Group 1 - China has launched a fresh food supply service for residents of Yongxing Island, the largest island in the Xisha Islands, with a recent delivery of fresh fruits, vegetables, and meat by air [1] - The supply chain involves sourcing products from suppliers in Hainan, airlifting them approximately 400 kilometers to Yongxing Island, and delivering them to local supermarkets, significantly reducing transportation time and enhancing freshness [1] - The current airlifted vegetable offerings include around 37 varieties, catering to diverse shopping needs, including local produce and premium packaged vegetables from major suppliers in Haikou [1] Group 2 - Since its establishment in July 2012, Sansha City has been steadily developing public infrastructure on Yongxing Island, including banks, parks, cinemas, restaurants, and sports facilities [2] - The airport on Yongxing Island, expanded in 2014, serves as a crucial military-civilian dual-use airport in the South China Sea [2] - A desalination plant in Sansha City, operational since October 2016, produces approximately 1,000 tons of fresh water daily, supporting the island's sustainability [2] - A new commercial center recently opened on Yongxing Island, providing a comprehensive space for shopping, dining, culture, and leisure, aimed at enhancing social services for military and civilian residents [2]