The registration address of tianjin chango copper industries ltd. Is located at no. 12 of the qing dynasty, industrial development zone, double street town, north tianjin city. The registration authority is the market supervision authority of the north fat, tienjin city. The legal entity is represented by ben-hong, and operates on general projects: non-ferrous metal extension processing; sale of metal materials; sale of non-ferrous metal alloy; sale of metal ores; sale of construction materials; sale of machinery and equipment; sale of electronics products; and wholesale of hardware products. (in addition to projects subject to legal authorization, operating activities are carried out autonomously on the basis of a legal licence.)