| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng | 90% | MT | 395.28 | USD | 20251108 |
| Shandong Qiancheng | China national standards | MT | 1044.67 | USD | 20251108 |
| Shandong Qiancheng | Industrial Grade | MT | 508.22 | USD | 20251108 |
| Shandong Qiancheng | China national standards | MT | 395.28 | USD | 20251108 |
| Shandong Qiancheng | China national standards | MT | 395.28 | USD | 20251107 |
| Shandong Qiancheng | Industrial Grade | MT | 508.22 | USD | 20251107 |
| Shandong Qiancheng | China national standards | MT | 1044.67 | USD | 20251107 |
| Shandong Qiancheng | 90% | MT | 395.28 | USD | 20251107 |
| Shandong Qiancheng | 90% | MT | 395.12 | USD | 20251106 |
| Shandong Qiancheng | China national standards | MT | 1044.24 | USD | 20251106 |