China Railway Signal & Communication Shanghai Engineering Bureau Group Co., Ltd. (herein after referred to CRSCS), a wholly-owned subsidiary company of China Railway Signal & Communication Corporation under State-owned Assets Supervision and Administration Commission of the State Council (SASAC). CRSCS is a professionalized construction enterprise with national A-class certificate with business involving the system integration in communications, signal, electric power, and information network engineering. CRSCS is capable of providing the whole-packaged technical services and solutions associate with engineering design, consultation, construction, testing and maintenance in the engineering fields of communication, signal, electric power, and information network systems. With 6 wholly-owned subsidiaries, holding subsidiaries and 8 branch offices, headquarter of CRSCS is located in Shanghai. The marketing network of the CRSCS can be found in most of the country.