| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng | China national standards | MT | 394.65 | USD | 20251017 |
| Shandong Qiancheng | Industrial Grade | MT | 507.41 | USD | 20251017 |
| Shandong Qiancheng | China national standards | MT | 1043.0 | USD | 20251017 |
| Shandong Qiancheng | 90% | MT | 394.65 | USD | 20251017 |
| Shandong Qiancheng | 90% | MT | 394.54 | USD | 20251016 |
| Shandong Qiancheng | China national standards | MT | 1042.72 | USD | 20251016 |
| Shandong Qiancheng | Industrial Grade | MT | 507.27 | USD | 20251016 |
| Shandong Qiancheng | China national standards | MT | 394.54 | USD | 20251016 |
| Shandong Qiancheng | Industrial Grade | MT | 507.08 | USD | 20251015 |
| Shandong Qiancheng | China national standards | MT | 1042.33 | USD | 20251015 |