| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun | 90% | MT | 394.39 | USD | 20251015 |
| Shandong Zhenkun | 90% | MT | 394.33 | USD | 20251013 |
| Shandong Zhenkun | 90% | MT | 394.33 | USD | 20251013 |
| Shandong Zhenkun | China national standards | MT | 323.91 | USD | 20251013 |
| Shandong Zhenkun | Industrial Grade | MT | 429.54 | USD | 20251013 |
| Shandong Zhenkun | China national standards | MT | 985.82 | USD | 20251013 |
| Shandong Zhenkun | China national standards | MT | 985.25 | USD | 20251012 |
| Shandong Zhenkun | Industrial Grade | MT | 429.29 | USD | 20251012 |
| Shandong Zhenkun | China national standards | MT | 323.72 | USD | 20251012 |
| Shandong Zhenkun | 90% | MT | 394.1 | USD | 20251012 |