| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun | 90% | MT | 394.65 | USD | 20251017 |
| Shandong Zhenkun | 90% | MT | 394.54 | USD | 20251016 |
| Shandong Zhenkun | 90% | MT | 394.54 | USD | 20251016 |
| Shandong Zhenkun | China national standards | MT | 986.36 | USD | 20251016 |
| Shandong Zhenkun | Industrial Grade | MT | 429.77 | USD | 20251016 |
| Shandong Zhenkun | China national standards | MT | 324.09 | USD | 20251016 |
| Shandong Zhenkun | Industrial Grade | MT | 429.61 | USD | 20251015 |
| Shandong Zhenkun | China national standards | MT | 985.98 | USD | 20251015 |
| Shandong Zhenkun | China national standards | MT | 323.97 | USD | 20251015 |
| Shandong Zhenkun | 90% | MT | 394.39 | USD | 20251015 |