XISHUANGBANNA, March 22, 2016 -- Porters work to load a cargo ship by Guanlei port, southwest China's Yunnan Province, March 21,2016. As China's first waterway hub connecting Southeast Asia's Mekong River and China's Lancang River, Guanlei Port handles over 350,000 tons of commodity trade in recent three years, worth of 635 million US dollars, from and to Southeast Asian countries. (Xinhua/Hu Chao)