Ronald C. Keating Form 3 Filing with Power of Attorney for Core Natural Resources

This is a Form 3 filing by Ronald C. Keating, a director of Core Natural Resources, Inc. (ticker: CNR). The filing includes a power of attorney document dated April 30, 2026, that authorizes specific company officers (Chief Legal Officer, General Counsel, Secretary, and Chief Financial Officer) to file Forms 3, 4, and 5 on Keating's behalf regarding his ownership of or transactions in company securities. The power of attorney remains in effect until Keating is no longer required to file these forms. Notably, the filing indicates "noSecuritiesOwned" is set to "1", suggesting Keating currently holds no securities in the company. The filing establishes the reporting framework for future Section 16 filings by a company director.