The registration address of ho jia water treatment materials in the city of zhengzhou, henan province, is located at no. 168 conzie road east street in the city of zhengzhou city. The registration authority is the market supervision authority of the city of zheng yi. The legal entity is represented by the cui city and operates on general projects: manufacture of specialized chemical products (excluding hazardous chemicals); manufacture of ecological materials; management of water pollution; manufacture of synthetic materials (excluding hazardous chemicals); manufacture of specialized equipment for environmental protection; production of eco-environmental monitoring and detection instruments; marketing of eco-environmental monitoring and detection instruments; marketing of ecological environmental materials; soil pollution management and rehabilitation services; sale of specialized equipment for environmental protection; water pollution control services; sale of chemical products (without licensed chemical products); sale of specialized chemical products (without dangerous chemicals); environmental advisory services; production of chemical products (without licensed chemical products); sewage treatment and their reuse; development of new materials and equipment; sale of equipment; import and export of goods; import and export of technology (in addition to the legally authorized projects, operating under legal licence)