Henan high-tech environmental technology ltd., located on the 12th floor of building 1, no. 4, science boulevard, no. 89, new technologies industrial development area, zhengzhou, henan province, with legal representation from the market supervision authority of the high-tech industrial development area, zhengzhou city, and covering general projects: technical services, technical development, technical advice, technology exchange, technology transfer, technology promotion; sale of equipment for the protection of the environment; sale of non-metal mines and products; sale of graphite and carbon products; sale of specialized chemical products (other than hazardous chemicals); sale of coal and products; sale of new membrane materials; sale of gas, liquid separation and pure equipment; sale of special labour protection items; sale of special ceramics; sale of metal materials; water environmental pollution services; water-related consultancy services; environmental protection advisory ser...