1July 1982 to1May 1986, engaged in technical management in Dongpo Coal Mine of Tongchuan Mining Bureau;
1June, 1986 to1July, 1997, worked in the production technology department of Shaanxi Coal Industry Department as an engineer, assistant researcher and deputy director.
65438+1From August 1997 to August 2000, he served as deputy director and director of the Infrastructure Department of Shaanxi Coal Industry Department.
From August 2000 to May 2006, 5438+0, served as the first deputy general manager in Huangling Mining Company (presided over the overall administrative work);
2001-In February 2003, he served as Party Secretary and Deputy General Manager in Huangling Mining Company;
From February 2003 to September 2006, he served as executive director, general manager and deputy secretary of the Party Committee of Shaanxi Chang Bin Mining Area Development and Construction Company;
From September to 20, 200612, he served as member of the Party Committee of Shaanxi Coal Chemical Group Co., Ltd. and executive director, general manager and deputy secretary of Chang Bin Company;
From July 20 12 to April 20 14, he served as deputy general manager of Shaanxi Coal Chemical Industry Group Corporation;
From April 2065438 to April 2004, he served as general manager, deputy secretary of the Party Committee and director of Shaanxi Coal Chemical Group.