| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 168.76 | USD | 20250922 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 161.73 | USD | 20250922 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 161.68 | USD | 20250921 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 168.71 | USD | 20250920 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 161.68 | USD | 20250919 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 168.81 | USD | 20250918 |
| Hubei Shuanghuan Science and Technology Stock Co., Ltd. | China national standards | MT | 161.78 | USD | 20250918 |