Hainan Airlines is an airline headquartered in Haikou, Hainan, China. It is the largest civilian-run and majority state-owned air transport company, making it the fourth-largest airline in terms of fleet size in the People's Republic of China, and the tenth-largest airline in Asia in terms of passengers carried. It operates scheduled domestic and international services on 500 routes from Hainan and nine locations on the mainland, as well as charter services. Its main base is located at Haikou Meilan International Airport, with hubs at Beijing Capital International Airport and Xi'an Xianyang International Airport and several focus cities.
SOURCE: Wikipedia