| Vendor | Spec | Unit | Price | Currency | Date |
| Wanhua Chem | China national standards | MT | 875.69 | USD | 20260105 |
| Wanhua Chem | China national standards | MT | 875.69 | USD | 20260105 |
| Wanhua Chem | China national standards | MT | 845.67 | USD | 20251226 |
| Wanhua Chem | China national standards | MT | 845.67 | USD | 20251226 |
| Wanhua Chem | China national standards | MT | 845.27 | USD | 20251225 |
| Wanhua Chem | China national standards | MT | 845.27 | USD | 20251225 |
| Wanhua Chem | China national standards | MT | 1032.74 | USD | 20251211 |
| Wanhua Chem | China national standards | MT | 1075.18 | USD | 20251211 |
| Wanhua Chem | China national standards | MT | 1074.16 | USD | 20251210 |
| Wanhua Chem | China national standards | MT | 1031.76 | USD | 20251210 |