| Vendor | Spec | Unit | Price | Currency | Date |
| Wanhua Chem | China national standards | MT | 1301.37 | USD | 20260309 |
| Wanhua Chem | China national standards | MT | 1014.39 | USD | 20260305 |
| Wanhua Chem | China national standards | MT | 940.83 | USD | 20260303 |
| Wanhua Chem | China national standards | MT | 878.24 | USD | 20260212 |
| Wanhua Chem | China national standards | MT | 920.56 | USD | 20260209 |
| Wanhua Chem | China national standards | MT | 934.31 | USD | 20260205 |
| Wanhua Chem | China national standards | MT | 975.68 | USD | 20260202 |
| Wanhua Chem | China national standards | MT | 945.95 | USD | 20260129 |
| Wanhua Chem | China national standards | MT | 916.34 | USD | 20260126 |
| Wanhua Chem | China national standards | MT | 856.36 | USD | 20260115 |