Tang Longbin (Concurrently) (1991.10-1992.02)

Chen Di (Concurrently) (1992.02-1995.01)

Wang Fengxiang (1995.03-1998.03)

Yao Peisheng (1998.03-2000.04)

Wang Kaiwen (2000.04-2003.07)

Ji Yanchi (2003.08-2005.11)

Zhang Limin (2005.11-2008.07)

Cheng Wenjv (2008.08-2010.07)

Hu Yeshun(2010.08-)