| Vendor | Spec | Unit | Price | Currency | Date |
| Heze Jiangyuan Chem | China national standards | MT | 85.73 | USD | 20250926 |
| Heze Jiangyuan Chem | China national standards | MT | 85.85 | USD | 20250925 |
| Heze Jiangyuan Chem | China national standards | MT | 85.85 | USD | 20250924 |
| Heze Jiangyuan Chem | China national standards | MT | 85.85 | USD | 20250923 |
| Heze Jiangyuan Chem | China national standards | MT | 85.79 | USD | 20250922 |
| Heze Jiangyuan Chem | China national standards | MT | 87.17 | USD | 20250919 |
| Heze Jiangyuan Chem | China national standards | MT | 87.22 | USD | 20250918 |