| Vendor | Spec | Unit | Price | Currency | Date |
| Suzhou ChemMat | China national standards | MT | 764.84 | USD | 20251015 |
| Suzhou ChemMat | China national standards | MT | 771.6 | USD | 20251014 |
| Suzhou ChemMat | China national standards | MT | 784.43 | USD | 20251013 |
| Suzhou ChemMat | China national standards | MT | 783.52 | USD | 20250929 |
| Suzhou ChemMat | China national standards | MT | 780.02 | USD | 20250928 |
| Suzhou ChemMat | China national standards | MT | 785.91 | USD | 20250919 |