China Railway Siyuan Survey & Design Group Co Ltd

China Railway Fourth Survey and Design Institute Group Co., Ltd. (Tie Siyuan) was established in 1953 and is headquartered in Wuhan, Hubei Province. It is a large-scale national comprehensive survey, design and research consulting unit, and a national high-tech enterprise. The comprehensive technical advantage of the industry chain is now a state-owned wholly-owned subsidiary of China Railway Construction Corporation, the world's top 500 enterprises and the world's largest engineering contractor.