Chen Liangyu
On 25 September 2006, Han became the acting Party Committee Secretary of Shanghai after the dismissal of Chen Liangyu over corruption probes during the Shanghai pension scandal. With what were believed to be stern messages sent by Party general secretary Hu Jintao, Han led a municipal task force to crack down on the corruption in Shanghai, and has since then been believed to be a Hu loyalist. His tenure as the interim party secretary in Shanghai lasted a mere five months, when on 24 March 2007, Xi Jinping was 'parachuted' into the office of Shanghai Party Secretary from the same post in the neighbouring province of Zhejiang. Xi later became the member of Politburo Standing Committee after 17th Party Congress in October 2007. Han proved to be a 'political survivor' however, having served under party secretaries Chen Liangyu, Xi Jinping, and Yu Zhengsheng in the Mayor's office.