The registration address of zhang jia hak is located in room 1515 of the petrochemical trading building in the zhang jia hak baath zone. The registration authority is the market supervision authority of zhang jia hak park in jiangsu province. The legal entity is represented by wang jiancheng and operates on the basis of the sale of fertilizers, chemical raw materials and products (except dangerous chemicals), textile raw materials and products, metal materials, construction materials, hardware, electronics, timber, rubber products, import and export operations of goods and technologies for self-employment and agency (except goods and technologies for which the state limits companies ' operations or bans imports and exports). (projects subject to legal approval may not operate without the approval of the relevant department)