Producers attend a ceremony to bid farewell to the Long March-5 rocket, China's largest carrier rocket, in Tianjin Port, north China, Aug. 25, 2016. Two rocket-carrying ships, Yuanwang-21 and Yuanwang-22, departed on Friday to transport the Long March-5 to launch base in Wenchang in south China's Hainan Province. Long March-5 is scheduled to be launched later this year. (Xinhua/Jin Liwang)