MACAO, June 21, 2016 (Xinhua) -- Chui Sai On (R), chief executive of Macao Special Administrative Region, shakes hands with Guangdong Governor Zhu Xiaodan after they inked the letter of intent for cooperation on joint participation in the nation's Belt and Road initiative on behalf of their respective government, during an annual conference in Macao, south China, June 21, 2016. China's Macao SAR and Guangdong Province on Tuesday inked 12 pacts during an annual conference here, in a bid to promote the cooperation to a new level. (Xinhua/Cheong Kam Ka)