China Railway 12th Bureau Group Co., Ltd. is a wholly-owned subsidiary of China Railway Construction Co., Ltd., which has the first-class general contracting qualification of railway engineering construction, housing construction, highway, water conservancy and hydropower engineering construction and a number of professional contracting qualifications. The business scope covers railways, highways, bridges, municipal administration, urban light rail, subway, water conservancy and hydropower, airports, electric power, communications, signals, electrified catenary, high-rise buildings, granaries and so on. The business scope covers the whole country and radiates overseas.