| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng | 90% | MT | 395.63 | USD | 20251209 |
| Shandong Qiancheng | China national standards | MT | 395.63 | USD | 20251209 |
| Shandong Qiancheng | 90% | MT | 395.68 | USD | 20251208 |
| Shandong Qiancheng | China national standards | MT | 1045.73 | USD | 20251208 |
| Shandong Qiancheng | Industrial Grade | MT | 508.73 | USD | 20251208 |
| Shandong Qiancheng | China national standards | MT | 395.68 | USD | 20251208 |
| Shandong Qiancheng | China national standards | MT | 1045.95 | USD | 20251207 |
| Shandong Qiancheng | Industrial Grade | MT | 508.84 | USD | 20251207 |
| Shandong Qiancheng | 90% | MT | 395.77 | USD | 20251207 |
| Shandong Qiancheng | China national standards | MT | 395.77 | USD | 20251207 |