As a subsidiary company of China South Locomotive & Rolling Stock Corporation limited (CSR for short, listed on both Shanghai and Hongkong Stock exchanges), CSR Qishuyan Institute Co., Ltd. (CSR QSYRI for short)was located in Changzhou City, Jiangsu Province, established in 1959.

The company is mainly engaged in the R&D of new materials, processes, equipments and technologies for railway equipment industry. It is a professional research institution in China Locomotive &Rolling stock material and manufacturing process of rail transit equipment as well as a high-tech industrialization base for key parts of rail transit equipment.