Chinese Vice Commerce Minister Gao Yan (L front) and Secretary for Economy and Finance of the Macao Special Administrative Region (SAR) Tam Pak Yuen (R front) shake hands during a ceremony of signing the agreement to further promote the liberalization of trade in service between the Chinese mainland and the Macao SAR in Macao, south China, Dec. 18, 2014. The agreement will come into effect on March 1 next year. (Xinhua/Lui Siu Wai)