The company is represented by wang yongqiang, the municipal market supervisory authority, and operates on the basis of environmental promotion services, the manufacture and sale of ecological and environmental materials (without hazardous chemicals) and the manufacture and sale of synthetic materials (without dangerous chemicals); the sale of chemical products (other than licensed chemical products); the sale of temperature-preserving materials; the sale of fire-proofing materials; the sale of fire-resistant materials; the sale of high-performance sealed materials; and the sale of sealed items. (projects subject to legal approval may not operate without the approval of the relevant department)