HNRG Hallador Energy Co - 8-K

Item 1.04 Mine Safety - Reporting of Shutdowns and Patterns of Violations.

On July 21, 2010, the Dodd-Frank Wall Street and Consumer Protection Act (the “Act”) was enacted. Section 1503 of the Act requires a Current Report on Form 8-K if a company is issued an imminent danger order under Section 107(a) of the Federal Mine Safety and Health Act of 1977 (the “Mine Act”) by the federal Mine Safety and Health Administration (“MSHA”).

On May 28, 2026, Sunrise Coal, LLC, a subsidiary of Hallador Energy Company, received an imminent danger order under Section 107(a) of the Mine Act at Oaktown Fuels, Mine No. 1 ("Oaktown"), located in Knox County, Indiana (MSHA ID# 12-02394). On that date, an MSHA representative alleged that the employee of an independent trucking company was observed climbing onto an elevated position on the side of a truck bed without wearing fall protection.  The order required the employee of the independent contractor to immediately climb down from the truck.  No injuries resulted from the condition; no employees of Sunrise Coal were affected and production at the mine was not interrupted. Sunrise Coal disputes the issuance of an imminent danger order to it, given that the alleged imminent danger condition was created solely by the acts or omissions of an independent contractor operating on the mine site and reserves the right to contest the order and any related citation or proposed assessment.

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