Recently, major coal producing cities have announced their coal production in 2021。According to the data released by Ordos Municipal People's Government, Yulin Municipal People's Government, Shuozhou Municipal Bureau of Statistics and Datong Municipal Bureau of Statistics, in 2021, the raw coal output above the scale of the four coal cities is respectively: 6.7亿吨、5.500 million tons, 200 million tons and 1.500 million tons, total 15.700 million tons, accounting for 38 percent of the country's coal production above the scale.6%。