Core Natural Resources, Inc. reported a net loss of US$79.0 million, or US$1.54 per diluted share, in the fourth quarter of 2025, with revenue totaling US$1.042 billion. Adjusted EBITDA reached US$103.1 million, including US$36.4 million in fire extinguishment and idle mine costs and US$23.9 million in insurance proceeds related to the Baltimore bridge collapse.

Fourth-quarter sales included 7.8 million tons in the high calorific value thermal segment, 2.0 million tons of coking coal, and 0.3 million tons of thermal byproducts in the metallurgical segment, and 12.6 million tons in the Powder River Basin.

Core secured commitments exceeding 38 million tons for 2026 and future years. The company generated US$27.0 million in free cash flow in Q4 and continued share repurchases under its US$1.0 billion authorization.

Management expects 2026 to mark an inflection point, supported by merger synergies, improved cost performance, higher volumes, incremental insurance proceeds, and strengthening demand in U.S. power, global metallurgical coal, and Southeast Asian steel markets.