| Vendor | Spec | Unit | Price | Currency | Date |
| Jiangsu LeeMan Chem | China national standards | MT | 513.32 | USD | 20260309 |
| Jiangsu LeeMan Chem | China national standards | MT | 478.09 | USD | 20260306 |
| Jiangsu LeeMan Chem | China national standards | MT | 449.11 | USD | 20260306 |
| Jiangsu LeeMan Chem | China national standards | MT | 396.71 | USD | 20260225 |