Core Natural Resources, Inc., together with its subsidiaries, produces, sells, and exports metallurgical and thermal coals in the United States and internationally. It operates through two segments, Pennsylvania Mining Complex (PAMC) and CONSOL Marine Terminal. The PAMC segment engages in the mining, preparing, and marketing of bituminous coal to power generators, industrial end-users, and metallurgical end-users. The CONSOL Marine Terminal segment provides coal export terminal services through the Port of Baltimore.