No registered address of tin-hong-hong science ltd. Is located in room 100-14 of the golden eagle industrial park, no. 100 no. 1st east tong rock, nishi hill, nishi city, with the registration authority being wu xiaoling, representing the legal entity, and covering general projects: metalwork development; metal construction; metal packaging and materials manufacture; non-ferrous metal pressure processing; metal surface treatment and thermal treatment processing; metal cutting and welding equipment manufacturing; metal sealing; metal sales; sale of metal materials; sale of metal packagings and materials; wholesale distribution of penta gold products; retailing of gold products (in addition to legally authorized projects, operating on an autonomous basis with a licence)