Sun Hai, male, Han nationality, 45 years old, party member, CPC, once served as technical director, deputy section chief and section chief of Pangzhuang Coal Mine of Xuzhou Mining Group, deputy chief engineer and chief engineer of Quantai Coal Mine, chief engineer of Pangzhuang Coal Mine and mine manager of Zhangji Coal Mine. He is currently the chairman of Baoji Qinyuan Coal Industry Co., Ltd. and the deputy chief engineer and assistant general manager of Xuzhou Mining Group.