Is there any teaching in No.3 Mine?

Yes According to the information of Teaching No.3 Mine, SDIC Dengfeng Teaching No.3 Mine is located in Xuzhuang Town, Dengfeng City, and belongs to SDIC Coal Zhengzhou Energy Development Co., Ltd., which is a central enterprise in Henan Province controlled by the State Development and Investment Corporation (SDIC Group). The registered capital of the company is 67.2 million yuan.