Air China Limited, together with its subsidiaries, provides air passenger, air cargo, and airline-related services in Mainland China, Hong Kong, Macau, Taiwan, Europe, North America, Japan, Korea, the Asia Pacific, and internationally. The company operates through Airline Operations and Other Operations segments. It provides aircraft engineering, airport ground handling, and other airline-related services. The company is also involved in the import and export trading activities; and provision of cabin, airline catering, air ticketing, human resources, aircraft overhaul and maintenance, and financial services. It operates approximately 699 passenger aircraft. The company was founded in 1988 and is headquartered in Beijing, the People's Republic of China. Air China Limited is a subsidiary of China National Aviation Holding Corporation Limited.