| Vendor | Spec | Unit | Price | Currency | Date |
| Wanhua Chem | China national standards | MT | 996.73 | USD | 20260105 |
| Wanhua Chem | China national standards | MT | 958.92 | USD | 20251225 |
| Wanhua Chem | China national standards | MT | 962.0 | USD | 20251211 |
| Wanhua Chem | China national standards | MT | 961.09 | USD | 20251210 |
| Wanhua Chem | China national standards | MT | 946.81 | USD | 20251208 |
| Wanhua Chem | China national standards | MT | 947.01 | USD | 20251205 |
| Wanhua Chem | China national standards | MT | 947.22 | USD | 20251204 |
| Wanhua Chem | China national standards | MT | 939.88 | USD | 20251203 |
| Wanhua Chem | China national standards | MT | 939.35 | USD | 20251202 |
| Wanhua Chem | China national standards | MT | 939.81 | USD | 20251201 |