Chen Yunlin (R), president of the mainland-based Association for Relations Across the Taiwan Straits (ARATS), shakes hands with Chiang Pin-kung (L), chairman of the Taiwan-based Straits Exchange Foundation (SEF), before talks began in north China's Tianjin Municipality, Oct. 20, 2011. Negotiators of ARATS and SEF held a new round of talks here on Thursday. This is the seventh round of talks between the two sides over the past three years. (Xinhua/He Junchang)