There are 506 coal mines in our province, which are distributed in Fushun, Benxi, Dandong, Jinzhou, Liaoyang, Tieling, Fuxin, Chaoyang and Huludao. Among them, 5 provincial state-owned coal enterprises (Fushun Mining Group, Fuxin Mining Group, Tiefa Energy Company, Shenyang Coal Group and Nanpiao Coal and Electricity Company) 3 1 coal mine, 9 coal-producing cities and 475 small coal mines. The geological reserves of coal in the province are about 4.6 billion tons, the recoverable reserves are about 2 billion tons, and the annual output of coal is about 60 million tons.