Airports of Thailand Public Company Limited (AOT) operates and manages six international airports in Thailand, including Suvarnabhumi Airport and Don Mueang International Airport. The company provides aeronautical services such as landing and parking, passenger service, and aircraft service charges. It also offers non-aeronautical services, including concession revenues, office and property rentals, hotel and restaurant businesses, ground services, and security services. AOT was founded in 1979 and is headquartered in Bangkok, Thailand.