| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng | 90% | MT | 394.1 | USD | 20251012 |
| Shandong Qiancheng | China national standards | MT | 1041.55 | USD | 20251012 |
| Shandong Qiancheng | China national standards | MT | 394.1 | USD | 20251012 |
| Shandong Qiancheng | Industrial Grade | MT | 506.7 | USD | 20251012 |
| Shandong Qiancheng | China national standards | MT | 394.1 | USD | 20251011 |
| Shandong Qiancheng | Industrial Grade | MT | 506.7 | USD | 20251011 |
| Shandong Qiancheng | China national standards | MT | 1041.55 | USD | 20251011 |
| Shandong Qiancheng | 90% | MT | 394.1 | USD | 20251011 |
| Shandong Qiancheng | China national standards | MT | 1041.55 | USD | 20251010 |
| Shandong Qiancheng | Industrial Grade | MT | 506.7 | USD | 20251010 |