The registration address of the site is in the village of stone on the edge of the old border. The registration authority is liu jianping, the market supervision authority of the old border area of the camp, and the legal person is represented by liu jianping, who operates in the production and sale of molecular sifting series of products (except dangerous chemicals); sale of aluminum oxide and silicon glue; import and export of goods and technology (except goods and technologies whose operation is restricted or prohibited by the above-mentioned project country); except for those prohibited by national laws and administrative regulations, which may only operate after obtaining a licence under the laws and regulations) (projects subject to the approval of the law and subject to the approval of the relevant authorities)