| Vendor | Spec | Unit | Price | Currency | Date |
| Hunan Qilu New Materials Technology Co., Ltd. | China national standards | MT | 989.36 | USD | 20251210 |
| Hunan Qilu New Materials Technology Co., Ltd. | China national standards | MT | 989.41 | USD | 20251205 |
| Hunan Qilu New Materials Technology Co., Ltd. | China national standards | MT | 988.99 | USD | 20251127 |
| Hunan Qilu New Materials Technology Co., Ltd. | China national standards | MT | 988.2 | USD | 20251107 |
| Hunan Qilu New Materials Technology Co., Ltd. | China national standards | MT | 986.62 | USD | 20251017 |
| Hunan Qilu New Materials Technology Co., Ltd. | China national standards | MT | 985.25 | USD | 20251010 |