| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng | 90% | MT | 396.12 | USD | 20251211 |
| Shandong Qiancheng | China national standards | MT | 1046.88 | USD | 20251211 |
| Shandong Qiancheng | Industrial Grade | MT | 509.29 | USD | 20251211 |
| Shandong Qiancheng | China national standards | MT | 396.12 | USD | 20251211 |
| Shandong Qiancheng | China national standards | MT | 395.74 | USD | 20251210 |
| Shandong Qiancheng | Industrial Grade | MT | 508.81 | USD | 20251210 |
| Shandong Qiancheng | China national standards | MT | 1045.89 | USD | 20251210 |
| Shandong Qiancheng | 90% | MT | 395.74 | USD | 20251210 |
| Shandong Qiancheng | Industrial Grade | MT | 508.67 | USD | 20251209 |
| Shandong Qiancheng | China national standards | MT | 1045.6 | USD | 20251209 |