| Vendor | Spec | Unit | Price | Currency | Date |
| Liao RunChem | China national standards | MT | 791.01 | USD | 20251126 |
| Liao RunChem | China national standards | MT | 762.44 | USD | 20251114 |
| Liao RunChem | China national standards | MT | 747.73 | USD | 20251027 |
| Liao RunChem | China national standards | MT | 747.73 | USD | 20251027 |