| Vendor | Spec | Unit | Price | Currency | Date |
| Suzhou ChemMat | China national standards | MT | 3802.44 | USD | 20251013 |
| Suzhou ChemMat | China national standards | MT | 3774.28 | USD | 20251013 |
| Suzhou ChemMat | China national standards | MT | 3769.92 | USD | 20250929 |
| Suzhou ChemMat | China national standards | MT | 3798.06 | USD | 20250929 |
| Suzhou ChemMat | China national standards | MT | 3794.69 | USD | 20250928 |
| Suzhou ChemMat | China national standards | MT | 3799.77 | USD | 20250924 |
| Suzhou ChemMat | China national standards | MT | 3799.77 | USD | 20250923 |
| Suzhou ChemMat | China national standards | MT | 3797.15 | USD | 20250922 |
| Suzhou ChemMat | China national standards | MT | 3795.97 | USD | 20250919 |
| Suzhou ChemMat | China national standards | MT | 3798.27 | USD | 20250918 |