What is the development space of Pingshu Coal Mine in Yangmei?

Yangquan Coal Industry (Group) Co., Ltd. was reformed from Yangquan Mining Bureau and established in 1950. It is one of the first large state-owned coal enterprises confirmed by the state. Don't worry about standardized management and treatment, that is, news reports now, alas! Mainly safety first. Pray often. The annual output is 5 million tons.