# EDGAR Filing Document

**Accession Number:** 0001710366
**File Stem:** 0001710366-26-000040
**Filing Date:** 2026-5
**Character Count:** 74356
**Document Hash:** f448e28ee444c0571e35d0ffbe87c8e0
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001710366-26-000040.hdr.sgml**: 20260507

**ACCESSION NUMBER**: 0001710366-26-000040

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 38

**CONFORMED PERIOD OF REPORT**: 20260507

**ITEM INFORMATION**: Results of Operations and Financial Condition

**ITEM INFORMATION**: Regulation FD Disclosure

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20260507

**DATE AS OF CHANGE**: 20260507

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Core Natural Resources, Inc.
- **CENTRAL INDEX KEY:** 0001710366
- **STANDARD INDUSTRIAL CLASSIFICATION:** BITUMINOUS COAL & LIGNITE MINING [1220]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DC
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-38147
- **FILM NUMBER:** 26950738

**BUSINESS ADDRESS:**
- **STREET 1:** 275 TECHNOLOGY DRIVE
- **STREET 2:** SUITE #101
- **CITY:** CANONSBURG
- **STATE:** PA
- **ZIP:** 15317
- **BUSINESS PHONE:** 724-416-8300

**MAIL ADDRESS:**
- **STREET 1:** 275 TECHNOLOGY DRIVE
- **STREET 2:** SUITE #101
- **CITY:** CANONSBURG
- **STATE:** PA
- **ZIP:** 15317

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** CONSOL Energy Inc.
- **DATE OF NAME CHANGE:** 20171128

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** CONSOL Mining Corp
- **DATE OF NAME CHANGE:** 20170626

?xml version='1.0' encoding='ASCII'? cnr-20260507

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549** 

**FORM 8-K**

**CURRENT REPORT**

**PURSUANT TO SECTION 13 OR 15(d) OF THE**

**SECURITIES EXCHANGE ACT OF 1934**

**Date of Report (Date of earliest event reported): May 7, 2026**

**Core Natural Resources, Inc.**

**(Exact name of registrant as specified in its charter)**

---

| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;**Delaware** | &nbsp;&nbsp;&nbsp;&nbsp;**001-38147** | &nbsp;&nbsp;&nbsp;&nbsp;**82-1954058** |
| **(State or other jurisdiction of incorporation)** | &nbsp;&nbsp;&nbsp;&nbsp;**(Commission File Number)** | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**(IRS Employer**<br>**Identification No.)** |

---

**275 Technology Drive Suite 101**

**Canonsburg, Pennsylvania 15317**

**(Address of principal executive offices)**

**(Zip code)**

**Registrant's telephone number, including area code:**

**(724) 416-8300** 

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

---

| | | |
|:---|:---|:---|
| **<u>Title of each class</u>** | **<u>Trading Symbol(s)</u>** | **<u>Name of each exchange on which registered</u>** |
| Common Stock, $0.01 par value | CNR | New York Stock Exchange |

---

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

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. ☐

------

**Item 2.02 Results of Operations and Financial Condition.**

Core Natural Resources, Inc. (the "Company," "we," "us," or "our") issued a press release on May 7, 2026 announcing its 2026 first quarter results. A copy of the press release is attached to this Form 8-K as Exhibit 99.1.

Please refer to our website at www.corenaturalresources.com for additional information regarding the Company. For example, periodically during the quarter, we may provide investor presentations, which would appear on our website in the Investors section.

**Item 7.01 Regulation FD Disclosure.**

On May 7, 2026, the Company posted an investor presentation to its website, which is furnished as Exhibit 99.2 hereto and is incorporated herein by reference.

The information in this Current Report and the exhibits hereto shall be considered "furnished" and shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933 as amended, or the Exchange Act, regardless of any general incorporation language in such filing, except as shall be expressly set forth by specific reference in such filing.

The response to Item 2.02 is incorporated herein by reference to this Item 7.01.

**Item 9.01 Financial Statements and Exhibits.**

*(d) Exhibits.* 

Exhibit 99.1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Press release of Core Natural Resources, Inc. dated May 7, 2026](cnrq12026er-exhibit991.htm)</u>

Exhibit 99.2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Core Natural Resources, Inc. Investor Presentation dated May 7, 2026](cnrq12026er-exhibit992.htm)</u>

Exhibit 104&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cover Page Interactive Data File (embedded within the Inline XBRL document)

------

**SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;**Core Natural Resources, Inc.** | &nbsp;&nbsp;&nbsp;&nbsp;**Core Natural Resources, Inc.** |
| &nbsp;&nbsp;&nbsp;&nbsp;**(Registrant)** | &nbsp;&nbsp;&nbsp;&nbsp;**(Registrant)** |
| &nbsp;&nbsp;&nbsp;&nbsp;By: | /s/ MITESHKUMAR B. THAKKAR |
|  | &nbsp;&nbsp;&nbsp;&nbsp;Miteshkumar B. Thakkar |
|  | &nbsp;&nbsp;&nbsp;&nbsp;President and Chief Financial Officer |

---

Dated: May 7, 2026

## Exhibit 99.1

**Exhibit 99.1**

![corelogoa.jpg](corelogoa.jpg)

**Core Natural Resources Reports First Quarter 2026 Results**

***Reports net income of $21.0 million and adjusted EBITDA***<sup>1</sup> ***of $179.9 million***

***Delivers excellent operating performances at Leer South and West Elk***

***Generates net cash provided by operating activities of $119.4 million and free cash flow***<sup>1</sup> ***of $55.5 million***

***Returns $47.0 million to stockholders, bringing the total returned to stockholders since Q1 2025 to $292.1 million***

CANONSBURG, Pa., May 7, 2026 /PRNewswire/ — Today, Core Natural Resources, Inc. (NYSE: CNR) ("Core" or the "company") reported net income of $21.0 million, or $0.41 per diluted share, in the first quarter of 2026. Additionally, Core reported adjusted EBITDA<sup>1</sup> of $179.9 million in the quarter. Revenues totaled $1.1 billion in Q1.

"I am pleased to report that Core is beginning to demonstrate the true potential of the combined platform," said Jimmy Brock, Core's chair and chief executive officer. "During Q1, Core's operations executed at a high level, led by strong performances at Leer South and West Elk, while again deploying substantial free cash flow to our capital return program. The metallurgical segment achieved a significant, quarter-over-quarter increase in sales margins, underpinned by a substantial step-down in its cash cost of coal sold per ton, and the high calorific value thermal segment again delivered solid sales margins even as it navigated elevated electricity costs at the Pennsylvania Mining Complex stemming from this winter's Arctic outbreak as well as several weeks of challenging geology at the PAMC. Most importantly, the team continued to operate in tight alignment with our core values – safety and compliance, continuous improvement, and financial performance. Looking ahead, we expect to maintain this positive momentum in pursuit of operational excellence across the entire enterprise."

**Operational and Marketing Update**

During the first quarter of 2026, Core's high calorific value thermal segment had coal sales of 7.7 million tons and achieved realized coal revenue per ton sold<sup>1</sup> of $58.86, with both sales volumes and realized pricing generally in line with the previous quarter's results. The segment had cash cost of coal sold per ton<sup>1</sup> of $42.56, which was modestly higher than in the previous quarter due to the previously discussed power price spikes and short-term (and now past) geologic challenges at the PAMC.

In Core's metallurgical segment, coking coal sales totaled 2.1 million tons in Q1 and thermal byproduct sales totaled 0.3 million tons. The segment achieved realized coal revenue per ton sold<sup>1</sup> for coking coal of $122.11, which was 7 percent higher than during the previous quarter due principally to an increased percentage of sales linked to Premium Low-Vol pricing. Realized coal revenue per ton sold<sup>1</sup> for the metallurgical segment as a whole was $112.03. The metallurgical segment reported a cash cost of coal sold per ton<sup>1</sup> of $92.35, which was 11 percent lower than in the previous quarter.

In the Powder River Basin segment, Q1 sales volumes totaled 11.9 million tons, which represented a step-down from the previous quarter's volume levels due to reduced shipments in the face of a relatively temperate winter overall. Realized coal revenue per ton sold<sup>1</sup> was $14.39 and cash cost of coal sold per ton<sup>1</sup> came in at $13.64, which was generally in line with the previous quarter despite the lower volume levels.

------

The following table presents operational results by reportable segment (in millions, except per ton information):

---

| | | | |
|:---|:---|:---|:---|
| | **Three Months Ended** | **Three Months Ended** | **Three Months Ended** |
| | **March 31, 2026** | **December 31, 2025** | **March 31, 2025** |
| **High C.V. Thermal Segment** | | | |
| Tons Sold | 7.7 | 7.8 | 7.1 |
| Realized Coal Revenue per Ton Sold<sup>1</sup> | $58.86 | $58.11 | $63.18 |
| Cash Cost of Coal Sold per Ton<sup>1</sup> | $42.56 | $41.42 | $42.78 |
| Cash Margin per Ton Sold<sup>1</sup> | $16.30 | $16.69 | $20.40 |
| **Metallurgical Segment** |  |  |  |
| Tons Sold | 2.5 | 2.3 | 2.3 |
| &nbsp;&nbsp;&nbsp;&nbsp;Coking Coal | 2.1 | 2.0 | 1.9 |
| &nbsp;&nbsp;&nbsp;&nbsp;Thermal Byproduct | 0.3 | 0.3 | 0.4 |
| Realized Coal Revenue per Ton Sold<sup>1</sup> | $112.03 | $105.45 | $98.26 |
| &nbsp;&nbsp;&nbsp;&nbsp;Coking Coal<sup>1</sup> | $122.11 | $114.25 | $113.70 |
| &nbsp;&nbsp;&nbsp;&nbsp;Thermal Byproduct<sup>1</sup> | $41.94 | $47.50 | $32.83 |
| Cash Cost of Coal Sold per Ton<sup>1</sup> | $92.35 | $103.49 | $91.00 |
| Cash Margin per Ton Sold<sup>1</sup> | $19.68 | $1.96 | $7.26 |
| **Powder River Basin Segment** |  |  |  |
| Tons Sold | 11.9 | 12.6 | 10.7 |
| Realized Coal Revenue per Ton Sold<sup>1</sup> | $14.39 | $14.21 | $14.93 |
| Cash Cost of Coal Sold per Ton<sup>1</sup> | $13.64 | $13.62 | $12.44 |
| Cash Margin per Ton Sold<sup>1</sup> | $0.75 | $0.59 | $2.49 |

---

**Financial, Liquidity, and Capital Return Update**

During Q1 2026, Core generated net cash provided by operating activities of $119.4 million and free cash flow<sup>1</sup> of $55.5 million.

Core's capital return framework targets the return to stockholders of around 75 percent of free cash flow<sup>1</sup>, with the significant majority of that return directed to share repurchases complemented by a sustaining quarterly dividend of $0.10 per share. During Q1 2026, the company invested $41.9 million to repurchase 464,600 shares of its common stock at an average share price of $90.23. Core has now invested a total of $266.2 million to repurchase 3.6 million shares of common stock, or roughly 6.6 percent of total shares outstanding as of the program's launch, at an average share price of $74.92, and a total of $292.1 million, inclusive of dividend payments, in the capital return program overall.

Since the inception of its capital return program in February 2025, Core has returned approximately 97 percent of its free cash flow<sup>1</sup> to stockholders via its capital return program. As of March 31, 2026, Core had $733.8 million of remaining authorization under its existing $1.0 billion share repurchase program.

In addition, the board declared a $0.10 per share quarterly dividend payable on June 12, 2026, to stockholders of record on May 29, 2026.

"Looking ahead, we expect to build on the strong free cash flow generation achieved in the first quarter of 2026, supported by the anticipation of further improvements in our operational execution and cost performance in key operating segments; the expectation of significant incremental insurance proceeds related to last year's combustion event at Leer South; and our strong book of contracted business, particularly in the high calorific value thermal segment," said Mitesh Thakkar, Core's president and chief financial officer. "We expect that strong outlook for free cash flow generation to drive another year of robust capital returns to our stockholders, anchored by share repurchases."

At March 31, 2026, Core had total liquidity of $935 million, including $413 million in cash and cash equivalents.

------

**Market Update**

Market conditions are highly dynamic in global energy markets at present.

Despite continuing growth in U.S. electricity demand, particularly in the most coal-dependent regions, thermal coal consumption retraced during Q1 in the face of relatively mild weather and weak natural gas prices. Still, Core views the outlook for domestic thermal coal demand as promising, as U.S. grid operators prepare for robust power demand growth through the remainder of the decade, spurred by the AI-driven data center build-out. With the U.S. coal fleet still operating at a capacity factor of less than 50 percent – and with the Trump Administration moving aggressively to ensure the long-term viability of the U.S. coal fleet – Core expects U.S. thermal coal markets to expand and strengthen in coming quarters.

While global economic uncertainty has weighed on metallurgical markets in recent months, the ongoing rationalization of high-cost supply coupled with the aftereffects of weather-related disruptions in Australia continue to provide a level of support to these markets, while at the same time highlighting the fragility of the global supply chain. Looking ahead, Core expects the ongoing, steel-dependent build-out of Southeast Asian economies – along with sustained investment in new blast furnace capacity across that region – to support a constructive, long-term market outlook for high-quality coking coals.

Importantly, Core continues to capitalize on the ability to direct its exceptionally high-rank thermal coals to the most advantageous segments of the seaborne market at a time of historic volatility in energy markets.

**Outlook**

"As anticipated, we believe we have reached an inflection point in Core's operational and financial execution," Brock stated. "With the entire operating platform now performing at a high level, we expect to generate substantial amounts of free cash flow for deployment in our capital return program in future quarters, while continuing to demonstrate Core's ability to create stockholder value in a wide range of market environments. At the same time, our diversified portfolio of world-class assets – in concert with our extensive and strategic logistical network – should continue to position us to capitalize on the most compelling market opportunities in today's highly dynamic energy markets, including resurgent power demand growth here in the United States, tightening global energy markets, and the ongoing infrastructure build-out in the developing world."

*1 - Adjusted EBITDA and Free Cash Flow are non-GAAP financial measures and Realized Coal Revenue per Ton Sold and Cash Cost of Coal Sold per Ton are operating ratios derived from non-GAAP financial measures, each of which is reconciled to the most directly comparable GAAP financial measures below, under the caption "Reconciliation of Non-GAAP Financial Measures." Cash Margin per Ton Sold is an operating ratio derived from non-GAAP financial measures and is defined as realized coal revenue per ton sold less cash cost of coal sold per ton.*

------

**2026 Guidance**

---

| | | |
|:---|:---|:---|
| | **2026** | **2026** |
| | **Tons** | **$ per ton** |
| **<u>Sales Volume</u>** *<u>(in millions of tons)</u>* |  |  |
| Coking<sup>1</sup> | 8.6 - 9.4 |  |
| High C.V. Thermal<sup>2</sup> | 30.0 - 32.0 |  |
| Powder River Basin | 47.0 - 50.0 |  |
| Total | 85.6 - 91.4 |  |
| **<u>Metallurgical</u>** *<u>(in millions of tons)</u>* |  |  |
| Committed, Priced Coking | 3.8 | $122.40 |
| Committed, Unpriced Coking | 4.5 |  |
| Total Committed Coking | 8.3 |  |
| Metallurgical Cash Cost of Coal Sold per Ton |  | $88.00 - $94.00 |
| **<u>High C.V. Thermal</u>** *<u>(in millions of tons)</u>* |  |  |
| Committed, Priced<sup>3</sup> | 28.5 | $57.85 |
| Committed, Unpriced | 0.6 |  |
| Total Committed High C.V. Thermal | 29.1 |  |
| High C.V. Thermal Cash Cost of Coal Sold per Ton |  | $38.00 - $39.50 |
| **<u>Powder River Basin</u>**<sup>4</sup> *<u>(in millions of tons)</u>* |  |  |
| Committed, Priced | 47.8 | $14.20 |
| Powder River Basin Cash Cost of Coal Sold per Ton |  | $13.00 - $13.50 |
| **<u>Corporate</u>** *<u>(in $ millions)</u>* |  |  |
| Capital Expenditures | $325 - $375 |  |
| Depreciation, Depletion and Amortization | $600 - $650 |  |
| Cash Basis Selling, General and Administrative<sup>5</sup> | $85 - $100 |  |
| Cash Tax Rate | 0% - 5% |  |

---

1 - Excludes thermal byproduct

2 - Includes crossover volumes

3 - Reflects inclusion of collared commitments

4 - Reflects the expected impact of the recently enacted royalty rate reduction on federal coal leases

5 - Excludes expenses related to non-cash stock-based compensation and other non-recurring adjustments

*Note - Core is unable to provide a reconciliation of Metallurgical Cash Cost of Coal Sold per Ton, High C.V. Thermal Cash Cost of Coal Sold per Ton and Powder River Basin Cash Cost of Coal Sold per Ton guidance, which are operating ratios derived from non-GAAP financial measures, without unreasonable efforts due to the unknown effect, timing and potential significance of certain income statement items.*

------

**Availability of Additional Information**

Please refer to our website, www.corenaturalresources.com, for additional information regarding the company. In addition, we may provide other information about the company from time to time on our website.

Investors seeking our detailed financial statements can refer to the Quarterly Report on Form 10-Q once it has been filed with the Securities and Exchange Commission ("SEC").

**About Core Natural Resources, Inc.**

Core Natural Resources, Inc. (NYSE: CNR) is a world-class producer of high-quality metallurgical and high calorific value thermal coals for the global marketplace. Core's highly skilled workforce operates a best-in-sector portfolio of large-scale, low-cost longwall mines, including the Pennsylvania Mining Complex, Leer, Leer South, and West Elk mines, along with one of the world's largest and most productive surface mines, Black Thunder. The company plays an essential role in meeting the world's growing need for steel, infrastructure, and energy, while simultaneously serving the resurgent requirements of the U.S. power generation fleet. Core has an extensive and strategic logistical network – anchored by ownership positions in two East Coast marine export terminals – that provides reliable and efficient access to seaborne coal markets. The company's deeply ingrained culture is grounded in safety and compliance, continuous improvement, and financial performance, with an emphasis on stakeholder engagement and stockholder returns. Core was created in January 2025 via the merger of long-time industry leaders CONSOL Energy and Arch Resources and is based in Canonsburg, Pennsylvania.

------

**Condensed Consolidated Statement of Cash Flows**

The following table presents the condensed consolidated statement of cash flows for the three months ended March 31, 2026 (in thousands):

---

| | |
|:---|:---|
| | **Three Months Ended March 31,** |
| | **2026** |
| **Cash Flows from Operating Activities:** | **(Unaudited)** |
| &nbsp;&nbsp;&nbsp;&nbsp;Net Income | $21044 |
| &nbsp;&nbsp;&nbsp;&nbsp;Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities: |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Depreciation, Depletion and Amortization | 146295 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other Non-Cash Adjustments to Net Income | 4554 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Changes in Working Capital | (52493) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**Net Cash Provided by Operating Activities** | 119400 |
| **Cash Flows from Investing Activities:** |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Capital Expenditures | (73097) |
| &nbsp;&nbsp;&nbsp;&nbsp;Proceeds from Sales of Assets | 9211 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other Investing Activity | (15949) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**Net Cash Used in Investing Activities** | (79835) |
| **Cash Flows from Financing Activities:** |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Net Payments on Long-Term Debt, Including Fees | (8923) |
| &nbsp;&nbsp;&nbsp;&nbsp;Repurchases of Common Stock | (41923) |
| &nbsp;&nbsp;&nbsp;&nbsp;Dividends and Dividend Equivalents Paid | (5105) |
| &nbsp;&nbsp;&nbsp;&nbsp;Other Financing Activities | (1646) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**Net Cash Used in Financing Activities** | (57597) |
| Net Decrease in Cash, Cash Equivalents and Restricted Cash | (18032) |
| **Cash, Cash Equivalents and Restricted Cash at Beginning of Period** | 601162 |
| **Cash, Cash Equivalents and Restricted Cash at End of Period** | $583130 |

---

------

**Reconciliation of Non-GAAP Financial Measures**

We define realized coal revenue as revenues reported in the Condensed Consolidated Statements of Income (Loss) less transportation costs, transloading revenues and other revenues not directly attributable to coal sales. We define realized coal revenue per ton sold as realized coal revenue divided by tons sold.

The following tables present reconciliations by reportable segment of realized coal revenue and realized coal revenue per ton sold to revenues, the most directly comparable GAAP financial measure (in thousands, except per ton information):

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** |
| | **High CV Thermal** | **Metallurgical** | **PRB** | **Core Marine Terminal** | **Idle and Other** | **Eliminations** | **Consolidated** |
| Revenues | $552832 | $342335 | $175180 | $24212 | $5429 | $(15710) | $1084278 |
| **Less: Adjustments to Reconcile to Segment Realized Coal Revenue** |  |  |  |  |  |  |  |
| Transportation Costs, including Intersegment Transportation Costs | 99373 | 67787 | 3707 |  |  |  | 170867 |
| Intersegment Terminal Revenues |  |  |  | 15710 |  | (15710) |  |
| Non-Coal Revenues |  |  |  | 8502 | 5429 |  | 13931 |
| Segment Realized Coal Revenue | $453459 | $274548 | $171473 | $— | $— | $— | $899480 |
| Tons Sold | 7703 | 2451 | 11918 |  |  |  |  |
| Realized Coal Revenue per Ton Sold | $58.86 | $112.03 | $14.39 |  |  |  |  |

---

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| | **Three Months Ended December 31, 2025** | **Three Months Ended December 31, 2025** | **Three Months Ended December 31, 2025** | **Three Months Ended December 31, 2025** | **Three Months Ended December 31, 2025** | **Three Months Ended December 31, 2025** | **Three Months Ended December 31, 2025** |
| | **High CV Thermal** | **Metallurgical** | **PRB** | **Core Marine Terminal** | **Idle and Other** | **Eliminations** | **Consolidated** |
| Revenues | $545336 | $304787 | $182956 | $24105 | $2996 | $(17715) | $1042465 |
| **Less: Adjustments to Reconcile to Segment Realized Coal Revenue** |  |  |  |  |  |  |  |
| Transportation Costs, including Intersegment Transportation Costs | 89525 | 65953 | 3287 |  |  |  | 158765 |
| Intersegment Terminal Revenues |  |  |  | 17715 |  | (17715) |  |
| Non-Coal Revenues |  |  |  | 6390 | 2996 |  | 9386 |
| Segment Realized Coal Revenue | $455811 | $238834 | $179669 | $— | $— | $— | $874314 |
| Tons Sold | 7844 | 2265 | 12647 |  |  |  |  |
| Realized Coal Revenue per Ton Sold | $58.11 | $105.45 | $14.21 |  |  |  |  |

---

------

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** |
| | **High CV Thermal** | **Metallurgical** | **PRB** | **Core Marine Terminal** | **Idle and Other** | **Eliminations** | **Consolidated** |
| Revenues | $542086 | $304580 | $162589 | $21226 | $3195 | $(16270) | $1017406 |
| **Less: Adjustments to Reconcile to Segment Realized Coal Revenue** |  |  |  |  |  |  |  |
| Transportation Costs, including Intersegment Transportation Costs | 93729 | 76982 | 2740 |  |  |  | 173451 |
| Intersegment Terminal Revenues |  |  |  | 16270 |  | (16270) |  |
| Non-Coal Revenues |  |  |  | 4956 | 3195 |  | 8151 |
| Segment Realized Coal Revenue | $448357 | $227598 | $159849 | $— | $— | $— | $835804 |
| Tons Sold | 7097 | 2316 | 10707 |  |  |  |  |
| Realized Coal Revenue per Ton Sold | $63.18 | $98.26 | $14.93 |  |  |  |  |

---

The following tables present breakdowns of the realized coal revenue per ton sold for the Metallurgical segment between coking coal and thermal byproduct (in thousands, except per ton information):

---

| | | | |
|:---|:---|:---|:---|
| | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** |
| | **Coking Coal** | **Thermal Byproduct** | **Total Metallurgical Segment** |
| Segment Realized Coal Revenue | $261632 | $12916 | $274548 |
| Tons Sold | 2143 | 308 | 2451 |
| Realized Coal Revenue per Ton Sold | $122.11 | $41.94 | $112.03 |

---

---

| | | | |
|:---|:---|:---|:---|
| | **Three Months Ended December 31, 2025** | **Three Months Ended December 31, 2025** | **Three Months Ended December 31, 2025** |
| | **Coking Coal** | **Thermal Byproduct** | **Total Metallurgical Segment** |
| Segment Realized Coal Revenue | $224647 | $14187 | $238834 |
| Tons Sold | 1966 | 299 | 2265 |
| Realized Coal Revenue per Ton Sold | $114.25 | $47.50 | $105.45 |

---

---

| | | | |
|:---|:---|:---|:---|
| | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** |
| | **Coking Coal** | **Thermal Byproduct** | **Total Metallurgical Segment** |
| Segment Realized Coal Revenue | $213082 | $14516 | $227598 |
| Tons Sold | 1874 | 442 | 2316 |
| Realized Coal Revenue per Ton Sold | $113.70 | $32.83 | $98.26 |

---

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, royalties, production taxes and credits 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.

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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):

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** |
| | **High CV Thermal** | **Metallurgical** | **PRB** | **Core Marine Terminal** | **Idle and Other** | **Eliminations** | **Consolidated** |
| Cost of Sales | $427198 | $284369 | $166303 | $8230 | $8795 | $(15710) | $879185 |
| **Less: Adjustments to Reconcile to Segment Cash Cost of Coal Sold** |  |  |  |  |  |  |  |
| Transportation Costs | 84716 | 66734 | 3707 |  |  |  | 155157 |
| Intersegment Transportation Costs | 14657 | 1053 |  |  |  | (15710) |  |
| Cost of Sales from Idled Operations |  |  |  |  | 4480 |  | 4480 |
| Insurance Reimbursements - Fire Costs |  | (9723) |  |  |  |  | (9723) |
| Terminal Operating Costs |  |  |  | 8230 |  |  | 8230 |
| Other Non-Active Mining Costs |  |  |  |  | 4315 |  | 4315 |
| Segment Cash Cost of Coal Sold | $327825 | $226305 | $162596 | $— | $— | $— | $716726 |
| Tons Sold | 7703 | 2451 | 11918 |  |  |  |  |
| Cash Cost of Coal Sold per Ton | $42.56 | $92.35 | $13.64 |  |  |  |  |

---

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| | **Three Months Ended December 31, 2025** | **Three Months Ended December 31, 2025** | **Three Months Ended December 31, 2025** | **Three Months Ended December 31, 2025** | **Three Months Ended December 31, 2025** | **Three Months Ended December 31, 2025** | **Three Months Ended December 31, 2025** |
| | **High CV Thermal** | **Metallurgical** | **PRB** | **Core Marine Terminal** | **Idle and Other** | **Eliminations** | **Consolidated** |
| Cost of Sales | $425553 | $325629 | $175539 | $7813 | $17656 | $(17715) | $934475 |
| **Less: Adjustments to Reconcile to Segment Cash Cost of Coal Sold** |  |  |  |  |  |  |  |
| Transportation Costs | 73605 | 64158 | 3287 |  |  |  | 141050 |
| Intersegment Transportation Costs | 15920 | 1795 |  |  |  | (17715) |  |
| Cost of Sales from Idled Operations | 11124 | 25262 |  |  | 9501 |  | 45887 |
| Terminal Operating Costs |  |  |  | 7813 |  |  | 7813 |
| Other Non-Active Mining Costs |  |  |  |  | 8155 |  | 8155 |
| Segment Cash Cost of Coal Sold | $324904 | $234414 | $172252 | $— | $— | $— | $731570 |
| Tons Sold | 7844 | 2265 | 12647 |  |  |  |  |
| Cash Cost of Coal Sold per Ton | $41.42 | $103.49 | $13.62 |  |  |  |  |

---

------

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** |
| | **High CV Thermal** | **Metallurgical** | **PRB** | **Core Marine Terminal** | **Idle and Other** | **Eliminations** | **Consolidated** |
| Cost of Sales | $397290 | $324163 | $135898 | $7825 | $21390 | $(16270) | $870296 |
| **Less: Adjustments to Reconcile to Segment Cash Cost of Coal Sold** |  |  |  |  |  |  |  |
| Transportation Costs | 78175 | 76266 | 2740 |  |  |  | 157181 |
| Intersegment Transportation Costs | 15554 | 716 |  |  |  | (16270) |  |
| Cost of Sales from Idled Operations |  | 36406 |  |  | 4644 |  | 41050 |
| Terminal Operating Costs |  |  |  | 7825 |  |  | 7825 |
| Other Non-Active Mining Costs |  |  |  |  | 16746 |  | 16746 |
| Segment Cash Cost of Coal Sold | $303561 | $210775 | $133158 | $— | $— | $— | $647494 |
| Tons Sold | 7097 | 2316 | 10707 |  |  |  |  |
| Cash Cost of Coal Sold per Ton | $42.78 | $91.00 | $12.44 |  |  |  |  |

---

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, Merger-related expenses and fair value adjustments of commodity derivative instruments. 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 table presents a reconciliation by reportable segment of adjusted EBITDA to net income (loss), the most directly comparable GAAP financial measure (in thousands):

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** |
| | **High CV Thermal** | **Metallurgical** | **PRB** | **Core Marine Terminal** | **Other and Corporate** | **Consolidated** |
| Net Income (Loss) | $72958 | $(12895) | $577 | $14503 | $(54099) | $21044 |
| Income Tax Benefit |  |  |  |  | (427) | (427) |
| Interest Expense, net |  |  |  |  | 6444 | 6444 |
| Depreciation, Depletion and Amortization | 52676 | 70861 | 8300 | 1479 | 12979 | 146295 |
| Other Adjustments |  |  |  |  | 6534 | 6534 |
| Adjusted EBITDA | $125634 | $57966 | $8877 | $15982 | $(28569) | $179890 |

---

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Free cash flow is a non-GAAP financial measure, defined as net cash provided by operating activities plus proceeds from sales of assets and unrestricted cash proceeds from the Merger with Arch Resources, Inc., less capital expenditures and investments in mining-related activities. Management believes that this measure is meaningful to investors because management reviews cash flows generated from operations and non-core asset sales after taking into consideration capital expenditures due to the fact that these expenditures are considered necessary to maintain and expand the company's asset base and are expected to generate future cash flows from operations. It is important to note that free cash flow does not represent the residual cash flow available for discretionary expenditures, since other non-discretionary expenditures, such as mandatory debt service requirements, are not deducted from the measure. The following table presents a reconciliation of free cash flow to net cash provided by operating activities, the most directly comparable GAAP financial measure (in thousands):

---

| | |
|:---|:---|
| | **Three Months Ended<br>March 31, 2026** |
| **Net Cash Provided by Operating Activities** | $119400 |
| Capital Expenditures | (73097) |
| Proceeds from Sales of Assets | 9211 |
| **Free Cash Flow** | $55514 |

---

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**Cautionary Statement Regarding Forward-Looking Statements**

This communication contains certain "forward-looking statements" within the meaning of federal securities laws. Forward-looking statements may be identified by words such as "years ahead," "look forward" and similar expressions. Forward-looking statements are not statements of historical fact and reflect Core's current views about future events. No assurances can be given that the forward-looking statements contained in this communication will occur as projected, and actual results may differ materially from those projected. Forward-looking statements are based on current expectations, estimates and assumptions that involve a number of risks and uncertainties that could cause actual results to differ materially from those projected. These risks and uncertainties include, without limitation, uncertainties regarding the ability of Core to mine, upgrade, process, and extract rare earth elements and critical minerals from its existing mines, including uncertainties regarding the financial impacts of such activities; risks related to the recently announced CEO transition; risks related to the prior occurrence of combustion-related activity at Core's Leer South mine and the risk of future occurrences; the increase in combustion-related gases at Core's Leer South mine; deterioration in economic conditions or changes in consumption patterns of our customers may decrease demand for our products, impair our ability to collect customer receivables and impair our ability to access capital; volatility and wide fluctuation in coal prices based upon a number of factors beyond our control; an extended decline in the prices we receive for our coal; significant downtime of our equipment or inability to obtain equipment, parts or raw materials; decreases in the availability of, or increases in the price of, commodities or capital equipment used in our coal mining operations; our reliance on major customers, our ability to collect payment from our customers and uncertainty in connection with our customer contracts; our inability to acquire additional coal reserves or resources that are economically recoverable; decreases in coal consumption patterns for steel production, electric power generation and industrial applications; the availability and reliability of transportation facilities and other systems that deliver our coal to market and fluctuations in transportation costs; a loss of our competitive position; inflation that could result in higher costs and decreased profitability; foreign currency fluctuations that could adversely affect the competitiveness of our coal abroad; risks related to the fact that a significant portion of our production is sold in international markets (and may grow) and our compliance with export control and anti-corruption laws; coal users switching to other fuels in order to comply with various environmental standards related to coal combustion emissions; the impact of current and future regulations to address climate change, the discharge, disposal and clean-up of hazardous substances and wastes and employee health and safety on our operating costs as well as on the market for coal; the risks inherent in coal operations, including being subject to unexpected disruptions caused by adverse geological conditions, equipment failure, delays in moving longwall equipment, railroad derailments or strikes, security breaches or terroristic acts and other hazards, delays in the completion of significant construction or repair of equipment, fires, explosions, seismic activities, accidents and weather conditions; failure to obtain or renew surety bonds, letters of credit or insurance coverages on acceptable terms; the effects of coordinating our operations with oil and natural gas drillers and distributors operating on our land; our inability to obtain financing for capital expenditures on satisfactory terms; the effects of our securities being excluded from certain investment funds as a result of environmental, social and corporate governance ("ESG") practices; the effects of global conflicts on commodity prices and supply chains; the effect of new or existing laws, regulations, tariffs, executive orders or other trade measures; our inability to find suitable joint venture partners, acquisition targets or similar investments or integrating the operations of future acquisitions or investments into our operations; obtaining, maintaining and renewing governmental permits and approvals for our coal operations; the effects of asset retirement obligations, employee-related long-term liabilities and certain other liabilities; uncertainties in estimating our economically recoverable coal reserves; defects in our chain of title for our undeveloped reserves or failure to acquire additional property to perfect our title to coal rights; the outcomes of various legal proceedings; the risk of our debt agreements, our debt and changes in interest rates affecting our operating results and cash flows; information theft, data corruption, operational disruption and/or financial loss resulting from a terrorist attack or cyber incident; the potential failure to retain and attract qualified personnel of the company; failure to maintain effective internal control over financial reporting; uncertainty with respect to the company's common stock, potential stock price volatility and future dilution; uncertainty regarding the timing and value of any dividends we may declare; uncertainty as to whether we will repurchase shares of our common stock; inability of stockholders to bring legal action against us in any forum other than the state courts of Delaware; the risk that the businesses of the company and Arch Resources, Inc. will not be integrated successfully after the closing of the Merger; the risk that the anticipated benefits of the Merger may not be realized or may take longer to realize than expected; and other unforeseen factors.

All such factors are difficult to predict, are beyond Core's control, and are subject to additional risks and uncertainties, including those detailed in Core's annual report on Form 10-K for the year ended December 31, 2025, quarterly reports on Form 10-Q, and current reports on Form 8-K that are available on Core's website at www.corenaturalresources.com and on the SEC's website at http://www.sec.gov.

Forward-looking statements are based on the estimates and opinions of management at the time the statements are made. Core does not undertake any obligation to publicly update any forward-looking statement, whether as a result of new information, future events or otherwise, except as required by law. Readers are cautioned not to place undue reliance on these forward-looking statements that speak only as of the date hereof.

------

Source: Core Natural Resources, Inc.

**Contacts:**

Investor:

Deck Slone, (314) 994-2766

investorrelations@coreresources.com

Media:

Erica Fisher, (724) 416-8292

media@coreresources.com

## Exhibit 99.2

![](cnrq12026er-exhibit992001.jpg)

First Quarter 2026 Earnings Supplement May 7, 2026

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![](cnrq12026er-exhibit992002.jpg)

2 FORWARD-LOOKING STATEMENTS This communication contains certain "forward-looking statements" within the meaning of federal securities laws. Forward-looking statements may be identified by words such as "years ahead," "look forward" and similar expressions. Forward-looking statements are not statements of historical fact and reflect Core Natural Resources, Inc.'s ("Core" or "the Company") current views about future events. No assurances can be given that the forward-looking statements contained in this communication will occur as projected, and actual results may differ materially from those projected. Forward-looking statements are based on current expectations, estimates and assumptions that involve a number of risks and uncertainties that could cause actual results to differ materially from those projected. These risks and uncertainties include, without limitation, uncertainties regarding the ability of Core to mine, upgrade, process, and extract REEs and CMs from its existing mines, including uncertainties regarding the financial impacts of such activities; risks related to the recently announced CEO transition; risks related to the prior occurrence of combustion-related activity at Core's Leer South mine and the risk of future occurrences; the increase in combustion-related gases at Core's Leer South mine; deterioration in economic conditions or changes in consumption patterns of our customers may decrease demand for our products, impair our ability to collect customer receivables and impair our ability to access capital; volatility and wide fluctuation in coal prices based upon a number of factors beyond our control; an extended decline in the prices we receive for our coal; significant downtime of our equipment or inability to obtain equipment, parts or raw materials; decreases in the availability of, or increases in the price of, commodities or capital equipment used in our coal mining operations; our reliance on major customers, our ability to collect payment from our customers and uncertainty in connection with our customer contracts; our inability to acquire additional coal reserves or resources that are economically recoverable; decreases in coal consumption patterns for steel production, electric power generation and industrial applications; the availability and reliability of transportation facilities and other systems that deliver our coal to market and fluctuations in transportation costs; a loss of our competitive position; inflation that could result in higher costs and decreased profitability; foreign currency fluctuations that could adversely affect the competitiveness of our coal abroad; risks related to the fact that a significant portion of our production is sold in international markets (and may grow) and our compliance with export control and anti- corruption laws; coal users switching to other fuels in order to comply with various environmental standards related to coal combustion emissions; the impact of current and future regulations to address climate change, the discharge, disposal and clean-up of hazardous substances and wastes and employee health and safety on our operating costs as well as on the market for coal; the risks inherent in coal operations, including being subject to unexpected disruptions caused by adverse geological conditions, equipment failure, delays in moving longwall equipment, railroad derailments or strikes, security breaches or terroristic acts and other hazards, delays in the completion of significant construction or repair of equipment, fires, explosions, seismic activities, accidents and weather conditions; failure to obtain or renew surety bonds, letters of credit or insurance coverages on acceptable terms; the effects of coordinating our operations with oil and natural gas drillers and distributors operating on our land; our inability to obtain financing for capital expenditures on satisfactory terms; the effects of our securities being excluded from certain investment funds as a result of environmental, social and corporate governance ("ESG") practices; the effects of global conflicts on commodity prices and supply chains; the effect of new or existing laws, regulations, tariffs, executive orders or other trade measures; our inability to find suitable joint venture partners, acquisition targets or similar investments or integrating the operations of future acquisitions or investments into our operations; obtaining, maintaining and renewing governmental permits and approvals for our coal operations; the effects of asset retirement obligations, employee-related long-term liabilities and certain other liabilities; uncertainties in estimating our economically recoverable coal reserves; defects in our chain of title for our undeveloped reserves or failure to acquire additional property to perfect our title to coal rights; the outcomes of various legal proceedings; the risk of our debt agreements, our debt and changes in interest rates affecting our operating results and cash flows; information theft, data corruption, operational disruption and/or financial loss resulting from a terrorist attack or cyber incident; the potential failure to retain and attract qualified personnel of the Company; failure to maintain effective internal control over financial reporting; uncertainty with respect to the Company's common stock, potential stock price volatility and future dilution; uncertainty regarding the timing and value of any dividends we may declare; uncertainty as to whether we will repurchase shares of our common stock; inability of stockholders to bring legal action against us in any forum other than the state courts of Delaware; the risk that the businesses of the Company and Arch Resources, Inc. will not be integrated successfully after the closing of the merger; the risk that the anticipated benefits of the Merger may not be realized or may take longer to realize than expected; and other unforeseen factors. All such factors are difficult to predict, are beyond Core's control, and are subject to additional risks and uncertainties, including those detailed in Core's annual report on Form 10-K for the year ended December 31, 2025, quarterly reports on Form 10-Q, and current reports on Form 8-K that are available on Core's website at www.corenaturalresources.com and on the SEC's website at http://www.sec.gov. Forward-looking statements are based on the estimates and opinions of management at the time the statements are made. Core does not undertake any obligation to publicly update any forward-looking statement, whether as a result of new information, future events or otherwise, except as required by law. Readers are cautioned not to place undue reliance on these forward-looking statements that speak only as of the date hereof.

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![](cnrq12026er-exhibit992003.jpg)

3 FIRST QUARTER 2026 HIGHLIGHTS • Operations execute at a high level, led by strong performances at Leer South and West Elk • Metallurgical segment achieves a significant, quarter-over-quarter increase in sales margins, underpinned by a significant step-down in its cash cost • High calorific value thermal segment delivers solid sales margins even as it navigates elevated electricity costs at the Pennsylvania Mining Complex as well as several weeks of challenging geology at the PAMC • Reports Q1 2026 net income of $21.0 million and Adjusted EBITDA1 of $179.9 million • Generates net cash provided by operating activities of $119.4 million and free cash flow1 of $55.5 million • Returns $47.0 million to stockholders via share repurchases and dividend payments, bringing the total returned to stockholders since the capital return program's inception in February 2025 to $292.1 million 1 Adjusted EBITDA and free cash flow are non-GAAP measures; see the Appendix for a reconciliation of these amounts to the most directly comparable GAAP measures.

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![](cnrq12026er-exhibit992004.jpg)

4 THE PREMIER PURE-PLAY GLOBAL COAL PRODUCER, STRATEGICALLY POSITIONED TO SUPPLY THE WORLD'S GROWING STEEL, INDUSTRIAL, AND ENERGY NEEDS WHILE MANAGING BY OUR CORE VALUES OF SAFETY AND COMPLIANCE, CONTINUOUS IMPROVEMENT, AND FINANCIAL PERFORMANCE 4 Safety-Based Culture Highly skilled workforce with a deeply ingrained, safety-based culture and a goal of zero life-altering accidents, complemented by a deep commitment to environmental stewardship Innovation Leader in its core business and via its Innovations business unit, which is advancing new, coal-based applications in areas such as aerospace and defense Logistical Excellence Industry-leading logistical network anchored by ownership positions in two large-scale East Coast marine export terminals Unmatched Scale 2025 sales volume of 89 million tons and 2025 revenue of $4.2 billion Global Reach Supplies customers in ~25 countries located on five continents with one of the industry's broadest arrays of coal products Strategic Diversification across multiple, high-potential market segments, with strong penetration in fast-growing seaborne markets as well as newly resurgent, AI-driven domestic power markets Longwall Powerhouse ~90% of projected seaborne export volumes from world-class longwall mines Low-Cost Advantage First quartile on cost curve among U.S. metallurgical and seaborne thermal coal suppliers Long-Lived Reserves Decades of high-quality reserves that will support low-cost mining at flagship longwall operations through 2050 Leading Supplier Among largest global suppliers of premium, High-Vol A coking coal Unrivaled Quality Highest calorific value thermal coal supplied to the seaborne marketplace Infrastructure Focus 75% of exports directed to steelmakers, cement manufacturers, and infrastructure providers, as well as other industrial users Compelling Cash Generation Highly cash-generative assets across a wide range of market environments, with a strategic mix of contracted and market- exposed volumes Financial Strength One of the industry's strongest balance sheets and liquidity positions, targeting an approximately net debt neutral cash profile Leading Capital Return Program Industry-leading capital return program weighted towards share repurchases and capable of delivering robust returns across a wide range of market environments Source: Internal and Wood Mackenzie

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![](cnrq12026er-exhibit992005.jpg)

5 11 mines anchored by eight longwalls 89 mm 2025 total tons sold 27 Mtpa export capacity via ownership interests in CMT and DTA KEY STATISTICS Core Marine Terminal ("CMT") Accessible terminal capacity Core Natural Resources headquarters Vancouver Long Beach Houston New Orleans Dominion Terminal Associates ("DTA") (35% interest) CMT (100% owned) High C.V. Thermal Bailey Enlow Fork Harvey PRB Black Thunder Coal Creek DTA (35% owned) LEADING METALLURGICAL AND HIGH C.V. THERMAL PORTFOLIOS SUPPORTED BY STRATEGIC LOGISTICAL NETWORK Metallurgical Leer Leer South Beckley Mountain Laurel Itmann High C.V. Thermal West Elk

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![](cnrq12026er-exhibit992006.jpg)

6 FINANCIAL RESULTS CORE'S STRONGER OPERATIONAL EXECUTION DRIVES A SIGNIFICANT STEP-UP IN FINANCIAL PERFORMANCE AND CASH GENERATION IN Q1 $103.1 $179.9 Q4 2025 Q1 2026 Adjusted EBITDA1 (in millions of $US) • Core delivered a significant step-up in Adjusted EBITDA1 in Q1 as the entire mining portfolio – led by Leer South and West Elk – executed at a substantially improved level • Free cash flow1 more than doubled on a quarter-over-quarter basis $27.0 $55.5 Q4 2025 Q1 2026 Free Cash Flow1 (in millions of $US) 1 Adjusted EBITDA and free cash flow are non-GAAP measures; see the Appendix for a reconciliation of these amounts to the most directly comparable GAAP measures.

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![](cnrq12026er-exhibit992007.jpg)

7 CAPITAL RETURN PROGRAM DURING Q1, CORE RETURNED $47.0 MILLION TO STOCKHOLDERS, BRINGING TOTAL TO $292.1 MILLION SINCE PROGRAM'S LAUNCH 54.0 52.6 51.5 51.2 51.0 50.6 2/20/2025 3/31/2025 6/30/2025 9/30/2025 12/31/2025 3/31/2026 Reduction In Shares Outstanding Since February 20, 2025 (in millions of shares outstanding) Capital Returned Since February 20, 2025, By Method (share repurchases versus dividend payments, in millions of $US) $266.2 (Repurchases) $25.9 (Dividends) (6.6)% • During Q1 2026, Core invested $41.9 million to repurchase 464,600 shares of its common stock at an average share price of $90.23 • Core has invested $266.2 million to repurchase ~3.6 million shares of its common stock, or ~7 percent of shares outstanding as of the program's launch on 2/20/25, at an average share price of $74.92 • Core has now returned a total of $292.1 million to stockholders – in the form of repurchases and dividends – since the capital return program's launch • As of March 31, 2026, Core had $733.8 million of remaining authorization under its existing $1.0 billion share repurchase program

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![](cnrq12026er-exhibit992008.jpg)

8 COMMITTED VOLUMES 2026 CONTRACTED POSITION FOR CORE'S THREE MINING SEGMENTS 3/31/26 High Calorific Value Thermal Segment (projected volumes and committed and priced position, in short tons, and realized coal revenue per ton sold1) Metallurgical Segment (projected coking coal volumes and committed and priced position, in short tons, and realized coal revenue per ton sold1) 28.5 (at $57.85) 30 – 32 Committed / Priced Committed / Unpriced Uncommitted (at midpoint) 3/31/26 3.5 8.6 – 9.4 3.0 3.8 (at $122.40) 4.5 Powder River Basin Segment (projected volumes and committed and priced position, in short tons, and realized coal revenue per ton sold1) 3/31/26 47.8 (at $14.20) 47 – 50 • The high calorific value thermal segment has a committed and priced book of business of 28.5 million tons and the PRB segment has a committed and priced book of business of 47.8 million tons for delivery in 2026, at prices projected to provide attractive margins • In the metallurgical segment, Core has committed 3.8 million tons of coking coal for delivery in 2026, including 2.0 million tons committed to North American customers at an average realized coal revenue per ton sold1 of around $125 1 Core is unable to provide a reconciliation of realized coal revenue per ton sold guidance, which is an operating ratio derived from non-GAAP financial measures, without unreasonable efforts due to the unknown effect, timing and potential significance of certain income statement items. 1.9 0.7 0.6 0.7

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![](cnrq12026er-exhibit992009.jpg)

9 2026 CASH COST GUIDANCE, BY OPERATING SEGMENT Segment Cash Cost1 High Calorific Value Thermal $38.00 - $39.50 Metallurgical $88.00 - $94.00 Powder River Basin $13.00 - $13.50 • The cost performance of the high calorific value thermal segment is expected to benefit from increased volumes and lower costs at the West Elk mine in 2026 • The cost performance of the metallurgical segment is expected to benefit from a full year of longwall production at Leer South in 2026 • The cost performance of the Powder River Basin segment is expected to benefit from another year of strong production levels as well as a full year of lower royalty rates on its federally leased coal in 2026 1 Core is unable to provide a reconciliation of cash cost of coal sold per ton guidance, which is an operating ratio derived from non-GAAP financial measures, without unreasonable efforts due to the unknown effect, timing and potential significance of certain income statement items. COST GUIDANCE

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![](cnrq12026er-exhibit992010.jpg)

10 • During the first year of his current term, President Trump issued a series of executive orders intended to reduce the regulatory burden on America's coal-based power plants and to ensure the long-term preservation of the U.S. coal fleet • On July 4th, the President signed into law the "One Big Beautiful Bill Act," which included provisions that stand to benefit Core ✓ Designation of metallurgical coal as a "critical material" under the Advanced Manufacturing Tax Credit (45X) ✓ Reduction in the royalty rate for federal coal leases ✓ Significant cuts to federal subsidies for intermittent, renewable energy • The Trump Administration has expressed an overarching objective to ensure that America's coal-based power generation fleet – which the Administration views as critical to a reliable, resilient and secure power grid – is preserved and maintained ✓ The Administration has employed Section 202(c) of the Federal Power Act to delay – perhaps indefinitely – the planned retirements of coal- fired generating units in a growing number of states ✓ The U.S. Department of Energy is making funding available to facilitate the modernization of the U.S. coal fleet • The Trump Administration continues to support the development of a domestic rare earth elements industry, steering some funds directly towards the coalfields, where Core continues to evaluate interesting opportunities in both the East and West • The Administration recently reinstated the National Coal Council, which provides another channel for ongoing, in-depth dialogue between coal producers, including Core, and policymakers • Core applauds the President and his Administration for taking these historic steps to help ensure that coal remains a key element of America's future energy supply as well as a stabilizing force in both domestic and international markets RECENT POLICY DEVELOPMENTS THAT SHOULD ENHANCE COAL'S COMPETITIVENESS AND OUTLOOK IN BOTH THE U.S. AND OVERSEAS

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![](cnrq12026er-exhibit992011.jpg)

11 U.S. POWER DEMAND IS PROJECTED TO GROW DRAMATICALLY, SPURRED BY THE AI-DRIVEN DATA CENTER BUILDOUT 10.1% 7.2% 3.6% 2.8% 2.5% 2.3% 2.3% 2.1% 0.9% 0.6% 0% 2% 4% 6% 8% 10% ER C O T SP P P JM C A IS O N o rt h w es t So u th w es t M IS O So u th ea st N YI SO IS O -N E Source: Grid Strategies, Internal Five-Year Growth Forecast (CAGR)Demand growth forecasts have increased more than four-fold since 2022, according to Grid Strategies, driven principally by the projected data center build-out • Grid Strategies projects that overall U.S. power generation will grow by 3.7 percent per year over the next five years – a dramatic increase versus the 20-year trend • Those regions with significant coal-based power generation – including the largest interconnect, PJM – are projected to grow at a very robust rate • Even those regions projected to experience slower-than-average demand growth – such as MISO and the Southeast – are expected to increase output substantially in coming years

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![](cnrq12026er-exhibit992012.jpg)

12 U.S. POWER DEMAND IS CLIMBING AFTER YEARS OF STAGNATION • U.S. power demand increased only modestly during the period from 2004 through 2023 • U.S. power demand increased 2.6% in 2024 and was up an additional 2.4% in 2025 • The AI-driven data center build-out is still in its early stages, which could mean much more such growth to come • Such growth could translate into a profound change in U.S. thermal coal markets Source: EIA for historical data, Internal 3,675 3,704 3,774 3,827 4,700? 2004-2008 2009-2013 2014-2018 2019-2023 2030 Assuming 3% annual average growth U.S. Power Demand (five-year averages in TWH)

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![](cnrq12026er-exhibit992013.jpg)

13 THE AVERAGE CAPACITY FACTOR OF THE U.S. COAL FLEET IS STARTING TO REBOUND – AND HAS SUBSTANTIAL ROOM FOR GROWTH Source: EIA, Internal 73% 41% 43% 49% 30% 35% 40% 45% 50% 55% 60% 65% 70% 75% 80% 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 U.S. Coal Fleet Average Capacity Factor (% capacity factor)

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![](cnrq12026er-exhibit992014.jpg)

14 GLOBAL CEMENT PRODUCTION IN THE WORLD EXCLUDING CHINA IS PROJECTED TO CLIMB MARKEDLY THROUGH 2050 Global Cement Production (in millions of metric tons) Source: Wood Mackenzie, Internal 0 250 500 750 1,000 1,250 1,500 1,750 2,000 2,250 2,500 2,750 3,000 3,250 2 0 0 0 2 0 0 1 2 0 0 2 2 0 0 3 2 0 0 4 2 0 0 5 2 0 0 6 2 0 0 7 2 0 0 8 2 0 0 9 2 0 1 0 2 0 1 1 2 0 1 2 2 0 1 3 2 0 1 4 2 0 1 5 2 0 1 6 2 0 1 7 2 0 1 8 2 0 1 9 2 0 2 0 2 0 2 1 2 0 2 2 2 0 2 3 2 0 2 4 2 0 2 5 2 0 2 6 2 0 2 7 2 0 2 8 2 0 2 9 2 0 3 0 2 0 3 1 2 0 3 2 2 0 3 3 2 0 3 4 2 0 3 5 2 0 3 6 2 0 3 7 2 0 3 8 2 0 3 9 2 0 4 0 2 0 4 1 2 0 4 2 2 0 4 3 2 0 4 4 2 0 4 5 2 0 4 6 2 0 4 7 2 0 4 8 2 0 4 9 2 0 5 0 Europe Americas Rest of World Africa Middle East Asia Ex. China The vast majority of the world's cement production relies on coal as a feedstock – with each ton of cement requiring 0.1 to 0.2 tons of coal on average

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![](cnrq12026er-exhibit992015.jpg)

15 GLOBAL SEABORNE DEMAND FOR METALLURGICAL COAL IS EXPECTED TO GROW STEADILY THROUGH MID-CENTURY 100 200 300 400 • Global seaborne metallurgical coal demand is expected to climb through 2050, buoyed by continued economic development and urbanization in India and the rest of Southeast Asia • Based on the consensus estimate, demand – in aggregate – is expected to total around 9 billion tons between 2026 and 2050, which could significantly strain supply availability • Core believes that global underinvestment in coking coal supply – coupled with degradation and depletion of the resource base – will constrain supply growth and push coking coal prices higher over time Projected Global Seaborne Metallurgical Coal Imports (in millions of metric tons) Source: Wood Mackenzie, Internal

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![](cnrq12026er-exhibit992016.jpg)

16 STEEL PRODUCTION CAPACITY GROWTH IN INDIA AND THE REST OF SOUTHEAST ASIA IS PROJECTED TO EXCEED 160 MILLION TONS BY ~2030 8 9 9 21 20 28 8 40 16 40 35 50 RINL AM/NS JSPL TATA SAIL JSW Planned Steel Capacity Additions In India (in millions of metric tons) Planned Steel Capacity Additions In Southeast Asia (in millions of metric tons) 2030 2024 CAPACITY ADDITIONS IN MT BLAST FURNACE SHARE OF NEW Southeast Asia 70 75% Myanmar 8 100% Thailand 5 0% Vietnam 20 43% Cambodia 4 100% Philippines 3 100% Malaysia 14 96% Indonesia 17 93% Source: Public Information, Company Filings, Wood Mackenzie, Internal Planned additions total ~94 million tons versus 2024 baseline, with ~90% utilizing blast furnace technology Planned additions total ~70 million tons versus 2024 baseline, with ~75% utilizing blast furnace technology

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![](cnrq12026er-exhibit992017.jpg)

17 GLOBAL COKING COAL PRODUCTION IN THE PRIMARY, HIGH-QUALITY SUPPLY REGIONS REMAINS WELL BELOW PEAK LEVELS Producer Peak Year Peak Exports (mt) 2024 Exports (mt) 2025 Exports (mt) 2025 Change from Peak (mt) 2025 Change from Peak (%) Australia 2016 189.2 153.0 146.9 (42.3) (22.4%) United States 2012 63.3 51.5 45.1 (18.2) (28.8%) Canada 2013 35.0 28.9 30.7 (4.3) (12.3%) Cumulative 2014 273.3 233.4 222.7 (50.6) (18.5%) Source: Customs Data, GTT, Internal

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![](cnrq12026er-exhibit992018.jpg)

18 • REE and CM Opportunities at Core's Large-Scale Western Operations ✓ Core recently completed a sampling and analysis program at its Powder River Basin mines in collaboration with the University of Wyoming that demonstrated elevated ash-basis concentrations of certain rare earth elements (REEs) and critical minerals (CMs), particularly at the coal seam's top and bottom ✓ Among drill core and grab samples from coal seam margins at Black Thunder, dry ash-basis concentrations averaged in excess of 1,000 parts per million (ppm) for total REEs plus scandium, gallium, and germanium ✓ When converted to a critical mineral oxide (CMO) reporting basis (which includes the 16 REEs plus scandium, gallium, and germanium, with the mass of each element converted to its oxide form), ash-basis concentrations at Black Thunder and Coal Creek varied between 284 and 3,047 ppm ✓ This enrichment at the coal seam margins is consistent with what was observed during the U.S. Department of Energy-sponsored CORE-CM Project and reported by other operators in the Powder River Basin ✓ Primary magnetic rare earth element oxides (i.e., oxides of neodymium, praseodymium, dysprosium, and terbium) accounted for 20% of the total CMOs, and oxides of scandium, gallium, and germanium accounted for 17% of the total CMOs ✓ Core is exploring a strategy to leverage the great scale of its PRB operations – which produced approximately 51 million tons of coal in 2025 – in the areas of selective mining, upgrading, and extraction of REEs and CMs • REE and CM Opportunities at Core's Large-Scale Eastern Operations ✓ While concentrations at Core's eastern operations were somewhat less elevated, the large flow rates and readily accessible nature of byproduct streams at the PAMC, Leer and Leer South operations could offer unique opportunities for further upgrading ✓ Geochemical analysis of samples collected from the fine coal refuse streams at the PAMC and Leer operations showed an average dry ash-basis CMO concentration of 444 ppm, with a range of 344 to 568 ppm ✓ Primary magnetic REE oxides accounted for 16% of total CMOs, and oxides of scandium, gallium, and germanium accounted for 29% ✓ The scale of the PAMC's preparation plant is unparalleled among U.S. coal mines and yields ~3 million tons per year of fine coal waste that is already very fine and can be readily diverted for further processing, and Leer and Leer South are proximal and could add to this economy of scale POTENTIAL FUTURE OPTIONALITY IN RARE EARTH ELEMENTS AND CRITICAL MINERALS ARENA

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![](cnrq12026er-exhibit992019.jpg)

19 • The U.S. Department of Energy announced in August that it intends to issue nearly $1 billion of funding focused on securing the American critical minerals and materials supply chain, with some of this funding directed specifically toward critical minerals recovery from coal industry-based feedstocks • Core is now commencing the next phase of its REE and CM evaluation, which will include an expanded drilling program intended to facilitate additional characterization of the potential resource • Core is also engaging with technology and engineering providers and expects to launch an RFP process in coming months • The Core Innovations team also continues to advance its substantial raft of next generation coal applications and products in areas of strategic national interest, including aerospace, defense, and battery technology POTENTIAL FUTURE OPTIONALITY IN RARE EARTH ELEMENTS AND CRITICAL MINERALS ARENA – NEXT STEPS

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![](cnrq12026er-exhibit992020.jpg)

20 $413 $307 Tax Exempt Bonds $489 $143 $33 Liquidity Sources at 3/31/26 Total Debt at 3/31/26 Total Liquidity = $935 MillionRevolving Credit Facility Availability Cash and Cash Equivalents Equipment Leases and Other Debt MAINTAINING A STRONG BALANCE SHEET THAT SUPPORTS SUBSTANTIAL FINANCIAL FLEXIBILITY Equipment Leases • At 3/31/26, Core had $935.4 million of total liquidity, including $412.7 million in cash and cash equivalents • The significant majority of Core's debt consists of unsecured, tax-exempt bonds with an initial 10-year term (maturing in Q1 2035) and a weighted-average interest rate of 5.3 percent • Adding to its financial flexibility, Core has a $600 million revolving credit facility and a $250 million securitization facility Core Has a Strong Balance Sheet and Targets a Roughly Net Debt1 Neutral Cash Position (in millions of $US) Net Debt1 = $37 Million A/R Securitization Facility Availability 1 Net debt is a non-GAAP measure; see the Appendix for a reconciliation of this non-GAAP measure to the most directly comparable GAAP measure.

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![](cnrq12026er-exhibit992021.jpg)

21 NON-GAAP RECONCILIATIONS High CV Thermal Metallurgical PRB Core Marine Terminal Other and Corporate Consolidated Net Income (Loss) 72,958$(12,895)$577$14,503$(54,099)$21,044$ Income Tax Benefit — — — — (427) (427) Interest Expense, net — — — — 6,444 6,444 Depreciation, Depletion and Amortization 52,676 70,861 8,300 1,479 12,979 146,295 Other Adjustments — — — — 6,534 6,534 Adjusted EBITDA 125,634$57,966$8,877$15,982$(28,569)$179,890$ 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, Merger-related expenses and fair value adjustments of commodity derivative instruments. 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 table presents a reconciliation by reportable segment of adjusted EBITDA to net income (loss), the most directly comparable GAAP financial measure for the three months ended March 31, 2026 (in thousands). Three Months Ended March 31, 2026

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![](cnrq12026er-exhibit992022.jpg)

22 NON-GAAP RECONCILIATIONS - CONTINUED High CV Thermal Metallurgical PRB Core Marine Terminal Other and Corporate Consolidated Net Income (Loss) 68,045$(87,137)$(519)$14,842$(74,212)$(78,981)$ Income Tax Benefit — — — — (30,389) (30,389) Interest Expense, net — — — — 5,855 5,855 Depreciation, Depletion and Amortization 51,738 66,295 7,936 1,450 51,823 179,242 Other Adjustments — — — — 27,402 27,402 Adjusted EBITDA 119,783$(20,842)$7,417$16,292$(19,521)$103,129$ The following table presents a reconciliation by reportable segment of adjusted EBITDA to net income (loss), the most directly comparable GAAP financial measure for the three months ended December 31, 2025 (in thousands). Three Months Ended December 31, 2025

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![](cnrq12026er-exhibit992023.jpg)

23 NON-GAAP RECONCILIATIONS - CONTINUED Three Months Ended Three Months Ended March 31, 2026 December 31, 2025 Net Cash Provided by Operating Activities $119,400 $107,310 Capital Expenditures (73,097) (81,277) Proceeds from Sales of Assets 9,211 1,000 Investments in Mining-Related Activities — (77) Free Cash Flow $55,514 $26,956 Free cash flow is a non-GAAP financial measure, defined as net cash provided by operating activities plus proceeds from sales of assets and unrestricted cash proceeds from the Merger with Arch Resources, Inc., less capital expenditures and investments in mining-related activities. Management believes that this measure is meaningful to investors because management reviews cash flows generated from operations and non-core asset sales after taking into consideration capital expenditures due to the fact that these expenditures are considered necessary to maintain and expand the company's asset base and are expected to generate future cash flows from operations. It is important to note that free cash flow does not represent the residual cash flow available for discretionary expenditures, since other non-discretionary expenditures, such as mandatory debt service requirements, are not deducted from the measure. The following table presents a reconciliation of free cash flow to net cash provided by operating activities, the most directly comparable GAAP financial measure for the three months ended March 31, 2026 and December 31, 2025 (in thousands).

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![](cnrq12026er-exhibit992024.jpg)

24 NON-GAAP RECONCILIATIONS - CONTINUED March 31, 2026 Total Long-Term Debt $317,252 Finance Lease Obligations 94,378 Current Portion of Long-Term Debt 43,418 Add: Unamortized Debt Issuance Costs 6,362 Less: Advance Royalty Commitments (11,407) Total Consolidated Indebtedness $450,003 Less: Cash on Hand (412,708) Net Debt $37,295 Net debt is defined as total consolidated indebtedness minus cash on hand. The following table presents a reconciliation of net debt to the most directly comparable GAAP financial measure for the three months ended March 31, 2026 (in thousands).

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