Core Natural Resources, Inc.
01/12/2026 | Press release | Distributed by Public on 01/12/2026 16:28
Mine Safety Disclosure (Form 8-K)
Item 1.04 Mine Safety - Reporting of Shutdowns and Patterns of Violations.
On January 8, 2026, Mingo Logan Coal LLC, a subsidiary of Core Natural Resources, Inc., received an imminent danger order under section 107(a) of the Federal Mine Safety and Health Act of 1977 at the Mountaineer II mine located in Logan County, West Virginia. The order states that an inspector found an accumulation of elevated methane levels in an isolated section of the mine. Mine personnel promptly took appropriate actions to alleviate the condition and restored acceptable methane levels. The Mine Safety and Health Administration has terminated the 107(a) order, and no injuries or illnesses resulted from the temporary condition.
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