| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng | Industrial Grade | MT | 506.83 | USD | 20250829 |
| Shandong Qiancheng | China national standards | MT | 1041.81 | USD | 20250829 |
| Shandong Qiancheng | 90% | MT | 394.2 | USD | 20250829 |
| Shandong Qiancheng | 90% | MT | 394.02 | USD | 20250828 |
| Shandong Qiancheng | China national standards | MT | 1041.33 | USD | 20250828 |
| Shandong Qiancheng | China national standards | MT | 394.02 | USD | 20250828 |
| Shandong Qiancheng | Industrial Grade | MT | 506.59 | USD | 20250828 |
| Shandong Qiancheng | Industrial Grade | MT | 506.27 | USD | 20250827 |
| Shandong Qiancheng | China national standards | MT | 393.77 | USD | 20250827 |
| Shandong Qiancheng | China national standards | MT | 1040.67 | USD | 20250827 |