| Vendor | Spec | Unit | Price | Currency | Date |
| Wanhua Chem | China national standards | MT | 1340.29 | USD | 20251101 |
| Wanhua Chem | China national standards | MT | 987.58 | USD | 20251031 |
| Wanhua Chem | China national standards | MT | 1340.29 | USD | 20251031 |
| Wanhua Chem | China national standards | MT | 1340.29 | USD | 20251031 |
| Wanhua Chem | China national standards | MT | 1340.6 | USD | 20251030 |
| Wanhua Chem | China national standards | MT | 1340.99 | USD | 20251029 |
| Wanhua Chem | China national standards | MT | 988.1 | USD | 20251029 |
| Wanhua Chem | China national standards | MT | 987.92 | USD | 20251028 |
| Wanhua Chem | China national standards | MT | 1340.75 | USD | 20251028 |
| Wanhua Chem | China national standards | MT | 987.92 | USD | 20251028 |