Staff members remove the original paint of an inbound airplane at a one-stop aircraft maintenance base of Hainan Free Trade Port in Haikou, south China's Hainan Province, Feb. 17, 2025. Since the one-stop aircraft maintenance base of Hainan Free Trade Port was put into use in 2022, a total of 83 aircraft and 17 engines have been maintained and repaired in the bonded zone, with a total value of 45.05 billion yuan (about 6.2 billion U.S. dollars). (Photo: Xinhua)

Staff members work on an inbound airplane at a one-stop aircraft maintenance base of Hainan Free Trade Port in Haikou, south China's Hainan Province, Feb. 17, 2025. Since the one-stop aircraft maintenance base of Hainan Free Trade Port was put into use in 2022, a total of 83 aircraft and 17 engines have been maintained and repaired in the bonded zone, with a total value of 45.05 billion yuan (about 6.2 billion U.S. dollars). (Photo: Xinhua)

A staff member works on an inbound airplane at a one-stop aircraft maintenance base of Hainan Free Trade Port in Haikou, south China's Hainan Province, Feb. 17, 2025. Since the one-stop aircraft maintenance base of Hainan Free Trade Port was put into use in 2022, a total of 83 aircraft and 17 engines have been maintained and repaired in the bonded zone, with a total value of 45.05 billion yuan (about 6.2 billion U.S. dollars). (Photo: Xinhua)

Staff members work on an inbound airplane at a one-stop aircraft maintenance base of Hainan Free Trade Port in Haikou, south China's Hainan Province, Feb. 17, 2025. Since the one-stop aircraft maintenance base of Hainan Free Trade Port was put into use in 2022, a total of 83 aircraft and 17 engines have been maintained and repaired in the bonded zone, with a total value of 45.05 billion yuan (about 6.2 billion U.S. dollars). (Photo: Xinhua)