30,
(in thousands)20212020
Earnings from Tinuum Group$19,125 $6,764 
Earnings from Tinuum Services2,312 1,404 
Earnings from other— — 
Earnings from equity method investments$21,437 $8,168 
Earnings from equity method investments, and changes related thereto, are impacted by our significant equity method investees: Tinuum Group and Tinuum Services.
Six Months Ended June 30,
(in thousands)20222021
Earnings from Tinuum Group$3,137 $35,487 
Earnings from Tinuum Services84 4,262 
Earnings from other— 
Earnings from equity method investments$3,222 $39,749 
For the threesix months ended June 30, 2022, we recognized $3.1 million in equity earnings from Tinuum Group compared to our proportionate share of Tinuum Group's net loss of $1.5 million for the period. For the six months ended June 30, 2021, we recognized $19.1$35.5 million in equity earnings from Tinuum Group compared to our proportionate share of Tinuum Group's net income of $12.1$22.9 million for the quarter. Theperiod. For both of these periods, the difference between our pro-rata share of Tinuum Group's net (loss) income and our earnings from Tinuum Group equity method investment as reported on the Condensed Consolidated Statements of Operations is the result of cumulative distributions received from Tinuum Group being in excess of the carrying value of the investment, and therefore we recognize such excess distributions as equity method earnings in the period the distributions occur.
For the threesix months ended June 30, 2020,2022, we recognized $6.8$0.1 million in equity earnings from Tinuum Group, which was equal to our proportionate share of Tinuum Group's net income for the respective quarter.
See further discussion of quarter over quarter changes in Earnings from Equity Investments in "Business Segments" under this Item. Additional information related to equity method investments is included in Note 6 to the Condensed Consolidated Financial Statements included in Part I - Item 1 of this Report.
For 2021, we expect to recognize such excess contributions as equity method earnings in the period the distributions occur, limited to the carrying value of the Tinuum Group equity investment.
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Interest expense
For the three months ended June 30, 2021, interest expense decreased $0.5 million compared to the three months ended June 30, 2020 primarily due to a reduction in interest expense related to the Senior Term Loan, as the principal balance was reduced from payments of $28.0 million made during the period from June 30, 2020 to June 30, 2021. Further, the Senior Term Loan was paid-off in its entirety as of June 1, 2021. The remaining decrease in interest expense related to reductions in finance lease liabilities and the deferred tax liability associated with Internal Revenue Code section 453A ("Section 453A") during the period from June 30, 2020 to June 30, 2021. Section 453A requires taxpayers to pay an interest charge ("453A interest") on the portion of the tax liability that is deferred under the installment method for tax purposes. 
Income tax expense
For the three months ended June 30, 2021, we recorded income tax expense of $4.9 million compared to income tax expense of $0.1 million for the three months ended June 30, 2020. The income tax expense recorded for the three months ended June 30, 2021 was comprised of estimated federal income tax expense of $5.0 million and estimated state income tax benefit of $0.1 million. The income tax expense recorded for the three months ended June 30, 2020 was comprised of estimated federal income tax expense of $0.3 million and estimated state income tax benefit of $0.2 million.
The increase in income tax expense quarter over quarter was primarily due to pretax income for the three months ended June 30, 2021 of $21.5 million compared to a pretax loss for the three months ended June 30, 2020 of $23.7 million.
Comparison of the Six Months Ended June 30, 2021 and 2020
Total Revenue and Cost of Revenue
A summary of the components of our revenues and cost of revenue for the six months ended June 30, 2021 and 2020 is as follows:
Six Months Ended June 30,Change
(in thousands, except percentages)20212020($)(%)
Revenues:
Consumables$33,007 $17,387 $15,620 90 %
License royalties, related party7,723 6,359 1,364 21 %
Total revenues$40,730 $23,746 $16,984 72 %
Operating expenses:
Consumables cost of revenue, exclusive of depreciation and amortization$25,774 $18,907 $6,867 36 %
Consumables and consumables cost of revenue
For the six months ended June 30, 2021, consumables revenues increased from the comparable period in 2020 primarily driven by higher product volumes, most significantly from products sold under the Supply Agreement, which comprised of approximately $14.5 million of total revenue and favorable price impact of approximately $2.8 million. Negatively impacting consumables revenues period over period was less favorable product mix, which impacted consumables revenue by approximately $1.7 million.
Volumes were positively impacted by seasonal weather and an increase of 4.4% in overall power generation, including an increase in power generation from coal-fired power dispatch, which according to data provided by the EIA, increased approximately 36% for the six months ended June 30, 2021 compared to the corresponding period in 2020.
Our gross margin, exclusive of depreciation and amortization, increased for the six months ended June 30, 2021 compared to the corresponding period in 2020 primarily due to the higher product volumes, which resulted in lower fixed cost per pound compared to the prior year. Offsetting higher gross margin from higher product volumes for the six months ended June 30, 2021, was gross margin negatively impacted by additional costs associated with the Plant Incident.
Consumables cost of revenue was negatively impacted for the six months ended June 30, 2020 due to safety actions taken by us to provide for continued operation of our manufacturing facilities in response to COVID-19.
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License royalties, related party
For the six months ended June 30, 2021 and 2020, there were 27.5 million tons and 21.1 million tons, respectively, of RC produced using the M-45 Technology under the M-45 License. While tonnage increased period over period, there was a reduction in the royalty rate per ton primarily attributable to a majority of the RC contracts having fixed lease payments such that increased tonnages did not result in increased earnings.
Additional information related to revenue concentrations and contributions by class and reportable segment can be found within the segment discussion below and in Note 17 to the Condensed Consolidated Financial Statements.
Other Operating Expenses
A summary of the components of our operating expenses, exclusive of cost of revenue items (presented above), for the six months ended June 30, 2021 and 2020 is as follows:
Six Months Ended June 30,Change
(in thousands, except percentages)20212020($)(%)
Operating expenses:
Payroll and benefits$5,377 $6,554 $(1,177)(18)%
Legal and professional fees3,234 3,065 169 %
General and administrative3,508 4,793 (1,285)(27)%
Depreciation, amortization, depletion and accretion4,010 4,030 (20)— %
Impairment of long-lived assets— 26,103 (26,103)(100)%
Gain on change in estimate, asset retirement obligation(1,942)— (1,942)*
$14,187 $44,545 $(30,358)(68)%
* Calculation not meaningful
Payroll and benefits
Payroll and benefits expenses decreased for the six months ended June 30, 2021 compared to the same period in 2020 primarily due to a decrease in payroll-related expenses of executive and changes in personnel mix. Offsetting these increases were an increase in our headcount and expense related to the Retention Agreements.
Legal and professional fees
Legal and professional fees increased for the six months ended June 30, 2021 compared to the same period in 2020 primarily due to costs incurred related to our corporate incentives and strategic alternatives, including consulting and legal fees of $0.5 million. Offsetting this increase was a reduction in outsourced IT costs specific to the completion of the integration of Carbon Solutions of $0.4 million.
General and administrative
General and administrative expenses decreased for the six months ended June 30, 2021 compared to the same period in 2020 primarily due to a decrease in product development expenses of approximately $0.8 million related to the Supply Agreement, a decrease in costs incurred due to the sequestration of certain of our employees at the Red River Plant of approximately $0.3 million and reductions in general and administrative expenses, including recruiting and licenses and fees. Offsetting these decreases was an increase in rent and occupancy expenses of approximately $0.2 million related to property taxes.
Depreciation and amortization
Depreciation and amortization expense remained relatively flat for the six months ended June 30, 2021 compared to the same period in 2020 due to higher production volumes during the six months ended June 30, 2021, resulting in $0.4 million more absorption of depreciation in inventory. Further driving the increase was accretion expense of $0.6 million related to the Marshall Mine ARO. Offsetting these increases was a reduction in depreciation and amortization expense of $1.0 million related to the Impairment Charge recorded in the second quarter of 2020 that reduced the carrying value of our property, plant, equipment and intangibles.
Impairment of long-lived assets
As previously discussed, as of June 30, 2020, we recorded the Impairment Charge of $26.1 million, which is included in the Condensed Consolidated Statements of Operations for the six months ended June 30, 2020.
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Gain on change in estimate, asset retirement obligation
As previously discussed, we recorded a gain on change in estimate of $1.9 million related to a reduction in scope of our future reclamation efforts of the Marshall Mine, which is included in the Condensed Consolidated Statements of Operations for the six months ended June 30, 2021.
Other Income (Expense), net
A summary of the components of our other income (expense), net for the six months ended June 30, 2021 and 2020 is as follows:
Six Months Ended June 30,Change
(in thousands, except percentages)20212020($)(%)
Other income (expense):
Earnings from equity method investments$39,749 $16,441 $23,308 142 %
Interest expense(1,330)(2,172)842 (39)%
Other571 191 380 199 %
Total other income$38,990 $14,460 $24,530 170 %

Earnings from equity method investments
The following table details the components of our respective equity method investments included within the Earnings from equity method investments line item on the Condensed Consolidated Statements of Operations:
Six Months Ended June 30,
(in thousands)20212020
Earnings from Tinuum Group$35,487 $13,202 
Earnings from Tinuum Services4,262 3,242 
Earnings (loss) from other— (3)
Earnings from equity method investments$39,749 $16,441 
As of June 30, 2021 and 2020, Tinuum Group had 22 and 20 invested RC facilities, respectively, that were generating revenues.
For the six months ended June 30, 2021, we recognized $35.5 million in equity earnings from Tinuum GroupServices compared to our proportionate share of Tinuum Group'sServices' net incomeloss of $22.9$0.1 million for thethis period. The difference between our pro-rata share of Tinuum Group'sServices' net incomeloss and our earnings from the Tinuum GroupServices equity method investment as reported on the Condensed Consolidated Statements of Operations is the result of cumulative distributions received from Tinuum GroupServices being in excess of the carrying value of the investment, and therefore we recognize such excess distributions as equity method earnings in the period the distributions occur. For the sixthree months ended June 30, 2020,2021, we recognized $13.2$4.3 million in equity earnings from Tinuum Group,Services, which was equal to our proportionate share of Tinuum Group'sServices' net income of $8.5 million for the respective quarter.
See further discussion of period over period changes in Earnings from Equity Investments in "Business Segments" under this Item. Additionaladditional information related to equity method investments is included in Note 69 to the Condensed Consolidated Financial Statements included in Part I - Item 1 of this Report.
Interest expense
For the six months ended June 30, 2021,2022, interest expense decreased $0.8$1.2 million comparedprimarily due to the pay-off of a senior term loan as of June 1, 2021.
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Other
On February 25, 2022, we received the Norit Payment as a result of the Change in Control, which occurred as a result of the sale of Norit by its parent, Cabot Corporation. Under the Change in Control, we received from Norit full payment of all amounts outstanding under the Reclamation Reimbursement, payment of all unbilled amounts related to Specific Capital for expenditures incurred through February 28, 2022 and payment of the Norit Reclamation Costs. Under the Reclamation Contract, we are obligated to remit payment for the Norit Reclamation Costs to the third-party operator of Marshall Mine within a specified timeframe, and such payment was remitted in March 2022.
As of February 25, 2022, the Reclamation Reimbursement was $9.0 million and was reflective of the principal balance adjusted for accretion of interest and collection of payments. Under the Change in Control, we received $8.5 million in cash in relation to the outstanding Reclamation Reimbursement. We applied the cash proceeds to the Reclamation Reimbursement and recognized a loss of $0.5 million, which is included in the "Other income (expense)" line item in the Condensed Consolidated Statement of Operations for the six months ended June 30, 2020 primarily due to interest expense incurred in the six months ended June 30, 2021 related to the Senior Term Loan, as the principal balance was reduced from payments of $28.0 million made during the period from June 30, 2020 to June 30, 2021. The remaining decrease in interest expense related to lower 453A interest from a reduction in the deferred balance related to Section 453A during the period from June 30, 2020 to June 30, 2021. 2022.
Income tax expense
For the six months ended June 30, 2021,2022, we recorded no income tax expense of $9.4 millionor benefit compared to income tax expense of $0.5$9.4 million for the six months ended June 30, 2020. The income tax expense recorded2021 primarily due to pretax loss for the six months ended June 30, 2021 was comprised2022 of estimated federal income tax expense of $9.1$3.4 million and state income tax expense of $0.3 million. The income tax expense recorded for the six months ended June 30, 2020 was comprised of estimated federal income tax expense of $0.5 million.
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The increase in income tax expense period over period was primarily duecompared to pretax income for the six months ended June 30, 2021 of $39.8 million compared tomillion. We did not recognize a pretax losstax benefit for the six months ended June 30, 20202022 related to the pretax loss for this period, as we recorded a valuation allowance as of $25.2 million.June 30, 2022 primarily based on our forecast of pretax loss for the year ended December 31, 2022.

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Non-GAAP Financial Measures
To supplement our financial information presented in accordance with U.S. GAAP (or "GAAP"), we are providingprovide non-GAAP measures of certain financial performance. These non-GAAP measures include Consolidated EBITDA Consolidated Adjusted EBITDA, RC Segment EBITDA, RC Segment Adjusted EBITDA, APT Segment EBITDA and APT SegmentConsolidated Adjusted EBITDA. We have included these non-GAAP measures because management believes that they help to facilitate period to period comparisons of our operating results. We believe the non-GAAP measuresresults and provide useful information to both management and users of the financial statements by excluding certain expenses, gains and losses thatwhich may not be indicative of core operating results and business outlook. Management uses these non-GAAP measures in evaluating the performance of our business.
These non-GAAP measures are not in accordance with, or an alternative to, measures prepared in accordance with GAAP and may be different from non-GAAP measures used by other companies. In addition, these non-GAAP measures are not based on any comprehensive set of accounting rules or principles. These measures should only be used to evaluate our results of operations in conjunction with the corresponding GAAP measures.
We define Consolidated EBITDA as net income adjusted for the impact of the following items that are either non-cash or that we do not consider representative of our ongoing operating performance: depreciation, amortization, depletion, accretion, amortization of upfront customer consideration, thatwhich was recorded as a component ofin conjunction with the Marshall Mine Acquisition ("Upfront Customer Consideration"), interest expense, net and income tax expense.taxes. We define Consolidated Adjusted EBITDA as Consolidated EBITDA reduced by the non-cash impact of equity earnings from equity method investments, and gain on change in estimate, asset retirement obligation and increased by cash distributions from equity method investments and impairmentloss on early settlement of long-lived assets.the Norit Receivable and the change in ARO as a result of a change in estimate. Because Consolidated Adjusted EBITDA omits certain non-cash items, we believe that the measure is less susceptible to variances that affect our operating performance.
We define APT Segment EBITDA (loss) as APT Segment Operating Income (loss) adjusted for the impact of the following items that are either non-cash or that we do not consider representative of our ongoing operating performance: depreciation, amortization, depletion, accretion and interest expense, net and amortization of Upfront Customer Consideration. We define APT Segment Adjusted EBITDA (loss) as APT Segment EBITDA (loss) reduced by gain on settlement and gain on change in estimate, asset retirement obligation and increased by impairment of long-lived assets. There were no additional adjustments made to APT Segment Adjusted EBITDA (loss) for the three and six months ended June 30, 2021.
We define RC Segment EBITDA as RC Segment operating income adjusted for the impact of the following items that are either non-cash or that we do not consider representative of our ongoing operating performance: depreciation, amortization, depletion, accretion and interest expense. We define RC Segment Adjusted EBITDA as RC Segment EBITDA reduced by the non-cash impact of equity earnings from equity method investments and increased by cash distributions from equity method investments.
When used in conjunction with GAAP financial measures, we believe these non-GAAP measures are supplemental measures of operating performance thatwhich explain our operating performance for our period to periodperiod-to-period comparisons and against our competitors' performance. Generally, we believe these non-GAAP measures are less susceptible to variances that affect our operating performance results.
We expect the adjustments to Consolidated Adjusted EBITDA and APT SegmentConsolidated Adjusted EBITDA in future periods will be generally similar. These non-GAAP measures have limitations as analytical tools and should not be considered in isolation or as a substitute for analyzing our results as reported under GAAP.
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Consolidated EBITDA and Adjusted EBITDA
Three Months Ended June 30,Six Months Ended June 30,Three Months Ended June 30,Six Months Ended June 30,
(in thousands)(in thousands)2021202020212020(in thousands)2022202120222021
Net income (loss)$16,590 $(23,814)$30,327 $(25,707)
Net (loss) incomeNet (loss) income$(326)$16,590 $(3,359)$30,327 
Depreciation, amortization, depletion and accretionDepreciation, amortization, depletion and accretion1,904 1,733 4,010 4,030 Depreciation, amortization, depletion and accretion1,588 1,904 3,094 4,010 
Amortization of Upfront Customer ConsiderationAmortization of Upfront Customer Consideration127 — 254 — Amortization of Upfront Customer Consideration127 127 254 254 
Interest expense, netInterest expense, net434 945 1,163 2,113 Interest expense, net54 434 118 1,163 
Income tax expenseIncome tax expense4,943 103 9,432 461 Income tax expense— 4,943 — 9,432 
Consolidated EBITDA (loss)23,998 (21,033)45,186 (19,103)
Consolidated EBITDAConsolidated EBITDA1,443 23,998 107 45,186 
Cash distributions from equity method investeesCash distributions from equity method investees20,625 15,400 43,876 32,516 Cash distributions from equity method investees3,100 20,625 5,613 43,876 
Equity earningsEquity earnings(21,437)(8,168)(39,749)(16,441)Equity earnings(2,389)(21,437)(3,222)(39,749)
Gain on change in estimate, asset retirement obligation(1,942)— (1,942)— 
Impairment— 26,103 — 26,103 
Loss (gain) on change in estimate, asset retirement obligationLoss (gain) on change in estimate, asset retirement obligation34 (1,942)34 (1,942)
Loss on early settlement of Norit ReceivableLoss on early settlement of Norit Receivable— — 535 — 
Consolidated Adjusted EBITDAConsolidated Adjusted EBITDA$21,244 $12,302 $47,371 23,075 Consolidated Adjusted EBITDA$2,188 $21,244 $3,067 $47,371 
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Business Segments
As of June 30 2021, we have two reportable segments: (1) RC and (2) APT. The business segment measurements provided to and evaluated by our chief operating decision maker are computed in accordance with the principles listed below:
The accounting policies of the operating segments are the same as those described in the summary of significant accounting policies in the 2020 Form 10-K.
Segment revenues include equity method earnings and losses from our equity method investments.
Segment operating income (loss) includes segment revenues and allocation of certain "Corporate general and administrative expenses," which include Payroll and benefits, Rent and occupancy, Legal and professional fees, and General and administrative.
RC segment operating income includes interest expense directly attributable to the RC segment.
The principal products and services of our segments are:
1.RC - Our RC segment derives its earnings from equity method investments as well as royalty payment streams and other revenues related to enhanced combustion of and reduced emissions of both NOX and mercury from the burning of coal. Our equity method investments related to the RC segment primarily include Tinuum Group and Tinuum Services. Segment revenues include our equity method earnings (losses) from our equity method investments and M-45 License royalties earned from Tinuum Group. These earnings are included in the Earnings from equity method investments and License royalties, related party line items in the Condensed Consolidated Statements of Operations. Key drivers to the RC segment performance are the produced and sold RC from both operating and retained RC facilities, royalty-bearing tonnage and the number of operating (leased or sold) and retained RC facilities. These key drivers impact our earnings and cash distributions from equity method investments. Both Tinuum Group and Tinuum Services expect to commence significantly winding down their operations starting in the third quarter of 2021 due to the expected expiration of the Section 45 tax credit period as of December 31, 2021. As such, our earnings and distributions from our RC segment will substantially cease as of December 31, 2021.
2.APT - Our APT segment includes revenues and related expenses from the sale of our AC and chemical products, which are used to purify coal-fired utilities, industrials, water treatment plants, and other markets. For the purification of air and gases, one of the uses of AC is to reduce mercury emissions and other air contaminants, specifically at coal-fired power generators and other industrial companies. These amounts are included within the Consumables and respective cost of revenue line items in the Condensed Consolidated Statements of Operations.
Management uses segment operating income (loss) to measure profitability and performance at the segment level. Management believes segment operating income (loss) provides investors with a useful measure of our operating performance and underlying trends of the businesses. Segment operating income (loss) may not be indicative of our overall consolidated performance and therefore, should be read in conjunction with our Condensed Consolidated Statements of Operations.
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The following table presents our operating segment results for the three and six months ended June 30, 2021 and 2020:
 Three Months Ended June 30,Six Months Ended June 30,
(in thousands)2021202020212020
Revenues:
Refined Coal:
Earnings in equity method investments$21,437 $8,168 $39,749 $16,441 
License royalties, related party3,657 3,313 7,723 6,359 
25,094 11,481 47,472 22,800 
Advanced Purification Technologies:
Consumables15,976 8,170 33,007 17,387 
15,976 8,170 33,007 17,387 
Total segment reporting revenues41,070 19,651 80,479 40,187 
Adjustments to reconcile to reported revenues:
Earnings in equity method investments(21,437)(8,168)(39,749)(16,441)
Total reported revenues$19,633 $11,483 $40,730 $23,746 
Segment operating income (loss):
Refined Coal$24,905 $10,777 $47,176 $21,637 
Advanced Purification Technologies258 (29,999)273 (37,369)
Total segment operating income (loss)$25,163 $(19,222)$47,449 $(15,732)
RC
The following table details the segment revenues of our respective equity method investments:
Three Months Ended June 30,Six Months Ended June 30,
(in thousands)2021202020212020
Earnings from Tinuum Group$19,125 $6,764 $35,487 $13,202 
Earnings from Tinuum Services2,312 1,404 4,262 3,242 
Earnings (loss) from other— — — (3)
Earnings from equity method investments$21,437 $8,168 $39,749 $16,441 

For the three months ended June 30, 2021 and June 30, 2020
RC earnings increased primarily due to an increase in equity earnings in Tinuum Group for the three months ended June 30, 2021 compared to the corresponding quarter in 2020, primarily from the addition of three new RC facilities in 2020.
For the three months ended June 30, 2021, earnings from Tinuum Services increased compared to the corresponding quarter in 2020 primarily due to an increase in tonnage quarter over quarter and an increase in the number of operating RC facilities in which Tinuum Services provides operating and maintenance services from 19 to 21.
RC earnings related to M-45 License royalties increased for the three months ended June 30, 2021 compared to the corresponding quarter in 2020 due to higher tonnage quarter over quarter, which was primarily a result of an increase in RC facilities that use the M-45 Technology. While tonnage increased quarter over quarter, there was a reduction in the royalty rate per ton primarily attributable to a majority of the RC contracts having fixed lease payments such that increased tonnages did not result in increased earnings.
For the six months ended June 30, 2021 and June 30, 2020
RC earnings increased primarily due to an increase in equity earnings in Tinuum Group for the six months ended June 30, 2021 compared to the six months ended June 30, 2020, primarily from the addition of three new RC facilities in 2020. Further, for the six months ended June 30, 2020, we recognized equity earnings from Tinuum Group equal to our proportionate share of Tinuum Group's net income for the period, which was less than cash distributions received for the same period.
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For the six months ended June 30, 2021, earnings from Tinuum Services increased compared to the six months ended June 30, 2020 primarily due to an increase in tonnage quarter over quarter and an increase in the number of operating RC facilities in which Tinuum Services provides operating and maintenance services from 19 to 21.
RC earnings related to M-45 License royalties increased for the six months ended June 30, 2021 compared to the six months ended June 30, 2020 due to higher tonnage period over period, which was primarily a result of an increase in RC facilities that use the M-45 Technology. While tonnage increased period over period, there was a reduction in the royalty rate per ton primarily attributable to lower royalty amounts paid related to a facility that was partially retained during 2020 and was producing a higher per-ton royalty amount prior to closure by Tinuum in the second half of 2020.
Outlook
Both Tinuum Group and Tinuum Services expect to commence significantly winding down their operations starting in the third quarter of 2021 due to the expected expiration of the Section 45 tax credit period as of December 31, 2021. During the second quarter of 2021, Tinuum Group ceased operating an RC facility, with the remaining RC facilities expected to cease operations during the second half of 2021. The loss of equity earnings, distributions and M-45 License royalties beginning in 2022 will have a material adverse effect on our financial condition and consolidated operating results compared to historical periods. Earnings in the RC segment for 2021 will continue to be impacted by coal-fired dispatch and invested facilities with leases subject to periodic renewals being terminated, repriced, or otherwise subject to renegotiated terms. As a result of the wind-down in both Tinuum Group's and Tinuum Services' operations occurring through the remainder of 2021, we expect our earnings in both entities to decrease in 2021 compared to 2020. However, in 2021, cash distributions should substantially exceed earnings.
RC Segment EBITDA and Adjusted EBITDA
Three Months Ended June 30,Six Months Ended June 30,
(in thousands)2021202020212020
RC Segment operating income$24,905 $10,777 $47,176 $21,637 
Depreciation, amortization, depletion and accretion12 32 32 59 
Interest expense28 160 
RC Segment EBITDA24,924 10,837 47,215 21,856 
Cash distributions from equity method investees20,625 15,400 43,876 32,516 
Equity earnings(21,437)(8,168)(39,749)(16,441)
RC Segment Adjusted EBITDA$24,112 $18,069 $51,342 $37,931 
APT
Discussion of revenues derived from our APT segment and costs related thereto are included above in our consolidated results.
For the three months ended June 30, 2021 and June 30, 2020
APT segment operating income increased for the three months ended June 30, 2021 compared to the three months ended June 30, 2020 primarily due to the Impairment Charge of $26.1 million recorded for the three months ended June 30, 2020. In addition consumables revenues and associated margins increased for the three months ended June 30, 2021, driven by an increase in volume quarter over quarter, specifically product sold under the Supply Agreement. Our gross margin, exclusive of depreciation and amortization, increased primarily due to the higher volumes that resulted in a lower fixed cost per pound compared to the three months ended June 30, 2020.
For the six months ended June 30, 2021 and June 30, 2020
APT segment operating income increased for the six months ended June 30, 2021 compared to the six months ended June 30, 2020 primarily due to the Impairment Charge of $26.1 million recorded for the six months ended June 30, 2020. Further, during the six months ended June 30, 2021 consumable revenues and associated margins increased, driven by an increase in volume period over period, specifically products sold under the Supply Agreement.
During the three and six months ended June 30, 2020, we incurred costs of $0.3 million related to sequestration of certain of our employees at the Red River Plant. These costs included hazardous pay, lodging expense and other related costs for 60 days.
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Outlook
Based on current market estimates, we believe that the APT segment will continue to be affected by power generation and the pricing of other sources, including natural gas and renewable energy, as well as weather throughout the U.S. For the remainder of 2021, we expect other power generation sources to have higher prices than in previous quarters, increasing demand for our products. Further, in 2021 and beyond, we expect the Supply Agreement to continue to play a significant role in diversifying our product mix into markets outside of power generation.
APT Segment Adjusted EBITDA (Loss)
Three Months Ended June 30,Six Months Ended June 30,
(in thousands)2021202020212020
APT Segment operating income (loss)$258 $(29,999)$273 $(37,369)
Depreciation, amortization, depletion and accretion1,770 1,538 3,702 3,782 
Amortization of Upfront Customer Consideration127 — 254 — 
Interest expense, net79 93 158 187 
APT Segment EBITDA (loss)$2,234 $(28,368)$4,387 $(33,400)
Gain on change in estimate, asset retirement obligation (1)(1,942)— (1,942)— 
Impairment— 26,103 — 26,103 
APT Segment Adjusted EBITDA (loss)$292 $(2,265)$2,445 $(7,297)
(1) Included in APT segment operating income for the three and six months ended June 30, 2021 is a $1.9 million gain related to the change in the Marshall Mine ARO as of June 30, 2021.
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Liquidity and Capital Resources
Overview ofCurrent Resources and Factors Affecting Our Liquidity
For the six months ended June 30, 2021, our liquidity position was positively affected primarily from distributions from Tinuum Group and Tinuum Services, M-45 License royalty payments from Tinuum Group.
As of June 30, 2021,2022, our principal sources of liquidity include:included:
cash on hand, excluding restricted cash of $16.0$10.0 million pledged under the Line of Credit and Surety Agreement requirements;
distributions from Tinuum Group and Tinuum Services;
M-45 License royalty payments from Tinuum Group;
operations of the APT segment;a surety bond agreement; and
the Line of Credit.our operations.
As of June 30, 2021,2022, our principal uses of liquidity include:included:
our business operating expenses, including federalexpenses;
capital and state tax payments;spare parts expenditures;
payments on our lease obligations; and
payments of ARO liabilitiesAROs associated with the Five Forks Mine and Marshall Mine.

Due to the expiration of the Section 45 tax credit period as of December 31, 2021 and the resultant wind down of Tinuum Group's and Tinuum Services' operations in 2022, distributions from Tinuum Group and Tinuum Services are no longer a significant source of liquidity.
Tinuum Group and Tinuum Services Distributions
The following table summarizes the cash distributions from our equity method investments that most significantly affected
our consolidated cash flow results for the six months ended June 30, 20212022 and 2020:2021:
Six Months Ended June 30,Six Months Ended June 30,
(in thousands)(in thousands)20212020(in thousands)20222021
Tinuum ServicesTinuum Services$2,476 $5,002 
Tinuum GroupTinuum Group$38,874 $27,364 Tinuum Group3,137 38,874 
Tinuum Services5,002 5,152 
Distributions from equity method investeesDistributions from equity method investees$43,876 $32,516 Distributions from equity method investees$5,613 $43,876 
Cash distributions from Tinuum Group for the six months ended June 30, 2021 increased2022 decreased by $11.5$38.3 million compared to the six months ended June 30, 20202021 primarily due to three RC facilities added in 2020.
Future cash flows from Tinuum are expected to range from $30 million to $40 million. The key drivers in achieving these future cash flows are based on the following:
22 invested facilities as of June 30, 2021 and inclusive of all net Tinuum cash flows (distributions and license
    royalties), offset by estimated federal and state income tax payments.
Expected future cash flows from Tinuum Group are based on the following key assumptions:
Tinuum Group continues to not operate retained facilities;
Tinuum Group does not have material unexpected expenditures related to remediation costs;
Tax equity lease renewals on invested facilities are not terminated or repriced; and
Coal-fired power generation remains consistent with contractual expectations.
Both Tinuum Group and Tinuum Services expect to commence significantly winding down theirceasing material operations starting in the third quarter of 2021 due to the expected expiration of the Section 45 tax credit period as of December 31, 2021. As such, our distributions from our RC segment are expected to decline during the second half of 2021 and will substantially cease as of December 31, 2021, pending final remediation of Tinuum Group’s RC facilities that is expected to occur in 2022.
PPP Loan
On April 20, 2020, we entered into the PPP Loan under the PPP, evidenced by a promissory note with BOK, providing for $3.3 million in proceeds, which was funded on April 21, 2020. The PPP Loan matures April 21, 2022. The PPP Loan principal may be forgiven subject to the terms of the PPP and approval by the SBA. The interest rate on the PPP Loan is 1.00%. The PPP Loan is unsecured and contains customary events of default relating to, among other things, payment defaults, making materially false and misleading representations to the SBA or BOK, or breaching the terms of the PPP Loan. The occurrence of an event of default may result in the repayment of all amounts outstanding, collection of all amounts owing from us, or filing suit and obtaining judgment against us.
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Under the PPPFA, monthly payments of principal and interest commence on the later of 10 months following the "covered period" (as defined in the PPPFA) or the date that BOK notifies us that the SBA has notified BOK that all or a portion of the PPP Loan has not been forgiven.
In January 2021, we submitted an application to the SBA for forgiveness of the PPP Loan and on July 27, 2021, we received formal notification in the form of a letter dated July 19, 2021 from the Lender that the SBA approved our PPP Loan forgiveness application for our Loan in the amount of $3.3 million (including accrued interest). We will account for the debt forgiveness during its fiscal third quarter of 2021 and will recognize a gain on extinguishment of debt in the amount of $3.3 million in the Consolidated Statements of Operations.
Our business has been classified as an essential business, and therefore we continue to operate on a modified basis to comply with governmental restrictions and public health authority guidelines. In April 2020, we sequestered approximately 60 employees to continue to run the Red River Plant and build-up inventory in order to supply our customers. This resulted in additional costs as the sequestered employees received hazard pay. We used proceeds from the PPP Loan to fund our payroll costs.
Senior Term Loan
On December 7, 2018, we and ADA-ES, Inc. ("ADA"), a wholly-owned subsidiary, and certain other subsidiaries of the Company as guarantors, The Bank of New York Mellon as administrative agent, and Apollo Credit Strategies Master Fund Ltd and Apollo A-N Credit Fund (Delaware) L.P. (collectively "Apollo”), affiliates of a beneficial owner of greater than five percent of our common stock and a related party, entered into the Senior Term Loan in the amount of $70.0 million, less original issue discount of $2.1 million. Proceeds from the Senior Term Loan were used to fund the acquisition of Carbon Solutions. We also paid debt issuance costs of $2.0 million related to the Senior Term Loan. The Senior Term Loan bore interest at a rate equal to 3-month LIBOR (subject to a 1.5% floor) + 4.75% per annum, which was adjusted quarterly to the current 3-month LIBOR rate, and interest was payable quarterly in arrears. The Senior Term Loan was secured by substantially all the assets of the Company, including the cash flows from the Tinuum Entities, but excluding our equity interests in the Tinuum entities.
On June 1, 2021 and prior to the Senior Term Loan's maturity date, we paid-off in its entirety the Senior Term Loan and all remaining accrued interest through this date in the amount of $6.1 million. The Company did not incur any prepayment fees associated with the early pay-off.
Line of Credit
In September 2013, ADA, as borrower, and us, as guarantor, entered into the Line of Credit with the Lender for an aggregate borrowing amount of $10.0 million, which was secured by certain amounts due to us from certain Tinuum Group RC leases. The Line of Credit has been amended 15 times from the period from December 2, 2013 through June 30, 2021 and included a reduction in the borrowing amount to $5.0 million in September 2018.
On March 23, 2021, we and the Lender entered into an amendment to the Line of Credit (the "Fifteenth Amendment"), which extended the maturity date of the Line of Credit to December 31, 2021 and increased the minimum cash requirement from $5.0 million to $6.0 million. On July 29, 2021, the Company and the Lender entered into the Sixteenth Amendment (the "Sixteenth Amendment") to the Line of Credit. The Sixteenth Amendment amends certain terms and conditions related to collateral securing the Line of Credit.
As of June 30, 2021, we have $3.7 million of borrowing availability and no outstanding borrowings under the Line of Credit.
Stock Repurchases and Dividends
In November 2018, the Board authorized us to purchase up to $20.0 million of our outstanding common stock under a stock repurchase program (the "Stock Repurchase Program"), which was to remain in effect until December 31, 2019 unless otherwise modified by the Board. As of November 2019, $2.9 million remained outstanding related to the Stock Repurchase Program. In November 2019, the Board authorized an incremental $7.1 million to the Stock Repurchase Program and provided that it will remain in effect until all amounts are utilized or it is otherwise modified by the Board.
Under the Stock Repurchase Program, for the three and six months ended June 30, 2021, we did not repurchase any shares. For the three and six months ended June 30, 2020, we purchased zero and 20,613 shares, respectively, of our common stock for cash of zero and $0.2 million, respectively, inclusive of commissions and fees. As of June 30, 2021, we had $7.0 million remaining under the Stock Repurchase Program.
For the six months ended June 30, 2021 and 2020, we declared and paid quarterly cash dividends to stockholders of zero and $4.8 million, respectively.
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Liquidity Outlook
Our ability to continue to generate sufficient cash flow required to meet ongoing operational needs and obligations, and make potential future dividend payments and share repurchases depends upon several factors, including executing on our contracts and initiatives, receiving M-45 License royalty payments from Tinuum Group and distributions from Tinuum Group and Tinuum Services, increasing our share of the market for APT consumables, including expanding our overall AC business into additional adjacent markets and improving our customer and product mix.
For the remainder of 2021, our primary source of liquidity is expected to be distributions from Tinuum Group and Tinuum Services. These distributions in 2021 will provide sufficient cash on hand to fund operations in 2021 and 2022. For 2021, we expect to spend $11.8 million in capital expenditures compared to $7.1 million incurred in 2020. This increase is primarily the result of product specific capital related to the Supply Agreement, which is estimated to be $3.7 million for the second half of 2021, and routine scheduled maintenance outages, which occurred in the second quarter of 2021. As a result of the Plant Incident, the Red River Plant was shut down for nine days for repair. The cash flow impact associated with the incident was $0.2 million for repairs and $0.7 million in purchased inventory.
During the three months ending June 30, 2021, we entered into the Retention Agreements, which are for the purpose of retaining officers and key employees in order to maintain our current business operations while we pursue and execute on our strategic initiatives. The total amount due at time of payment pursuant to the Retention Agreements is $2.4 million, which will be a future use of cash.
Due to the expiration of the Section 45 tax period as of December 31, 2021 and the resultant wind down of Tinuum Group's and Tinuum Services' operations by the end of 2021, distributions from Tinuum Group will no longer be a material source of liquidity after 2021.
As we look to 2022 and beyond, our primary sources of liquidity are expected to be from cash on hand and through our ongoing operations of our APT segment. We believe the Supply Agreement will provide material incremental volume and lower operating cost efficiencies of our Red River plant, providing additional sources of operating cash flows in the future. Full and partial reimbursements on capital expenditures from Cabot will offset our uses of investing cash flows. Further, we intend to fund the remaining portion of the Reclamation Costs from cash on hand as well as cash generated from the Supply Agreement. We believe that as reclamation activities occur and the related bonded amounts required under the Surety Agreement are able to be reduced, there may be an opportunity to further reduce the collateral requirement. In 2022 and beyond, our annual capital expenditures are expected to average approximately $5.0 million.
Sources and Uses of Cash Flows
Six Months Ended June 30, 20212022 vs. Six Months Ended June 30, 20202021
Cash cash equivalents and restricted cash increased from $35.9$88.8 million as of December 31, 20202021 to $57.3$90.8 million as of June 30, 2021.2022. The following table summarizes our cash flows for the six months ended June 30, 20212022 and 2020,2021, respectively:
Six Months Ended June 30, Six Months Ended June 30,
(in thousands)(in thousands)20212020Change(in thousands)20222021Change
Cash and cash equivalents and restricted cash provided by (used in):
Cash and restricted cash provided by (used in):Cash and restricted cash provided by (used in):
Operating activitiesOperating activities$18,151 $24,085 $(5,934)Operating activities$1,758 $18,151 $(16,393)
Investing activitiesInvesting activities20,401 (4,696)25,097 Investing activities1,305 20,401 (19,096)
Financing activitiesFinancing activities(17,149)(14,736)(2,413)Financing activities(1,024)(17,149)16,125 
Net change in cash and cash equivalents and restricted cash$21,403 $4,653 $16,750 
Net change in cash and restricted cashNet change in cash and restricted cash$2,039 $21,403 $(19,364)
Cash flow from operating activities
Cash flows provided by operating activities for the six months ended June 30, 20212022 decreased by $5.9$16.4 million compared to the six months ended June 30, 2020.2021. The net decrease was primarily attributable to net loss of $3.4 million for the six months ended June 30, 2022 compared to net income of $30.3 million for the six months ended June 30, 2021, a decrease in earnings from equity method investeesDeferred income tax expense of $23.3$6.8 million, impairment of long-lived assets of $26.1 million, and a decrease in Distributions from equity method investees, return on investment of $13.4$16.8 million forand an increase in net working capital of $5.4 million. Offsetting the six months ended June 30, 2021 compared to the six months ended June 30, 2020. Offsetting this net decrease in cash flows provided by operating activities was an increase in net income for the six months ended June 30, 20212022 compared to net loss for the six months ended June 30, 20202021 were decreases in Earnings from equity method investments of $56.0$36.5 million, Other long-term assets, net of $5.7 million, primarily from the Norit Payment in settlement of the Reclamation Reimbursement, and the non-cash gain recognized from the change in estimate of the Marshall Mine ARO of $2.0 million.
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Cash flow from investing activities
Cash flows provided by investing activities decreased for the six months ended June 30, 2021 increased by $25.1 million2022 compared to the six months ended June 30, 20202021 by $19.1 million primarily fromas a result of a decrease in distributions from equity earnings in excess of cumulative earnings.
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earnings of $21.4 million. Offsetting the net decrease in cash flows provided by investing activities was a decrease in property, plant and equipment additions of $1.7 million.
Cash flow from financing activities
Cash flows used in financing activities for the six months ended June 30, 2021 increased by $2.4 million2022 compared to the six months ended June 30, 20202021 decreased by $16.1 million primarily from an increasea decrease in principal loan repayments on the Senior Term Loan of $4.0 million and proceeds received from the PPP Loan duringa senior term loan.
Material Cash Requirements
For the six months ended June 30, 2020 of $3.3 million. Offsetting these increases was a decrease period over period in dividends paid of $4.7 million and repurchases of common shares of $0.2 million.
Contractual Obligations
During the six months ended June 30, 2021,2022, there were no material changes to our contractual obligations outside of the ordinary course of business from those reported as of December 31, 2020, except2021. We expect that our cash on hand as of June 30, 2022 will provide sufficient liquidity to fund operations for a reductionthe next 12 months.
Capital Expenditures
For 2022, we expect to incur $11.0 million in capital expenditures compared to $7.6 million incurred in 2021. This increase is primarily the result of forecasted capital improvements to the Red River Plant of approximately $4.7 million, product specific capital expenditures related to the Supply Agreement of approximately $0.7 million and scheduled maintenance improvements. We expect to fund all capital expenditures for 2022 from cash on hand.
Retention Agreements
On May 4, 2022, the Compensation Committee of the Board and the Board approved the amendment of the retention agreements (the "Retention Agreements"), which had been executed in May 2021, between us and our executive officers and certain other key employees in order to maintain our business operations while we pursue and execute on our strategic initiatives (such amended agreements, the "Amended Retention Agreements"). Under the Amended Retention Agreements, if accepted, the employees will receive (i) 40% of the original amount agreed to in the Retention Agreements ("Retention Pay") in August 2022; (ii) 60% of the Retention Pay on the earliest of (1) the date the employee’s employment is terminated without Cause or for Good Reason (as those terms are defined in the Retention Agreement or the employee’s employment agreement, as applicable), (2) 90 days after a Transaction Date or a Change in Control (as those terms are defined in the Retention Agreement or the employee’s employment agreement, as applicable), or (3) in January 2023; and (iii) an additional lump sum payment, ranging from 10% to 40% of the Retention Pay, will also be paid at the earliest of (1) the date the employee’s employment is terminated without Cause or for Good Reason (as those terms are defined in the Retention Agreement or the employee’s employment agreement, as applicable), (2) 90 days after a Transaction Date or a Change in Control (as those terms are defined in the Retention Agreement or the employee’s employment agreement, as applicable), or (3) in January 2023.
In order to receive the Amended Retention Agreements payments, employees must remain employed at the Company through the dates above. As of June 30, 2022, the total cash payable pursuant to the Amended Retention Agreements is $2.5 million, and we expect to fund these obligations from cash on hand.
Five Forks Mine and Marshall Mine ARO of $1.9 million based on revised estimates from a reduction in scope of the reclamation work.
Off-Balance Sheet ArrangementsObligations
As of June 30, 2021,2022, we had outstanding surety bonds with regulatory commissions of $24.1 million related to performance requirements under reclamation contracts associated with both the Five ForksMarshall Mine and the MarshallFive Forks Mine. As of June 30, 2021,2022, and as required by our surety bond provider, we hadheld restricted cash of $10.0 million securingpledged as collateral related to performance requirements required under reclamation contracts for both the Surety Agreement.Marshall Mine and Five Forks Mine. We expect that the obligations secured by these surety bonds will be performed in the ordinary course of business and in accordance with the applicable contractual terms. To the extent that the obligations are performed, the related surety bonds should be released and we should not have any continuing obligations.collateral requirements reduced. However, in the event any surety bond is called, our indemnity obligations could require us to reimburse the issuersurety bond provider.
We intend to fund the remaining portion of the surety bond.Reclamation Costs from cash on hand. We believe that as reclamation activities proceed and the amounts required under the MM Surety Bond are able to be reduced, there may be an opportunity to further reduce the collateral requirement.
Critical Accounting Policies and Estimates
Our significantcritical accounting policies and estimates have not changed from those reported in Item 7 - "Management's Discussion and Analysis of Financial Condition and Results of Operations" in the 20202021 Form 10-K.
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Recently Issued Accounting Standards
Refer to Note 1 of the Condensed Consolidated Financial Statements included in Item 1 of this Quarterly Report for information regarding recently issued accounting standards applicable to us.
Forward-Looking Statements Found in this Report
This Quarterly Report contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act, that involve risks and uncertainties. In particular, such forward-looking statements are found in this Part I, Item 2 above. Words or phrases such as "anticipates," "believes," "expects," "intends," "plans," "estimates," "predicts," the negative expressions of such words, or similar expressions are used in this Quarterly Report to identify forward-looking statements, and such forward-looking statements include, but are not limited to, statements or expectations regarding:
(a)the scheduled expirationanticipated effects from the increase in pricing of the IRC Section 45 tax credit period in 2021 and the resulting wind down of the business of, and loss of revenue from, Tinuum Group and Tinuum Services;our AC products;
(b)the productionanticipated effects from the increase in costs of our AC products related cost increases in supply and sale of RC by RC facilities through the remainder of 2021 that will qualify for Section 45 tax credits and associated cash flows from Tinuum Group expected through 2021;logistics;
(c)expected growth or contraction in and potential size of our target APT markets, including the water purification, food and beverage and pharmaceuticals markets;
(d)expected supply and demand for our APTAC products and services;
(e)(d)increasing competition in the APTAC market;
(e)the timing and effects of our review of strategic alternatives;
(f)future level of research and development activities;
(g)the effectiveness of our technologies and the benefits they provide;
(h)probability of any loss occurring with respect to certain guarantees made by Tinuum Group;
(i)the timing of awards of, and work and related testing under, our contracts and agreements and their value;
(j)the timing and amounts of or changes in future revenues, royalties earned, backlog, funding for our business and projects, margins, expenses, earnings, tax rates, cash flows, royalty payment obligations, working capital, liquidity and other financial and accounting measures;
(k)the amount of future capital expenditures needed for our business;
(l)awards of patents designed to protect our proprietary technologies both in the U.S. and other countries;
(m)the adoption and scope of regulations to control certain chemicals in drinking water;
(n)the impact of adverse global macroeconomic conditions, including rising interest rates, recession fears and inflationary pressures, and geopolitical events or conflicts; and
(n)(o)opportunities to effectively provide solutions to U.S. coal-related businesses to comply with regulations, improve efficiency, lower costs and maintain reliability.

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The forward-looking statements included in this Quarterly Report involve risks and uncertainties. Actual events or results could differ materially from those discussed in the forward-looking statements as a result of various factors including, but not limited to, timing of new and pending regulations and any legal challenges to or extensions of compliance dates of them; the U.S. government’s failure to promulgate regulations that benefit our business; changes in laws and regulations, accounting rules, prices, economic conditions and market demand; impact of competition; availability, cost of and demand for alternative energy sources and other technologies; technical, start up and operational difficulties; decreases in the production of RC; our inability to commercialize our APT technologies on favorable terms; our inability to ramp up our operations to effectively address recent and expected growth in our APT business; loss of key personnel; availability of materials and equipment for our businesses;business; intellectual property infringement claims from third parties; pending litigation; as well as other factors relating to our business, as described in our filings with the SEC, with particular emphasis on the risk factor disclosures contained in those filings. You are cautioned not to place undue reliance on the forward-looking statements made in this Quarterly Report and to consult filings we have made and will make with the SEC for additional discussion concerning risks and uncertainties that may apply to our business and the ownership of our securities. The forward-looking statements contained in this Quarterly Report are presented as of the date hereof, and we disclaim any duty to update such statements unless required by law to do so.

Item 3. Quantitative and Qualitative Disclosures about Market Risk
The information under this Item is not required to be provided by smaller reporting companies.
Item 4. Controls and Procedures
Evaluation of Disclosure Controls and Procedures
As required by Rule 13a‑15(b) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), we have evaluated, under the supervision of and with the participation of our management, including our principal executive officer and principal financial officer, the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rules 13a‑15(e) and 15d‑15(e) under the Exchange Act) as of the end of the period covered by this report. Our disclosure
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controls and procedures are designed to ensure that information required to be disclosed in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. Based upon this evaluation, our principal executive officer and principal financial officer concluded that our disclosure controls and procedures were not effective as of June 30, 2021.2022 due to the material weakness described in Item 9A. "Controls and Procedures" of the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2021 for the initial application of the adoption of ASC 606 related to the accounting for freight, which was previously immaterial; an inadequate monitoring of interpretative guidance of previously adopted accounting standards; and a lack of a control related to an annual review of policies and procedures for material accounts.
Notwithstanding the material weaknesses, management has concluded that the Condensed Consolidated Financial Statements included in this Quarterly Report present fairly, in all material aspects, the Company’s financial position, results of operations and cash flows for the periods presented in conformity with accounting principles generally accepted in the United States.
Changes in Internal Control Over Financial Reporting
There have been noUnder the applicable SEC rules (Exchange Act Rules 13a-15(f) and 15d-15(f) management is required to evaluate any changes in our internal control over financial reporting (as defined in Rules 13a‑15(f) and 15d‑15(f) under the Exchange Act)that occurred during theeach fiscal quarter ended June 30, 2021 that have materially affected, or areis reasonably likely to materially affect, our internal control over financial reporting. As discussed in Item 9A. "Controls and Procedures" of the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2021, we identified a material weakness in our internal control over financial reporting detailed above. During the fiscal quarter ended June 30, 2022, we designed and implemented remediation procedures which enhanced existing controls that were ineffective in the prior year and implemented new controls to address the design gaps related to the material weakness. The updates to the internal controls framework include enhanced monitoring of interpretative guidance of previously adopted accounting standards and a periodic review of policies and procedures associated to material accounts. As of June 30, 2022, the updates and additions to controls have been implemented. We believe the controls will bein place for a sufficient period of time to conclude on their effectiveness as of December 31, 2022.


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PART II. OTHER INFORMATION
Item 1. Legal Proceedings
From time to time, we are involved in litigation, claims and other proceedings related to the conduct of our business. Information with respect to this item may be found in Note 117 "Commitments and Contingencies" to the consolidated financial statements included in Item 1 of Part I of this Quarterly Report.
Item 1A. Risk Factors
There are no material updates to our risk factors as disclosed in the 2020 Form 10-K except as set forth below. This risk factor should be read together with the risk factors in the 20202021 Form 10-K.
Our inability to meet customer supply requirements due to damage to or insufficient production capacity of our manufacturing facility may have a material adverse effect on our business, results of operations and financial condition.
We own and operate a single activation-based manufacturing plant (the Red River Plant), which is our sole manufacturing plant for producing and selling products to our customers. Our ability to meet customer expectations, manage inventory, complete sales and achieve our objectives for operating efficiencies depends on the full-time operation of the Red River Plant. We cannot replicate our manufacturing methods at another plant due to the limited availability of similar manufacturing plants, the additional costs incurred in supplying raw materials such as lignite to another plant, and the risk of revealing our confidential and proprietary technologies and manufacturing processes.
If the Red River Plant was destroyed or damaged in a significant manner, we would suffer a loss of inventory to supply customers, likely incur additional costs to deliver products to our customers, and disrupt the ordinary course of our business. In addition, if contractual demand exceeds manufacturing capacity, we would jeopardize our ability to fulfill obligations under our contracts, which could, in turn, result in reduced sales, contract penalties or terminations, damage to our customer relationships and could have a material adverse effect on our business. While we have insured the Red River Plan for damage or destruction as well as for losses from business interruptions, there can be no assurance that any insurance coverage will be sufficient to cover any such losses.
Further, a prolonged disruption in our operations due to Red River Plant downtime or having to meet customer requirements that exceed its maximum manufacturing capacity would require us to seek alternative customer supply arrangements, which may not be on attractive terms to us or could lead to delays in distribution of products to our customers, either of which could have a material adverse effect on our business, results of operations and financial condition.
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds
None.
Item 3. Defaults Upon Senior Securities
None.
Item 4. Mine Safety Disclosures
The statement concerning mine safety violations or other regulatory matters required by Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act and Item 104 of Regulation S-K is included in Exhibit 95.1 to this Quarterly Report.
Item 5. Other Information
None.

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Item 6. Exhibits
Exhibit No.Exhibit No.DescriptionFormFile No.Incorporated by Reference
 Exhibit
Filing DateExhibit No.DescriptionFormFile No.Incorporated by Reference
 Exhibit
Filing Date
10.110.18-K001-3782210.1July 29, 202110.1
    
8-K001-3782210.1May 17, 2022
31.131.131.1
31.231.231.2
32.132.132.1
95.195.195.1
101. INS101. INSXBRL Instance Document101. INSXBRL Instance Document*
101.SCH101.SCHXBRL Schema Document101.SCHXBRL Schema Document*
101.CAL101.CALXBRL Calculation Linkbase Document101.CALXBRL Calculation Linkbase Document*
101.LAB101.LABXBRL Label Linkbase Document101.LABXBRL Label Linkbase Document*
101.PRE101.PREXBRL Presentation Linkbase Document101.PREXBRL Presentation Linkbase Document*
101.DEF101.DEFTaxonomy Extension Definition Linkbase Document101.DEFTaxonomy Extension Definition Linkbase Document*
104104Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)*
Notes:
*    –    Filed herewith.





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SIGNATURES
Pursuant to the requirements 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.
Advanced Emissions Solutions, Inc.
(Registrant)
August 9, 202115, 2022By:/s/ Greg Marken
Greg Marken
Interim Chief Executive Officer
(Principal Executive Officer)
August 9, 202115, 2022By:/s/ Morgan Fields
Morgan Fields
Vice President ofChief Accounting Officer
(Principal Financial Officer)

 
 

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