| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun | 90% | MT | 394.76 | USD | 20251021 |
| Shandong Zhenkun | 90% | MT | 394.52 | USD | 20251020 |
| Shandong Zhenkun | 90% | MT | 394.52 | USD | 20251020 |
| Shandong Zhenkun | China national standards | MT | 986.29 | USD | 20251020 |
| Shandong Zhenkun | Industrial Grade | MT | 429.74 | USD | 20251020 |
| Shandong Zhenkun | China national standards | MT | 324.07 | USD | 20251020 |
| Shandong Zhenkun | China national standards | MT | 324.18 | USD | 20251017 |
| Shandong Zhenkun | Industrial Grade | MT | 429.89 | USD | 20251017 |
| Shandong Zhenkun | China national standards | MT | 986.62 | USD | 20251017 |
| Shandong Zhenkun | 90% | MT | 394.65 | USD | 20251017 |