| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yifei | Industrial Grade | MT | 1058.13 | USD | 20251031 |
| Shandong Yifei | China national standards | MT | 1128.67 | USD | 20251031 |
| Shandong Yifei | Industrial Grade | MT | 1058.68 | USD | 20251029 |
| Shandong Yifei | China national standards | MT | 1058.68 | USD | 20251029 |
| Shandong Yifei | China national standards | MT | 1411.57 | USD | 20251029 |
| Shandong Yifei | China national standards | MT | 1129.26 | USD | 20251029 |
| Shandong Yifei | Industrial Grade | MT | 1129.26 | USD | 20251029 |
| Shandong Yifei | China national standards | MT | 1129.26 | USD | 20251029 |
| Shandong Yifei | China national standards | MT | 1410.82 | USD | 20251027 |
| Shandong Yifei | China national standards | MT | 1058.11 | USD | 20251027 |