| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Aochen Chem | China national standards | MT | 843.55 | USD | 20250919 |
| Jinan Aochen Chem | China national standards | MT | 773.72 | USD | 20250918 |
| Jinan Aochen Chem | China national standards | MT | 773.72 | USD | 20250918 |
| Jinan Aochen Chem | China national standards | MT | 759.65 | USD | 20250918 |