Guangxi regional government Chairman Ma Biao addresses the opening ceremony of the 6th China-ASEAN Exposition (CAEXPO) at the Nanning International Convention and Exhibition Center in Nanning, capital of southwest China's Guangxi Zhuang Autonomous Region, on October 20, 2009. The 6th China-ASEAN Exposition (CAEXPO) kicked off on Tuesday. [Xinhua]