| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai SKY Chem | China national standards | MT | 306.49 | USD | 20250919 |
| Shanghai SKY Chem | China national standards | MT | 323.36 | USD | 20250919 |
| Shanghai SKY Chem | China national standards | MT | 323.56 | USD | 20250918 |
| Shanghai SKY Chem | China national standards | MT | 306.68 | USD | 20250918 |