The registered address of Tianjin Donggang Iron and Steel Co., Ltd. is located 500 meters east of Science and Technology Avenue in Daegu Zhuang Town, Jinghai District, Tianjin. The registration authority is the Jinghai District Market Supervision Administration of Tianjin, and the legal representative is Xu Shangdong. The business scope includes steel pipe manufacturing and processing; Wholesale and retail of metal materials, building materials, chemical products, and hardware products; Import and export of goods and technology (excluding those restricted by laws and regulations). (For projects that require approval by law, business activities can only be carried out after approval by relevant departments)