| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng | China national standards | MT | 394.22 | USD | 20250916 |
| Shandong Qiancheng | China national standards | MT | 394.06 | USD | 20250915 |
| Shandong Qiancheng | Industrial Grade | MT | 506.64 | USD | 20250915 |
| Shandong Qiancheng | China national standards | MT | 1041.43 | USD | 20250915 |
| Shandong Qiancheng | 90% | MT | 394.06 | USD | 20250915 |
| Shandong Qiancheng | 90% | MT | 394.32 | USD | 20250909 |
| Shandong Qiancheng | China national standards | MT | 1042.14 | USD | 20250909 |
| Shandong Qiancheng | Industrial Grade | MT | 506.99 | USD | 20250909 |
| Shandong Qiancheng | China national standards | MT | 394.32 | USD | 20250909 |
| Shandong Qiancheng | China national standards | MT | 1041.83 | USD | 20250908 |