MTR Corporation Limited, together with its subsidiaries, designs, constructs, operates, maintains, and invests in railways in Hong Kong, Australia, Mainland of China, Sweden, the United Kingdom, and internationally. It operates through Hong Kong Transport Operations; Hong Kong Station Commercial Businesses; Hong Kong Property Rental ad Management Businesses; Mainland of China and International Railway, Property Rental and Management Businesses; Mainland of China Property Development; and Other Businesses segments. The company operates a rail network, including domestic and cross-boundary services, the Airport Express, and a light rail and bus feeder system. Its network consists of 230.9 kilometers of rail; 11 rail lines; 93 stations; and 68 light rail stops. The company also offers intercity railway services. In addition, it leases station retail space in stations, as well as advertising space in trains and stations; and enables telecommunication services on the railway system. Further, it develops, invests in, manages, and leases investment properties, including shopping malls and offices; operates cable cars, and the Octopus access control system; and offers railway consultancy and project management services, as well as railway management, engineering, and technology training services. Additionally, the company administers the operation of MTR academy; and provides general building and maintenance, engineering and other consultancy, property broking and administrative, tourist, guided tour, insurance, financing, project bidding, business management and consultancy, commercial facilities strategy and consultancy, corporate training management, marketing, promotion, and operational support services. MTR Corporation Limited was founded in 1975 and is headquartered in Kowloon Bay, Hong Kong.