| Vendor | Spec | Unit | Price | Currency | Date |
| 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 |
| Wanhua Chem | China national standards | MT | 939.41 | USD | 20251128 |
| Wanhua Chem | China national standards | MT | 939.54 | USD | 20251127 |
| Wanhua Chem | China national standards | MT | 937.87 | USD | 20251120 |
| Wanhua Chem | China national standards | MT | 924.2 | USD | 20251119 |
| Wanhua Chem | China national standards | MT | 924.41 | USD | 20251118 |