| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 689.6 | USD | 20250915 |
| Qingdao Shengze Chem | China national standards | MT | 689.6 | USD | 20250915 |
| Shandong Langchem | China national standards | MT | 865.51 | USD | 20250915 |
| Shandong Langchem | China national standards | MT | 851.44 | USD | 20250915 |
| Shandong Jinwen Chem | China national standards | MT | 788.11 | USD | 20250915 |
| Shandong Yeyang Chem | China national standards | MT | 788.11 | USD | 20250915 |
| Shandong Yeyang Chem | China national standards | MT | 774.04 | USD | 20250915 |
| Shandong Yeyang Chem | China national standards | MT | 759.96 | USD | 20250915 |
| Nanjing Baitu Chem | China national standards | MT | 745.89 | USD | 20250915 |
| Nanjing Baitu Chem | China national standards | MT | 745.89 | USD | 20250915 |