| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Xintai Chem | China national standards | MT | 861.01 | USD | 20251124 |
| Zibo Xintai Chem | China national standards | MT | 860.67 | USD | 20251121 |
| Zibo Xintai Chem | China national standards | MT | 847.27 | USD | 20251117 |
| Zibo Xintai Chem | China national standards | MT | 861.28 | USD | 20251114 |
| Zibo Xintai Chem | China national standards | MT | 860.9 | USD | 20251110 |
| Zibo Xintai Chem | China national standards | MT | 860.79 | USD | 20251106 |
| Zibo Xintai Chem | China national standards | MT | 860.77 | USD | 20251103 |
| Zibo Xintai Chem | China national standards | MT | 856.82 | USD | 20251029 |
| Zibo Xintai Chem | China national standards | MT | 856.67 | USD | 20251028 |
| Zibo Xintai Chem | China national standards | MT | 853.54 | USD | 20251027 |