Sun Yu, male, Han nationality, is a native of Yongning, Guangxi Zhuang Autonomous Region. He was born in 1957, joined the CPC in 1976, and graduated from Central China Teachers College in 1997. He is an advanced economist. Sun held leading posts in Bailiu County and Guigang City of his native Guangxi Zhuang Autonomous Region. He served as assistant mayor of Guigang City in the early 1990's. He was elected vice-chairman of the Guangxi Zhuang Autonomous Regional People's Government in 1998.