(260328) -- HAIKOU, March 28, 2026 (Xinhua) -- Inbound passengers go through border control at Sanya Phoenix International Airport in Sanya, south China's Hainan Province, March 27, 2026. The Hainan Free Trade Port (FTP), the world's largest free trade port by area, marks the 100th day of island-wide special customs operations on Friday. In the course of the past 100 days, the number of visa-free inbound passengers jumped by over 54 percent year on year. (Photo by Meng Xushun/Xinhua)