The registration address of the company is located in the village of yuk yuk yuk, grand township, hong kong province of hebei. The registration authority is the grand city municipal market supervision authority, with legal representatives and includes environmental technology promotion services; the manufacture and sale of eco-environmental materials (without dangerous chemicals), the production and sale of fireproof materials, the production and sale of insulation and soundproof materials, the manufacture and sale of building waterproof scroll products, the manufacture and sale of asbestos products, the manufacture and sale of light construction materials, the manufacture of glass products, the manufacture and sale of cement products; the sale of specialized chemical products (other than hazardous chemicals), the sale of synthetic materials (other than dangerous chemicals), the sale of warm materials, the sale of fire-resistant materials, the sale of building materials, the sale and sale of anti-corruption materials, the sale of fertilizers; the import and export of goods; the construction and construction of specialized works; and the management and restoration of soil pollution services. (projects subject to legal approval may not operate without the approval of the relevant department)