China Railway Construction Corporation Limited operates a construction business in Mainland China and internationally through five segments: Construction Operations; Planning, Design and Consultancy Operations; Manufacturing Operations; Real Estate Development Operations; and Other Business Operations. The Construction Operations segment builds infrastructure such as railways, highways, rail transits, water conservancy and hydropower, housing, municipal engineering, bridges, tunnels, airports, and wharves. The Planning, Design and Consultancy Operations segment provides planning, design, and consultancy services for civil engineering and infrastructure projects. The Manufacturing Operations segment develops, produces, and sells mechanical equipment including railway track maintenance and tunnel boring machinery, and manufactures track systems. The Real Estate Development Operations segment develops, constructs, and sells residential and commercial properties. The Other Business Operations segment includes trade and logistics, finance and insurance, and highway operation activities, as well as the purchase and sale of goods and materials and project investment and financial services. Founded in 1948 and headquartered in Beijing, the People's Republic of China, the company is a subsidiary of China Railway Construction Corporation Group.