1. Maanshan Iron and Steel General Factory: Located in Maanshan City, Anhui Province, it is the headquarters of Maanshan Iron and Steel Company.
2. Masteel Stainless Steel Branch: located in Zhangjiagang City, Jiangsu Province, specializing in the production of stainless steel plates, coils, pipes, wires, profiles and other products.
3. Masteel Special Steel Branch: Located in Maanshan City, Anhui Province, it produces alloy structural steel, special steel, high-speed steel, stainless steel and other special steels.
4. Masteel New Materials Co., Ltd.: Located in Zhangjiagang City, Jiangsu Province, it produces high-end corrosion-resistant stainless steel coils.