| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng | Industrial Grade | MT | 506.84 | USD | 20250908 |
| Shandong Qiancheng | China national standards | MT | 1041.83 | USD | 20250908 |
| Shandong Qiancheng | 90% | MT | 394.21 | USD | 20250908 |
| Shandong Qiancheng | 90% | MT | 394.01 | USD | 20250906 |
| Shandong Qiancheng | China national standards | MT | 1041.31 | USD | 20250906 |
| Shandong Qiancheng | Industrial Grade | MT | 506.59 | USD | 20250906 |
| Shandong Qiancheng | China national standards | MT | 394.01 | USD | 20250906 |
| Shandong Qiancheng | 90% | MT | 393.87 | USD | 20250902 |
| Shandong Qiancheng | China national standards | MT | 1040.95 | USD | 20250902 |
| Shandong Qiancheng | Industrial Grade | MT | 506.41 | USD | 20250902 |