| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yifei Science and Trade Co., Ltd. | China national standards | MT | 1054.76 | USD | 20250922 |
| Shandong Yifei Science and Trade Co., Ltd. | China national standards | MT | 1125.08 | USD | 20250922 |
| Shandong Yifei Science and Trade Co., Ltd. | China national standards | MT | 1124.73 | USD | 20250919 |
| Shandong Yifei Science and Trade Co., Ltd. | China national standards | MT | 1054.44 | USD | 20250919 |