Aerial photo taken on Jan. 6, 2022 shows a science park under construction in Yazhou Bay of Sanya, south China's Hainan Province, a ceremony announcing the start of the construction of projects in Hainan free trade port was held here. Construction of 142 projects involving a total investment of 37.3 billion yuan (about 5.85 billion U.S. dollars) started Thursday in south China's Hainan free trade port.[Photo by Yang Guanyu/Xinhua]