Wang Hai: 1979.10--1982.07 Studying medicine at Xinzhou District Health School, Shanxi Province; 1982.08--1983-09 Medical and surgical clinician at Ekou Center, Dai County, Shanxi Province; 1983.09--1995.07 Dai County, Shanxi Province Police officer, technician, and technical section chief of the Public Security Bureau (including full-time paid study in the public security management major of Shanxi Police Officer College from 1987.09 to 1989.07); 1995.07 to 2001.06 Deputy General Manager and Party Branch Secretary of Dai County Company of Shanxi Coal Transportation and Marketing Corporation; 2001.07 --2003.07 Manager of the Management Department of Shenzhen Zhenhuafu Electronics Co., Ltd.; 2003.07--2005.04 Assistant to the General Manager and Manager of the Military Industry Department of Shenzhen Zhenhuafu Electronics Co., Ltd.; 2007.06--2010.01 Deputy General Manager and Party Branch of Shenzhen Zhenhuafu Electronics Co., Ltd. Secretary; 2010.01--2014.01 Executive Deputy General Manager, Vice Chairman, Party Branch Secretary of Shenzhen Zhenhua Fu Electronics Co., Ltd.; 2014.01--2014.07 Acting General Manager of Shenzhen Zhenhua Fu Electronics Co., Ltd.; 2014.08--2018.04 Shenzhen Zhenhua Fu Electronics General Manager of the Co., Ltd.; 2018.05--Secretary of the Committee of China Zhenhua (Group) Xinyun Electronic Components Co., Ltd.