Where is Cheng from? Vice Chairman of Tin Industry Co., Ltd.

Cheng: Male, Han nationality,1born in May, 1965, bachelor degree, senior engineer title, party member, CPC, joined the work in June. He has served as deputy section chief, deputy mine manager and mine manager of Makeng Production Technology Section of Yunxi Company, deputy mine manager and mine manager of Yunxi Company, deputy chief engineer, chief of staff and director of production department of Yunxi Company, assistant and deputy chief engineer of Yunxi Group Company, deputy general manager of Yunnan Tin Industry Group (Holdings) Co., Ltd., current deputy secretary, vice chairman and general manager of Party Committee of Yunnan Tin Industry Group (Holdings) Co., Ltd., and deputy secretary of Party Committee of Yunnan Tin Industry Co., Ltd.