| Longhu Investment and Trading Co., LTD. |
| Shanghai Huyi Steel Trading Co., LTD. |
| Shanghai Longyin Steel Trading Co., LTD. |
| Shanghai Ganglong International Trading Co., LTD. |
| Shanghai Longma Trading Co., LTD. |
| Jiangsu Longteng Trading Co., LTD. |
| Suzhou Longhu Trading Co., LTD. |