| Vendor | Spec | Unit | Price | Currency | Date |
| Wanhua Chem | China national standards | MT | 1347.34 | USD | 20260306 |
| Wanhua Chem | China national standards | MT | 1201.37 | USD | 20260303 |
| Wanhua Chem | China national standards | MT | 1184.35 | USD | 20260302 |
| Wanhua Chem | China national standards | MT | 1143.51 | USD | 20260209 |
| Wanhua Chem | China national standards | MT | 1160.94 | USD | 20260129 |
| Wanhua Chem | China national standards | MT | 1056.18 | USD | 20260115 |
| Wanhua Chem | China national standards | MT | 1041.25 | USD | 20260112 |
| Wanhua Chem | China national standards | MT | 1041.25 | USD | 20260112 |
| Wanhua Chem | China national standards | MT | 1041.25 | USD | 20260112 |
| Wanhua Chem | China national standards | MT | 996.73 | USD | 20260105 |