| Vendor | Spec | Unit | Price | Currency | Date |
| Hunan Qilu New Materials Technology Co., Ltd. | China national standards | MT | 854.77 | USD | 20251127 |
| Hunan Qilu New Materials Technology Co., Ltd. | China national standards | MT | 995.26 | USD | 20251107 |
| Hunan Qilu New Materials Technology Co., Ltd. | China national standards | MT | 993.67 | USD | 20251017 |
| Hunan Qilu New Materials Technology Co., Ltd. | China national standards | MT | 992.29 | USD | 20251010 |
| Hunan Qilu New Materials Technology Co., Ltd. | China national standards | MT | 991.77 | USD | 20250918 |