| Vendor | Spec | Unit | Price | Currency | Date |
| Zhangzhou Sanan Chem | China national standards | MT | 91.48 | USD | 20250923 |
| Zhangzhou Sanan Chem | China national standards | MT | 91.38 | USD | 20250921 |
| Zhangzhou Sanan Chem | China national standards | MT | 91.38 | USD | 20250920 |
| Zhangzhou Sanan Chem | China national standards | MT | 91.38 | USD | 20250919 |
| Zhangzhou Sanan Chem | China national standards | MT | 91.44 | USD | 20250918 |