| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng | Industrial Grade | MT | 504.75 | USD | 20250818 |
| Shandong Qiancheng | China national standards | MT | 1037.55 | USD | 20250818 |
| Shandong Qiancheng | 90% | MT | 392.59 | USD | 20250818 |
| Shandong Qiancheng | 90% | MT | 392.32 | USD | 20250816 |
| Shandong Qiancheng | China national standards | MT | 1036.84 | USD | 20250816 |
| Shandong Qiancheng | China national standards | MT | 392.32 | USD | 20250816 |
| Shandong Qiancheng | Industrial Grade | MT | 504.41 | USD | 20250816 |