| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng | Industrial Grade | MT | 506.13 | USD | 20250919 |
| Shandong Qiancheng | China national standards | MT | 1040.38 | USD | 20250919 |
| Shandong Qiancheng | 90% | MT | 393.66 | USD | 20250919 |
| Shandong Qiancheng | 90% | MT | 393.89 | USD | 20250918 |
| Shandong Qiancheng | China national standards | MT | 1041.01 | USD | 20250918 |
| Shandong Qiancheng | China national standards | MT | 393.89 | USD | 20250918 |
| Shandong Qiancheng | Industrial Grade | MT | 506.44 | USD | 20250918 |
| Shandong Qiancheng | 90% | MT | 394.22 | USD | 20250916 |
| Shandong Qiancheng | China national standards | MT | 1041.86 | USD | 20250916 |
| Shandong Qiancheng | Industrial Grade | MT | 506.85 | USD | 20250916 |