| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun | 90% | MT | 395.03 | USD | 20251027 |
| Shandong Zhenkun | 90% | MT | 394.82 | USD | 20251023 |
| Shandong Zhenkun | 90% | MT | 394.82 | USD | 20251023 |
| Shandong Zhenkun | China national standards | MT | 987.06 | USD | 20251023 |
| Shandong Zhenkun | Industrial Grade | MT | 430.07 | USD | 20251023 |
| Shandong Zhenkun | China national standards | MT | 324.32 | USD | 20251023 |
| Shandong Zhenkun | China national standards | MT | 324.26 | USD | 20251021 |
| Shandong Zhenkun | Industrial Grade | MT | 430.0 | USD | 20251021 |
| Shandong Zhenkun | China national standards | MT | 986.89 | USD | 20251021 |
| Shandong Zhenkun | 90% | MT | 394.76 | USD | 20251021 |