CSR ERQI CO., LTD.

CSR ERQI CO., LTD. is a wholly-owned subsidiary of CSR Corporation Limited, focused on the manufacture, overhaul, and maintenance of railway freight wagons, as well as the production of wagon spare parts. The company is recognized for research and development of specialized flat wagons, including dual-purpose flat wagons, container flat wagons, double-deck wagons for transporting cars, and other special-purpose designs.

Based in Fengtai District, Beijing, the company serves domestic railway wagon demand while exporting complete wagons and spare parts to overseas markets including Asia, Africa, and Europe. Its engineering approach supports end-to-end product development and manufacturing, combining digital design and simulation with core processes such as machining, welding, pressure processing, and casting process simulation.

The company operates dedicated testing and validation resources, including a vehicle strength test room and multiple test lines and benches for impact, bogie parameters, and other experimental work. With a long industrial heritage and an established technology center, CSR ERQI supports customers with both new-build capacity and large-scale overhaul capability across freight wagon platforms and critical components.