Core Natural Resources, Inc.

For the period ended Dec 31, 2025. Filed Feb 17, 2026.

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A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Feb 17, 2026

CNR$82.28+3.7%Stored close · as of Nov 9, 2026

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Contents

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, as of the 17th day of February, 2026.

CORE NATURAL RESOURCES, INC.
By:	/s/ JAMES A. BROCK
	James A. Brock
	Chair and Chief Executive Officer
	(Principal Executive Officer)
By:	/s/ MITESHKUMAR B. THAKKAR
	Miteshkumar B. Thakkar
	President and Chief Financial Officer
	(Principal Financial Officer)

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed as of the 17th day of February, 2026, by the following persons on behalf of the registrant in the capacities indicated:

Richard A. Navarre
Signature	Title
/s/ JAMES A. BROCK	Chair and Chief Executive Officer
James A. Brock	(Principal Executive Officer)
/s/ MITESHKUMAR B. THAKKAR	President and Chief Financial Officer
Miteshkumar B. Thakkar	(Principal Financial Officer)
/s/ JOHN M. ROTHKA	Chief Accounting Officer
John M. Rothka	(Principal Accounting Officer)
*	Lead Independent Director
*	Director
Valli Perera
*	Director
Joseph P. Platt
*	Director
Patrick A. Kriegshauser
*	Director
Holly Keller Koeppel
*By /s/ ROSEMARY L. KLEIN
Rosemary L. Klein,
Attorney-in-Fact

ContentsView on SEC.gov

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