According to statistics provided by China National Coal Association and MIIT, there were 20 raw coal producers in China with annual output surpassing 30 million tons in 2021. Of which, five producers produced 30-50 million tons, nine produced 50-100 million tons, one achieved 100-200 million tons, four turned out 200-400 million tons, and one churned out more than 500 million tons, with the 20 companies together producing nearly 2.66 billion tons of raw coal, which represented an increase of 78.70 million tons or 3.1% from the previous year and accounted for 65.3% of the country's total output.