博鳌亚洲论坛
Siew, in his capacity as the honorary chairman of the Cross-Straits Common Market Foundation, attended the Boao Forum for Asia held in April 2014 in Hainan where he met with Premier Li Keqiang. He reiterated the intention of Taiwan to join the Regional Comprehensive Economic Partnership. He also told Li that Taiwan and Mainland China should push for greater bilateral trade liberalization to build a comprehensive economic relationship and express Taiwan's wish to join the regional economy.