The registration address of henancheng clean energy science and technology ltd. Is located at 4th floor of yapo international square, 85th street, jindong, in henan free trade experiment area (junc); the registration authority is the service centre of the zhengzhou market supervisory authority in the free trade area, represented by legal persons, and includes general projects: technical services, technology development, technical advice, technology exchange, technology transfer, technology promotion; information technology advisory services; building cleaning services; professional cleaning, cleaning services; domestic services; engineering management services; specialized equipment repair; electrical equipment repair; daily electrical services; cultural premises management services (excluding diagnostic services); pension services; scientific and technological intermediation services; indoor air pollution management services; hazardous biological services; environmental sanitation ...