Heilongjiang Transport Development Co., Ltd., together with its subsidiaries, engages in the investment, development, construction, operation, and management of toll roads in China. The company is involved in the toll operation management and daily maintenance of Harbin-Dalian Expressway. It also engages in road maintenance; sales of petroleum, cement, solar thermal utilization, solar thermal power generation, and charging piles products; investment activities; advertising; operation of road freight transport stations; motor vehicle charging sales; leasing services; real estate development and operation; and new material technology research and development. In addition, the company manufactures graphite and carbon products; parking services; catering management; manufacturing and sale of photovoltaic equipment and components; and provides information technology consulting, energy-saving management. solar power generation technology, and engineering management services. Heilongjiang Transport Development Co., Ltd. was incorporated in 2010 and is headquartered in Harbin, China.