Core Natural Resources, INC. 8-K Filing
Ticker: CNR · Form: 8-K · Filed: Dec 18, 2025 · CIK: 1710366
Sentiment: neutral
Filing Stats: 541 words · 2 min read · ~2 pages · Grade level 11.3 · Accepted 2025-12-18 07:08:51
Key Financial Figures
- $0.01 — ange on which registered Common Stock, $0.01 par value CNR New York Stock Exchange
Filing Documents
- cnr-20251218.htm (8-K) — 23KB
- cnr8-k12182025xexhibit991.htm (EX-99.1) — 17KB
- corelogoa.jpg (GRAPHIC) — 5KB
- 0001710366-25-000035.txt ( ) — 169KB
- cnr-20251218.xsd (EX-101.SCH) — 2KB
- cnr-20251218_lab.xml (EX-101.LAB) — 22KB
- cnr-20251218_pre.xml (EX-101.PRE) — 13KB
- cnr-20251218_htm.xml (XML) — 3KB
01 Regulation FD Disclosure
Item 7.01 Regulation FD Disclosure. On December 18, 2025, Core Natural Resources, Inc. (the "Company") issued a press release announcing that the Company has resumed longwall operations at its Leer South mine in West Virginia and providing an update regarding the productivity levels of its West Elk mine in Colorado. A copy of the press release is furnished as Exhibit 99.1 hereto and is incorporated herein by reference. The information contained in this Item 7.01 and Exhibit 99.1 shall be considered "furnished" and shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended, nor shall it be deemed incorporated by reference into any reports or filings with the Securities and Exchange Commission, whether made before or after the date hereof, except as expressly set forth by specific reference in such a filing.
01 Financial Statements and Exhibits
Item 9.01 Financial Statements and Exhibits. (d) Exhibits. Exhibit 99.1 Press release of Core Natural Resources, Inc. dated December 18, 2025 Exhibit 104 Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)
SIGNATURES
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. Core Natural Resources, Inc. (Registrant) By: /s/ MITESHKUMAR B. THAKKAR Miteshkumar B. Thakkar Chief Financial Officer and President Dated: December 18, 2025