| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Xintai Chem | China national standards | MT | 850.16 | USD | 20251024 |
| Zibo Xintai Chem | China national standards | MT | 853.1 | USD | 20251023 |
| Zibo Xintai Chem | China national standards | MT | 848.21 | USD | 20251020 |
| Zibo Xintai Chem | China national standards | MT | 894.43 | USD | 20251015 |
| Zibo Xintai Chem | China national standards | MT | 887.06 | USD | 20251014 |
| Zibo Xintai Chem | China national standards | MT | 894.28 | USD | 20251013 |
| Zibo Xintai Chem | China national standards | MT | 912.06 | USD | 20251010 |
| Zibo Xintai Chem | China national standards | MT | 907.15 | USD | 20251009 |
| Zibo Xintai Chem | China national standards | MT | 899.3 | USD | 20250930 |
| Zibo Xintai Chem | China national standards | MT | 903.09 | USD | 20250929 |