MTR Corporation Limited designs, constructs, operates, maintains, and invests in railways across Hong Kong, Australia, Mainland China, Macao, Sweden, and the United Kingdom. Its business segments include Hong Kong transport operations, station commercial businesses, property rental and management, property development, Mainland China and international railway and property businesses, and other operations. The company provides passenger services on the domestic mass transit railway, Airport Express, cross-boundary connections, light rail and bus feeder services, and intercity transport. It also engages in railway project management, property development and investment, station commercial activities such as retail and advertising leasing and telecommunications enabling, and offers railway management, engineering, and technology training services. Founded in 1975, MTR Corporation Limited is headquartered in Kowloon Bay, Hong Kong.