China Railway Construction Corporation Limited, together with its subsidiaries, engages in the construction business in Mainland China and internationally. It operates through five segments: Construction Operations; Planning, Design and Consultancy Operations; Manufacturing operations; Real Estate Development Operations; and Other Business Operations. The Construction Operations segment engages in the construction of infrastructure, such as railways, highways, rail transits, water conservancy and hydropower, housing construction, municipal engineering, bridges, tunnels, airports, and wharves. The Plan, Design and Consultancy Operations segment provides planning, design, and consultancy services for civil engineering and infrastructure construction projects, such as railways, highways, urban rail transport, etc. The Manufacturing Operations segment is involved in the research and development, production, and sale of mechanical equipment comprising railway track maintenance and tunnel boring machinery, as well as manufacturing of track systems, etc. The Real Estate Development Operations segment engages in the development, construction, and sale of residential and commercial properties. The Other Business Operations segment includes trade and logistics, finance and insurance, and highway operation activities. In addition, it is involved in the purchase and sales of goods and materials; and offers project investment and financial services. The company was founded in 1948 and is headquartered in Beijing, the People's Republic of China. China Railway Construction Corporation Limited is a subsidiary of China Railway Construction Corporation Group.