It's good to have a bright future in the south of the same coal. Nan Mingxi of Tongmei is the general manager of Tongmei Group, and his hard-working spirit is widely spread in the group. Datong Coal Mine Group Co., Ltd., referred to as Tongmei Group for short, is the third largest coal mine state-owned enterprise in People's Republic of China (PRC), second only to Shenhua Group and China Coal Energy Group. The company is headquartered in Datong, a major coal mine in China.