Chinese Premier Li Keqiang (3rd R) poses for a group photo with Thai Prime Minister Prayuth Chan-ocha (3rd L), Cambodian Prime Minister Hun Sen (2nd R), Lao Prime Minister Thongsing Thammavong (2nd L), Vice President of Myanmar Sai Mauk Kham (1st R), and Vietnamese Deputy Prime Minister Pham Binh Minh (1st L) before the 1st Lancang-Mekong Cooperation Leaders' Meeting in Sanya, south China's Hainan Province, March 23, 2016. (Photo: Xinhua/Rao Aimin)
