| Vendor | Spec | Unit | Price | Currency | Date |
| Wanhua Chem | China national standards | MT | 1166.42 | USD | 20260605 |
| Wanhua Chem | China national standards | MT | 1165.64 | USD | 20260604 |
| Wanhua Chem | China national standards | MT | 1180.63 | USD | 20260603 |
| Wanhua Chem | China national standards | MT | 1180.58 | USD | 20260602 |
| Wanhua Chem | China national standards | MT | 1180.92 | USD | 20260601 |
| Wanhua Chem | China national standards | MT | 1180.92 | USD | 20260601 |
| Wanhua Chem | China national standards | MT | 1210.1 | USD | 20260529 |
| Wanhua Chem | China national standards | MT | USD | 20260528 | |
| Wanhua Chem | China national standards | MT | USD | 20260527 | |
| Wanhua Chem | China national standards | MT | USD | 20260526 |