| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng | China national standards | MT | 394.05 | USD | 20250923 |
| Shandong Qiancheng | China national standards | MT | 393.78 | USD | 20250922 |
| Shandong Qiancheng | Industrial Grade | MT | 506.29 | USD | 20250922 |
| Shandong Qiancheng | China national standards | MT | 1040.7 | USD | 20250922 |
| Shandong Qiancheng | 90% | MT | 393.78 | USD | 20250922 |
| Shandong Qiancheng | 90% | MT | 393.66 | USD | 20250920 |
| Shandong Qiancheng | China national standards | MT | 1040.38 | USD | 20250920 |
| Shandong Qiancheng | Industrial Grade | MT | 506.13 | USD | 20250920 |
| Shandong Qiancheng | China national standards | MT | 393.66 | USD | 20250920 |
| Shandong Qiancheng | China national standards | MT | 1040.38 | USD | 20250919 |