On the afternoon of October 23, 2009, Chinese Premier Wen Jiabao left Beijing by special plane to attend the 12th China-ASEAN Summit, the 12th ASEAN plus 3 Summit and the 4th East Asia Summit in Hua Hin of Thailand at the invitation of Thai Prime Minister Abhisit Vejjajiva.

Wen's entourage includes Foreign Minister Yang Jiechi, Minister in charge of the National Development and Reform Commission Zhang Ping, Minister of Finance Xie Xuren, Minister of Commerce Chen Deming, Director of the Research Office of the State Council Xie Fuzhan, Chinese Ambassador to the ASEAN Xue Hanqin, Vice Secretary-General of the State Council and Director of the Premier's Office Qiu Xiaoxiong, and Assistant Foreign Minister Hu Zhengyue.