Core Natural Resources, Inc.

Previous wording

The Company's discussion and analysis includes a comparison of the year ended December 31, 2024 to the year ended December 31, 2023. A similar discussion and analysis that compares the year ended December 31, 2023 to the fiscal year ended December 31, 2022 may be found in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” of our Form 10-K for the year ended December 31, 2023, which is incorporated herein by reference.

Current wording

The Company’s discussion and analysis includes a comparison of the year ended December 31, 2025 to the year ended December 31, 2024. A similar discussion and analysis that compares the year ended December 31, 2024 to the year ended December 31, 2023 may be found in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” of our Annual Report on Form 10-K for the year ended December 31, 2024, which is incorporated herein by reference.

Previous wording

On January 14, 2025, Core Natural Resources, Inc. (formerly known as CONSOL Energy Inc.), a Delaware corporation, completed its previously announced merger of equals transaction with Arch. Pursuant to the terms of the Merger Agreement, Merger Sub merged with and into Arch, with Arch continuing as the surviving corporation and as a wholly-owned subsidiary of the Company. In connection with the closing of the Merger, we and Arch now operate as a single combined company. See Note 25 - Subsequent Events in the Notes to the Consolidated Financial Statements in Item 8 of this Form 10-K for additional information.

Current wording

On January 14, 2025, the Company completed the Merger with Arch. Pursuant to the terms of the Merger Agreement, Merger Sub merged with and into Arch, with Arch continuing as the surviving corporation and as a wholly-owned subsidiary of the Company. See Note 2—Merger with Arch in the Notes to the Audited Consolidated Financial Statements in Item 8 of this Report for additional information.

Previous wording

On January 13, 2025, isolated combustion-related activity was reported at the Leer South mine, located in Barbour County, West Virginia. The Company temporarily sealed the Leer South mine's active longwall panel in order to extinguish such activity. The Company resumed development work with continuous miners in February 2025, and, based on collaborative, ongoing discussions with regulatory authorities, currently expects to resume longwall mining in mid-2025. The re-entry process will be multi-phased, beginning with the construction of ventilation controls followed by the resumption of continuous miner development.

Current wording

On January 13, 2025, a combustion-related activity was reported at the Leer South mine, located in Barbour County, West Virginia. The Company temporarily sealed the Leer South mine’s active longwall panel in order to extinguish such activity. The Company resumed development work with continuous miners in February 2025, and Company personnel and regulatory officials re-entered the sealed area of the mine on June 10, 2025. Thereafter, ventilation to the full mine was re-established, hydraulic pressure along the longwall face was restored and an extensive evaluation of the mine’s major equipment and infrastructure was conducted. As expected, the longwall suffered insignificant damage by the combustion event, and major components and systems remain in good condition. On June 26, 2025, the operating team found it necessary to evacuate the mine again and begin restoring pumpable seals to the affected area in the wake of an increase in carbon monoxide levels. In December 2025, the Company recovered the major longwall mining equipment, repositioned it and resumed longwall operations. Following the repositioning, the Company permanently sealed the affected area.

Previous wording

Our management team uses a variety of financial and operating metrics to analyze our performance. These metrics are significant factors in assessing our operating results and profitability. The metrics include: (i) adjusted EBITDA, a non-GAAP financial measure; (ii) coal production, sales volumes and average coal revenue per ton sold; (iii) cost of coal sold, a non-GAAP financial measure; (iv) cash cost of coal sold, a non-GAAP financial measure; (v) average cash cost of coal sold per ton, an operating ratio derived from non-GAAP financial measures; and (vi) average cash margin per ton sold, an operating ratio derived from non-GAAP financial measures.

Current wording

Our management team uses a variety of financial and operating metrics to analyze our performance. These metrics are significant factors in assessing our operating results and profitability. The metrics include: (i) coal production and sales volumes; (ii) realized coal revenue, a non-GAAP financial measure; (iii) realized coal revenue per ton sold, an operating ratio derived from non-GAAP financial measures; (iv) cash cost of coal sold, a non-GAAP financial measure; (v) cash cost of coal sold per ton, an operating ratio derived from non-GAAP financial measures; (vi) cash margin per ton sold, an operating ratio derived from non-GAAP financial measures, defined as realized coal revenue per ton sold less cash cost of coal sold per ton; and (vii) adjusted EBITDA, a non-GAAP financial measure.

Previous wording

We believe that adjusted EBITDA provides a helpful measure of comparing our operating performance with the performance of other companies that have different financing, capital structures and tax rates than ours. We believe cost of coal sold, cash cost of coal sold, average cash cost of coal sold per ton, and average cash margin per ton sold normalize the volatility contained within comparable GAAP measures by adjusting for certain non-operating or non-cash transactions. Each of these non-GAAP metrics are used as supplemental financial measures by management and by external users of our financial statements, such as investors, industry analysts, lenders and ratings agencies, to assess:

Current wording

We believe that realized coal revenue and realized coal revenue per ton sold better reflect our revenue for the quality of coal sold and our operating results by including all income from coal sales. We believe cash cost of coal sold, cash cost of coal sold per ton and cash margin per ton sold normalize the volatility contained within comparable measures prepared in accordance with accounting principles generally accepted in the U.S. (“GAAP”) by adjusting for certain non-operating or non-cash transactions. We believe that adjusted EBITDA provides a helpful measure of comparing our operating performance with the performance of other companies that have different financing, capital structures and tax rates than ours. Each of these non-GAAP measures are used as supplemental financial measures by management and by external users of our financial statements, such as investors, industry analysts, lenders and ratings agencies, to assess:

Previous wording

These non-GAAP financial measures should not be considered an alternative to operating and other costs, net income, or any other measure of financial performance presented in accordance with GAAP. These measures exclude some, but not all, items that affect measures presented in accordance with GAAP, and these measures and the way we calculate them may vary from those of other companies. As a result, the items presented below may not be comparable to similarly titled measures of other companies.

Current wording

These non-GAAP financial measures should not be considered an alternative to revenues, cost of sales, net income (loss) or any other measure of financial performance presented in accordance with GAAP. These measures exclude some, but not all, items that affect measures presented in accordance with GAAP, and these measures and the way we calculate them may vary from those of other companies. As a result, the items presented below may not be comparable to similarly titled measures of other companies.

Previous wording

We evaluate our cost of coal sold and cash cost of coal sold on an aggregate basis by segment, and our average cash cost of coal sold per ton on a per-ton basis. Cost of coal sold includes items such as direct operating costs, royalty and production taxes, direct administration costs, and depreciation, depletion and amortization costs on production assets. Cost of coal sold excludes any indirect costs and other costs not directly attributable to the production of coal. The cash cost of coal sold includes cost of coal sold less depreciation, depletion and amortization costs on production assets. We define average cash cost of coal sold per ton as cash cost of coal sold divided by tons sold. The GAAP measure most directly comparable to cost of coal sold, cash cost of coal sold and average cash cost of coal sold per ton is operating and other costs.

Current wording

We evaluate our cash cost of coal sold on an aggregate basis by segment and our cash cost of coal sold per ton on a per-ton basis. Cash cost of coal sold includes items such as direct operating costs, royalty and production taxes and direct administration costs, and excludes transportation costs, indirect costs, other costs not directly attributable to the production of coal and depreciation, depletion and amortization costs on production assets. We define cash cost of coal sold per ton as cash cost of coal sold divided by tons sold. The following tables present reconciliations by reportable segment of cash cost of coal sold and cash cost of coal sold per ton to cost of sales, the most directly comparable GAAP financial measure (in thousands, except per ton information):

Previous wording

We define adjusted EBITDA as (i) net income (loss) plus income taxes, interest expense and depreciation, depletion and amortization, as adjusted for (ii) certain non-cash items, such as stock-based compensation and loss on debt extinguishment and (iii) certain one-time transactions, such as merger-related expenses and certain litigation expenses for specific proceedings that arise outside of the ordinary course of our business. The GAAP measure most directly comparable to adjusted EBITDA is net income (loss).

Current wording

We define adjusted EBITDA as (i) net income (loss) plus income taxes, net interest expense and depreciation, depletion and amortization, as adjusted for (ii) certain non-cash items, such as loss on debt extinguishment and (iii) other adjustments, such as stock-based compensation and Merger-related expenses. Adjusted EBITDA may also be adjusted for items that may not reflect the trend of future results by excluding transactions that are not indicative of our operating performance or that arise outside of the ordinary course of our business. The following tables present reconciliations by reportable segment of adjusted EBITDA to net income (loss), the most directly comparable GAAP financial measure (in thousands):

Previous wording

Royalty income increased as a result of additional leased coal volumes related to overriding royalty agreements or coal reserve leases between the Company and third-party operators.

Current wording

Approximately $11 million of the increase in royalty income was due to royalty agreements acquired in the Merger. The remaining increase was largely attributable to additional leased coal volumes related to overriding royalty agreements or coal reserve leases between the Company and third-party operators.

Previous wording

The increase in other income was primarily related to advancements from the Company's insurance carriers related to a claim filed as a result of the Francis Scott Key Bridge collapse on March 26, 2024, which restricted vessel access to, and export capability from, the CONSOL Marine Terminal.

Current wording

In 2025, the Company settled with insurance carriers related to a claim filed as a result of the Francis Scott Key Bridge collapse on March 26, 2024, which restricted vessel access to, and export capability from, the Core Marine Terminal. The $9 million in the prior year period represents an advance payment related to this claim.

Previous wording

Contract assessment income includes penalties and fees levied against customers that did not meet the purchase obligations under their contracts with the Company. This amount also includes partial contract buyouts that involved negotiations with customers to reduce coal quantities that they otherwise were obligated to purchase under contracts in exchange for payment of certain fees to the Company, and did not impact forward contract terms.

Current wording

There were no contract assessments during the year ended December 31, 2025. Contract assessment income during the year ended December 31, 2024 was primarily the result of penalties and fees levied against customers that did not meet the purchase obligations under their contracts with the Company.

Previous wording

The 1974 UMWA Pension Plan litigation expense of $68 million represents the net present value of payments to be made over a five-year period to the United Mine Workers of America 1974 Pension Plan in accordance with a partial motion for summary judgment filed by the Superior Court of the State of Delaware on November 8, 2024. See Note 23 - Commitments and Contingent Liabilities in the Notes to the Consolidated Financial Statements in Item 8 of this Form 10-K for additional information.

Current wording

The 1974 UMWA Pension Plan litigation expense of $68 million represents the net present value of payments to be made over a five-year period to the United Mine Workers of America 1974 Pension Plan in accordance with a partial motion for summary judgment filed by the Supreme Court of the State of Delaware on November 8, 2024.

Previous wording

Employee-related legacy liability expense increased $10 million in the period-to-period comparison primarily due to the impact of changes in actuarial assumptions made at the beginning of each year. See Note 15 - Pension and Other Postretirement Benefit Plans and Note 16 - Coal Workers' Pneumoconiosis and Workers' Compensation in the Notes to the Consolidated Financial Statements in Item 8 of this Form 10-K for additional information.

Current wording

Non-service related pension and postretirement benefit costs increased $8 million in the period-to-period comparison, primarily due to the Merger as well as the impact of changes in actuarial assumptions made at the beginning of each year.

Previous wording

The Company evaluates the performance of its segments utilizing Adjusted EBITDA and various productivity metrics. Adjusted EBITDA measures the operating performance of the Company's segments and is used to allocate resources to the Company's segments. The following table presents results by reportable segment for each of the periods indicated.

Current wording

The Company evaluates the performance of its segments utilizing Adjusted EBITDA and various productivity metrics. Adjusted EBITDA measures the operating performance of the Company’s segments and is used to allocate resources to the Company’s segments. The following table presents results by reportable segment:

Previous wording

(1) Adjusted EBITDA is a non-GAAP financial measure, and average cash cost of coal sold per ton and average cash margin per ton sold are operating ratios derived from non-GAAP financial measures. See“How We Evaluate Our Operations - Reconciliation of Non-GAAP Financial Measures” above for an explanation and reconciliation of these amounts to the nearest GAAP measures.

Current wording

(a) Realized coal revenue per ton sold, cash cost of coal sold per ton and cash margin per ton sold are operating ratios derived from non-GAAP financial measures, and Adjusted EBITDA is a non-GAAP financial measure. See“How We Evaluate Our Operations - Reconciliation of Non-GAAP Financial Measures” above for definitions and reconciliations of these amounts to the most directly comparable GAAP measures.

Previous wording

As a result of the bridge collapse, throughput volumes and revenue from those volumes were halted until May 20, 2024. The Company used this downtime to perform several maintenance projects originally scheduled to occur during the summer shutdown period. Accordingly, adjusted EBITDA for the year ended December 31, 2024 was $57 million, compared to $80 million for the year ended December 31, 2023. Throughput volumes at the CONSOL Marine Terminal were 17.0 million tons for the year ended December 31, 2024, compared to 19.0 million tons for the year ended December 31, 2023. CONSOL Marine Terminal revenue was $88 million for the year ended December 31, 2024, compared to $106 million for the year ended December 31, 2023.

Current wording

Adjusted EBITDA for the year ended December 31, 2025 was $57 million, compared to $60 million for the year ended December 31, 2024. Throughput volumes at the Core Marine Terminal were 18.1 million tons for the year ended December 31, 2025, compared to 17.0 million tons for the year ended December 31, 2024. Core Marine Terminal revenue and costs were $88 million and $31 million, respectively, for the year ended December 31, 2025, compared to $88 million and $27 million, respectively, for the year ended December 31, 2024. The expected benefit of the increased throughput tons in the year ended December 31, 2025 was offset by lower pricing, which resulted in flat revenue and higher expenses compared to the prior year.

Previous wording

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make judgments, estimates and assumptions that affect reported amounts of assets and liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities in the Consolidated Financial Statements and at the date of the financial statements. See Note 1 - Significant Accounting Policies in the Notes to the Consolidated Financial Statements in Item 8 of this Form 10-K for further discussion. The Company bases its estimates on historical experience and on various other assumptions that it believes are reasonable under the circumstances, the results of which form the basis for making the judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. The Company evaluates its estimates on an on-going basis. Actual results could differ from those estimates upon subsequent resolution of identified matters. Management believes that the estimates utilized are reasonable. The following critical accounting policies are materially impacted by judgments, assumptions and estimates used in the preparation of the Consolidated Financial Statements.

Current wording

The preparation of financial statements in conformity with GAAP requires management to make judgments, estimates and assumptions that affect reported amounts of assets and liabilities, revenues and expenses and related disclosure of contingent assets and liabilities. See Note 1—Significant Accounting Policies in the Notes to the Audited Consolidated Financial Statements in Item 8 of this Report for further discussion. The Company bases its estimates on historical experience and on various other assumptions that it believes are reasonable under the circumstances, the results of which form the basis for making the judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. The Company evaluates its estimates on an on-going basis. Actual results could differ from those estimates upon subsequent resolution of identified matters. Management believes that the estimates utilized are reasonable. The following critical accounting policies are materially impacted by judgments, assumptions and estimates used in the preparation of the Consolidated Financial Statements in Item 8 of this Report.

Previous wording

The Surface Mining Control and Reclamation Act established operational, reclamation and closure standards for all aspects of surface mining as well as most aspects of deep mining. The Company accrues for the costs of current coal mine disturbance and final coal mine and gas well closure, including the cost of treating mine water discharge where necessary. Estimates of the Company's total asset retirement obligations, which are based upon permit requirements and Company engineering expertise related to these requirements, including the current portion, were approximately $248 million at December 31, 2024. This liability is reviewed annually, or when events and circumstances indicate an adjustment is necessary, by Company management and engineers. The estimated liability can significantly change if actual costs vary from assumptions or if governmental regulations change significantly.

Current wording

The SMCRA established operational, reclamation and closure standards for all aspects of surface mining as well as most aspects of deep mining. The Company accrues for the costs of current coal mine disturbance and final coal mine and gas well closure, including the cost of treating mine water discharge where necessary. Estimates of the Company’s total asset retirement obligations, which are based upon permit requirements and Company engineering expertise related to these requirements, including the current portion, were approximately $535 million at December 31, 2025. This liability is reviewed annually, or when events and circumstances indicate an adjustment is necessary, by Company management and engineers. The estimated liability can significantly change if actual costs vary from assumptions or if governmental regulations change significantly.

Previous wording

Accounting for asset retirement obligations requires that the fair value of an asset retirement obligation be recognized in the period in which it is incurred if a reasonable estimate of fair value can be made. For active locations, the present value of the estimated asset retirement obligations is capitalized as part of the carrying amount of the long-lived asset. For locations that have been fully depleted or closed, the present value of a change in the estimated value of the obligation is recorded directly to the consolidated statements of income. Asset retirement obligations primarily relate to the reclamation of land upon mine closure, the treatment of mine water discharge where necessary, and the plugging of gas wells acquired for mining purposes. Changes in the assumptions used to calculate the liabilities can have a significant effect on the asset retirement obligations. The amounts of assets and liabilities recorded are dependent upon a number of variables, including the estimated future expenditures, estimated mine lives, assumptions involving inflation rates and the assumed credit-adjusted risk-free interest rate.

Current wording

Accounting for asset retirement obligations requires that the fair value of an asset retirement obligation be recognized in the period in which it is incurred if a reasonable estimate of fair value can be made. For active locations, the present value of the estimated asset retirement obligations is capitalized as part of the carrying amount of the long-lived asset. For locations that have been fully depleted or closed, the present value of a change in the estimated value of the obligation is recorded directly to earnings. Asset retirement obligations primarily relate to the reclamation of land upon mine closure, the treatment of mine water discharge where necessary and the plugging of gas wells acquired for mining purposes. Changes in the assumptions used to calculate the liabilities can have a significant effect on the asset retirement obligations. The amounts of assets and liabilities recorded are dependent upon a number of variables, including the estimated future expenditures, estimated mine lives, assumptions involving inflation rates and the assumed credit-adjusted risk-free interest rate.

Previous wording

Deferred tax assets and liabilities are recognized using enacted tax rates for the estimated future tax effects of temporary differences between the book and tax basis of recorded assets and liabilities. Deferred tax assets are reduced by a valuation allowance if it is more likely than not that some portion of the deferred tax asset will not be realized. At December 31, 2024, the Company had deferred tax liabilities in excess of deferred tax assets of approximately $49 million.

Current wording

Deferred tax assets and liabilities are recognized using enacted tax rates for the estimated future tax effects of temporary differences between the book and tax basis of recorded assets and liabilities. Deferred tax assets are reduced by a valuation allowance if it is more likely than not that some portion of the deferred tax asset will not be realized. At December 31, 2025, the Company had deferred tax liabilities in excess of deferred tax assets of approximately $130 million.

Previous wording

The Company evaluates all tax positions taken on the state and federal tax filings to determine if the position is more likely than not to be sustained upon examination. For positions that meet the more likely than not to be sustained criteria, an evaluation to determine the largest amount of benefit, determined on a cumulative probability basis, that is more likely than not to be realized upon ultimate settlement is determined. A previously recognized tax position is reversed when it is subsequently determined that a tax position no longer meets the more likely than not threshold to be sustained. The evaluation of the sustainability of a tax position and the probable amount that is more likely than not is based on judgment, historical experience and on various other assumptions that the Company believes are reasonable under the circumstances. The results of these estimates, that are not readily apparent from other sources, form the basis for recognizing an uncertain tax liability. Actual results could differ from those estimates upon subsequent resolution of identified matters. No liability for uncertain tax positions was recorded at December 31, 2024. At December 31, 2023, the Company had a liability for uncertain tax positions of $2 million recorded in Other Accrued Liabilities and Deferred Income Taxes.

Current wording

The Company evaluates all tax positions taken on the federal and state tax filings to determine if the position is more likely than not to be sustained upon examination. For positions that meet the more likely than not to be sustained criteria, an evaluation to determine the largest amount of benefit, determined on a cumulative probability basis, that is more likely than not to be realized upon ultimate settlement is determined. A previously recognized tax position is reversed when it is subsequently determined that a tax position no longer meets the more likely than not threshold to be sustained. The evaluation of the sustainability of a tax position and the probable amount that is more likely than not is based on judgment, historical experience and on various other assumptions that the Company believes are reasonable under the circumstances. The results of these estimates that are not readily apparent from other sources form the basis for recognizing an uncertain tax position. Actual results could differ from those estimates upon subsequent resolution of identified matters. At December 31, 2025, the Company had uncertain tax positions totaling $6 million, which reduced gross deferred tax assets. There were no amounts recorded for uncertain tax positions at December 31, 2024.

Previous wording

The Company believes that accounting estimates related to income taxes are “critical accounting estimates” because the Company must assess the likelihood that deferred tax assets will be recovered from future taxable income and exercise judgment regarding the amount of financial statement benefit to record for uncertain tax positions. When evaluating whether or not a valuation allowance must be established on deferred tax assets, the Company exercises judgment in determining whether it is more likely than not (a likelihood of more than 50%) that some portion or all of the deferred tax assets will not be realized. The Company considers all available evidence, both positive and negative, to determine whether, based on the weight of the evidence, a valuation allowance is needed, including carrybacks, tax planning strategies, reversal of deferred tax assets and liabilities and forecasted future taxable income. In making the determination related to uncertain tax positions, the Company considers the amounts and probabilities of the outcomes that could be realized upon ultimate settlement of an uncertain tax position using the facts, circumstances and information available at the reporting date to establish the appropriate amount of financial statement benefit. To the extent that an uncertain tax position or valuation allowance is established or increased or decreased during a period, the Company must include an expense or benefit within tax expense in the income statement. Future results of operations for any particular quarterly or annual period could be materially affected by changes in the Company’s assumptions. At December 31, 2024 and 2023, no valuation allowance was recorded.

Current wording

The Company believes that accounting estimates related to income taxes are “critical accounting estimates” because the Company must assess the likelihood that deferred tax assets will be recovered from future taxable income and exercise judgment regarding the amount of financial statement benefit to record for uncertain tax positions. When evaluating whether a valuation allowance must be established on deferred tax assets, the Company exercises judgment in determining whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The Company considers all available evidence, both positive and negative, to determine whether, based on the weight of the evidence, a valuation allowance is needed, including carrybacks, tax planning strategies, reversal of deferred tax assets and liabilities and forecasted future taxable income. In making the determination related to uncertain tax positions, the Company considers the amounts and probabilities of the outcomes that could be realized upon ultimate settlement of an uncertain tax position using the facts, circumstances and information available at the reporting date to establish the appropriate amount of financial statement benefit. To the extent that an uncertain tax position or valuation allowance is established or increased or decreased during a period, the Company must include an expense or benefit within tax expense in the income statement. Future results of operations for any particular quarterly or annual period could be materially affected by changes in the Company’s assumptions. At December 31, 2025, the Company had a valuation allowance of $75 million. No valuation allowance was recorded at December 31, 2024.

Previous wording

•a current expectation that, more likely than not, a long-lived asset will be sold or otherwise disposed of significantly before the end of its previously estimated useful life. The term more likely than not refers to a level of likelihood that is more than 50 percent.

Current wording

•a current expectation that, more likely than not, a long-lived asset will be sold or otherwise disposed of significantly before the end of its previously estimated useful life. The term more likely than not refers to a level of likelihood that is more than 50%.

Previous wording

The above factors are not all inclusive, and management routinely evaluates whether impairment indicators are present. If one or more of the above events or changes in circumstances occur, the Company performs a recoverability test, which compares the projected undiscounted cash flows from the use and eventual disposition of a long-lived asset or asset group to its carrying value. Individual assets are grouped for impairment review purposes based on the lowest level for which identifiable cash flows are largely independent of the cash flows of other groups of assets. If the carrying value of a long-lived asset exceeds the future undiscounted cash flows expected from the asset, the amount of impairment recorded is measured as the difference between the asset's carrying value and the estimated fair value of the asset, determined using discounted future cash flows. The fair value of impaired assets is typically determined based on various factors, including the present values of expected future cash flows using a risk-adjusted discount rate, the marketability of coal properties and the estimated fair value of assets that could be sold or used at other operations.

Current wording

The above factors are not comprehensive, and management routinely evaluates whether impairment indicators are present. If one or more of the above events or changes in circumstances occur, the Company performs a recoverability test, which compares the projected undiscounted cash flows from the use and eventual disposition of a long-lived asset or asset group to its carrying value. Individual assets are grouped for impairment review purposes based on the lowest level for which identifiable cash flows are largely independent of the cash flows of other groups of assets. If the carrying value of a long-lived asset exceeds the future undiscounted cash flows expected from the asset, the amount of impairment recorded is measured as the difference between the asset’s carrying value and the estimated fair value of the asset, determined using discounted future cash flows. The fair value of impaired assets is typically determined based on various factors, including the present values of expected future cash flows using a risk-adjusted discount rate, the marketability of coal properties and the estimated fair value of assets that could be sold or used at other operations.

Previous wording

The Company's potential sources of liquidity include cash generated from operations, cash on hand, short-term investments of U.S. Treasury securities, borrowings under the revolving credit facility and securitization facility (which are discussed below), and, if necessary, the ability to issue additional equity or debt securities. The Company believes that cash generated from these sources, without needing to issue additional equity or debt securities, will be sufficient to meet its short-term working capital requirements, long-term capital expenditure requirements, and debt servicing obligations, as well as to provide required letters of credit.

Current wording

The Company's potential sources of liquidity include cash generated from operating activities, cash on hand, borrowings under the Revolving Credit Facility and Receivables Financing Agreement (which are discussed and defined below) and, if necessary, the ability to issue equity or debt securities. The Company believes that cash generated from these sources, without needing to issue equity or debt securities, will be sufficient to meet its short-term working capital requirements, long-term capital expenditure requirements and debt servicing obligations, as well as to provide required letters of credit or surety bonds necessary for the Company's operations.

Previous wording

Also in connection with the Merger, the Company entered into an amendment to its existing Revolving Credit Facility. The amendment increases the available revolving commitments from $355 million to $600 million and extends the maturity date of the Revolving Credit Facility to April 30, 2029. The Revolving Credit Facility now includes participation from 22 banks, including nine new lenders, and 37% of the total commitments come from new lenders, while 63% are from existing lenders. Additionally, the Company reduced the annual interest rate by 75 bps while further enhancing financial flexibility.

Current wording

On January 14, 2025, the Company completed the Merger with Arch pursuant to the Merger Agreement. In connection with the Merger, the Company entered into an amendment to its existing Revolving Credit Facility. The amendment increased the available revolving commitments from $355 million to $600 million and extended the scheduled maturity date of the Revolving Credit Facility to April 30, 2029, providing that, under specified conditions, the maturity of the Revolving Credit Facility may be earlier. Additionally, the Company reduced the interest rate margin by 75 basis points while further enhancing financial flexibility.

Previous wording

During the year ended December 31, 2024, the Company generated cash flows from operating activities of approximately $476 million and utilized a portion of operating cash flows to repurchase outstanding shares of the Company's common stock. Our total liquidity as of December 31, 2024 was comprised of the following:

Current wording

Our total liquidity as of December 31, 2025 was comprised of the following:

Previous wording

Events that negatively impact our overall financial condition and liquidity could result in our inability to comply with our credit facility's financial covenants. This could limit our access to our credit facilities if we are unable to obtain waivers from our lenders or amend the credit facilities. Additionally, access to capital remains challenging for the Company's industry as a result of banking, institutional and investor environmental, social and governance (“ESG”) requirements and limitations, which tend to discourage investment in coal and other fossil fuel companies. However, the Company expects to maintain adequate liquidity through its operating cash flow, cash and cash equivalents on hand, and short-term investments, as well as its revolving credit facility and securitization facility, to fund its working capital needs and capital expenditures in the short-term and long-term.

Current wording

Events that negatively impact our operations, overall financial condition and liquidity could result in our inability to comply with the Revolving Credit Facility's financial covenants. This could limit our ability to borrow under the Revolving Credit Facility if we are unable to obtain necessary waivers or amendments. The Company expects to maintain adequate liquidity through its net cash provided by operating activities and cash and cash equivalents on hand, as well as the Revolving Credit Facility and its Receivables Financing Agreement, to fund its working capital needs and capital expenditures in the short-term and long-term.

Previous wording

Uncertainty in the financial markets brings additional potential risks to the Company. These risks include a reduction of our ability to raise capital in the equity markets, less availability and higher costs of additional credit and potential counterparty defaults. Overall market disruptions, including as a result of recent or additional bank failures, high interest rates and sustained high inflation, may impact the Company's collection of trade receivables. As a result, the

Current wording

Uncertainty in the financial markets, tariffs and executive actions by the executive branch of the U.S. Government and certain other foreign nations or sovereignties bring additional potential risks to the Company. These risks could impact our ability to raise capital in the equity and debt markets or result in higher costs to obtain additional capital or credit, as well as increase potential counterparty defaults. In addition, market disruptions and uncertainty, including as a result of potential tariffs and executive actions, high interest rates and sustained high inflation, may impact the Company's revenues and collection of trade receivables. The Company regularly monitors the creditworthiness of its customers and counterparties and manages credit exposure through payment terms, credit limits, prepayments and security.

Previous wording

Over the past few years, the insurance and surety markets have been increasingly challenging, particularly for coal companies. We have experienced rising premiums, reduced coverage and/or fewer providers willing to underwrite policies and surety bonds. Terms have generally become more unfavorable, including increases in the amount of collateral required to secure surety bonds. However, more recently, we have seen insurance rates stabilize and even decrease on certain lines of coverage, as new insurance carriers have entered the market. Further cost burdens on our ability to maintain adequate insurance and bond coverage may adversely impact our operations, financial position and liquidity.

Current wording

Over the past few years, the insurance and surety markets have been increasingly challenging, particularly for coal companies. We have experienced rising premiums, reduced coverage and fewer providers willing to underwrite policies and surety bonds. Terms have become generally unfavorable, including increases in the amount of collateral required to secure surety bonds. However, more recently, we have seen insurance rates and collateral requirements stabilize and even decrease on certain lines of coverage, as new insurance carriers have entered the market. Further cost burdens on our ability to maintain adequate insurance and bond coverage may adversely impact our operations, financial position and liquidity.

Previous wording

In December 2024, the Office of Workers' Compensation Programs issued a final rule revising the regulations under the Black Lung Benefits Act related to self-insurance by coal mine operators. Under the new standard, self-insured coal mine operators are required to post additional security for the Black Lung benefit liabilities. The final rule requires a security amount equal to 100% of a self-insured operator's projected black lung liabilities. The rule became effective on January 13, 2025, and operators are required to remit the increased security amount within one year. The final rule, including any assessments, is subject to appeal.

Current wording

In December 2024, the Office of Workers' Compensation Programs (the “OWCP”) issued a final rule revising the regulations under the Black Lung Benefits Act related to self-insurance by coal mine operators. Under the new standard, self-insured coal mine operators are required to post additional security for the Black Lung benefit liabilities. The final rule requires a security amount equal to 100% of a self-insured operator's projected black lung liabilities. The rule became effective on January 13, 2025, and operators were required to remit the increased security amount within one year. The final rule, including any assessments, is subject to appeal. In February 2025, the Company received letters from the OWCP that additional guidance regarding the final rule will be provided at a future date.

Previous wording

The Company participates in the United Mine Workers of America (the “UMWA”) Combined Benefit Fund and the UMWA 1992 Benefit Plan for which benefits are reflected in the Company's consolidated financial statements when paid. These benefit arrangements may result in additional liabilities that are not recognized on the Consolidated Balance Sheet at December 31, 2024. The various multi-employer benefit plans are discussed in Note 17—Other Employee Benefit Plans in the Notes to the Consolidated Financial Statements in Item 8 of this Form 10-K. The Company's total contributions under the Coal Industry Retiree Health Benefit Act of 1992 were$3 million and $4 millionfor the years ended December 31, 2024 and 2023, respectively. Based on available information at December 31, 2024, the Company's aggregate obligation for the UMWA Combined Benefit Fund and 1992 Benefit Plan is estimated to be approximately $31 million. The Company also uses a combination of surety bonds, corporate guarantees and letters of credit to secure its financial obligations for employee-related, environmental, performance and various other items which are not reflected on the Consolidated Balance Sheet at December 31, 2024. Management believes these items will expire without being funded. See Note 23—Commitments and Contingent Liabilities in the Notes to the Consolidated Financial Statements included in Item 8 of this Form 10-K for additional details of the various financial guarantees that have been issued by the Company.

Current wording

The Company participates in the UMWA Combined Benefit Fund and the 1992 Benefit Plan for which benefits are reflected in the Company’s consolidated financial statements when paid. These benefit arrangements may result in additional liabilities that are not recognized on the Consolidated Balance Sheet at December 31, 2025. The various multi-employer benefit plans are discussed in Note 17—Other Employee Benefit Plans in the Notes to the Audited Consolidated Financial Statements in Item 8 of this Report. The Company’s total contributions under the Coal Industry Retiree Health Benefit Act of 1992 were$3 million and $3 millionfor the years ended December 31, 2025 and 2024, respectively. Based on available information at December 31, 2025, the Company’s aggregate obligation for the UMWA Combined Benefit Fund and 1992 Benefit Plan is estimated to be approximately $30 million. The Company also uses a combination of surety bonds, corporate guarantees and letters of credit to secure its financial obligations for employee-related, environmental, performance and various other items which are not reflected on the Consolidated Balance Sheet at December 31, 2025. Management believes these items will expire without being funded. See Note 22—Commitments and Contingent Liabilities in the Notes to the Audited Consolidated Financial Statements in Item 8 of this Report for additional details of the various financial guarantees that have been issued by the Company.

Previous wording

In November 2017, the Company entered into a revolving credit facility with PNC Bank, N.A. (the “Revolving Credit Facility”). The Revolving Credit Facility has been amended several times, the most recent of which occurred in January 2025 in connection with the Merger. This amendment increased the available revolving commitments from $355 million to $600 million. The Revolving Credit Facility now includes participation from twenty-two banks, including nine new lenders, and 37% of the total commitments come from new lenders, while 63% are from existing lenders. Additionally, the Company reduced the applicable interest margin on its borrowings under the Revolving Credit Facility by 75 bps.

Current wording

In November 2017, the Company entered into a revolving credit facility with PNC Bank, N.A. (“PNC”) (as amended, the “Revolving Credit Facility”). The Revolving Credit Facility has been amended several times, the most recent of which occurred in January 2025 in connection with the Merger. The January 2025 amendment increased the available revolving commitments from $355 million to $600 million and extended the scheduled maturity date to April 30, 2029, provided that, if any of the MEDCO Bonds or PEDFA Bonds (as defined below) and any subsequent refinancings thereof remain outstanding 91 days prior to their stated maturity and our specified liquidity, as measured under the Revolving Credit Facility, is less than $250 million at that time, the maturity date of the Revolving Credit Facility will be such date. Additionally, the Company reduced the applicable interest rate margin on its borrowings and letters of credit under the Revolving Credit Facility by 75 basis points.

Previous wording

Borrowings under the Revolving Credit Facility may be used for general corporate purposes, including working capital, capital expenditures and permitted acquisitions. Amounts repaid under the Revolving Credit Facility may be reborrowed, subject to satisfaction of the conditions to each credit extension. The Credit Agreement provides that up to the full amount of the Revolving Credit Facility will be available for the issuance of letters of credit (the “Letters of Credit”) by each lender under the Revolving Credit Facility, including certain Arch letters of credit that are deemed to be issued under the Revolving Credit Facility. The Company may increase the revolving credit commitments on the same terms or incur term “A” loans in an aggregate amount of up to $150 million.

Current wording

Borrowings under the Revolving Credit Facility may be used for general corporate purposes, including working capital, capital expenditures and permitted acquisitions. Amounts repaid under the Revolving Credit Facility may be reborrowed, subject to satisfaction of the conditions to each credit extension. The Revolving Credit Facility provides that up to the full amount of the facility may be used for the issuance of letters of credit (the “Letters of Credit”) by each lender under the Revolving Credit Facility, including Arch letters of credit that are deemed to be issued under the Revolving Credit Facility. The Company may increase the revolving credit commitments on the same terms or incur term “A” loans, in each case in an aggregate amount of up to $150 million.

Previous wording

The maturity date of the Revolving Credit Facility is April 30, 2029, provided that if any Maryland Economic Development Corporation Port Facilities 5.75% Refunding Revenue Bonds due September 2025 (the “MEDCO Bonds”) or Pennsylvania Economic Development Financing Authority 9.00% Solid Waste Disposal Revenue Bonds due April 2028 (the “PEDFA Bonds”) are outstanding on the date that is 91 days prior to the maturity date applicable to the MEDCO Bonds or PEDFA Bonds (the “Springing Maturity Date”), and Specified Liquidity (as defined in the Credit Agreement) is less than $250 million as of such Springing Maturity Date, then the maturity date for the Revolving Credit Facility shall be such Springing Maturity Date. Borrowings under the Revolving Credit Facility bear interest at a floating rate that is, at the Company’s option, either (i) SOFR plus a SOFR adjustment of 0.10% plus an applicable margin or (ii) an alternate base rate plus an applicable margin. The applicable margin for the Revolving Credit Facility depends on the total net leverage ratio and ranges from 3.00% to 3.75% (for SOFR loans) and 2.00% to 2.75% (for alternate base rate loans), depending on the total net leverage ratio.

Current wording

Borrowings under the Revolving Credit Facility bear interest at a floating rate that is, at the Company’s option, either (i) the applicable term Secured Overnight Financing Rate (“SOFR”) plus a SOFR adjustment of 0.10% plus an applicable margin or (ii) an alternate base rate plus an applicable margin. The applicable margin for the Revolving Credit Facility ranges from 3.00% to 3.75% (for SOFR loans) and 2.00% to 2.75% (for alternate base rate loans), depending on the total net leverage ratio.

Previous wording

The Company’s obligations under the Credit Agreement are fully and unconditionally guaranteed by subsidiaries of the Company that own any portion of the Company’s Pennsylvania Mining Complex, its marine terminal at the Port of Baltimore and specified coal reserves. The Credit Agreement also provides that existing or future direct or indirect wholly owned material restricted subsidiaries of the Borrower will be Guarantors under the Credit Agreement, including significant subsidiaries acquired pursuant to the Merger, subject to certain customary exceptions. The January 2025 amendment provides for a post-closing period during which subsidiaries acquired pursuant to the Merger will become Guarantors under the Credit Agreement. The obligations under the Credit Agreement are secured by, subject to certain exceptions (including a limitation of pledges of equity interests in certain subsidiaries and certain thresholds with respect to real property), a first-priority lien on, among other things, (i) the Company’s interest in the PAMC, (ii) the equity interests in PA Mining Complex LP held by the Company, (iii) the CONSOL Marine Terminal, (iv) the Itmann Mining Complex and (v) the 1.3 billion tons of Greenfield Reserves and Resources.

Current wording

The Company’s obligations under the Revolving Credit Facility are fully and unconditionally guaranteed by subsidiaries of the Company that own any portion of the Company’s Pennsylvania Mining Complex, its marine terminal at the Port of Baltimore and specified coal reserves and, subject to certain customary exceptions, all other existing or future direct or indirect wholly-owned material restricted subsidiaries of the Company, including subsidiaries acquired pursuant to the Merger. The obligations under the Revolving Credit Facility are secured by, subject to certain exceptions (including a limitation on pledges of equity interests in certain subsidiaries and certain thresholds with respect to real property), a first-priority lien on the Company's and certain subsidiaries' significant assets.

Previous wording

The Credit Agreement contains a number of customary affirmative covenants and a number of negative covenants, including (subject to certain exceptions) limitations on (among other things): indebtedness, liens, investments, acquisitions, asset dispositions, restricted payments, mergers, consolidations, divisions and other fundamental changes, transactions with affiliates and prepayments of junior indebtedness. The Credit Agreement will require prepayment of Revolving Credit Loans and/or Swing Loans if (x) Excess Balance Sheet Cash is greater than $125 million and (y) the sum of Revolving Credit Loans, Swing Loans and Letter of Credit Obligations (other than in respect of undrawn Letters of Credit) is greater than 25% of the Revolving Credit Commitments, in each case as of the last day of any calendar month.

Current wording

The Revolving Credit Facility contains a number of customary affirmative covenants and a number of negative covenants, including (subject to certain exceptions) limitations on (among other things): indebtedness, liens, investments, acquisitions, asset dispositions, restricted payments, mergers, consolidations, divisions and other fundamental changes, transactions with affiliates and prepayments of junior indebtedness. The Revolving Credit Facility requires prepayment of Revolving Credit Loans and Swing Loans if (x) Excess Balance Sheet Cash is greater than $125 million and (y) the sum of Revolving Credit Loans, Swing Loans and Letter of Credit Obligations (other than in respect of undrawn Letters of Credit) is greater than 25% of the Revolving Credit Commitments, in each case as of the last day of any calendar month.

Previous wording

The Credit Agreement also includes financial covenants, including (i) a maximum first lien gross leverage ratio, (ii) a maximum total net leverage ratio, and (iii) a minimum interest coverage ratio. Under the Revolving Credit Facility, the maximum first lien gross leverage ratio is 1.50 to 1.00, the maximum total net leverage ratio is 2.50 to 1.00 and the minimum interest coverage ratio is 3.00 to 1.00. The Credit Agreement contains customary events of default, including with respect to a failure to make payments when due, cross-default and cross-judgment default and certain bankruptcy and insolvency events.

Current wording

The Revolving Credit Facility also includes financial covenants, including (i) a maximum first lien gross leverage ratio, (ii) a maximum total net leverage ratio, and (iii) a minimum interest coverage ratio. Under the Revolving Credit Facility, the maximum first lien gross leverage ratio is 1.50 to 1.00, the maximum total net leverage ratio is 2.50 to 1.00 and the minimum interest coverage ratio is 3.00 to 1.00. The Revolving Credit Facility contains customary events of default, including failure to make payments when due, cross-default and cross-judgment default and certain bankruptcy and insolvency events.

Previous wording

The Company's first lien gross leverage ratio was 0.04 to 1.00 at December 31, 2024. The Company's total net leverage ratio was (0.39) to 1.00 at December 31, 2024. The Company's interest coverage ratio was 123.54 to 1.00 at December 31, 2024. The Company was in compliance with all covenants under the Revolving Credit Facility as of December 31, 2024.

Current wording

The Company's first lien gross leverage ratio was 0.28 to 1.00 at December 31, 2025. The Company's total net leverage ratio was 0.03 to 1.00 at December 31, 2025. The Company's interest coverage ratio was 35.10 to 1.00 at December 31, 2025. The Company was in compliance with all covenants under the Revolving Credit Facility as of December 31, 2025.

Previous wording

At December 31, 2024, there were no borrowings outstanding under the Revolving Credit Facility and the facility is currently only used for providing letters of credit, with $107 million of letters of credit outstanding, leaving $248 million of unused capacity, prior to consideration of the additional capacity to be provided by the January 2025 amendment discussed above. From time to time, the Company is required to post financial assurances to satisfy contractual and other requirements generated in the normal course of business. Some of these assurances are posted to comply with federal, state or other government agencies' statutes and regulations. The Company sometimes uses letters of credit to satisfy these requirements and these letters of credit reduce the Company's borrowing facility capacity.

Current wording

At December 31, 2025, there were no borrowings outstanding under the Revolving Credit Facility. The Revolving Credit Facility is currently only used for providing letters of credit, with$110 million of letters of credit outstanding, leaving$490 million of unused capacity. From time to time, the Company is required to post financial assurances to satisfy contractual and other requirements generated in the normal course of business. Some of these assurances are posted to comply with federal, state or other government agencies’ statutes and regulations. The Company sometimes uses letters of credit to satisfy these requirements, and these letters of credit reduce the Company’s borrowing facility capacity.