65438+September 0988-65438+May 0989, Minister of Labor and Personnel of Yongdeng Cement Plant;
June 20001989-June 10, First Deputy Director of Yongdeng Cement Plant;
1997 July 2000-1 1 month, concurrently general manager of Gansu Qilian Mountain Cement Co., Ltd.;
165438+2000 10 -2006 5438+February 2000, Chairman of Gansu Qilian Mountain Cement Co., Ltd., Director of Yongdeng Cement Plant and General Manager of Gansu Qilian Mountain Building Materials Holding Co., Ltd.;