Dadijing Mine is located in Dongsheng Coal Field and it was officially put into production on April 1^st, 2008 after the resources integration and technical reformation. Covering an area of 11.6013 km², the coal mine has recoverable reserves of 77,158,200 tons as of December 31^st, 2017, according to the assessment of the Ministry of Land and Resources and the resources the company has consumed for the production. The coal mine has four major coal seams of 1.5~3.4 meters thick. The calorific value of the high quality coal produced is 5,300~5,570 kilocalorie/kg.