| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 971.07 | USD | 20250915 |
| Shandong Huize Chem | China national standards | MT | 1048.47 | USD | 20250915 |
| Shandong Xima | China national standards | MT | 914.77 | USD | 20250915 |
| Shandong Langchem | China national standards | MT | 1170.91 | USD | 20250915 |
| Shandong Langchem | China national standards | MT | 1246.9 | USD | 20250915 |
| Shandong Jinwen Chem | China national standards | MT | 971.07 | USD | 20250915 |
| Shandong Jinwen Chem | China national standards | MT | 971.07 | USD | 20250915 |
| Shandong Jinwen Chem | China national standards | MT | 1097.73 | USD | 20250915 |
| Nanjing Baitu Chem | China national standards | MT | 1041.43 | USD | 20250915 |
| Qingdao Shengze Chem | China national standards | MT | 971.57 | USD | 20250914 |