| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 851.36 | USD | 20250828 |
| Shandong Langchem | China national standards | MT | 865.43 | USD | 20250828 |
| Shandong Jinwen Chem | China national standards | MT | 788.03 | USD | 20250828 |
| Shandong Yeyang Chem | China national standards | MT | 788.03 | USD | 20250828 |
| Shandong Yeyang Chem | China national standards | MT | 773.96 | USD | 20250828 |
| Shandong Yeyang Chem | China national standards | MT | 759.89 | USD | 20250828 |
| Qingdao Shengze Chem | China national standards | MT | 689.53 | USD | 20250828 |
| Shandong Xingpeng Chem | China national standards | MT | 745.82 | USD | 20250828 |
| Anhui Ruibai | China national standards | MT | 801.6 | USD | 20250827 |
| Anhui Ruibai | China national standards | MT | 689.09 | USD | 20250827 |