| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Dehe Chem | China national standards | MT | 1188.61 | USD | 20260609 |
| Zibo Dehe Chem | China national standards | MT | 1217.04 | USD | 20260608 |
| Zibo Dehe Chem | China national standards | MT | USD | 20260602 | |
| Zibo Dehe Chem | China national standards | MT | USD | 20260529 | |
| Zibo Dehe Chem | China national standards | MT | USD | 20260525 | |
| Zibo Dehe Chem | China national standards | MT | USD | 20260518 | |
| Zibo Dehe Chem | China national standards | MT | USD | 20260428 | |
| Zibo Dehe Chem | China national standards | MT | USD | 20260422 | |
| Zibo Dehe Chem | China national standards | MT | USD | 20260415 | |
| Zibo Dehe Chem | China national standards | MT | USD | 20260408 |