China Railway Communication signal Co., Ltd. is a Chinese company mainly engaged in rail transit control system engineering. The company mainly operates three business divisions. The Rail Transit Control system Division provides rail transit control system design integration, equipment manufacturing and system delivery services related to product design and development. The project general contracting branch mainly provides municipal project contracting and other project construction services. Other divisions are mainly engaged in trading business such as coal, chemical raw materials and mineral powder. The company operates in domestic and foreign markets.