The registration address of s&t is at no. 304 in the town of grand tum village in the city of guangzhou, habei province. The registration authority is the market supervision authority of the city of deep county, which is represented by a legal person and operates on general projects such as: the development of new materials technology; the promotion of new materials; the manufacture of structures; the sale of structures; the manufacture of metal structures; the sale of metal structures; the manufacture of rubber products; the sale of rubber products; the sale of sealed filling materials; the sale of metal products; the manufacture of plastics; the sale of plastics products; the manufacture of penta gold products; the wholesale distribution of five gold products; the retail sale of five gold products; the manufacture of water-proof products; the sale of construction water-proof products; the sale of construction products; the sale of non-hazard products; the sale of non-metallic products; the sale of glass and metal products; the sale of fibres and steel products in public buildings. Licensing projects (in addition to projects subject to legal authorization, operating on an autonomous basis under an operating licence): construction of steel bars; electrical, cable and non-metal ship construction. (a project subject to legal approval may only be carried out with the approval of the relevant department, subject to the approval documents or licences of the relevant department)