| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun | 90% | MT | 395.12 | USD | 20251030 |
| Shandong Zhenkun | 90% | MT | 395.17 | USD | 20251028 |
| Shandong Zhenkun | 90% | MT | 395.17 | USD | 20251028 |
| Shandong Zhenkun | China national standards | MT | 987.92 | USD | 20251028 |
| Shandong Zhenkun | Industrial Grade | MT | 430.45 | USD | 20251028 |
| Shandong Zhenkun | China national standards | MT | 324.6 | USD | 20251028 |
| Shandong Zhenkun | China national standards | MT | 324.49 | USD | 20251027 |
| Shandong Zhenkun | Industrial Grade | MT | 430.3 | USD | 20251027 |
| Shandong Zhenkun | China national standards | MT | 987.57 | USD | 20251027 |
| Shandong Zhenkun | 90% | MT | 395.03 | USD | 20251027 |