| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1077.06 | USD | 20250916 |
| Shandong Jinwen Chem | China national standards | MT | 1041.86 | USD | 20250916 |
| Aite Zhejiang | China national standards | MT | 1070.02 | USD | 20250916 |
| Aite Zhejiang | China national standards | MT | 1027.78 | USD | 20250916 |
| Qingdao Shengze Chem | China national standards | MT | 971.07 | USD | 20250915 |
| Qingdao Shengze Chem | China national standards | MT | 971.07 | USD | 20250915 |
| Shandong Huize Chem | China national standards | MT | 1041.43 | USD | 20250915 |
| Shandong Huize Chem | China national standards | MT | 1041.43 | USD | 20250915 |
| Qingdao Shengze Chem | China national standards | MT | 971.07 | USD | 20250915 |
| Qingdao Shengze Chem | China national standards | MT | 971.07 | USD | 20250915 |