On April 13, 2001, Datong, Shanxi Province, registered and established the first domestic professional company engaged in the management and operation of coal processing plants, Datong Dazhong Cleaning Equipment Operation Co., Ltd., to conduct unified management of coal processing plants in Shanxi Province.　　

On August 15, 2006, in order to adapt to the development of the coal selection industry and maintain the continuous growth of its business, Beijing Shengjia Enterprise Operation Management Co., Ltd. was registered in Beijing to operate the Dazhong Baptist Equipment Co., Ltd. in the country. Each coal selection plant conducts unified management.

On December 9, 2011, in order to enhance the influence of the group's brand, in accordance with the unified deployment of the Great Earth Engineering Development Group, Tiandi(Tianjin) Coal Selection Management Co., Ltd. was incorporated in Tianjin to select Shengjia Enterprise Operation Management Co., Ltd. in Beijing. The company is under unified management of various coal mills in the country.