| Vendor | Spec | Unit | Price | Currency | Date |
| Wanhua Chem | China national standards | MT | 1342.78 | USD | 20251205 |
| Wanhua Chem | China national standards | MT | 1342.68 | USD | 20251203 |
| Wanhua Chem | China national standards | MT | 989.34 | USD | 20251203 |
| Wanhua Chem | China national standards | MT | 1341.92 | USD | 20251202 |
| Wanhua Chem | China national standards | MT | 988.78 | USD | 20251202 |
| Wanhua Chem | China national standards | MT | 1342.59 | USD | 20251201 |
| Wanhua Chem | China national standards | MT | 989.27 | USD | 20251201 |
| Wanhua Chem | China national standards | MT | 1342.02 | USD | 20251129 |
| Wanhua Chem | China national standards | MT | 988.85 | USD | 20251128 |
| Wanhua Chem | China national standards | MT | 1342.02 | USD | 20251128 |