Form 10-Q - Quarterly report [Sections 13 or 15(d)]

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q


(Mark One)
☒			QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2024


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

For the transition period from to

Commission File Number 001-38735

ALPHA METALLURGICAL RESOURCES, INC.

(Exact name of registrant as specified in its charter)


Delaware						81-3015061
(State or other jurisdiction of incorporation or organization)						(I.R.S. Employer Identification Number)

340 Martin Luther King Jr. Blvd.
Bristol, Tennessee 37620
(Address of principal executive offices, zip code)
(423) 573-0300
(Registrant’s telephone number, including area code)

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

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Common Stock

AMR

New York Stock Exchange

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. x Yes ¨ No

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (Sec.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). x Yes ¨ No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “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 x No

Number of shares of the registrant’s Common Stock, $0.01 par value, outstanding as of April 30, 2024: 13,007,215


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	Cautionary Note Regarding Forward-Looking Statements	4

	Part I - Financial Information
Item 1.	Financial Statements
	Condensed Consolidated Statements of Operations for the Three Months Ended March 31, 2024 and March 31, 2023 (Unaudited)	6
	Condensed Consolidated Statements of Comprehensive Income for the Three Months Ended March 31, 2024 and March 31, 2023 (Unaudited)	7
	Condensed Consolidated Balance Sheets as of March 31, 2024 and December 31, 2023 (Unaudited)	8
	Condensed Consolidated Statements of Cash Flows for the Three Months Ended March 31, 2024 and March 31, 2023 (Unaudited)	9
	Condensed Consolidated Statements of Stockholders’ Equity for the Three Months Ended March 31, 2024 and March 31, 2023 (Unaudited)	11
	Notes to Condensed Consolidated Financial Statements (Unaudited)	12
	(1) Business and Basis of Presentation	12
	(2) Revenue	12
	(3) Accumulated Other Comprehensive Loss	13
	(4) Net Income Per Share	14
	(5) Inventories, net	14
	(6) Capital Stock	15
	(7) Accrued Expenses and Other Current Liabilities	15
	(8) Long-Term Debt	15
	(9) Asset Retirement Obligations	16
	(10) Fair Value of Financial Instruments and Fair Value Measurements	16
	(11) Income Taxes	17
	(12) Employee Benefit Plans	17
	(13) Related Party Transactions	18
	(14) Commitments and Contingencies	18
	(15) Segment Information	20
	Glossary	23
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	25
	Results of Operations	27
	Liquidity and Capital Resources	31
	Critical Accounting Policies and Estimates	35
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	36
Item 4.	Controls and Procedures	36


	Part II - Other Information
Item 1.	Legal Proceedings	37
Item 1A.	Risk Factors	37
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	37
Item 4.	Mine Safety Disclosures	38
Item 5.	Other Information	38
Item 6.	Exhibits	38

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CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This report includes statements of our expectations, intentions, plans and beliefs that constitute “forward-looking statements.” These statements, which involve risks and uncertainties, relate to analyses and other information that are based on forecasts of future results and estimates of amounts not yet determinable and may also relate to our future prospects, developments and business strategies. We have used the words “anticipate,” “believe,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “predict,” “project,” “should” and similar terms and phrases, including references to assumptions, in this report to identify forward-looking statements, but these terms and phrases are not the exclusive means of identifying such statements. These forward-looking statements are made based on expectations and beliefs concerning future events affecting us and are subject to uncertainties and factors relating to our operations and business environment, all of which are difficult to predict and many of which are beyond our control, that could cause our actual results to differ materially from those expressed in or implied by these forward-looking statements.

The following factors are among those that may cause actual results to differ materially from our forward-looking statements:

•the financial performance of the company;

•our liquidity, results of operations and financial condition;

•our ability to generate sufficient cash or obtain financing to fund our business operations;

•depressed levels or declines in coal prices;

•railroad, barge, truck, port and other transportation availability, performance and costs;

•changes in domestic or international environmental laws and regulations, and court decisions, including those directly affecting our coal mining and production and those affecting our customers’ coal usage, including potential climate change initiatives;

•steel and coke producers switching to alternative energy sources such as natural gas, renewables and coal from basins where we do not operate;

•our ability to obtain or renew surety bonds on acceptable terms or maintain our current bonding status;

•worldwide market demand for coal and steel, including demand for U.S. coal exports, and competition in coal markets;

•attracting and retaining key personnel and other employee workforce factors, such as labor relations;

•our ability to execute our share repurchase program;

•our ability to self-insure certain of our black lung obligations without a significant increase in required collateral;

•our ability to meet collateral requirements and fund employee benefit obligations;

•our costs of complying with health and safety regulations, including but not limited to MSHA’s new silica regulations;

•inflationary pressures on supplies and labor and significant or rapid increases in commodity prices;

•disruptions in delivery or changes in pricing from third-party vendors of key equipment and materials that are necessary for our operations, such as diesel fuel, steel products, explosives, tires and purchased coal;

•our ability to consummate financing or refinancing transactions, and other services, and the form and degree of these services available to us, which may be significantly limited by the lending, investment and similar policies of financial institutions and insurance companies regarding carbon energy producers and the environmental impacts of coal combustion;

•failures in performance, or non-performance, of services by third-party contractors, including contract mining and reclamation contractors;

•disruption in third-party coal supplies;

•cybersecurity attacks or failures, threats to physical security, extreme weather conditions or other natural disasters;

•the imposition or continuation of barriers to trade, such as tariffs;

•increased volatility and uncertainty regarding worldwide markets, seaborne transportation and our customers as a result of developments in and around Ukraine and the Middle East;

•changes in, renewal or acquisition of, terms of and performance of customers under coal supply arrangements and the refusal by our customers to receive coal under agreed-upon contract terms;

•reductions or increases in customer coal inventories and the timing of those changes;

•our production capabilities and costs;

•our ability to obtain, maintain or renew any necessary permits or rights;

•inherent risks of coal mining, including those that are beyond our control;

•changes in, interpretations of, or implementations of domestic or international tax or other laws and regulations, including the Inflation Reduction Act of 2022 and its related regulations;

•our relationships with, and other conditions affecting, our customers, including the inability to collect payments from our customers if their creditworthiness declines;

•our indebtedness as we may incur it from time to time;

•reclamation and mine closure obligations;

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•our assumptions concerning economically recoverable coal reserve estimates; and

•other factors, including the other factors discussed in the “Management’s Discussion and Analysis of Financial Condition and Results of Operations” section included elsewhere in this Quarterly Report on Form 10-Q and the “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and “Risk Factors” sections included elsewhere in this Quarterly Report on Form 10-Q and in our Annual Report on Form 10-K for the year ended December 31, 2023.

The list of factors identified above is not exhaustive. We caution readers not to place undue reliance on any forward looking statements, which are based on information currently available to us and speak only as of the dates on which they are made. When considering these forward-looking statements, you should keep in mind the cautionary statements in this report. We do not undertake any responsibility to publicly revise these forward-looking statements to take into account events or circumstances that occur after the date of this report. Additionally, except as expressly required by federal securities laws, we do not undertake any responsibility to update you on the occurrence of any unanticipated events, which may cause actual results to differ from those expressed or implied by the forward-looking statements contained in this report.

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Part I - Financial Information

Item 1. Financial Statements

ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited)

(Amounts in thousands, except share and per share data)


	Three Months Ended March 31,
	2024		2023
Revenues:
Coal revenues	$	861,283	$	906,698
Other revenues	2,789		4,537
Total revenues	864,072		911,235
Costs and expenses:
Cost of coal sales (exclusive of items shown separately below)	648,313		539,137
Depreciation, depletion and amortization	40,701		29,423
Accretion on asset retirement obligations	6,143		6,377
Amortization of acquired intangibles, net	1,675		2,197
Selling, general and administrative expenses (exclusive of depreciation, depletion and amortization shown separately above)	22,377		20,692
Other operating loss (income)	2,985		(1,092)
Total costs and expenses	722,194		596,734
Income from operations	141,878		314,501
Other (expense) income:
Interest expense	(1,086)		(1,720)
Interest income	3,971		1,518
Equity loss in affiliates	(1,640)		(1,748)
Miscellaneous (expense) income, net	(1,963)		631
Total other expense, net	(718)		(1,319)
Income before income taxes	141,160		313,182
Income tax expense	(14,165)		(42,411)
Net income	$	126,995	$	270,771

Basic income per common share	$	9.77	$	17.74
Diluted income per common share	$	9.59	$	17.01

Weighted average shares – basic	13,002,127		15,266,895
Weighted average shares – diluted	13,236,596		15,916,378

Refer to accompanying Notes to Condensed Consolidated Financial Statements.

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ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)

(Amounts in thousands)


	Three Months Ended March 31,
	2024		2023
Net income	$	126,995	$	270,771
Other comprehensive income (loss), net of tax:
Employee benefit plans:
Amortization of and adjustments to employee benefit costs	964		(627)
Income tax (expense) benefit	(214)		139
Total other comprehensive income (loss), net of tax	750		(488)
Total comprehensive income	$	127,745	$	270,283

Refer to accompanying Notes to Condensed Consolidated Financial Statements.

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ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited)

(Amounts in thousands, except share and per share data)


	March 31, 2024		December 31, 2023
Assets
Current assets:
Cash and cash equivalents	$	269,386	$	268,207
Trade accounts receivable, net of allowance for credit losses of $217 and $234 as of March 31, 2024 and December 31, 2023, respectively	526,222		509,682
Inventories, net	246,033		231,344
Prepaid expenses and other current assets	34,868		39,064
Total current assets	1,076,509		1,048,297
Property, plant, and equipment, net of accumulated depreciation and amortization of $588,735 and $558,905 as of March 31, 2024 and December 31, 2023, respectively	607,637		588,992
Owned and leased mineral rights, net of accumulated depletion and amortization of $106,429 and $99,826 as of March 31, 2024 and December 31, 2023, respectively	449,892		451,160
Other acquired intangibles, net of accumulated amortization of $40,218 and $38,543 as of March 31, 2024 and December 31, 2023, respectively	44,904		46,579
Long-term restricted investments	38,055		40,597
Long-term restricted cash	121,927		115,918
Deferred income taxes	8,284		8,028
Other non-current assets	113,601		106,486
Total assets	$	2,460,809	$	2,406,057
Liabilities and Stockholders’ Equity
Current liabilities:
Current portion of long-term debt	$	3,392	$	3,582
Trade accounts payable	151,453		128,836
Accrued expenses and other current liabilities	186,444		177,512
Total current liabilities	341,289		309,930
Long-term debt	6,034		6,792
Workers’ compensation and black lung obligations	186,023		189,226
Pension obligations	101,800		101,908
Asset retirement obligations	172,758		166,509
Deferred income taxes	41,226		39,142
Other non-current liabilities	20,535		18,622
Total liabilities	869,665		832,129
Commitments and Contingencies (Note 14)
Stockholders’ Equity
Preferred stock - par value $0.01, 5,000,000 shares authorized, none issued	—		—
Common stock - par value $0.01, 50,000,000 shares authorized, 22,371,165 issued and 13,007,215 outstanding at March 31, 2024 and 22,058,135 issued and 12,938,679 outstanding at December 31, 2023	224		221
Additional paid-in capital	830,536		834,482
Accumulated other comprehensive loss	(39,837)		(40,587)
Treasury stock, at cost: 9,363,950 shares at March 31, 2024 and 9,119,456 shares at December 31, 2023	(1,295,639)		(1,189,715)
Retained earnings	2,095,860		1,969,527
Total stockholders’ equity	1,591,144		1,573,928
Total liabilities and stockholders’ equity	$	2,460,809	$	2,406,057

Refer to accompanying Notes to Condensed Consolidated Financial Statements.

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ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)

(Amounts in thousands)


	Three Months Ended March 31,
	2024		2023
Operating activities:
Net income	$	126,995	$	270,771
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion and amortization	40,701		29,423
Amortization of acquired intangibles, net	1,675		2,197
Amortization of debt issuance costs and accretion of debt discount	280		534
Loss (gain) on disposal of assets	1,610		(2,363)
Accretion on asset retirement obligations	6,143		6,377
Employee benefit plans, net	3,833		3,261
Deferred income taxes	1,614		14,432
Stock-based compensation	2,769		3,034
Equity loss in affiliates	1,640		1,748
Other, net	(197)		126
Changes in operating assets and liabilities	9,011		(152,153)
Net cash provided by operating activities	196,074		177,387
Investing activities:
Capital expenditures	(63,618)		(74,248)
Proceeds on disposal of assets	287		3,478
Cash paid for business acquired	—		(11,919)
Purchases of investment securities	(7,230)		(141,750)
Sales and maturities of investment securities	10,172		204,660
Capital contributions to equity affiliates	(8,476)		(8,124)
Other, net	6		12
Net cash used in investing activities	(68,859)		(27,891)
Financing activities:
Principal repayments of long-term debt	(632)		(438)
Dividend and dividend equivalents paid	(3,000)		(85,979)
Common stock repurchases and related expenses	(116,089)		(144,919)
Other, net	(306)		(116)
Net cash used in financing activities	(120,027)		(231,452)
Net increase (decrease) in cash and cash equivalents and restricted cash	7,188		(81,956)
Cash and cash equivalents and restricted cash at beginning of period	384,125		355,394
Cash and cash equivalents and restricted cash at end of period	$	391,313	$	273,438

Supplemental disclosure of noncash investing and financing activities:
Financing leases and capital financing - equipment	$	—	$	1,753
Accrued capital expenditures	$	14,525	$	13,703
Accrued common stock repurchases and stock repurchase excise tax	$	4,665	$	5,995
Accrued dividend payable	$	525	$	8,973

The following table provides a reconciliation of cash and cash equivalents and restricted cash reported within the Condensed Consolidated Balance Sheets that sum to the total of the same such amounts shown in the Condensed Consolidated Statements of Cash Flows.

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	As of March 31,
	2024		2023
Cash and cash equivalents	$	269,386	$	222,507
Long-term restricted cash	121,927		50,931
Total cash and cash equivalents and restricted cash shown in the Condensed Consolidated Statements of Cash Flows	$	391,313	$	273,438

Refer to accompanying Notes to Condensed Consolidated Financial Statements.

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ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY (Unaudited)

(Amounts in thousands)


	Common Stock		Additional Paid-in Capital		Accumulated Other Comprehensive (Loss) Income		Treasury Stock at Cost		Retained Earnings		Total Stockholders’ Equity
Balances, December 31, 2022	$	217	$	815,442	$	(12,162)	$	(649,061)	$	1,275,319	$	1,429,755
Net income	—		—		—		—		270,771		270,771
Other comprehensive loss, net	—		—		(488)		—		—		(488)
Stock-based compensation, issuance of common stock for share vesting, and common stock reissuances	1		(3,444)		—		6,477		—		3,034
Common stock repurchases and related expenses	—		—		—		(148,973)		—		(148,973)
Warrants exercises	—		1,301		—		—		—		1,301
Cash dividend and dividend equivalents declared ($0.44 per share)	—		—		—		—		(6,825)		(6,825)
Balances, March 31, 2023	$	218	$	813,299	$	(12,650)	$	(791,557)	$	1,539,265	$	1,548,575

















Balances, December 31, 2023	$	221	$	834,482	$	(40,587)	$	(1,189,715)	$	1,969,527	$	1,573,928
Net income	—		—		—		—		126,995		126,995
Other comprehensive income, net	—		—		750		—		—		750
Stock-based compensation, issuance of common stock for share vesting, and common stock reissuances	3		(3,946)		—		6,712		—		2,769
Common stock repurchases and related expenses	—		—		—		(112,636)		—		(112,636)
Dividend equivalents	—		—		—		—		(662)		(662)
Balances, March 31, 2024	$	224	$	830,536	$	(39,837)	$	(1,295,639)	$	2,095,860	$	1,591,144

Refer to accompanying Notes to Condensed Consolidated Financial Statements.

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ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

(1) Business and Basis of Presentation

Business

Alpha is a Tennessee-based mining company with operations in Virginia and West Virginia. With customers across the globe, high-quality reserves and significant port capacity, Alpha is a leading U.S. supplier of metallurgical coal products for the steel industry.

Basis of Presentation

Together, the condensed consolidated statements of operations, comprehensive income, balance sheets, cash flows and stockholders’ equity for the Company are referred to as the “Condensed Consolidated Financial Statements.” The Condensed Consolidated Financial Statements are also referenced across periods as “Condensed Consolidated Statements of Operations,” “Condensed Consolidated Statements of Comprehensive Income,” “Condensed Consolidated Balance Sheets,” “Condensed Consolidated Statements of Cash Flows,” and “Condensed Consolidated Statements of Stockholders’ Equity.”

The Condensed Consolidated Financial Statements include all wholly-owned subsidiaries’ results of operations for the three months ended March 31, 2024 and 2023. All significant intercompany transactions have been eliminated in consolidation.

The accompanying interim Condensed Consolidated Financial Statements are unaudited and have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) and in accordance with the rules and regulations of the United States Securities and Exchange Commission (“SEC”) for Form 10-Q. Such rules and regulations allow the omission of certain information and footnote disclosures normally included in the financial statements prepared in accordance with U.S. GAAP as long as the financial statements are not misleading. In the opinion of management, these interim Condensed Consolidated Financial Statements reflect all normal and recurring adjustments necessary for a fair presentation of the results for the periods presented. Results of operations for the three months ended March 31, 2024 are not necessarily indicative of the results to be expected for the year ending December 31, 2024 or any other period. These interim Condensed Consolidated Financial Statements should be read in conjunction with the Company’s Consolidated Financial Statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023.

Reclassifications

For comparability purposes, certain immaterial segment information for the three months ended March 31, 2023 in the notes to the Condensed Consolidated Financials Statements has been recast to conform to the current year presentation. Refer to Note 15.

Recent Accounting Guidance

Refer to the Recent Accounting Guidance section of Note 2 contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023.

(2) Revenue

Disaggregation of Revenue from Contracts with Customers

The Company earns revenues primarily through the sale of coal produced by Company operations and coal purchased from third parties. The Company extracts, processes and markets met and thermal coal from deep and surface mines for sale to steel and coke producers, industrial customers, and electric utilities.

The Company has disaggregated revenue between met coal and thermal coal and export and domestic revenues which depicts the pricing and contract differences between the two. Export revenue generally is derived by spot or short-term contracts with pricing determined at the time of shipment or based on a market index, whereas domestic revenue is characterized by contracts that typically have a term of one year or longer and with fixed pricing terms. The following tables disaggregate the Company’s coal revenues by product category and by market to depict how the nature, amount, timing, and uncertainty of the Company’s coal revenues and cash flows are affected by economic factors:

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ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)


	Three Months Ended March 31,
	2024		2023
Export met coal revenues	$	672,739	$	647,932
Export thermal coal revenues	28,562		30,199
Total export coal revenues	$	701,301	$	678,131

Domestic met coal revenues	$	153,295	$	210,047
Domestic thermal coal revenues	6,687		18,520
Total domestic coal revenues	$	159,982	$	228,567

Total met coal revenues	$	826,034	$	857,979
Total thermal coal revenues	35,249		48,719
Total coal revenues	$	861,283	$	906,698

Performance Obligations

The following table includes estimated revenue expected to be recognized in the future related to performance obligations that are unsatisfied as of March 31, 2024:


	Remainder of 2024		2025		2026		2027		2028		Total
Estimated coal revenues	$	85,016	$	—	$	—	$	—	$	—	$	85,016

(3) Accumulated Other Comprehensive Loss

The following tables summarize the changes to accumulated other comprehensive loss during the three months ended March 31, 2024 and 2023:


	Balance January 1, 2024		Other comprehensive income (loss) before reclassifications		Amounts reclassified from accumulated other comprehensive loss		Balance March 31, 2024
Employee benefit costs	$	(40,587)	$	—	$	750	$	(39,837)


	Balance January 1, 2023		Other comprehensive income (loss) before reclassifications		Amounts reclassified from accumulated other comprehensive loss		Balance March 31, 2023
Employee benefit costs	$	(12,162)	$	—	$	(488)	$	(12,650)

The following table summarizes the amounts reclassified from accumulated other comprehensive loss and the Condensed Consolidated Statements of Operations line items affected by reclassification during the three months ended March 31, 2024 and 2023:

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ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)


Details about accumulated other comprehensive loss components	Amounts reclassified from accumulated other comprehensive loss				Affected line item in the Condensed Consolidated Statements of Operations
	Three Months Ended March 31,
	2024		2023
Employee benefit costs:
Amortization of net actuarial loss (gain) (1)	$	964	$	(627)		Miscellaneous (expense) income, net
Income tax (expense) benefit	(214)		139			Income tax expense
Total, net of income tax	$	750	$	(488)

(1) These accumulated other comprehensive loss components are included in the computation of net periodic benefit costs for certain employee benefit plans. Refer to Note 12.

(4) Net Income Per Share

The number of shares used to calculate basic net income per common share is based on the weighted average number of the Company’s outstanding common shares during the respective period. The number of shares used to calculate diluted net income per common share is based on the number of common shares used to calculate basic net income per common share plus the effect of potentially dilutive securities outstanding during the period, which is determined by the application of the treasury stock method.

When applying the treasury stock method, anti-dilution generally occurs when the exercise prices or unrecognized compensation cost per share are higher than the Company’s average stock price during an applicable period. For the three months ended March 31, 2024 and 2023, no securities were excluded from the computation of dilutive net income per common share because they would have been anti-dilutive.

The following table presents the net income per common share for the three months ended March 31, 2024 and 2023:


	Three Months Ended March 31,
	2024		2023
Basic
Net income	$	126,995	$	270,771
Weighted average common shares outstanding - basic	13,002,127		15,266,895
Net income per common share - basic	$	9.77	$	17.74

Diluted
Weighted average common shares outstanding - basic	13,002,127		15,266,895
Dilutive effect of warrants	—		158,304
Dilutive effect of stock options	—		1,999
Dilutive effect of other stock-based instruments	234,469		489,180
Weighted average common shares outstanding - diluted	13,236,596		15,916,378
Net income per common share - diluted	$	9.59	$	17.01

(5) Inventories, net

Inventories, net consisted of the following:


	March 31, 2024		December 31, 2023
Raw coal	$	51,602	$	52,508
Saleable coal	130,071		120,000
Materials, supplies and other, net	64,360		58,836
Total inventories, net	$	246,033	$	231,344

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ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

(6) Capital Stock

Share Repurchase Program

The total authorization to repurchase the Company’s stock under the existing common share repurchase program adopted by the Company’s Board of Directors (the “Board”) on March 4, 2022 is $1,500,000. As of March 31, 2024, the Company had repurchased an aggregate of 6,630,535 shares under the plan for an aggregate purchase price of approximately $1,098,916 (comprised of $1,098,717 of share repurchases and $199 of related fees). The Company has also accrued a stock repurchase excise tax of $4,665 related to the share repurchase program as of March 31, 2024, which is recorded in treasury stock at cost.

(7) Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consisted of the following:


	March 31, 2024		December 31, 2023
Wages and benefits	$	59,867	$	62,811
Workers’ compensation	10,467		10,482
Black lung	10,687		10,687
Taxes other than income taxes	31,998		31,236
Asset retirement obligations	38,713		38,915
Dividend payable	427		2,342
Income taxes payable	5,050		—
Freight accrual	21,837		8,461
Other	7,398		12,578
Total accrued expenses and other current liabilities	$	186,444	$	177,512

(8) Long-Term Debt

Long-term debt consisted of the following:


	March 31, 2024		December 31, 2023
Notes payable and other	$	4,456	$	5,097

Financing leases	4,970		5,277

Total long-term debt	9,426		10,374
Less current portion	(3,392)		(3,582)
Long-term debt, net of current portion	$	6,034	$	6,792

ABL Agreement

On October 27, 2023, the Company, along with certain of its directly and indirectly owned subsidiaries (the “Borrowers”), entered into a credit agreement (the “ABL Agreement”) with Regions Bank, as lender, swingline lender, letter of credit (“LC”) issuer, administrative agent, collateral agent, and lead arranger, along with ServisFirst Bank and Texas Capital Bank, as joint lead arrangers and the other lenders party thereto. The ABL Agreement includes an asset-based revolving credit facility (the “ABL Facility”) which allows the Company to borrow cash or obtain LCs, on a revolving basis, in an aggregate amount of up to $155,000. Availability under the ABL Facility is calculated monthly and fluctuates based on qualifying amounts of coal inventory, trade accounts receivable, and in certain circumstances specified amounts of cash. The ABL Facility matures on October 27, 2027. As of March 31, 2024 and December 31, 2023, the Company had no amounts borrowed and $61,282 and $60,896 LCs outstanding under the ABL Facility, respectively.

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ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

The ABL Agreement contains negative and affirmative covenants and requires the Company to maintain minimum Liquidity, as defined in the ABL Agreement, of $75,000. The Company is in compliance with all covenants under the ABL Agreement as of March 31, 2024.

(9) Asset Retirement Obligations

The following table summarizes the changes in asset retirement obligations for the three months ended March 31, 2024:


Total asset retirement obligations at December 31, 2023	$	205,424
Accretion for the period	6,143
Sites added during the period	5,381
Revisions in estimated cash flows	79
Expenditures for the period	(5,556)
Total asset retirement obligations at March 31, 2024	211,471
Less current portion (1)	(38,713)
Long-term portion	$	172,758

(1) Included within Accrued expenses and other current liabilities on the Company’s Condensed Consolidated Balance Sheets. Refer to Note 7.

(10) Fair Value of Financial Instruments and Fair Value Measurements

The estimated fair values of financial instruments are determined based on relevant market information. These estimates involve uncertainty and cannot be determined with precision.

The carrying amounts for cash and cash equivalents, trade accounts receivable, net, prepaid expenses and other current assets, restricted cash, deposits, trade accounts payable, notes payable and other, financing leases, and accrued expenses and other current liabilities approximate fair value as of March 31, 2024 and December 31, 2023 due to the short maturity of these instruments.

The following tables set forth by level, within the fair value hierarchy, the Company’s financial and non-financial assets and liabilities that were accounted for at fair value on a recurring basis as of March 31, 2024 and December 31, 2023. Financial and non-financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the determination of fair value for assets and liabilities and their placement within the fair value hierarchy levels.


	March 31, 2024
	Total Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Trading securities	$	38,055	$	—	$	38,055	$	—


	December 31, 2023
	Total Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Trading securities	$	40,597	$	—	$	40,597	$	—

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ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

The following methods and assumptions were used to estimate the fair values of the assets and liabilities in the tables above:

Level 2 Fair Value Measurements

Trading Securities - Typically includes U.S. government securities. The fair values are obtained from a third-party pricing service provider. The fair values provided by the pricing service provider are based on observable market inputs including credit spreads and broker-dealer quotes, among other inputs. The Company classifies the prices obtained from the pricing services within Level 2 of the fair value hierarchy because the underlying inputs are directly observable from active markets. However, the pricing models used entail a certain amount of subjectivity and therefore differing judgments in how the underlying inputs are modeled could result in different estimates of fair value.

(11) Income Taxes

For the three months ended March 31, 2024, the Company recorded income tax expense of $14,165 on income before income taxes of $141,160. The income tax expense differs from the expected statutory amount primarily due to the permanent impact of percentage depletion, foreign-derived intangible income deductions, and stock compensation, partially offset by the impact of non-deductible compensation and state income taxes, net of federal impact. For the three months ended March 31, 2023, the Company recorded income tax expense of $42,411 on income before income taxes of $313,182. The income tax expense differs from the expected statutory amount primarily due to the permanent impact of percentage depletion and foreign-derived intangible income deductions, partially offset by the impact of state income taxes, net of federal impact.

(12) Employee Benefit Plans

The components of net periodic benefit cost other than the service cost component for black lung are included in the line item miscellaneous (expense) income, net in the Condensed Consolidated Statements of Operations.

Pension

The following table details the components of the net periodic benefit cost for pension obligations:


	Three Months Ended March 31,
	2024		2023
Interest cost	$	5,749	$	5,958
Expected return on plan assets	(5,742)		(5,484)
Amortization of net actuarial loss	298		137

Net periodic benefit cost	$	305	$	611

The Company expects to pay $12,320 in minimum required contributions to the pension plan in 2024.

Black Lung

The following table details the components of the net periodic benefit cost for black lung obligations:


	Three Months Ended March 31,
	2024		2023
Service cost	$	601	$	513
Interest cost	1,307		1,165
Expected return on plan assets	(13)		(13)
Amortization of net actuarial loss (gain)	721		(708)
Net periodic benefit cost	$	2,616	$	957

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ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

(13) Related Party Transactions

There were no material related party transactions for the three months ended March 31, 2024 or 2023.

(14) Commitments and Contingencies

(a) General

Estimated losses from loss contingencies are accrued by a charge to income when information available indicates that it is probable that an asset has been impaired or a liability has been incurred and the amount of the loss can be reasonably estimated.

If a loss contingency is not probable or reasonably estimable, disclosure of the loss contingency is made in the Condensed Consolidated Financial Statements when it is at least reasonably possible that a loss may be incurred and that the loss could be material.

(b) Commitments and Contingencies

Commitments

The Company leases coal mining and other equipment under long-term financing and operating leases with varying terms. In addition, the Company leases mineral interests and surface rights from landowners under various terms and royalty rates.

Other Commitments

The Company has outstanding unconditional purchase obligations, including an estimated $40,000 in the remainder of 2024 for funding of Dominion Terminal Associates (“DTA”). Under the terms of its partnership related agreements with respect to its investment in DTA, the Company is required to fund its proportionate share of DTA’s ongoing operating and capital costs. In November 2023, the Company, together with DTA management announced that DTA needed additional capital investment to maximize functionality and minimize downtime due to mechanical issues. Beyond the Company’s share of routine operating costs, it expects to invest up to an incremental $25,000 per year for infrastructure and equipment upgrades at DTA over the next 6 years. In addition, to mitigate the risk of shipment delays during the upgrade period, in April 2024, the Company entered into a 3-year agreement which would allow for the loading of 1,200 to 2,000 tons of coal annually at a third party terminal in Newport News, VA. The uses of the Company’s 2024 funding of DTA include routine operating and capital costs and infrastructure and equipment upgrades.

Contingencies

Extensive regulation of the impacts of mining on the environment and of maintaining workplace safety has had, and is expected to continue to have, a significant effect on the Company’s costs of production and results of operations. Further regulations, legislation or litigation in these areas may also cause the Company’s sales or profitability to decline by increasing costs or by hindering the Company’s ability to continue mining at existing operations or to permit new operations.

During the normal course of business, contract-related matters arise between the Company and its customers. When a loss related to such matters is considered probable and can reasonably be estimated, the Company records a liability.

In the normal course of business, the Company is a party to certain guarantees and financial instruments with off-balance sheet risk, such as bank LCs, performance or surety bonds, and other guarantees and indemnities related to the obligations of affiliated entities which are not reflected in the Company’s Condensed Consolidated Balance Sheets. However, the underlying liabilities that they secure, such as asset retirement obligations, workers’ compensation liabilities, and royalty obligations, are reflected in the Company’s Condensed Consolidated Balance Sheets.

The Company is required to provide financial assurance in order to perform the post-mining reclamation required by its mining permits, pay workers’ compensation claims under workers’ compensation laws in various states, pay federal black lung benefits, and perform certain other obligations. In order to provide the required financial assurance, the Company generally uses

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ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

surety bonds for post-mining reclamation and workers’ compensation obligations. The Company can also use bank LCs to collateralize certain obligations and commitments.

As of March 31, 2024, the Company had $61,282 LCs outstanding under the ABL Facility.

As of March 31, 2024, the Company had outstanding surety bonds with a total face amount of $177,588 to secure various obligations and commitments. To secure the Company’s reclamation-related obligations, the Company has $34,227 of collateral in the form of restricted cash and restricted investments supporting these obligations as of March 31, 2024.

The Company meets frequently with its surety providers and has discussions with certain providers regarding the extent of and the terms of their participation in the program. These discussions may cause the Company to shift surety bonds between providers or to alter the terms of their participation in our program. To the extent that surety bonds become unavailable or the Company’s surety bond providers require additional collateral, the Company would seek to secure its obligations with LCs, cash deposits, or other suitable forms of collateral. The Company’s failure to maintain, or inability to acquire, surety bonds or to provide a suitable alternative would have a material adverse effect on its liquidity. These failures could result from a variety of factors including the lack of availability, higher cost or unfavorable market terms of new surety bonds, and the exercise by third-party surety bond issuers of their right to refuse to renew the surety bonds.

Amounts included in restricted cash provide collateral to secure the following obligations:


	March 31, 2024		December 31, 2023
Workers’ compensation and black lung obligations	$	107,208	$	104,998
Reclamation-related obligations	3,922		685
Financial payments and other performance obligations	10,797		10,235
Total restricted cash	$	121,927	$	115,918

Amounts included in restricted investments provide collateral to secure the following obligations:


	March 31, 2024		December 31, 2023
Workers’ compensation obligations	$	3,279	$	2,514
Reclamation-related obligations	30,305		33,173
Financial payments and other performance obligations	4,471		4,910
Total restricted investments (1)	$	38,055	$	40,597

(1) Classified as long-term trading securities as of March 31, 2024 and December 31, 2023.

Amounts included in deposits provide collateral to secure the following obligations:


	March 31, 2024		December 31, 2023
Workers’ compensation obligations	$	4,500	$	4,500

Financial payments and other performance obligations	—		32
Other operating agreements	847		850
Total deposits	5,347		5,382
Less current portion	—		(32)
Total deposits, net of current portion (1)	$	5,347	$	5,350

(1) Included within Other non-current assets on the Company’s Condensed Consolidated Balance Sheets.

DCMWC Reauthorization Process

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ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

The DCMWC reauthorization was contingent, however, upon the Company’s providing collateral of $65,700 to secure certain of its black lung obligations. This proposed collateral requirement would have been an increase from the approximate $2,600 in collateral that the Company currently provides to secure these self-insured black lung obligations. The reauthorization process provided the Company with the right to appeal the security determination in writing within 30 days of the date of the notification, which appeal period the DCMWC agreed to extend to May 22, 2020. The Company exercised this right of appeal in connection with the substantial increase in the amount of required collateral. In February 2021, the U.S. Department of Labor (“DOL”) withdrew its Federal Register notice seeking comments on its bulletin describing its new method of calculating collateral requirements. The DOL removed the bulletin from its website in May 2021. On February 10, 2022, a telephone conference was held with DCMWC and DOL decision makers wherein the Company presented facts and arguments in support of its appeal. No ruling has been made on the appeal, but during the call the Company indicated that it would be willing to allocate an additional $10,000 in collateral. If the Company’s appeal is unsuccessful, the Company may be required to provide additional LCs to receive the self-insurance reauthorization from the DCMWC or alternatively insure these black lung obligations through a third-party provider that would likely also require the Company to provide additional collateral. In January 2023, the DOL proposed for public comment new regulations which, if adopted, would substantially increase the collateral required to secure self-insured federal black lung obligations. Under the proposed 120% minimum collateral requirement, the Company estimates it could be required to provide approximately $80,000 to $100,000 of collateral to secure certain of its black lung obligations. It is unclear when these regulations may become effective, but the Company believes that they will not become effective before the second half of 2024. A significant increase in these collateral obligations could have a materially adverse effect on the Company’s liquidity.

(d) Legal Proceedings

Litigation has been initiated against certain of our subsidiaries in which the plaintiffs allege violations of the Fair Labor Standards Act due to alleged failure to compensate for time “donning” and “doffing” equipment and to account for the effects in the calculation of overtime rates and pay. The plaintiffs seek collective action certification. We cannot reasonably estimate a range of potential exposure at this time. We believe the plaintiffs’ claims are without merit, but if we were ultimately unsuccessful in defending against this litigation, it could have a material, adverse effect upon our liquidity and results of operations.

In addition, the Company is party to other legal proceedings from time to time. These proceedings, as well as governmental examinations, could involve various business units and a variety of claims including, but not limited to, contract disputes, personal injury claims, property damage claims (including those resulting from blasting, trucking and flooding), environmental and safety issues, securities-related matters and employment matters. While some legal matters may specify the damages claimed by the plaintiffs, many seek an unquantified amount of damages. Even when the amount of damages claimed against the Company or its subsidiaries is stated, (i) the claimed amount may be exaggerated or unsupported; (ii) the claim may be based on a novel legal theory or involve a large number of parties; (iii) there may be uncertainty as to the likelihood of a class being certified or the ultimate size of the class; (iv) there may be uncertainty as to the outcome of pending appeals or motions; and/or (v) there may be significant factual issues to be resolved. As a result, if such legal matters arise in the future, the Company may be unable to estimate a range of possible loss for matters that have not yet progressed sufficiently through discovery and the development of important factual information and legal issues. The Company records accruals based on an estimate of the ultimate outcome of these matters, but these estimates can be difficult to determine and involve significant judgment.

(15) Segment Information

As a result of the closure of Slabcamp, the Company’s last remaining thermal mine, in August 2023, the Company changed its method of allocating certain corporate level income and expense items among its operating segments starting in 2024. Certain expenses not previously allocated to operating segments (e.g. selling, general and administrative expenses) began to be allocated. Certain other income or expense items previously allocated to operating segments began to be fully allocated to the Company’s primary Met reportable segment. For comparability purposes, prior period segment information has been recast to conform to the current year presentation.

The Company’s mining operations are located within the Central Appalachian coal basin in Virginia and West Virginia. The Company’s strategic focus is on the production of metallurgical quality coal for sale to the steel industry. The Company’s reportable segment, Met, is comprised of the Company’s mining complexes which produce, as a primary product, metallurgical quality coal and thermal coal as a byproduct. The All Other category includes the Company’s former CAPP – Thermal

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ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)

operating segment which was comprised of the Company’s mining complexes which produced, as a primary product, thermal quality coal. Segment operating results are regularly reviewed by the Chief Operating Decision Maker (“CODM”), who is the Chief Executive Officer of the Company.

Segment information and reconciliations to consolidated amounts for the three months ended March 31, 2024 and 2023 are as follows:


	Three Months Ended March 31,
	2024		2023
Coal revenues - Met	$	861,283	$	887,007
Other revenues - Met	2,789		4,537
Total revenues - Met	$	864,072	$	891,544
Coal revenues - All Other	—		19,691
Total revenues	$	864,072	$	911,235

No asset information has been disclosed as the CODM does not regularly review asset information by segment.

A reconciliation of net income to Adjusted EBITDA for the three months ended March 31, 2024 and 2023 is as follows:


	Three Months Ended March 31,
	2024		2023
Net income	$	126,995	$	270,771
Interest expense	1,086		1,720
Interest income	(3,971)		(1,518)
Income tax expense	14,165		42,411
Depreciation, depletion, and amortization	40,701		29,423
Non-cash stock compensation expense	2,769		3,034
Accretion on asset retirement obligations	6,143		6,377
Amortization of acquired intangibles, net	1,675		2,197
Adjusted EBITDA	$	189,563	$	354,415

Adjusted EBITDA - Met	$	189,563	$	350,046
Adjusted EBITDA - All Other	—		4,369
Total Adjusted EBITDA	$	189,563	$	354,415

The Company markets produced, processed and purchased coal to customers in the United States and in international markets. Revenue is tracked within the Company’s accounting records based on the product destination. The following tables present additional information on our revenues and top customers:

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ALPHA METALLURGICAL RESOURCES, INC. AND SUBSIDIARIES

Notes to Condensed Consolidated Financial Statements

(Unaudited, amounts in thousands except share and per share data)


	Three Months Ended March 31,
	2024			2023
Total coal revenues	$	861,283		$	906,698
Total revenues	$	864,072		$	911,235
Export coal revenues	$	701,301		$	678,131
Export coal revenues as % of total coal revenues	81		%	75		%
Countries with export coal revenue exceeding 10% of total revenues	India, Brazil			India
Top customer as % of total revenues	16		%	17		%
Top 10 customers as % of total revenues	81		%	78		%
Number of customers exceeding 10% of total revenues	4			4


	As of March 31,
	2024	2023
Number of customers exceeding 10% of total trade accounts receivable, net	3	3

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GLOSSARY

Alpha. Alpha Metallurgical Resources, Inc. (the “Company”) (previously named Contura Energy, Inc.).

Ash. Impurities consisting of iron, alumina and other incombustible matter that are contained in coal. Since ash increases the weight of coal, it adds to the cost of handling and can affect the burning characteristics of coal.

British Thermal Unit or BTU. A measure of the thermal energy required to raise the temperature of one pound of pure liquid water one degree Fahrenheit at the temperature at which water has its greatest density (39 degrees Fahrenheit).

Central Appalachia or CAPP. Coal producing area in eastern Kentucky, Virginia, southern West Virginia and a portion of eastern Tennessee.

Coal reserves. The economically mineable part of a measured or indicated coal resource, which includes diluting materials and allowances for losses that may occur when coal is mined or extracted.

Coal resources. Coal deposits in such form, quality, and quantity that there are reasonable prospects for economic extraction.

Coal seam. Coal deposits occur in layers. Each layer is called a “seam.”

Coke. A hard, dry carbon substance produced by heating coal to a very high temperature in the absence of air. Coke is used in the manufacture of iron and steel. Its production results in a number of useful byproducts.

ESG. Environmental, social and governance sustainability criteria.

Indicated coal resource. That part of a coal resource for which quantity and quality are estimated on the basis of adequate geological evidence and sampling sufficient to establish geological and quality continuity with reasonable certainty.

Measured coal resource. That part of a coal resource for which quantity and quality are estimated on the basis of conclusive geological evidence and sampling sufficient to test and confirm geological and quality continuity.

Merger. Merger with ANR, Inc. and Alpha Natural Resources Holdings, Inc. completed on November 9, 2018.

Metallurgical coal. The various grades of coal suitable for carbonization to make coke for steel manufacture. Also known as “met” coal, its quality is primarily differentiated based on volatility or its percent of volatile matter. Met coal typically has a particularly high BTU but low ash and sulfur content.

MSHA. The United States Mine Safety and Health Administration, which has responsibility for developing and enforcing safety and health rules for U.S. mines.

Operating Margin. Coal revenues less cost of coal sales.

Preparation plant. A preparation plant is a facility for crushing, sizing and washing coal to remove impurities and prepare it for use by a particular customer. The washing process has the added benefit of removing some of the coal’s sulfur content. A preparation plant is usually located on a mine site, although one plant may serve several mines.

Probable mineral reserve. The economically mineable part of an indicated and, in some cases, a measured coal resource.

Productivity. As used in this report, refers to clean metric tons of coal produced per underground man hour worked, as published by the MSHA.

Proven mineral reserve. The economically mineable part of a measured coal resource.

Reclamation. The process of restoring land and the environment to their original state following mining activities. The process commonly includes “recontouring” or reshaping the land to its approximate original appearance, restoring topsoil and planting native grass and ground covers. Reclamation operations are usually underway before the mining of a particular site is completed. Reclamation is closely regulated by both state and federal law.

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Roof. The stratum of rock or other mineral above a coal seam; the overhead surface of a coal working place.

Surface mine. A mine in which the coal lies near the surface and can be extracted by removing the covering layer of soil.

Thermal coal. Coal used by power plants and industrial steam boilers to produce electricity, steam or both. It generally is lower in BTU heat content and higher in volatile matter than metallurgical coal.

Tons. A “short” or net ton is equal to 2,000 pounds. A “long” or British ton is equal to 2,240 pounds; a “metric” ton (or “tonne”) is approximately 2,205 pounds. Tonnage amounts in this report are stated in short tons, unless otherwise indicated.

Underground mine. Also known as a “deep” mine. Usually located several hundred feet below the earth’s surface, an underground mine’s coal is removed mechanically and transferred by shuttle car and conveyor to the surface.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following discussion and analysis provides a narrative of our results of operations and financial condition for the three months ended March 31, 2024 and 2023. The following discussion and analysis should be read in conjunction with our Condensed Consolidated Financial Statements and related notes included elsewhere in this Quarterly Report on Form 10-Q and our Consolidated Financial Statements and related notes and risk factors included elsewhere in this Quarterly Report on Form 10-Q and in our Annual Report on Form 10-K for the year ended December 31, 2023.

The following discussion includes forward-looking statements about our business, financial condition and results of operations, including discussions about management’s expectations for our business. These statements represent projections, beliefs and expectations based on current circumstances and conditions and in light of recent events and trends, and you should not construe these statements either as assurances of performance or as promises of a given course of action. Instead, various known and unknown factors are likely to cause our actual performance and management’s actions to vary, and the results of these variances may be both material and adverse. See “Cautionary Statement Regarding Forward-Looking Statements” and “Item 1A. Risk Factors.”

Market Overview

In recent months, metallurgical coal markets have softened due to weakened global demand for steel. Economic pressures, geopolitical uncertainty, and global recessionary fears have contributed to the demand dynamics and volatility in metallurgical coal markets. Economic conditions remain uneven across the world, with generally stronger circumstances in the United States than in Europe and certain areas of Asia which continue to experience significant geopolitical strife.

Based on the World Steel Association’s (“WSA”) most recent Short Range Outlook, released in early April, market volatility is anticipated to remain high, with steel demand expected to remain weak due to continued geopolitical uncertainty coupled with the lagging effects of tight monetary policies and inflationary pressure. In this publication, WSA acknowledged the negative growth and severe market volatility experienced in the last few years but projected early signs of stabilization with the potential for an upward trend in global steel demand per year, of 1.7% and 1.2% respectively, beginning in 2024 and 2025. However, WSA projects that demand in China, the world’s largest producer of steel, will flatten in 2024, matching 2023’s levels, and then begin to slightly decline again, by 1%, in 2025. Looking at the world excluding China, the WSA expects a 3.5%-per-year increase in steel demand in both 2024 and 2025, with India leading the strong demand expectations.

Metallurgical coal prices fell significantly during the first quarter of 2024. All four indices Alpha closely monitors saw a drop of 16% or more within the quarter, with the Australian Premium Low Volatile index representing the largest reduction of 25%. The Australian Premium Low Volatile index dropped from $324.75 per metric ton on January 2, 2024 to $244.50 metric ton at the end of the first quarter. The U.S. East Coast Low Volatile index decreased from $268.00 per metric ton at the beginning of January to $225.00 per metric ton at the end of March. The U.S. East Coast High Volatile A index moved from $281.00 per metric ton at the start of the year to $225.00 per metric ton at quarter close, and the U.S. East Coast High Volatile B index decreased from $252.00 per metric ton to $200.00 per metric ton at the end of the quarter. Since then, the Australian Premium Low Volatile increased from its quarter-close level to $250.00 per metric ton on April 22, 2024, while the other three indices softened in comparison to their end-of-quarter levels. The U.S. East Coast indices of Low Volatile, High Volatile A and High Volatile B measured $218.00, $220.00, and $195.00 per ton, respectively, as of the same date.

In March 2024, the world manufacturing Purchasing Managers’ Index (“PMI”) increased to 50.6, up from 50.3 in February. India, an important market for Alpha, recorded a 16-year high PMI of 59.1 in March, up from 56.9 the prior month. United States March PMI of 51.9 was slightly lower than its February level of 52.2. Brazil’s March manufacturing reading of 53.6 was also lower than its February mark of 54.1, but still strongly in an expansionary territory. PMI for China’s manufacturing sector rose to 51.1 in March from 50.9 in February. Despite improvement in certain areas of Europe’s manufacturing sector, its overall March PMI, 46.1, was down from its February reading of 46.5 and still solidly in a contractionary position.

March 2024 global crude steel production of 161.2 million metric tons from 71 countries, as reported by the WSA, represented a decrease of 4.3% as compared to the year-ago period of March 2023. China, the largest steel-producing country, produced 88.3 million metric tons in March, 7.8% less than it produced in March 2023. India’s March production of 12.7 million metric tons was up 7.8% from its year-ago amount. Japan produced 7.2 million metrics tons of steel in March 2024, down 3.9% from March 2023. Crude steel production in the United States of 6.9 million metric tons for the month of March was unchanged from the year-ago period. Among the top ten steel-producing countries, Turkey posted the largest year-over-year percentage increase, with its March production of 3.2 million metric tons being 18% higher than the country’s year-ago output, and South Korea recorded the most significant percentage drop as their 5.3 million metric tons of March 2024

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production represented 9.5% less than the country produced a year ago. Regionally, March 2024 crude steel production of 118.3 million metric tons in the Asia and Oceania region, the largest region which contains both India and China, dropped by 5.8% against its March 2023 level. The European Union’s 11.6 million metric tons of crude steel production in March 2024 represented a decline of 4.3% year over year, while North America’s 9.5 million metric tons produced was down 1.4% against its March 2023 figure.

The American Iron and Steel Institute’s capacity utilization rate for U.S. steel mills was 77.3% for the week ending April 20, 2024. This is lower than the year-ago period when the capacity utilization rate was 78.6%.

In the seaborne thermal market, the API2 index was $101.55 per metric ton on January 2, 2024 and rose to $118.25 per metric ton at the end of March 2024.

Business Overview

We are a Tennessee-based mining company with operations in Virginia and West Virginia. With customers across the globe, high-quality reserves and significant port capacity, we are a leading supplier of metallurgical coal products to the steel industry. We operate high-quality, cost-competitive coal mines across the CAPP coal basin. As of March 31, 2024, our operations consisted of twenty-one active mines and nine coal preparation and load-out facilities, with approximately 4,210 employees. We produce, process, and sell met coal and thermal coal as a byproduct. We also sell coal produced by others, some of which is processed and/or blended with coal produced from our mines prior to resale, with the remainder purchased for resale. As of December 31, 2023, we had 316.0 million tons of reserves, which included 303.0 million tons of proven and probable metallurgical reserves and 12.9 million tons of proven and probable thermal reserves.

For the three months ended March 31, 2024 and 2023, sales of met coal were 4.0 million tons and 3.5 million tons, respectively, and accounted for approximately 90% of our coal sales volume in each period. Sales of thermal coal were 0.4 million tons for both the three months ended March 31, 2024 and 2023 and accounted for approximately 10% of our coal sales volume in each period.

Our sales of met coal were made primarily to steel companies in the northeastern and midwestern regions of the United States and in several countries in Asia, Europe, and the Americas. Our sales of thermal coal were made primarily to large utilities and industrial customers both in the United States and across the world. For the three months ended March 31, 2024 and 2023 approximately 81% and 75%, respectively, of our coal revenues were derived from coal sales made to customers outside the United States.

In addition, we generate other revenues from equipment sales, rentals, terminal and processing fees, coal and environmental analysis fees, royalties and the sale of natural gas. We also record freight and handling fulfillment revenue within coal revenues for freight and handling services provided in delivering coal to certain customers, which are a component of the contractual selling price.

As of March 31, 2024, we have one reportable segment: Met. Our Met segment operations consist of high-quality met coal mines, including Deep Mine 41, Road Fork 52, Black Eagle, and Lynn Branch. The coal produced by our Met segment operations is predominantly met coal with some amounts of thermal coal being produced as a byproduct of mining. The All Other category includes our former CAPP – Thermal operating segment which was comprised of our mining complexes which produced, as a primary product, thermal quality coal. Refer to Note 15 to our Condensed Consolidated Financial Statements for additional disclosures on reportable segments, geographic areas, and export coal revenue information.

As discussed in the “Market Overview” presented above, economic pressures, geopolitical uncertainty, and global recessionary fears have contributed to weakened global demand for steel and increased volatility in coal markets. Our three months ended March 31, 2024 results of operations were impacted by these factors.

Other Business Developments

On March 26, 2024, a large container vessel departing the Baltimore Harbor lost power and steering control and struck one of the main support piers of the Francis Scott Key Bridge, causing most of the bridge to collapse. Since that time, the collapsed elements of the bridge have blocked shipping access to and from Baltimore Harbor.

We have not used the Baltimore terminals to export our coal in nearly a decade, and thus did not have any coal stored there at the time of the bridge collapse. Instead, the significant majority of our export business travels through Dominion Terminal

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Associates (DTA), in which we hold a 65% ownership interest and comparable throughput capacity rights. We utilize other East Coast terminals, as necessary, for the remainder of our export shipments.

We do not believe that the bridge’s collapse will have direct effects on our operations. We may experience some indirect effects, however, such as greater competition for rail capacity, not only with other coal companies but with other industries who have historically exported their products through Baltimore’s port. This increased demand for rail transport may also result in rail congestion, longer shipment times and higher costs.

Nonetheless, we do not expect that the conditions resulting from the bridge collapse will have material, adverse effects on Alpha.

Factors Affecting Our Results of Operations

Sales Agreements. We manage our commodity price risk for coal sales through the use of coal supply agreements. As of April 24, 2024, we had sales commitments for 2024 as follows:


	Tons	% Priced		Average Realized Price per Ton
Met - Domestic				$161.41
Met - Export				$175.50
Met Total	16.0 million	49	%	$168.26
Thermal	1.1 million	100	%	$76.10
Met Segment	17.1 million	53	%	$155.48

Realized Pricing. Our realized price per ton of coal is influenced by many factors that vary by region, including (i) coal quality, which includes energy (heat content), sulfur, ash, volatile matter and moisture content; (ii) differences in market conventions concerning transportation costs and volume measurement; and (iii) regional supply and demand.

Costs. Our results of operations are dependent upon our ability to maximize productivity and control costs. Our primary expenses are for operating supply costs, repair and maintenance expenditures, costs of purchased coal, royalties, wages and benefits, freight and handling costs and taxes incurred in selling our coal. The principal goods and services we use in our operations include maintenance and repair parts and services, electricity, fuel, roof control and support items, explosives, tires, conveyance structures, ventilation supplies and lubricants. Our management strives to aggressively control costs and improve operating performance to mitigate external cost pressures. We experience volatility in operating costs related to fuel, explosives, steel, tires, contract services and healthcare, among others, and take measures to mitigate the increases in these costs at all operations. We have a centralized sourcing group for major supplier contract negotiation and administration, for the negotiation and purchase of major capital goods, and to support the business units. We promote competition between suppliers and seek to develop relationships with suppliers that focus on lowering our costs. We seek suppliers who identify and concentrate on implementing continuous improvement opportunities within their area of expertise. To the extent upward pressure on costs exceeds our ability to realize sales increases, or if we experience unanticipated operating or transportation difficulties, our operating margins would be negatively impacted. We may also experience difficult geologic conditions, delays in obtaining permits, labor shortages, unforeseen equipment problems, and unexpected shortages of critical materials such as tires, fuel and explosives that may result in adverse cost increases and limit our ability to produce at forecasted levels.

Results of Operations

Our results of operations for the three months ended March 31, 2024 and 2023 are discussed below. For comparability purposes, certain immaterial segment information for the three months ended March 31, 2023 has been recast to conform to the current year presentation. Refer to Note 15.

Three Months Ended March 31, 2024 Compared to the Three Months Ended March 31, 2023

Revenues

The following table summarizes information about our revenues during the three months ended March 31, 2024 and 2023:

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	Three Months Ended March 31,				Increase (Decrease)
(In thousands, except for per ton data)	2024		2023		$ or Tons		%
Coal revenues	$	861,283	$	906,698	$	(45,415)	(5.0)	%
Other revenues	2,789		4,537		(1,748)		(38.5)	%
Total revenues	$	864,072	$	911,235	$	(47,163)	(5.2)	%

Tons sold	4,365		3,915		450		11.5	%

Coal revenues. Coal revenues decreased $45.4 million, or 5.0%, for the three months ended March 31, 2024 compared to the prior year period. Lower average realizations resulting from a weaker pricing environment were the primary factor resulting in the lower revenues, partially offset by an increase of 11.5% in coal sales volumes, or 450,000 tons. Refer to the “Non-GAAP Coal revenues” section below for further detail on coal revenues for the three months ended March 31, 2024 compared to the prior year period.

Cost and Expenses

The following table summarizes information about our costs and expenses during the three months ended March 31, 2024 and 2023:


	Three Months Ended March 31,				Increase (Decrease)
(In thousands)	2024		2023		$		%
Cost of coal sales (exclusive of items shown separately below)	$	648,313	$	539,137	$	109,176	20.3	%
Depreciation, depletion and amortization	40,701		29,423		11,278		38.3	%
Accretion on asset retirement obligations	6,143		6,377		(234)		(3.7)	%
Amortization of acquired intangibles, net	1,675		2,197		(522)		(23.8)	%
Selling, general and administrative expenses (exclusive of depreciation, depletion and amortization shown separately above)	22,377		20,692		1,685		8.1	%
Other operating loss (income)	2,985		(1,092)		4,077		373.4	%
Total costs and expenses	$	722,194	$	596,734	$	125,460	21.0	%

Cost of coal sales. Cost of coal sales increased $109.2 million, or 20.3%, for the three months ended March 31, 2024 compared to the prior year period, primarily related to an 11.5% increase in coal sales volumes. In addition to increased volumes, cost of coal sales also increased due to start up costs related to our new Checkmate Powellton mine, an increased level of coal purchases, and inflationary pressure, partially offset by reductions in royalties and taxes as a result of a lower coal pricing environment.

Depreciation, depletion and amortization. Depreciation, depletion and amortization increased $11.3 million, or 38.3%, for the three months ended March 31, 2024 compared to the prior year period. The increase was primarily due to an increase in capital expenditures.

Selling, general and administrative. Selling, general and administrative expenses increased $1.7 million, or 8.1%, for the three months ended March 31, 2024 compared to the prior year period. This increase was primarily related to increases of $1.6 million in wages and benefits expense and $1.3 million in incentive pay, partially offset by decreases of $0.7 million in stock compensation expense and $0.3 million in professional services fees.

Other operating loss (income). Other operating loss increased $4.1 million, or 373.4%, for the three months ended March 31, 2024 compared to the prior year period, primarily due to a decrease in income on sale of assets in the current period.

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Total Other Expense, Net

The following table summarizes information about our total other expense, net during the three months ended March 31, 2024 and 2023:


	Three Months Ended March 31,				Increase (Decrease)
(In thousands)	2024		2023		$		%
Total other expense, net	$	718	$	1,319	$	(601)	(45.6)	%

Income Tax Expense

The following table summarizes information about our income tax expense during the three months ended March 31, 2024 and 2023:


	Three Months Ended March 31,				Increase (Decrease)
(In thousands)	2024		2023		$		%
Income tax expense	$	14,165	$	42,411	$	(28,246)	(66.6)	%

Income tax expense of $14.2 million was recorded for the three months ended March 31, 2024 on income before income taxes of $141.2 million. The effective tax rate differs from the federal statutory rate of 21% primarily due to the permanent impact of percentage depletion, foreign-derived intangible income deductions, and stock compensation, partially offset by the impact of non-deductible compensation and state income taxes, net of federal impact.

Income tax expense of $42.4 million was recorded for the three months ended March 31, 2023 on income before income taxes of $313.2 million. The effective tax rate differs from the federal statutory rate of 21% primarily due to the permanent impact of percentage depletion and foreign-derived intangible income deductions, partially offset by the impact of state income taxes, net of federal impact. Refer to Note 11 for additional information.

Non-GAAP Financial Measures

The discussion below contains “non-GAAP financial measures.” These are financial measures that either exclude or include amounts that are not excluded or included in the most directly comparable measures calculated and presented in accordance with generally accepted accounting principles in the United States (“U.S. GAAP” or “GAAP”). Specifically, we make use of the non-GAAP financial measures “Adjusted EBITDA,” “non-GAAP coal revenues,” “non-GAAP cost of coal sales,” and “non-GAAP coal margin.” We use Adjusted EBITDA to measure the operating performance of our segments and allocate resources to the segments. Adjusted EBITDA does not purport to be an alternative to net income as a measure of operating performance or any other measure of operating results, financial performance, or liquidity presented in accordance with GAAP. Moreover, this measure is not calculated identically by all companies and therefore may not be comparable to similarly titled measures used by other companies. Adjusted EBITDA is presented because management believes it is a useful indicator of the financial performance of our coal operations. We use non-GAAP coal revenues to present coal revenues generated, excluding freight and handling fulfillment revenues. Non-GAAP coal sales realization per ton for our operations is calculated as non-GAAP coal revenues divided by tons sold. We use non-GAAP cost of coal sales to adjust cost of coal sales to remove freight and handling costs, depreciation, depletion and amortization - production (excluding the depreciation, depletion and amortization related to selling, general and administrative functions), accretion on asset retirement obligations, amortization of acquired intangibles, net, and idled and closed mine costs. Non-GAAP cost of coal sales per ton for our operations is calculated as non-GAAP cost of coal sales divided by tons sold. Non-GAAP coal margin per ton for our coal operations is calculated as non-GAAP coal sales realization per ton for our coal operations less non-GAAP cost of coal sales per ton for our coal operations. The presentation of these measures should not be considered in isolation, or as a substitute for analysis of our results as reported under GAAP.

Management uses non-GAAP financial measures to supplement GAAP results to provide a more complete understanding of the factors and trends affecting the business than GAAP results alone. The definition of these non-GAAP measures may be changed periodically by management to adjust for significant items important to an understanding of operating trends and to adjust for items that may not reflect the trend of future results by excluding transactions that are not indicative of our core operating performance. Furthermore, analogous measures are used by industry analysts to evaluate the Company’s operating performance. Because not all companies use identical calculations, the presentations of these measures may not be comparable to other similarly titled measures of other companies and can differ significantly from company to company depending on long-

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term strategic decisions regarding capital structure, the tax jurisdictions in which companies operate, capital investments and other factors.

Included below are reconciliations of non-GAAP financial measures to GAAP financial measures.

The following tables summarizes certain financial information relating to our coal operations for the three months ended March 31, 2024 and 2023:


	Three Months Ended March 31,				Increase (Decrease)
(In thousands, except for per ton data)	2024		2023		$ or Tons		%
Coal revenues	$	861,283	$	906,698	$	(45,415)	(5.0)	%
Coal revenues - All Other	—		(19,691)		19,691		100.0	%
Coal revenues - Met	861,283		887,007		(25,724)		(2.9)	%
Less: Freight and handling fulfillment revenues	(133,724)		(106,252)		(27,472)		(25.9)	%
Non-GAAP Coal revenues - Met	$	727,559	$	780,755	$	(53,196)	(6.8)	%
Non-GAAP Coal sales realization per ton - Met	$	166.68	$	208.93	$	(42.25)	(20.2)	%

Cost of coal sales (exclusive of items shown separately below)	$	648,313	$	539,137	$	109,176	20.3	%
Depreciation, depletion and amortization - production (1)	40,396		29,137		11,259		38.6	%
Accretion on asset retirement obligations	6,143		6,377		(234)		(3.7)	%
Amortization of acquired intangibles, net	1,675		2,197		(522)		(23.8)	%
Total Cost of coal sales	696,527		576,848		119,679		20.7	%
Total Cost of coal sales - All Other	—		(17,921)		17,921		100.0	%
Total Cost of coal sales - Met	696,527		558,927		137,600		24.6	%
Less: Freight and handling costs - Met	(133,724)		(106,252)		(27,472)		(25.9)	%
Less: Depreciation, depletion and amortization - production - Met (1)	(40,396)		(28,879)		(11,517)		(39.9)	%
Less: Accretion on asset retirement obligations - Met	(6,143)		(3,722)		(2,421)		(65.0)	%
Less: Amortization of acquired intangibles, net - Met	(1,675)		(2,197)		522		23.8	%
Less: Idled and closed mine costs - Met	(9,775)		(4,709)		(5,066)		(107.6)	%
Non-GAAP Cost of coal sales - Met	$	504,814	$	413,168	$	91,646	22.2	%
Non-GAAP Cost of coal sales per ton - Met	$	115.65	$	110.56	$	5.09	4.6	%

GAAP Coal margin - Met	$	164,756	$	328,080	$	(163,324)	(49.8)	%
GAAP Coal margin per ton - Met	$	37.74	$	87.79	$	(50.05)	(57.0)	%

Non GAAP Coal margin - Met	$	222,745	$	367,587	$	(144,842)	(39.4)	%
Non GAAP Coal margin per ton - Met	$	51.03	$	98.36	$	(47.33)	(48.1)	%

Tons sold - Met	4,365		3,737		628		16.8	%

(1) Depreciation, depletion and amortization - production excludes the depreciation, depletion and amortization related to selling, general and administrative functions.

Non-GAAP Coal revenues. Non-GAAP coal revenues decreased $53.2 million, or 6.8%, for the three months ended March 31, 2024 compared to the prior year period. The decrease was primarily due to a $42.25 per ton, or 20.2%, reduction in non-GAAP coal sales realization per ton as pricing softened from the prior year period, partially offset by a 16.8% increase in coal sales volumes.

Non-GAAP Cost of coal sales. Non-GAAP cost of coal sales increased $91.6 million, or 22.2%, for the three months ended

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March 31, 2024 compared to the prior year period, primarily related to an 16.8% increase in coal sales volumes. In addition, average non-GAAP cost of coal sales per ton increased 4.6% due to start up costs related to our new Checkmate Powellton mine, an increased level of coal purchases, and inflationary pressure, partially offset by reductions in royalties and taxes as a result of a lower coal pricing environment.

Adjusted EBITDA

The following table presents a reconciliation of net income to Adjusted EBITDA for the three months ended March 31, 2024 and 2023:


	Three Months Ended March 31,
(In thousands)	2024		2023
Net income	$	126,995	$	270,771
Interest expense	1,086		1,720
Interest income	(3,971)		(1,518)
Income tax expense	14,165		42,411
Depreciation, depletion, and amortization	40,701		29,423
Non-cash stock compensation expense	2,769		3,034
Accretion on asset retirement obligations	6,143		6,377
Amortization of acquired intangibles, net	1,675		2,197
Adjusted EBITDA	$	189,563	$	354,415

The following table summarizes Adjusted EBITDA:


	Three Months Ended March 31,				Increase (Decrease)
(In thousands)	2024		2023		$		%
Adjusted EBITDA	$	189,563	$	354,415	$	(164,852)	(46.5)	%

Adjusted EBITDA decreased $164.9 million, or 46.5%, for the three months ended March 31, 2024 compared to the prior year period. The decrease in Adjusted EBITDA was primarily driven by decreased coal margin and lower non-GAAP coal sales realization per ton in the current period.

Liquidity and Capital Resources

Overview

Our primary sources of liquidity are derived from existing unrestricted cash balances, proceeds from future coal sales, and amounts available under our revolving credit agreement. Our primary capital resource requirements stem from the cost of our coal production and purchases, selling and administrative expenses, taxes, capital expenditures, debt service obligations, reclamation obligations, and collateral requirements. As of March 31, 2024, we had $6.0 million of long-term indebtedness, net of current portion, outstanding, and no indebtedness and $61.3 million letters of credit (“LCs”) outstanding under our ABL Facility (as defined below).

We believe that cash on hand and cash generated from our operations will be sufficient to meet our working capital, anticipated capital expenditure, income tax, debt service, collateral and reclamation obligations requirements for the next 12 months and the reasonably foreseeable future. We may also use cash in accordance with our share repurchase program. We rely on a number of assumptions in budgeting for our future activities. These include the costs for mine development to sustain capacity of our operating mines, our cash flows from operations, effects of regulation and taxes by governmental agencies, mining technology improvements and reclamation costs. These assumptions are inherently subject to significant business, political, economic, regulatory, environmental and competitive uncertainties, pending and existing climate-related initiatives, contingencies and risks, all of which are difficult to predict and many of which are beyond our control. For example, if the new authorization process for all self-insured coal mine operators is adopted, it would substantially increase the collateral required to secure our self-insured federal black lung obligations. Refer to the DCMWC Reauthorization Process section below for more information. Increased scrutiny of ESG matters specific to the coal sector could negatively influence our ability to raise capital in the future and result in a reduced number of surety and insurance providers. We may need to raise additional funds if market

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conditions deteriorate, if one or more of our assumptions prove to be incorrect or if we choose to expand our acquisition or development efforts or any other activity more rapidly than we presently anticipate and we may not be able to do so in a timely fashion, on terms acceptable to us, or at all. Additionally, we may elect to raise additional funds before we need them if the conditions for raising capital are favorable. We may seek to sell equity or debt securities or obtain additional bank credit facilities. The sale of equity securities could result in dilution to our stockholders. The incurrence of additional indebtedness could result in increased fixed obligations and additional covenants that could restrict our operations.

Liquidity

The following table summarizes our total liquidity as of March 31, 2024:


(in thousands)	March 31, 2024
Cash and cash equivalents	$	269,386
Credit facility availability (1)	93,718
Minimum liquidity requirement	(75,000)
Total liquidity	$	288,104

(1) Comprised of our unused commitments available under our credit agreement entered into on October 27, 2023 (the “ABL Agreement”) after considering $61.3 million of outstanding LCs, subject to limitations described therein.

Cash Collateral

We are required to provide cash collateral to secure our obligations under certain workers’ compensation, black lung, reclamation-related obligations, financial payments and other performance obligations, and other operating agreements. Future regulatory changes relating to these obligations could result in increased obligations, additional costs, or additional collateral requirements which could require greater use of alternative sources of funding for this purpose, which would reduce our liquidity. Refer to the DCMWC Reauthorization Process section below for information related to the new authorization process for self-insured coal mine operators being implemented by the U.S. Department of Labor (Division of Coal Mine Workers’ Compensation). As of March 31, 2024, we had the following cash collateral on our Condensed Consolidated Balance Sheets:


(in thousands)	March 31, 2024
Long-term restricted cash	$	121,927
Long-term restricted investments	38,055
Long-term deposits	5,347
Total cash collateral	$	165,329

Off-Balance Sheet Arrangements

We are required to provide financial assurance in order to perform the post-mining reclamation required by our mining permits, pay workers’ compensation claims under workers’ compensation laws in various states, pay federal black lung benefits, and perform certain other obligations. In order to provide the required financial assurance, we generally use surety bonds for post-mining reclamation and workers’ compensation obligations. We also use bank LCs to collateralize certain obligations. As of March 31, 2024, we had the following outstanding surety bonds and LCs:


(in thousands)	March 31, 2024
Surety bonds	$	177,588
Letters of credit (1)	$	61,282

(1) The LCs outstanding are under the ABL Agreement.

Refer to Note 14, part (c) for further disclosures on off-balance sheet arrangements.

Debt Financing

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The ABL Agreement includes an asset-based revolving credit facility (the “ABL Facility”). Under the ABL Facility, we may borrow cash or obtain LCs, on a revolving basis, in an aggregate amount of up to $155.0 million. We may request an increase to the capacity of the facility of up to $75.0 million provided that $25.0 million may be solely for the purpose of providing additional availability to obtain cash collateralized LCs. Availability under the ABL Facility is calculated monthly and fluctuates based on qualifying amounts of coal inventory and trade accounts receivable (the “Borrowing Base”). Generally, under the terms of the ABL Facility, to the extent outstanding borrowings and LC’s exceed the Borrowing Base, the specified amount of cash would be restricted and used to collateralize any excess outstanding amounts. The ABL Facility matures on October 27, 2027.

Refer to Note 8 for additional disclosures on long-term debt.

Capital Requirements

Our capital expenditures for the three months ended March 31, 2024 were $63.6 million. We expect to spend between $210.0 million and $240.0 million on capital expenditures during 2024. At the midpoint of guidance, this total includes approximately $171.0 million in sustaining maintenance capital, approximately $33.0 million in planned projects to invest in mine development, and approximately $21.0 million in carryover from 2023 due to timing and availability of supplies and contract labor.

Contractual Obligations

Our contractual obligations are discussed in the “Liquidity and Capital Resources—Contractual Obligations” section contained in our Annual Report on Form 10-K for the year ended December 31, 2023. There have been no material changes to our contractual obligations during the three months ended March 31, 2024.

Refer to Note 8 and Note 14 for additional disclosures on long-term debt and other commitments, respectively.

Business Updates

We own a 65.0% interest in DTA, a coal export terminal in Newport News, Virginia. DTA provides us with the ability to fulfill a broad range of customer coal quality requirements through coal blending, while also providing storage capacity and transportation flexibility. DTA is in need of capital investment to maximize functionality and minimize downtime due to mechanical issues. Under the terms of our partnership related agreements with respect to our investment in DTA, we are required to fund our proportionate share of DTA’s ongoing operating and capital costs. Beyond our share of routine operating costs, we expect we will invest up to an incremental $25.0 million per year for infrastructure and equipment upgrades at DTA over the next 6 years. In addition, to mitigate the risk of shipment delays during the upgrade period, in April 2024, we entered into a 3-year agreement which would allow for the loading of 1.2 to 2.0 million tons of coal annually at a third party terminal in Newport News, VA. In the remainder of 2024, our funding of DTA (including routine operating and capital costs and infrastructure and equipment upgrades) is estimated to total approximately $40.0 million.

We continually strive to enhance our capital structure and financial flexibility. As opportunities arise, we will continue to consider the possibility of refinancing or repayment of any outstanding debt and amendment of our credit facility, and may consider the sale of other assets or businesses, and such other measures as we believe circumstances warrant. We may decide to pursue or not pursue these opportunities at any time. Access to additional funds from liquidity-generating transactions or other sources of external financing is subject to market conditions and certain limitations, including our credit rating and covenant restrictions in our credit facilities.

As a regular part of our business, we review opportunities for, and engage in discussions and negotiations concerning, the acquisition or disposition of coal mining and related infrastructure assets and interests in coal mining companies, and acquisitions or dispositions of, or combinations or other strategic transactions involving companies with coal mining or other energy assets. When we believe that these opportunities are consistent with our strategic plans and our acquisition or disposition criteria, we will make bids or proposals and/or enter into letters of intent and other similar agreements. These bids or proposals, which may be binding or non-binding, are customarily subject to a variety of conditions and usually permit us to terminate the discussions and any related agreement if, among other things, we are not satisfied with the results of due diligence. Any acquisition opportunities we pursue could materially affect our liquidity and capital resources and may require us to incur indebtedness, seek equity capital or both. There can be no assurance that additional financing will be available on terms acceptable to us, or at all.

Income Taxes

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As of March 31, 2024, the Company has recorded federal income taxes payable of $5.1 million. Refer to Note 11 for further disclosures related to income taxes.

Pension Plan

We expect to pay $12.3 million in minimum required contributions to the pension plan in 2024. Refer to Note 12 for further disclosures related to this obligation.

DCMWC Reauthorization Process

In July 2019, the U.S. Department of Labor (Division of Coal Mine Workers’ Compensation or “DCMWC”) began implementing a new authorization process for all self-insured coal mine operators. As requested by DCMWC, we filed an application and supporting documentation for reauthorization to self-insure certain of our black lung obligations in October 2019. As a result of this application, the DCMWC notified us in a letter dated February 21, 2020 that we were reauthorized to self-insure certain of our black lung obligations for a period of one-year from February 21, 2020. The DCMWC reauthorization was contingent, however, upon us providing collateral of $65.7 million to secure certain of our black lung obligations. This collateral requirement, which the DCMWC advises represents 70% of our estimated future liability according to the DCMWC’s estimation methodology, would have been an increase of approximately 2,400% from the approximately $2.6 million in collateral which we (previously by Alpha Natural Resources Inc. prior to the Merger) have provided since 2016 to secure these self-insured black lung obligations. Future liability has not previously been estimated by the DCMWC in connection with the reauthorization process but is now being considered as part of its new collateral-setting methodology.

The reauthorization process provided us with the right to appeal the security determination in writing within 30 days of the date of the notification, which appeal period the DCMWC agreed to extend to May 22, 2020, and we exercised this right of appeal. We strongly disagree with the DCMWC’s substantially higher collateral determination and the methodology through which the calculation was derived. In February 2021, the U.S. Department of Labor (“DOL”) withdrew its Federal Register notice seeking comments on its bulletin describing its new method of calculating collateral requirements. The DOL removed the bulletin from its website in May 2021. On February 10, 2022, a telephone conference was held with DCMWC and DOL decision makers wherein we presented facts and arguments in support of our appeal. No ruling has been made on the appeal, but during the call we indicated that we would be willing to allocate an additional $10.0 million in collateral. If our appeal is unsuccessful, we may be required to provide additional LCs in order to receive self-insurance reauthorization from the DCMWC or insure these black lung obligations through a third-party provider, which would likely also require us to provide additional collateral. In January 2023, the DOL proposed for public comment new regulations which, if adopted, would substantially increase the collateral required to secure self-insured federal black lung obligations. Under the proposed 120% minimum collateral requirement, we estimate we could be required to provide approximately $80.0 million to $100.0 million of collateral to secure certain of our black lung obligations. It is unclear when these regulations may become effective, but we believe that they will not become effective before the second half of 2024. A significant increase in these collateral obligations could have a materially adverse effect on our liquidity.

Respirable Crystalline Silica Final Rule

On April 16, 2024, MSHA issued its final rule, Lowering Miners’ Exposure to Respirable Crystalline Silica and Improving Respiratory Protection, to reduce miner exposures to respirable crystalline silica and improve respiratory protection for all airborne hazards. Elements of the new rule are scheduled to begin coming into effect 60 days after the rule’s publication in the Federal Register, with compliance deadlines ranging from approximately one to two years after the publication date. The final rule lowers the permissible exposure limit of respirable crystalline silica at 50 micrograms per cubic meter of air (µg/m3) for a full shift exposure, calculated as an 8-hour time weighted average, for all miners. The final rule also includes other requirements to protect miner health and update existing respiratory protection requirements. We are currently examining the effects of the final rule and its potential effects on our business. Our compliance with these or any other new health and safety regulations could increase our mining costs substantially. Further, if we were ever found to be in violation of these regulations, we could face penalties or restrictions that may materially and adversely affect our operations, financial results and liquidity.

Climate Effect Disclosures

In March 2024, the Securities and Exchange Commission (“SEC”) adopted new rules requiring issuers to disclose certain climate-related information beginning in 2025. Shortly following their release, the rules were stayed by a federal court. The SEC subsequently stayed the rules pending resolution of ongoing litigation. We cannot be certain whether or when these rules will take effect or what form they may ultimately take. It is therefore not presently possible to estimate the cost to the company of complying with the rules.

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Share Repurchase Program

Refer to Note 6 and “Unregistered Sales of Equity Securities and Use of Proceeds” for information on the share repurchase program and the shares repurchased during the current period.

Cash Flows

Cash, cash equivalents, and restricted cash increased by $7.2 million and decreased by $82.0 million over the three months ended March 31, 2024 and 2023, respectively. The net change in cash, cash equivalents, and restricted cash was attributable to the following:


	Three Months Ended March 31,
	2024		2023
Cash flows (in thousands):
Net cash provided by operating activities	$	196,074	$	177,387
Net cash used in investing activities	(68,859)		(27,891)
Net cash used in financing activities	(120,027)		(231,452)
Net increase (decrease) in cash and cash equivalents and restricted cash	$	7,188	$	(81,956)

Operating Activities. Net cash provided by operating activities for the three months ended March 31, 2024 increased compared to the prior year period despite a reduction in non-GAAP coal margin as discussed above in “Results of Operations” as the prior year period was negatively impacted by significant increases in accounts receivable and inventory and the final payment of our contingent revenue obligation, partially offset by a reduction in amounts held on deposit for the payment of dividends.

Investing Activities. Net cash used in investing activities for the three months ended March 31, 2024 increased compared to the prior year period despite reduced levels of cash used for capital expenditures and the purchase of a business as the prior year period benefited from a higher level of net proceeds from investment security activity. The increased level of net proceeds from investment security activity in the prior period was primarily due to the liquidation of certain marketable securities to facilitate the transfer of funds to another financial institution.

Financing Activities. The decrease in net cash used in financing activities for the three months ended March 31, 2024 compared to the prior year period was driven by a lower level of common stock repurchases and a decrease in dividends paid due to the payment of a one-time special dividend in the prior year period as well as the cessation of our fixed dividend program in the fourth quarter of 2023.

Analysis of Material Debt Covenants

We were in compliance with all covenants under the ABL Agreement as of March 31, 2024, including the requirement that we maintain minimum liquidity, as defined in the ABL Agreement, of $75.0 million. A breach of the covenants in the ABL Agreement could result in a default under the terms of the agreement, and the respective lenders could then elect to declare any amounts borrowed due and payable and require outstanding LCs to be cash collateralized. In addition, a default under the terms of the agreement would inhibit our ability to make certain restricted payments, as defined in the ABL Agreement, including the Company’s ability to repurchase shares of the Company’s common stock.

Critical Accounting Policies and Estimates

The preparation of financial statements in accordance with GAAP requires management to make estimates and assumptions that affect reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities. We base our estimates on historical experience and on various other factors and assumptions, including the current economic environment, that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. We evaluate our estimates and assumptions on an ongoing basis and adjust such estimates and assumptions as facts and circumstances require. Foreign currency and energy markets, and fluctuations in demand for steel products, have combined to increase the uncertainty inherent in such estimates and assumptions. As future events and their effects cannot be determined with precision, actual results may differ significantly from these estimates. Changes in these estimates resulting from continuing changes in the economic environment will be reflected in the financial statements in future periods.

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Our critical accounting policies are discussed in the “Critical Accounting Policies and Estimates” section contained in our Annual Report on Form 10-K for the year ended December 31, 2023. Our critical accounting policies remain unchanged at March 31, 2024. Refer to the Recent Accounting Guidance section in Note 1 for further information.

Item 3. Quantitative and Qualitative Disclosures about Market Risk

Commodity Price Risk

We manage our commodity price risk for coal sales through the use of coal supply agreements. Refer to “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Factors Affecting Our Results of Operations” for information on our sales commitments for 2024.

We have exposure to commodity price risk for supplies that are used directly or indirectly in the normal course of production such as diesel fuel, steel and other items such as explosives. We manage our risk for these items through strategic sourcing contracts in normal quantities with our suppliers.

The market price of diesel fuel fluctuates due to changes in production, seasonality, and other market factors generally outside of our control. Increased fuel costs may have a negative impact on our results of operations and financial condition. As of March 31, 2024, our forecasted diesel fuel usage and fixed price diesel fuel purchase commitments for 2024 are as follows:

Budgeted Usage in Gallons

% Priced

Average Realized Price per Gallon

Diesel fuel

23.2 million

81.4

$3.34

Interest Rate Risk

As of March 31, 2024, we maintain a senior secured asset-based revolving credit facility, under which we may borrow up to $155.0 million (less amounts outstanding for LCs). Any cash borrowings under the facility would bear a floating rate of interest. No cash borrowings were outstanding under the facility as of March 31, 2024 or December 31, 2023. Refer to Note 8 for additional information. Also refer to the “Financial Statements and Supplementary Data—Note 13” section contained in our Annual Report on Form 10-K for the year ended December 31, 2023 for discussion on the terms of our long-term debt.

As of March 31, 2024 and December 31, 2023, we had investments in trading securities of $38.1 million and $40.6 million, respectively. While the fair value of these investments is exposed to risk with respect to changes in market rates of interest, we do not believe exposure to changes in interest rates is material to our Condensed Consolidated Financial Statements. We manage risk by investing in shorter term highly rated debt obligations (primarily U.S. government securities). As of March 31, 2024 and December 31, 2023, the remaining maturities of our acquired debt securities was less than 12 months.

Foreign Currency Risk

Our transactions are denominated in U.S. dollars, and, as a result, we do not have material exposure to currency exchange-rate risks. However, our coal is sold internationally in U.S. dollars and, as a result, general economic conditions in foreign markets and changes in foreign currency exchange rates may provide our foreign competitors with a competitive advantage. If our competitors’ currencies decline against the U.S. dollar or against our foreign customers’ local currencies, those competitors may be able to offer lower prices for coal to customers. Furthermore, if the currencies of our overseas customers were to significantly decline in value in comparison to the U.S. dollar, those customers may seek decreased prices for the coal we sell to them. Consequently, currency fluctuations could adversely affect the competitiveness of our coal in international markets, which could have a material adverse effect on our business, financial condition, results of operations, and cash flows.

Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures as that term is defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), that are designed to ensure that information required to be disclosed by the Company in reports that it files or submits under the Exchange Act, is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to our management, including our Chief Executive Officer (“CEO”) and our Chief Financial Officer (“CFO”), as

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appropriate, to allow timely decisions regarding required disclosures. Any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives. In accordance with Rule 13a-15(b) of the Exchange Act, we have evaluated, under the supervision of our CEO and our CFO, the effectiveness of disclosure controls and procedures as of March 31, 2024. Based on this evaluation, our CEO and our CFO concluded that our disclosure controls and procedures were effective as of March 31, 2024.

Changes in Internal Control Over Financial Reporting

There were no changes in our internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) that occurred during the period covered by this Quarterly Report on Form 10-Q that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Inherent Limitations on Effectiveness of Disclosure Controls and Procedures

Our CEO, our CFO and other members of management do not expect that our disclosure controls and procedures or our internal control over financial reporting will prevent all errors and all fraud. A control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Part II - Other Information

Item 1. Legal Proceedings

For a description of the Company’s legal proceedings, refer to Note 14, part (d), to the unaudited Condensed Consolidated Financial Statements included in Part I, Item 1 of this Quarterly Report on Form 10-Q, which is incorporated herein by reference.

Item 1A. Risk Factors

In addition to the other information set forth in this report, you should carefully consider the factors discussed in the “Risk Factors” section contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023, together with the cautionary statement under the caption “Cautionary Note Regarding Forward-Looking Statements” included elsewhere in this Quarterly Report on Form 10-Q. These described risks are not the only risks we face. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition and/or operating results.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

Repurchase of Common Stock

The following table summarizes information about shares of common stock that were repurchased during the first quarter of 2024.


	Total Number of Shares Purchased (1)	Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs (2)	Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs (In thousands) (2)(3)(4)
January 1, 2024 through January 31, 2024	225,070	$	382.15	85,660	$	495,457
February 1, 2024 through February 29, 2024	69,604	$	382.47	69,604	$	468,835
March 1, 2024 through March 31, 2024	—	$	—	—	$	468,835
	294,674			155,264

(1) Includes 139,410 common shares repurchased from employees to satisfy the employees’ statutory tax withholdings upon the vesting of stock grants. Shares that are repurchased to satisfy the employees’ statutory tax withholdings are recorded in treasury stock at cost.

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(2) The total authorization to repurchase the Company’s stock under the existing common share repurchase program adopted by the Company’s Board of Directors (the “Board”) on March 4, 2022 is $1.5 billion. Refer to Note 6 for additional information.

(3) The Company adopted a capital return program in 2019, including a stock repurchase plan with no expiration date that permitted the Company to repurchase up to an aggregate amount of $100 million of the Company's common stock. The Company suspended this stock repurchase plan on October 1, 2019 and does not currently intend to make further repurchases under it.

(4) We cannot estimate the number of shares that will be repurchased because decisions to purchase are subject to market and business conditions, levels of available liquidity, our cash needs, restrictions under agreements or obligations, legal or regulatory requirements or restrictions, and other relevant factors. This amount does not include stock repurchase related fees and excise taxes.

Item 4. Mine Safety Disclosures

Information 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 to this Quarterly Report on Form 10-Q.

Item 5. Other Information

(a) None.

(b) None.

During the quarter ended March 31, 2024, no director or officer adopted or terminated:

(i) Any contract, instruction or written plan for the purchase or sale of securities of the Company intended to satisfy the affirmative defense conditions of Rule 10b5-1(c); or

(ii) Any “non-Rule 10b5-1 trading arrangement” as defined in paragraph (c) of item 408(a) of Regulation S-K.

Item 6. Exhibits

Refer to the Exhibit Index following the signature page to this Quarterly Report on Form 10-Q.

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SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.


	ALPHA METALLURGICAL RESOURCES, INC.
Date: May 6, 2024	By:	/s/ J. Todd Munsey
	Name:	J. Todd Munsey
	Title:	Chief Financial Officer
		(Principal Financial Officer and Principal Accounting Officer)

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Exhibit Index


Exhibit No.			Description of Exhibit
3.1			Second Amended and Restated Certificate of Incorporation of Alpha Metallurgical Resources, Inc., as amended through January 22, 2021 (Incorporated by reference to Exhibit 3.1 on Form 10-Q of Alpha Metallurgical Resources, Inc. filed on November 5, 2021)
3.2			Fourth Amended and Restated Bylaws of Alpha Metallurgical Resources, Inc. (Incorporated by reference to Exhibit 3.1 on Form 8-K of Alpha Metallurgical Resources, Inc. filed on December 2, 2022)
31*			Certifications Pursuant to Rule 13a-14(a) under the Securities Exchange Act of 1934, as adopted pursuant to §302 of the Sarbanes-Oxley Act of 2002
32**			Certifications Pursuant to 18 U.S.C. §1350, As Adopted Pursuant to §906 of the Sarbanes-Oxley Act of 2002
95*			Mine Safety Disclosure Exhibit
101*			The following financial information from Alpha Metallurgical Resources, Inc.’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2024 formatted in Inline XBRL (Extensible Business Reporting Language) includes: (i) Condensed Consolidated Statements of Operations, (ii) Condensed Consolidated Statements of Comprehensive Income, (iii) Condensed Consolidated Balance Sheets, (iv) Condensed Consolidated Statements of Cash Flows, (v) Condensed Consolidated Statements of Stockholders’ Equity, and (vi) Notes to the Condensed Consolidated Financial Statements.
104*			Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

* Filed herewith

** Furnished herewith

CERTIFICATIONS

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER AND PRINCIPAL FINANCIAL OFFICER

Each of the officers below certifies that:

1.I have reviewed this Quarterly Report on Form 10-Q (this “Report”) of Alpha Metallurgical Resources, Inc. (the “Registrant”);

2.Based on my knowledge, this Report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this Report;

3.Based on my knowledge, the financial statements, and other financial information included in this Report, fairly present in all material respects the financial condition, results of operations and cash flows of the Registrant as of, and for, the periods presented in this Report;

4.The Registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined by Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Registrant and have:

a. designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this Report is being prepared;

b. designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. evaluated the effectiveness of the Registrant’s disclosure controls and procedures and presented in this Report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this Report based on such evaluation; and

d. disclosed in this Report any change in the Registrant’s internal control over financial reporting that occurred during the Registrant’s most recent fiscal quarter (the Registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Registrant’s internal control over financial reporting;

5. The Registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Registrant's auditors and the audit committee of the Registrant's board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Registrant's ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant's internal control over financial reporting.


Date: May 6, 2024

By: /s/ Charles Andrew Eidson
Charles Andrew Eidson
Chief Executive Officer
(Principal Executive Officer)


Date: May 6, 2024

By: /s/ J. Todd Munsey
J. Todd Munsey
Chief Financial Officer
(Principal Financial Officer and Principal Accounting Officer)

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of Alpha Metallurgical Resources, Inc. (the “Registrant”) for the period ended March 31, 2024, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned officers of the Registrant certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to his knowledge:

1)The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2)The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant.

Date: May 6, 2024


By: /s/ Charles Andrew Eidson
Charles Andrew Eidson
Chief Executive Officer
(Principal Executive Officer)


Date: May 6, 2024

By: /s/ J. Todd Munsey
J. Todd Munsey
Chief Financial Officer
(Principal Financial Officer and Principal Accounting Officer)

Mine Safety and Health Administration Data

Our subsidiaries’ mining operations have consistently been recognized with numerous local, state and national awards over the years for outstanding safety performance.

Our behavior-based safety process involves all employees in accident prevention and continuous improvement. Safety leadership and training programs are based upon the concepts of situational awareness and observation, changing behaviors and, most importantly, employee involvement. The core elements of our safety training include identification of critical behaviors, frequency of those behaviors, employee feedback and removal of barriers for continuous improvement.

All employees are empowered to champion the safety process. Every person is challenged to identify hazards and initiate corrective actions, ensuring that hazards are addressed in a timely manner.

All levels of the organization are expected to be proactive and commit to perpetual improvement, implementing new safety processes that promote a safe and healthy work environment.

Our subsidiaries operate multiple mining complexes in two states and are regulated by both the U.S. Mine Safety and Health Administration (“MSHA”) and state regulatory agencies. As described in more detail in the “Environmental and Other Regulatory Matters” section of our Annual Report on Form 10-K for the year ended December 31, 2023, the Federal Mine Safety and Health Act of 1977, as amended (the “Mine Act”), among other federal and state laws and regulations, imposes stringent safety and health standards on all aspects of mining operations. Regulatory inspections are mandated by these agencies with thousands of inspection shifts at our properties each year. Citations and compliance metrics at each of our mines and coal preparation facilities vary due to the size and type of the operation. We endeavor to conduct our mining and other operations in compliance with all applicable federal, state and local laws and regulations. However, violations occur from time to time. None of the violations identified or the monetary penalties assessed upon us set forth in the tables below has been material.

For purposes of reporting regulatory matters under Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act (the “Dodd-Frank Act”), we include the following table that sets forth the total number of specific citations and orders and the total dollar value of the proposed civil penalty assessments that were issued by MSHA during the current reporting period for each of our subsidiaries that is a coal mine operator, by individual mine. During the current reporting period, none of the mines operated by our subsidiaries received written notice from MSHA of a pattern of violations under Section 104(e) of the Mine Act.


Three Months Ended March 31, 2024
MSHA Mine ID	Operator	Significant and Substantial Citations Issued (Section 104 of the Mine Act) *Excludes 104(d) citations/orders	Failure to Abate Orders (Section 104(b) of the Mine Act)	Unwarrantable Failure Citations/Orders Issued (Section 104(d) of the Mine Act)	Flagrant Violations (Section 110(b)(2) of the Mine Act)	Imminent Danger Orders Issued (Section 107(a) of the Mine Act)	Dollar Value of Proposed Civil Penalty Assessments (in Thousands)	Mining Related Fatalities
4405270	Paramont Contura, LLC	3	—	—	—	—	$1.35	—
4405311	Dickenson-Russell Contura, LLC	—	—	—	—	—	$0.52	—
4407223	Paramont Contura, LLC	3	—	—	—	—	$13.94	—
4407308	Paramont Contura, LLC	5	—	—	—	—	$7.97	—
4407381	Paramont Contura, LLC	1	—	—	—	—	$—	—
4603317	Mammoth Coal Co.	—	—	—	—	—	$0.58	—
4604343	Kingston Mining Inc.	—	—	—	—	—	$0.15	—
4604637	Kepler Processing Company LLC	1	—	—	—	—	$—	—
4604669	Rum Creek Coal Sales	—	—	—	—	—	$0.15	—
4605086	Bandmill Coal, LLC	6	—	—	—	—	$3.40	—
4606188	Elk Run Coal Company, LLC	19	—	—	—	—	$—	—
4608374	Marfork Coal Company, LLC	2	—	—	—	—	$0.74	—
4608787	Nicholas Contura LLC	14	—	—	—	—	$38.33	—
4608837	Marfork Coal Company, LLC	—	—	—	—	—	$1.18	—
4608932	Kingston Mining, Inc.	2	—	—	—	—	$12.04	—
4608961	Alex Energy LLC	—	—	—	—	—	$0.14	—
4609048	Marfork Coal Company, LLC	1	—	—	—	—	$2.00	—
4609054	Republic Energy LLC	1	—	—	—	—	$4.23	—
4609091	Marfork Coal Company, LLC	5	—	—	—	—	$21.62	—
4609092	Marfork Coal Company, LLC	—	—	—	—	—	$0.59	—
4609111	Nicholas Contura LLC	—	—	—	—	—	$0.59	—
4609212	Marfork Coal Company	4	—	—	—	—	$15.00	—


4609221	Mammoth Coal Co.	—	—	—	—	—	$1.02	—
4609375	Marfork Coal Company, LLC	6	—	—	—	—	$6.55	—
4609475	Republic Energy LLC	1	—	—	—	—	$0.29	—
4609522	Spartan Mining Company, LLC	35	—	—	—	—	$128.76	—
4609550	Marfork Coal Company, LLC	9	—	—	—	—	$274.88	—
4609574	Aracoma Coal Company, LLC	2	—	—	—	—	$15.89	—
4609575	Aracoma Coal Company, LLC	19	—	—	—	—	$93.96	—
4609611	Aracoma Coal Company, LLC	1	—	—	—	—	$2.56	—
4609640	Elk Run Coal Company, LLC	1	—	—	—	—	$4.67	—
F457	Maxxim Rebuild Company, LLC	2	—	—	—	—	$0.68	—

For purposes of reporting regulatory matters under Section 1503(a) of the Dodd-Frank Act, we include the following table that sets forth a list of legal actions pending before the Federal Mine Safety and Health Review Commission, including the Administrative Law Judges thereof, pursuant to the Mine Act, and other required information, for each of our subsidiaries that is a coal mine operator, by individual mine including legal actions and other required information.


As of and For the Three Months Ended March 31, 2024
Mine ID	Operator Name	MSHA Pending Legal Actions (as of last day of reporting period) (1)	New MSHA Dockets commenced during reporting period	MSHA dockets in which final orders were entered (not appealed) during reporting period	Contests of Citations/Orders referenced in Subpart B, 29 CFR Part 2700	Contests of Proposed Penalties referenced in Subpart C, 29 CFR Part 2700	Complaints for compensation referenced in Subpart D, 29 CFR Part 2700	Complaints for discharge, discrimination, or interference referenced in Subpart E, 29 CFR Part 2700	Applications for temporary relief referenced in Subpart F 29 CFR Part 2700	Appeals of judges’ decisions or orders to FMSHRC referenced in Subpart H 29 CFR Part 2700
4608932	Kingston Mining, Inc.	1	—	—	—	1	—	—	—	—
4609091	Marfork Coal Company, LLC	7	3	1	—	6	—	1	—	—
4609221	Mammoth Coal Co.	2	—	—	—	2	—	—	—	—
4609522	Spartan Mining Company, LLC	2	1	—	—	1	—	1	—	—
4609550	Marfork Coal Company, LLC	5	3	1	—	5	—	—	—	—
4609212	Marfork Coal Company, LLC	2	1	—	—	2	—	—	—	—
4608787	Nicholas Contura, LLC	3	—	1	1	2	—	—	—	—
4609575	Aracoma Coal Company, LLC	5	—	—	—	5	—	—	—	—
4609375	Marfork Coal Company, LLC	1	1	—	—	1	—	—	—	—
4407223	Paramont Contura, LLC	1	1	—	—	1	—	—	—	—
4605086	Bandmill Coal, LLC	1	1	—	—	1	—	—	—	—

(1) The MSHA proposed assessments issued during the current reporting period do not necessarily relate to the citations or orders issued by MSHA during the current reporting period or to the pending legal actions reported herein.

Cover Page - shares	3 Months Ended
Cover Page - shares	Mar. 31, 2024	Apr. 30, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2024
Document Transition Report	false
Entity File Number	001-38735
Entity Registrant Name	ALPHA METALLURGICAL RESOURCES, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	81-3015061
Entity Address, Address Line One	340 Martin Luther King Jr. Blvd.
Entity Address, City or Town	Bristol
Entity Address, State or Province	TN
Entity Address, Postal Zip Code	37620
City Area Code	423
Local Phone Number	573-0300
Title of 12(b) Security	Common Stock
Trading Symbol	AMR
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		13,007,215
Entity Central Index Key	0001704715
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1
Amendment Flag	false

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenues:
Coal revenues	$ 861,283	$ 906,698
Other revenues	2,789	4,537
Total revenues	864,072	911,235
Costs and expenses:
Cost of coal sales (exclusive of items shown separately below)	648,313	539,137
Depreciation, depletion and amortization	40,701	29,423
Accretion on asset retirement obligations	6,143	6,377
Amortization of acquired intangibles, net	1,675	2,197
Selling, general and administrative expenses (exclusive of depreciation, depletion and amortization shown separately above)	22,377	20,692
Other operating loss (income)	2,985	(1,092)
Total costs and expenses	722,194	596,734
Income from operations	141,878	314,501
Other (expense) income:
Interest expense	(1,086)	(1,720)
Interest income	3,971	1,518
Equity loss in affiliates	(1,640)	(1,748)
Miscellaneous (expense) income, net	(1,963)	631
Total other expense, net	(718)	(1,319)
Income before income taxes	141,160	313,182
Income tax expense	(14,165)	(42,411)
Net income	$ 126,995	$ 270,771
Basic income per common share (in dollars per share)	$ 9.77	$ 17.74
Diluted income per common share (in dollars per share)	$ 9.59	$ 17.01
Weighted average shares - basic (in shares)	13,002,127	15,266,895
Weighted average shares - diluted (in shares)	13,236,596	15,916,378

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Other Comprehensive Income [Abstract]
Net income	$ 126,995	$ 270,771
Employee benefit plans:
Amortization of and adjustments to employee benefit costs	964	(627)
Income tax (expense) benefit	(214)	139
Total other comprehensive income (loss), net of tax	750	(488)
Total comprehensive income	$ 127,745	$ 270,283

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 269,386	$ 268,207
Trade accounts receivable, net of allowance for credit losses of $217 and $234 as of March 31, 2024 and December 31, 2023, respectively	526,222	509,682
Inventories, net	246,033	231,344
Prepaid expenses and other current assets	34,868	39,064
Total current assets	1,076,509	1,048,297
Property, plant, and equipment, net of accumulated depreciation and amortization of $588,735 and $558,905 as of March 31, 2024 and December 31, 2023, respectively	607,637	588,992
Owned and leased mineral rights, net of accumulated depletion and amortization of $106,429 and $99,826 as of March 31, 2024 and December 31, 2023, respectively	449,892	451,160
Other acquired intangibles, net of accumulated amortization of $40,218 and $38,543 as of March 31, 2024 and December 31, 2023, respectively	44,904	46,579
Long-term restricted investments	38,055	40,597
Long-term restricted cash	121,927	115,918
Deferred income taxes	8,284	8,028
Other non-current assets	113,601	106,486
Total assets	2,460,809	2,406,057
Current liabilities:
Current portion of long-term debt	3,392	3,582
Trade accounts payable	151,453	128,836
Accrued expenses and other current liabilities	186,444	177,512
Total current liabilities	341,289	309,930
Long-term debt	6,034	6,792
Workers’ compensation and black lung obligations	186,023	189,226
Pension obligations	101,800	101,908
Asset retirement obligations	172,758	166,509
Deferred income taxes	41,226	39,142
Other non-current liabilities	20,535	18,622
Total liabilities	869,665	832,129
Commitments and Contingencies (Note 14)
Stockholders’ Equity
Preferred stock - par value $0.01, 5,000,000 shares authorized, none issued	0	0
Common stock - par value $0.01, 50,000,000 shares authorized, 22,371,165 issued and 13,007,215 outstanding at March 31, 2024 and 22,058,135 issued and 12,938,679 outstanding at December 31, 2023	224	221
Additional paid-in capital	830,536	834,482
Accumulated other comprehensive loss	(39,837)	(40,587)
Treasury stock, at cost: 9,363,950 shares at March 31, 2024 and 9,119,456 shares at December 31, 2023	(1,295,639)	(1,189,715)
Retained earnings	2,095,860	1,969,527
Total stockholders’ equity	1,591,144	1,573,928
Total liabilities and stockholders’ equity	$ 2,460,809	$ 2,406,057

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Allowance for credit losses	$ 217	$ 234
Property, plant and equipment, accumulated amortization, depreciation and amortization	588,735	558,905
Owned and lease mineral rights, accumulated depletion and amortization	106,429	99,826
Other acquired intangibles, accumulated amortization	$ 40,218	$ 38,543
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	22,371,165	22,058,135
Common stock, shares outstanding (in shares)	13,007,215	12,938,679
Treasury stock, shares at cost (in shares)	9,363,950	9,119,456

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating activities:
Net income	$ 126,995	$ 270,771
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion and amortization	40,701	29,423
Amortization of acquired intangibles, net	1,675	2,197
Amortization of debt issuance costs and accretion of debt discount	280	534
Loss (gain) on disposal of assets	1,610	(2,363)
Accretion on asset retirement obligations	6,143	6,377
Employee benefit plans, net	3,833	3,261
Deferred income taxes	1,614	14,432
Stock-based compensation	2,769	3,034
Equity loss in affiliates	1,640	1,748
Other, net	(197)	126
Changes in operating assets and liabilities	9,011	(152,153)
Net cash provided by operating activities	196,074	177,387
Investing activities:
Capital expenditures	(63,618)	(74,248)
Proceeds on disposal of assets	287	3,478
Cash paid for business acquired	0	(11,919)
Purchases of investment securities	(7,230)	(141,750)
Sales and maturities of investment securities	10,172	204,660
Capital contributions to equity affiliates	(8,476)	(8,124)
Other, net	6	12
Net cash used in investing activities	(68,859)	(27,891)
Financing activities:
Principal repayments of long-term debt	(632)	(438)
Dividend and dividend equivalents paid	(3,000)	(85,979)
Common stock repurchases and related expenses	(116,089)	(144,919)
Other, net	(306)	(116)
Net cash used in financing activities	(120,027)	(231,452)
Net increase (decrease) in cash and cash equivalents and restricted cash	7,188	(81,956)
Cash and cash equivalents and restricted cash at beginning of period	384,125	355,394
Cash and cash equivalents and restricted cash at end of period	391,313	273,438
Supplemental disclosure of noncash investing and financing activities:
Financing leases and capital financing - equipment	0	1,753
Accrued capital expenditures	14,525	13,703
Accrued common stock repurchases and stock repurchase excise tax	4,665	5,995
Accrued dividend payable	525	8,973
Reconciliation of Cash and Cash Equivalents and Restricted Cash
Cash and cash equivalents	269,386	222,507
Long-term restricted cash	121,927	50,931
Total cash and cash equivalents and restricted cash shown in the Condensed Consolidated Statements of Cash Flows	$ 391,313	$ 273,438

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive (Loss) Income	Treasury Stock at Cost	Retained Earnings
Beginning balance at Dec. 31, 2022	$ 1,429,755	$ 217	$ 815,442	$ (12,162)	$ (649,061)	$ 1,275,319
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	270,771					270,771
Other comprehensive income (loss), net	(488)			(488)
Stock-based compensation, issuance of common stock for share vesting, and common stock reissuances	3,034	1	(3,444)		6,477
Common stock repurchases and related expenses	(148,973)				(148,973)
Warrants exercises	1,301		1,301
Cash dividend and dividend equivalents declared ($0.44 per share)	(6,825)					(6,825)
Ending balance at Mar. 31, 2023	1,548,575	218	813,299	(12,650)	(791,557)	1,539,265
Beginning balance at Dec. 31, 2023	1,573,928	221	834,482	(40,587)	(1,189,715)	1,969,527
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	126,995					126,995
Other comprehensive income (loss), net	750			750
Stock-based compensation, issuance of common stock for share vesting, and common stock reissuances	2,769	3	(3,946)		6,712
Common stock repurchases and related expenses	(112,636)				(112,636)
Dividend equivalents	(662)					(662)
Ending balance at Mar. 31, 2024	$ 1,591,144	$ 224	$ 830,536	$ (39,837)	$ (1,295,639)	$ 2,095,860

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) (Parenthetical)	3 Months Ended
	Mar. 31, 2023 $ / shares
Statement of Stockholders' Equity [Abstract]
Cash dividend and dividend equivalents declared per share (in dollars per share)	$ 0.44

Business and Basis of Presentation	3 Months Ended
Business and Basis of Presentation	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business and Basis of Presentation	Business and Basis of Presentation Business Alpha is a Tennessee-based mining company with operations in Virginia and West Virginia. With customers across the globe, high-quality reserves and significant port capacity, Alpha is a leading U.S. supplier of metallurgical coal products for the steel industry. Basis of Presentation Together, the condensed consolidated statements of operations, comprehensive income, balance sheets, cash flows and stockholders’ equity for the Company are referred to as the “Condensed Consolidated Financial Statements.” The Condensed Consolidated Financial Statements are also referenced across periods as “Condensed Consolidated Statements of Operations,” “Condensed Consolidated Statements of Comprehensive Income,” “Condensed Consolidated Balance Sheets,” “Condensed Consolidated Statements of Cash Flows,” and “Condensed Consolidated Statements of Stockholders’ Equity.” The Condensed Consolidated Financial Statements include all wholly-owned subsidiaries’ results of operations for the three months ended March 31, 2024 and 2023. All significant intercompany transactions have been eliminated in consolidation. The accompanying interim Condensed Consolidated Financial Statements are unaudited and have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) and in accordance with the rules and regulations of the United States Securities and Exchange Commission (“SEC”) for Form 10-Q. Such rules and regulations allow the omission of certain information and footnote disclosures normally included in the financial statements prepared in accordance with U.S. GAAP as long as the financial statements are not misleading. In the opinion of management, these interim Condensed Consolidated Financial Statements reflect all normal and recurring adjustments necessary for a fair presentation of the results for the periods presented. Results of operations for the three months ended March 31, 2024 are not necessarily indicative of the results to be expected for the year ending December 31, 2024 or any other period. These interim Condensed Consolidated Financial Statements should be read in conjunction with the Company’s Consolidated Financial Statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023. Reclassifications For comparability purposes, certain immaterial segment information for the three months ended March 31, 2023 in the notes to the Condensed Consolidated Financials Statements has been recast to conform to the current year presentation. Refer to Note 15. Recent Accounting Guidance Refer to the Recent Accounting Guidance section of Note 2 contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023.

Revenue

3 Months Ended

Mar. 31, 2024

Revenue from Contract with Customer [Abstract]

Revenue

Disaggregation of Revenue from Contracts with Customers


	Three Months Ended March 31,
	2024		2023
Export met coal revenues	$	672,739	$	647,932
Export thermal coal revenues	28,562		30,199
Total export coal revenues	$	701,301	$	678,131

Domestic met coal revenues	$	153,295	$	210,047
Domestic thermal coal revenues	6,687		18,520
Total domestic coal revenues	$	159,982	$	228,567

Total met coal revenues	$	826,034	$	857,979
Total thermal coal revenues	35,249		48,719
Total coal revenues	$	861,283	$	906,698

Performance Obligations

The following table includes estimated revenue expected to be recognized in the future related to performance obligations that are unsatisfied as of March 31, 2024:


	Remainder of 2024		2025		2026		2027		2028		Total
Estimated coal revenues	$	85,016	$	—	$	—	$	—	$	—	$	85,016

Accumulated Other Comprehensive Loss

3 Months Ended

Mar. 31, 2024

Equity [Abstract]

Accumulated Other Comprehensive Loss

The following tables summarize the changes to accumulated other comprehensive loss during the three months ended March 31, 2024 and 2023:


	Balance January 1, 2024		Other comprehensive income (loss) before reclassifications		Amounts reclassified from accumulated other comprehensive loss		Balance March 31, 2024
Employee benefit costs	$	(40,587)	$	—	$	750	$	(39,837)


	Balance January 1, 2023		Other comprehensive income (loss) before reclassifications		Amounts reclassified from accumulated other comprehensive loss		Balance March 31, 2023
Employee benefit costs	$	(12,162)	$	—	$	(488)	$	(12,650)


Details about accumulated other comprehensive loss components	Amounts reclassified from accumulated other comprehensive loss				Affected line item in the Condensed Consolidated Statements of Operations
	Three Months Ended March 31,
	2024		2023
Employee benefit costs:
Amortization of net actuarial loss (gain) (1)	$	964	$	(627)		Miscellaneous (expense) income, net
Income tax (expense) benefit	(214)		139			Income tax expense
Total, net of income tax	$	750	$	(488)

(1) These accumulated other comprehensive loss components are included in the computation of net periodic benefit costs for certain employee benefit plans. Refer to Note 12.

Net Income Per Share

3 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Net Income Per Share

The following table presents the net income per common share for the three months ended March 31, 2024 and 2023:


	Three Months Ended March 31,
	2024		2023
Basic
Net income	$	126,995	$	270,771
Weighted average common shares outstanding - basic	13,002,127		15,266,895
Net income per common share - basic	$	9.77	$	17.74

Diluted
Weighted average common shares outstanding - basic	13,002,127		15,266,895
Dilutive effect of warrants	—		158,304
Dilutive effect of stock options	—		1,999
Dilutive effect of other stock-based instruments	234,469		489,180
Weighted average common shares outstanding - diluted	13,236,596		15,916,378
Net income per common share - diluted	$	9.59	$	17.01

Inventories, net

3 Months Ended

Mar. 31, 2024

Inventory Disclosure [Abstract]

Inventories, net

Inventories, net consisted of the following:


	March 31, 2024		December 31, 2023
Raw coal	$	51,602	$	52,508
Saleable coal	130,071		120,000
Materials, supplies and other, net	64,360		58,836
Total inventories, net	$	246,033	$	231,344

Capital Stock	3 Months Ended
Capital Stock	Mar. 31, 2024
Equity [Abstract]
Capital Stock	Capital Stock Share Repurchase Program The total authorization to repurchase the Company’s stock under the existing common share repurchase program adopted by the Company’s Board of Directors (the “Board”) on March 4, 2022 is $1,500,000. As of March 31, 2024, the Company had repurchased an aggregate of 6,630,535 shares under the plan for an aggregate purchase price of approximately $1,098,916 (comprised of $1,098,717 of share repurchases and $199 of related fees). The Company has also accrued a stock repurchase excise tax of $4,665 related to the share repurchase program as of March 31, 2024, which is recorded in treasury stock at cost.

Accrued Expenses and Other Current Liabilities

3 Months Ended

Mar. 31, 2024

Payables and Accruals [Abstract]

Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consisted of the following:


	March 31, 2024		December 31, 2023
Wages and benefits	$	59,867	$	62,811
Workers’ compensation	10,467		10,482
Black lung	10,687		10,687
Taxes other than income taxes	31,998		31,236
Asset retirement obligations	38,713		38,915
Dividend payable	427		2,342
Income taxes payable	5,050		—
Freight accrual	21,837		8,461
Other	7,398		12,578
Total accrued expenses and other current liabilities	$	186,444	$	177,512

Long-Term Debt

3 Months Ended

Mar. 31, 2024

Debt Disclosure [Abstract]

Long-Term Debt

Long-term debt consisted of the following:


	March 31, 2024		December 31, 2023
Notes payable and other	$	4,456	$	5,097

Financing leases	4,970		5,277

Total long-term debt	9,426		10,374
Less current portion	(3,392)		(3,582)
Long-term debt, net of current portion	$	6,034	$	6,792

ABL Agreement

Asset Retirement Obligations

3 Months Ended

Mar. 31, 2024

Asset Retirement Obligation Disclosure [Abstract]

Asset Retirement Obligations

The following table summarizes the changes in asset retirement obligations for the three months ended March 31, 2024:


Total asset retirement obligations at December 31, 2023	$	205,424
Accretion for the period	6,143
Sites added during the period	5,381
Revisions in estimated cash flows	79
Expenditures for the period	(5,556)
Total asset retirement obligations at March 31, 2024	211,471
Less current portion (1)	(38,713)
Long-term portion	$	172,758

(1) Included within Accrued expenses and other current liabilities on the Company’s Condensed Consolidated Balance Sheets. Refer to Note 7.

Fair Value of Financial Instruments and Fair Value Measurements

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments and Fair Value Measurements

The estimated fair values of financial instruments are determined based on relevant market information. These estimates involve uncertainty and cannot be determined with precision.


	March 31, 2024
	Total Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Trading securities	$	38,055	$	—	$	38,055	$	—


	December 31, 2023
	Total Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Trading securities	$	40,597	$	—	$	40,597	$	—

The following methods and assumptions were used to estimate the fair values of the assets and liabilities in the tables above:

Level 2 Fair Value Measurements

Income Taxes	3 Months Ended
Income Taxes	Mar. 31, 2024
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes For the three months ended March 31, 2024, the Company recorded income tax expense of $14,165 on income before income taxes of $141,160. The income tax expense differs from the expected statutory amount primarily due to the permanent impact of percentage depletion, foreign-derived intangible income deductions, and stock compensation, partially offset by the impact of non-deductible compensation and state income taxes, net of federal impact. For the three months ended March 31, 2023, the Company recorded income tax expense of $42,411 on income before income taxes of $313,182. The income tax expense differs from the expected statutory amount primarily due to the permanent impact of percentage depletion and foreign-derived intangible income deductions, partially offset by the impact of state income taxes, net of federal impact.

Employee Benefit Plans

3 Months Ended

Mar. 31, 2024

Employee Benefit Plans

Pension

The following table details the components of the net periodic benefit cost for pension obligations:


	Three Months Ended March 31,
	2024		2023
Interest cost	$	5,749	$	5,958
Expected return on plan assets	(5,742)		(5,484)
Amortization of net actuarial loss	298		137

Net periodic benefit cost	$	305	$	611

The Company expects to pay $12,320 in minimum required contributions to the pension plan in 2024.

Black Lung

The following table details the components of the net periodic benefit cost for black lung obligations:


	Three Months Ended March 31,
	2024		2023
Service cost	$	601	$	513
Interest cost	1,307		1,165
Expected return on plan assets	(13)		(13)
Amortization of net actuarial loss (gain)	721		(708)
Net periodic benefit cost	$	2,616	$	957

Related Party Transactions	3 Months Ended
Related Party Transactions	Mar. 31, 2024
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions There were no material related party transactions for the three months ended March 31, 2024 or 2023.

Commitments and Contingencies

3 Months Ended

Mar. 31, 2024

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

(a) General

(b) Commitments and Contingencies

Commitments

Other Commitments

Contingencies

surety bonds for post-mining reclamation and workers’ compensation obligations. The Company can also use bank LCs to collateralize certain obligations and commitments.

As of March 31, 2024, the Company had $61,282 LCs outstanding under the ABL Facility.

Amounts included in restricted cash provide collateral to secure the following obligations:


	March 31, 2024		December 31, 2023
Workers’ compensation and black lung obligations	$	107,208	$	104,998
Reclamation-related obligations	3,922		685
Financial payments and other performance obligations	10,797		10,235
Total restricted cash	$	121,927	$	115,918

Amounts included in restricted investments provide collateral to secure the following obligations:


	March 31, 2024		December 31, 2023
Workers’ compensation obligations	$	3,279	$	2,514
Reclamation-related obligations	30,305		33,173
Financial payments and other performance obligations	4,471		4,910
Total restricted investments (1)	$	38,055	$	40,597

(1) Classified as long-term trading securities as of March 31, 2024 and December 31, 2023.

Amounts included in deposits provide collateral to secure the following obligations:


	March 31, 2024		December 31, 2023
Workers’ compensation obligations	$	4,500	$	4,500

Financial payments and other performance obligations	—		32
Other operating agreements	847		850
Total deposits	5,347		5,382
Less current portion	—		(32)
Total deposits, net of current portion (1)	$	5,347	$	5,350

(1) Included within Other non-current assets on the Company’s Condensed Consolidated Balance Sheets.

DCMWC Reauthorization Process

(d) Legal Proceedings

Segment Information

3 Months Ended

Mar. 31, 2024

Segment Reporting [Abstract]

Segment Information

Segment information and reconciliations to consolidated amounts for the three months ended March 31, 2024 and 2023 are as follows:


	Three Months Ended March 31,
	2024		2023
Coal revenues - Met	$	861,283	$	887,007
Other revenues - Met	2,789		4,537
Total revenues - Met	$	864,072	$	891,544
Coal revenues - All Other	—		19,691
Total revenues	$	864,072	$	911,235

No asset information has been disclosed as the CODM does not regularly review asset information by segment.

A reconciliation of net income to Adjusted EBITDA for the three months ended March 31, 2024 and 2023 is as follows:


	Three Months Ended March 31,
	2024		2023
Net income	$	126,995	$	270,771
Interest expense	1,086		1,720
Interest income	(3,971)		(1,518)
Income tax expense	14,165		42,411
Depreciation, depletion, and amortization	40,701		29,423
Non-cash stock compensation expense	2,769		3,034
Accretion on asset retirement obligations	6,143		6,377
Amortization of acquired intangibles, net	1,675		2,197
Adjusted EBITDA	$	189,563	$	354,415

Adjusted EBITDA - Met	$	189,563	$	350,046
Adjusted EBITDA - All Other	—		4,369
Total Adjusted EBITDA	$	189,563	$	354,415


	Three Months Ended March 31,
	2024			2023
Total coal revenues	$	861,283		$	906,698
Total revenues	$	864,072		$	911,235
Export coal revenues	$	701,301		$	678,131
Export coal revenues as % of total coal revenues	81		%	75		%
Countries with export coal revenue exceeding 10% of total revenues	India, Brazil			India
Top customer as % of total revenues	16		%	17		%
Top 10 customers as % of total revenues	81		%	78		%
Number of customers exceeding 10% of total revenues	4			4


	As of March 31,
	2024	2023
Number of customers exceeding 10% of total trade accounts receivable, net	3	3

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended
Pay vs Performance Disclosure - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
Pay vs Performance Disclosure
Net income	$ 126,995	$ 270,771

Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Mar. 31, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Business and Basis of Presentation (Policies)	3 Months Ended
Business and Basis of Presentation (Policies)	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation Together, the condensed consolidated statements of operations, comprehensive income, balance sheets, cash flows and stockholders’ equity for the Company are referred to as the “Condensed Consolidated Financial Statements.” The Condensed Consolidated Financial Statements are also referenced across periods as “Condensed Consolidated Statements of Operations,” “Condensed Consolidated Statements of Comprehensive Income,” “Condensed Consolidated Balance Sheets,” “Condensed Consolidated Statements of Cash Flows,” and “Condensed Consolidated Statements of Stockholders’ Equity.” The Condensed Consolidated Financial Statements include all wholly-owned subsidiaries’ results of operations for the three months ended March 31, 2024 and 2023. All significant intercompany transactions have been eliminated in consolidation. The accompanying interim Condensed Consolidated Financial Statements are unaudited and have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) and in accordance with the rules and regulations of the United States Securities and Exchange Commission (“SEC”) for Form 10-Q. Such rules and regulations allow the omission of certain information and footnote disclosures normally included in the financial statements prepared in accordance with U.S. GAAP as long as the financial statements are not misleading. In the opinion of management, these interim Condensed Consolidated Financial Statements reflect all normal and recurring adjustments necessary for a fair presentation of the results for the periods presented. Results of operations for the three months ended March 31, 2024 are not necessarily indicative of the results to be expected for the year ending December 31, 2024 or any other period. These interim Condensed Consolidated Financial Statements should be read in conjunction with the Company’s Consolidated Financial Statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023.
Reclassifications	Reclassifications For comparability purposes, certain immaterial segment information for the three months ended March 31, 2023 in the notes to the Condensed Consolidated Financials Statements has been recast to conform to the current year presentation. Refer to Note 15.
Recent Accounting Guidance	Recent Accounting Guidance Refer to the Recent Accounting Guidance section of Note 2 contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023.

Revenue (Tables)

3 Months Ended

Mar. 31, 2024

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

The following tables disaggregate the Company’s coal revenues by product category and by market to depict how the nature, amount, timing, and uncertainty of the Company’s coal revenues and cash flows are affected by economic factors:


	Three Months Ended March 31,
	2024		2023
Export met coal revenues	$	672,739	$	647,932
Export thermal coal revenues	28,562		30,199
Total export coal revenues	$	701,301	$	678,131

Domestic met coal revenues	$	153,295	$	210,047
Domestic thermal coal revenues	6,687		18,520
Total domestic coal revenues	$	159,982	$	228,567

Total met coal revenues	$	826,034	$	857,979
Total thermal coal revenues	35,249		48,719
Total coal revenues	$	861,283	$	906,698

Schedule of Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction

The following table includes estimated revenue expected to be recognized in the future related to performance obligations that are unsatisfied as of March 31, 2024:


	Remainder of 2024		2025		2026		2027		2028		Total
Estimated coal revenues	$	85,016	$	—	$	—	$	—	$	—	$	85,016

Accumulated Other Comprehensive Loss (Tables)

3 Months Ended

Mar. 31, 2024

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Loss

The following tables summarize the changes to accumulated other comprehensive loss during the three months ended March 31, 2024 and 2023:


	Balance January 1, 2024		Other comprehensive income (loss) before reclassifications		Amounts reclassified from accumulated other comprehensive loss		Balance March 31, 2024
Employee benefit costs	$	(40,587)	$	—	$	750	$	(39,837)


	Balance January 1, 2023		Other comprehensive income (loss) before reclassifications		Amounts reclassified from accumulated other comprehensive loss		Balance March 31, 2023
Employee benefit costs	$	(12,162)	$	—	$	(488)	$	(12,650)


Details about accumulated other comprehensive loss components	Amounts reclassified from accumulated other comprehensive loss				Affected line item in the Condensed Consolidated Statements of Operations
	Three Months Ended March 31,
	2024		2023
Employee benefit costs:
Amortization of net actuarial loss (gain) (1)	$	964	$	(627)		Miscellaneous (expense) income, net
Income tax (expense) benefit	(214)		139			Income tax expense
Total, net of income tax	$	750	$	(488)

(1) These accumulated other comprehensive loss components are included in the computation of net periodic benefit costs for certain employee benefit plans. Refer to Note 12.

Net Income Per Share (Tables)

3 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Schedule of Net Income Per Common Share, Basic and Diluted

The following table presents the net income per common share for the three months ended March 31, 2024 and 2023:


	Three Months Ended March 31,
	2024		2023
Basic
Net income	$	126,995	$	270,771
Weighted average common shares outstanding - basic	13,002,127		15,266,895
Net income per common share - basic	$	9.77	$	17.74

Diluted
Weighted average common shares outstanding - basic	13,002,127		15,266,895
Dilutive effect of warrants	—		158,304
Dilutive effect of stock options	—		1,999
Dilutive effect of other stock-based instruments	234,469		489,180
Weighted average common shares outstanding - diluted	13,236,596		15,916,378
Net income per common share - diluted	$	9.59	$	17.01

Inventories, net (Tables)

3 Months Ended

Mar. 31, 2024

Inventory Disclosure [Abstract]

Schedule of Inventories, Net

Inventories, net consisted of the following:


	March 31, 2024		December 31, 2023
Raw coal	$	51,602	$	52,508
Saleable coal	130,071		120,000
Materials, supplies and other, net	64,360		58,836
Total inventories, net	$	246,033	$	231,344

Accrued Expenses and Other Current Liabilities (Tables)

3 Months Ended

Mar. 31, 2024

Payables and Accruals [Abstract]

Schedule of Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consisted of the following:


	March 31, 2024		December 31, 2023
Wages and benefits	$	59,867	$	62,811
Workers’ compensation	10,467		10,482
Black lung	10,687		10,687
Taxes other than income taxes	31,998		31,236
Asset retirement obligations	38,713		38,915
Dividend payable	427		2,342
Income taxes payable	5,050		—
Freight accrual	21,837		8,461
Other	7,398		12,578
Total accrued expenses and other current liabilities	$	186,444	$	177,512

Long-Term Debt (Tables)

3 Months Ended

Mar. 31, 2024

Debt Disclosure [Abstract]

Schedule of Long-term Debt

Long-term debt consisted of the following:


	March 31, 2024		December 31, 2023
Notes payable and other	$	4,456	$	5,097

Financing leases	4,970		5,277

Total long-term debt	9,426		10,374
Less current portion	(3,392)		(3,582)
Long-term debt, net of current portion	$	6,034	$	6,792

Asset Retirement Obligations (Tables)

3 Months Ended

Mar. 31, 2024

Asset Retirement Obligation Disclosure [Abstract]

Schedule of Changes in Asset Retirement Obligations

The following table summarizes the changes in asset retirement obligations for the three months ended March 31, 2024:


Total asset retirement obligations at December 31, 2023	$	205,424
Accretion for the period	6,143
Sites added during the period	5,381
Revisions in estimated cash flows	79
Expenditures for the period	(5,556)
Total asset retirement obligations at March 31, 2024	211,471
Less current portion (1)	(38,713)
Long-term portion	$	172,758

(1) Included within Accrued expenses and other current liabilities on the Company’s Condensed Consolidated Balance Sheets. Refer to Note 7.

Fair Value of Financial Instruments and Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis


	March 31, 2024
	Total Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Trading securities	$	38,055	$	—	$	38,055	$	—


	December 31, 2023
	Total Fair Value		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Trading securities	$	40,597	$	—	$	40,597	$	—

Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2024

Schedule of Net Periodic Benefit Cost

The following table details the components of the net periodic benefit cost for pension obligations:


	Three Months Ended March 31,
	2024		2023
Interest cost	$	5,749	$	5,958
Expected return on plan assets	(5,742)		(5,484)
Amortization of net actuarial loss	298		137

Net periodic benefit cost	$	305	$	611

The following table details the components of the net periodic benefit cost for black lung obligations:


	Three Months Ended March 31,
	2024		2023
Service cost	$	601	$	513
Interest cost	1,307		1,165
Expected return on plan assets	(13)		(13)
Amortization of net actuarial loss (gain)	721		(708)
Net periodic benefit cost	$	2,616	$	957

Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2024

Commitments and Contingencies Disclosure [Abstract]

Schedule of Restricted Cash Deposits

Amounts included in restricted cash provide collateral to secure the following obligations:


	March 31, 2024		December 31, 2023
Workers’ compensation and black lung obligations	$	107,208	$	104,998
Reclamation-related obligations	3,922		685
Financial payments and other performance obligations	10,797		10,235
Total restricted cash	$	121,927	$	115,918

Schedule of Restricted Investments and Deposit Assets

Amounts included in restricted investments provide collateral to secure the following obligations:


	March 31, 2024		December 31, 2023
Workers’ compensation obligations	$	3,279	$	2,514
Reclamation-related obligations	30,305		33,173
Financial payments and other performance obligations	4,471		4,910
Total restricted investments (1)	$	38,055	$	40,597

(1) Classified as long-term trading securities as of March 31, 2024 and December 31, 2023.

Amounts included in deposits provide collateral to secure the following obligations:


	March 31, 2024		December 31, 2023
Workers’ compensation obligations	$	4,500	$	4,500

Financial payments and other performance obligations	—		32
Other operating agreements	847		850
Total deposits	5,347		5,382
Less current portion	—		(32)
Total deposits, net of current portion (1)	$	5,347	$	5,350

(1) Included within Other non-current assets on the Company’s Condensed Consolidated Balance Sheets.

Segment Information (Tables)

3 Months Ended

Mar. 31, 2024

Segment Reporting [Abstract]

Schedule of Segment Operating Results and Capital Expenditures

Segment information and reconciliations to consolidated amounts for the three months ended March 31, 2024 and 2023 are as follows:


	Three Months Ended March 31,
	2024		2023
Coal revenues - Met	$	861,283	$	887,007
Other revenues - Met	2,789		4,537
Total revenues - Met	$	864,072	$	891,544
Coal revenues - All Other	—		19,691
Total revenues	$	864,072	$	911,235

The following tables present additional information on our revenues and top customers:


	Three Months Ended March 31,
	2024			2023
Total coal revenues	$	861,283		$	906,698
Total revenues	$	864,072		$	911,235
Export coal revenues	$	701,301		$	678,131
Export coal revenues as % of total coal revenues	81		%	75		%
Countries with export coal revenue exceeding 10% of total revenues	India, Brazil			India
Top customer as % of total revenues	16		%	17		%
Top 10 customers as % of total revenues	81		%	78		%
Number of customers exceeding 10% of total revenues	4			4


	As of March 31,
	2024	2023
Number of customers exceeding 10% of total trade accounts receivable, net	3	3

Schedule of Reconciliation of Net Income to Adjusted EBITDA

A reconciliation of net income to Adjusted EBITDA for the three months ended March 31, 2024 and 2023 is as follows:


	Three Months Ended March 31,
	2024		2023
Net income	$	126,995	$	270,771
Interest expense	1,086		1,720
Interest income	(3,971)		(1,518)
Income tax expense	14,165		42,411
Depreciation, depletion, and amortization	40,701		29,423
Non-cash stock compensation expense	2,769		3,034
Accretion on asset retirement obligations	6,143		6,377
Amortization of acquired intangibles, net	1,675		2,197
Adjusted EBITDA	$	189,563	$	354,415

Adjusted EBITDA - Met	$	189,563	$	350,046
Adjusted EBITDA - All Other	—		4,369
Total Adjusted EBITDA	$	189,563	$	354,415

Revenue - Disaggregation of Revenue by Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Revenues	$ 861,283	$ 906,698
Coal
Disaggregation of Revenue [Line Items]
Revenues	861,283	906,698
Coal \| Export
Disaggregation of Revenue [Line Items]
Revenues	701,301	678,131
Coal \| Domestic
Disaggregation of Revenue [Line Items]
Revenues	159,982	228,567
Coal, Met
Disaggregation of Revenue [Line Items]
Revenues	826,034	857,979
Coal, Met \| Export
Disaggregation of Revenue [Line Items]
Revenues	672,739	647,932
Coal, Met \| Domestic
Disaggregation of Revenue [Line Items]
Revenues	153,295	210,047
Coal, Thermal
Disaggregation of Revenue [Line Items]
Revenues	35,249	48,719
Coal, Thermal \| Export
Disaggregation of Revenue [Line Items]
Revenues	28,562	30,199
Coal, Thermal \| Domestic
Disaggregation of Revenue [Line Items]
Revenues	$ 6,687	$ 18,520

Revenue - Performance Obligations (Details) $ in Thousands	Mar. 31, 2024 USD ($)
Disaggregation of Revenue [Line Items]
Estimated coal revenues	$ 85,016
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-04-01
Disaggregation of Revenue [Line Items]
Estimated coal revenues	$ 85,016
Estimated coal revenues, satisfaction period	9 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Disaggregation of Revenue [Line Items]
Estimated coal revenues	$ 0
Estimated coal revenues, satisfaction period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Disaggregation of Revenue [Line Items]
Estimated coal revenues	$ 0
Estimated coal revenues, satisfaction period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Disaggregation of Revenue [Line Items]
Estimated coal revenues	$ 0
Estimated coal revenues, satisfaction period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-01-01
Disaggregation of Revenue [Line Items]
Estimated coal revenues	$ 0
Estimated coal revenues, satisfaction period	1 year

Accumulated Other Comprehensive Loss - Changes to Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 1,573,928	$ 1,429,755
Ending balance	1,591,144	1,548,575
Employee benefit costs
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(40,587)	(12,162)
Other comprehensive income (loss) before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive loss	750	(488)
Ending balance	$ (39,837)	$ (12,650)

Accumulated Other Comprehensive Loss - Summary of Amounts Reclassified (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Employee benefit costs:
Miscellaneous (expense) income, net	$ (1,963)	$ 631
Income tax expense	(14,165)	(42,411)
Net income	126,995	270,771
Amounts reclassified from accumulated other comprehensive loss \| Amortization of net actuarial loss (gain)
Employee benefit costs:
Miscellaneous (expense) income, net	964	(627)
Amounts reclassified from accumulated other comprehensive loss \| Employee benefit costs
Employee benefit costs:
Income tax expense	(214)	139
Net income	$ 750	$ (488)

Net Income Per Share - Narrative (Details) - shares	3 Months Ended
Net Income Per Share - Narrative (Details) - shares	Mar. 31, 2024	Mar. 31, 2023
Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)	0	0

Net Income Per Share - Net Income Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Basic
Net income	$ 126,995	$ 270,771
Weighted average common shares outstanding - basic (in shares)	13,002,127	15,266,895
Net income per common share - basic (in dollars per share)	$ 9.77	$ 17.74
Diluted
Weighted average common shares outstanding - basic (in shares)	13,002,127	15,266,895
Dilutive effect of warrants (in shares)	0	158,304
Weighted average common shares outstanding - diluted (in shares)	13,236,596	15,916,378
Net income per common share - diluted (in dollars per share)	$ 9.59	$ 17.01
Stock Options
Diluted
Dilutive effect of share-based payment awards (in shares)	0	1,999
Other Stock-Based Instruments
Diluted
Dilutive effect of share-based payment awards (in shares)	234,469	489,180

Inventories, net (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Inventory Disclosure [Abstract]
Raw coal	$ 51,602	$ 52,508
Saleable coal	130,071	120,000
Materials, supplies and other, net	64,360	58,836
Total inventories, net	$ 246,033	$ 231,344

Capital Stock (Details) - USD ($)	25 Months Ended
Capital Stock (Details) - USD ($)	Mar. 31, 2024	Mar. 04, 2022
Equity [Abstract]
Authorized share repurchases		$ 1,500,000,000
Number of shares repurchased (in shares)	6,630,535
Total share repurchase price	$ 1,098,916,000
Value of shares repurchased	1,098,717,000
Shares repurchased, fees	199,000
Stock repurchase program exercise tax	$ 4,665,000

Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Payables and Accruals [Abstract]
Wages and benefits	$ 59,867	$ 62,811
Workers’ compensation	10,467	10,482
Black lung	10,687	10,687
Taxes other than income taxes	31,998	31,236
Asset retirement obligations	38,713	38,915
Dividend payable	427	2,342
Income taxes payable	5,050	0
Freight accrual	21,837	8,461
Other	7,398	12,578
Total accrued expenses and other current liabilities	$ 186,444	$ 177,512

Long-Term Debt - Long-Term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Debt Disclosure [Abstract]
Notes payable and other	$ 4,456	$ 5,097
Financing leases	4,970	5,277
Total long-term debt	9,426	10,374
Less current portion	(3,392)	(3,582)
Long-term debt, net of current portion	$ 6,034	$ 6,792

Long-Term Debt - ABL Agreement (Details) - ABL Facility - USD ($)	Mar. 31, 2024	Dec. 31, 2023	Oct. 27, 2023
Debt Instrument [Line Items]
Amounts borrowed	$ 0	$ 0
Letters of credit outstanding	$ 61,282,000	$ 60,896,000
Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 155,000,000
Minimum liquidity threshold			$ 75,000,000

Asset Retirement Obligations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Total asset retirement obligations at December 31, 2023	$ 205,424
Accretion for the period	6,143	$ 6,377
Sites added during the period	5,381
Revisions in estimated cash flows	79
Expenditures for the period	(5,556)
Total asset retirement obligations at March 31, 2024	211,471		$ 205,424
Less current portion	(38,713)		(38,915)
Long-term portion	$ 172,758		$ 166,509

Fair Value of Financial Instruments and Fair Value Measurements - Fair Value on Recurring Basis (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Trading securities	$ 38,055	$ 40,597
Quoted Prices in Active Markets (Level 1)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Trading securities	0	0
Significant Other Observable Inputs (Level 2)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Trading securities	38,055	40,597
Significant Unobservable Inputs (Level 3)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Trading securities	$ 0	$ 0

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
Income Tax Disclosure [Abstract]
Income tax expense	$ 14,165	$ 42,411
Income before income taxes	$ 141,160	$ 313,182

Employee Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended
Employee Benefit Plans (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
Pension
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest cost	$ 5,749	$ 5,958
Expected return on plan assets	(5,742)	(5,484)
Amortization of net actuarial loss (gain)	298	137
Net periodic benefit cost	305	611
Expected minimum required contributions	12,320
Black Lung
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	601	513
Interest cost	1,307	1,165
Expected return on plan assets	(13)	(13)
Amortization of net actuarial loss (gain)	721	(708)
Net periodic benefit cost	$ 2,616	$ 957

Commitments and Contingencies - Narrative (Details) tonOfCoal in Thousands, $ in Thousands	1 Months Ended
	Apr. 30, 2024 tonOfCoal	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Jan. 31, 2023 USD ($)	Feb. 10, 2022 USD ($)	Feb. 21, 2020 USD ($)	Feb. 20, 2020 USD ($)
Subsequent Event
Long-term Purchase Commitment [Line Items]
Arrangement, term	3 years
DTA Funding
Long-term Purchase Commitment [Line Items]
Minimum royalty obligations, remainder of fiscal year- 2024		$ 40,000
Minimum royalty obligations, year one		25,000
Minimum royalty obligations, year two		25,000
Minimum royalty obligations, year three		25,000
Minimum royalty obligations, year four		25,000
Minimum royalty obligations, year five		25,000
Minimum royalty obligations, after year five		25,000
Minimum \| Subsequent Event
Long-term Purchase Commitment [Line Items]
Number of tons of coal allowed to be loaded \| tonOfCoal	1,200
Maximum \| Subsequent Event
Long-term Purchase Commitment [Line Items]
Number of tons of coal allowed to be loaded \| tonOfCoal	2,000
Black Lung
Long-term Purchase Commitment [Line Items]
Collateral for black lung obligations					$ 10,000	$ 65,700	$ 2,600
Black Lung \| Minimum
Long-term Purchase Commitment [Line Items]
Collateral for black lung obligations				$ 80,000
Black Lung \| Maximum
Long-term Purchase Commitment [Line Items]
Collateral for black lung obligations				$ 100,000
Surety Bond
Long-term Purchase Commitment [Line Items]
Outstanding surety bonds		177,588
Reclamation-Related Obligations \| Collateral Pledged
Long-term Purchase Commitment [Line Items]
Restricted cash, restricted investments, and deposits		34,227
ABL Facility
Long-term Purchase Commitment [Line Items]
Letters of credit outstanding		$ 61,282	$ 60,896

Commitments and Contingencies - Restricted Cash Deposits (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Long-term Purchase Commitment [Line Items]
Total restricted cash	$ 121,927	$ 115,918
Workers’ compensation and black lung obligations
Long-term Purchase Commitment [Line Items]
Total restricted cash	107,208	104,998
Reclamation-related obligations
Long-term Purchase Commitment [Line Items]
Total restricted cash	3,922	685
Financial payments and other performance obligations
Long-term Purchase Commitment [Line Items]
Total restricted cash	$ 10,797	$ 10,235

Commitments and Contingencies - Restricted Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Long-term Purchase Commitment [Line Items]
Total restricted investments	$ 38,055	$ 40,597
Workers’ compensation and black lung obligations
Long-term Purchase Commitment [Line Items]
Total restricted investments	3,279	2,514
Reclamation-related obligations
Long-term Purchase Commitment [Line Items]
Total restricted investments	30,305	33,173
Financial payments and other performance obligations
Long-term Purchase Commitment [Line Items]
Total restricted investments	$ 4,471	$ 4,910

Commitments and Contingencies - Cash Deposits Held by Third Parties (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Long-term Purchase Commitment [Line Items]
Total deposits	$ 5,347	$ 5,382
Less current portion	0	(32)
Total deposits, net of current portion	5,347	5,350
Workers’ compensation and black lung obligations
Long-term Purchase Commitment [Line Items]
Total deposits	4,500	4,500
Financial payments and other performance obligations
Long-term Purchase Commitment [Line Items]
Total deposits	0	32
Other operating agreements
Long-term Purchase Commitment [Line Items]
Total deposits	$ 847	$ 850

Segment Information - Segment Information and Reconciliations to Consolidated Amounts (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Segment Reporting Information [Line Items]
Coal revenues	$ 861,283	$ 906,698
Other revenues	2,789	4,537
Total revenues	864,072	911,235
All Other
Segment Reporting Information [Line Items]
Coal revenues	0	19,691
Met \| Operating Segments
Segment Reporting Information [Line Items]
Coal revenues	861,283	887,007
Other revenues	2,789	4,537
Total revenues	$ 864,072	$ 891,544

Segment Information - Reconciliation of Net Income to Adjusted EBITDA (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net income	$ 126,995	$ 270,771
Interest expense	1,086	1,720
Interest income	(3,971)	(1,518)
Income tax expense	14,165	42,411
Depreciation, depletion, and amortization	40,701	29,423
Non-cash stock compensation expense	2,769	3,034
Accretion on asset retirement obligations	6,143	6,377
Amortization of acquired intangibles, net	1,675	2,197
Adjusted EBITDA	189,563	354,415
Operating Segments \| Met
Segment Reporting, Other Significant Reconciling Item [Line Items]
Adjusted EBITDA	189,563	350,046
All Other
Segment Reporting, Other Significant Reconciling Item [Line Items]
Adjusted EBITDA	$ 0	$ 4,369

Segment Information - Revenue from External Customers (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) customer	Mar. 31, 2023 USD ($) customer
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 861,283	$ 906,698
Total revenues	864,072	911,235
Export Coal Revenue
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 701,301	$ 678,131
Revenues \| Geographic Concentration Risk \| Export Coal Revenue
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk (as a percent)	81.00%	75.00%
Revenues \| Customer Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of customers exceeding 10% of total \| customer	4	4
Revenues \| Customer Concentration Risk \| Top Customer
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk (as a percent)	16.00%	17.00%
Revenues \| Customer Concentration Risk \| Top 10 Customers
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk (as a percent)	81.00%	78.00%
Accounts Receivable \| Customer Concentration Risk
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of customers exceeding 10% of total \| customer	3	3

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