| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng | Industrial Grade | MT | 506.65 | USD | 20250930 |
| Shandong Qiancheng | 90% | MT | 394.06 | USD | 20250930 |
| Shandong Qiancheng | China national standards | MT | 1041.45 | USD | 20250930 |
| Shandong Qiancheng | 90% | MT | 393.87 | USD | 20250929 |
| Shandong Qiancheng | China national standards | MT | 1040.95 | USD | 20250929 |
| Shandong Qiancheng | Industrial Grade | MT | 506.41 | USD | 20250929 |
| Shandong Qiancheng | China national standards | MT | 393.87 | USD | 20250929 |
| Shandong Qiancheng | China national standards | MT | 393.52 | USD | 20250928 |
| Shandong Qiancheng | Industrial Grade | MT | 505.96 | USD | 20250928 |
| Shandong Qiancheng | China national standards | MT | 1040.03 | USD | 20250928 |