| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chem | China national standards | MT | 971.43 | USD | 20250908 |
| Qingdao Shengze Chem | China national standards | MT | 970.96 | USD | 20250907 |
| Qingdao Shengze Chem | China national standards | MT | 970.96 | USD | 20250907 |
| Shandong Jinwen Chem | China national standards | MT | 1097.6 | USD | 20250906 |
| Qingdao Shengze Chem | China national standards | MT | 970.96 | USD | 20250906 |
| Qingdao Shengze Chem | China national standards | MT | 970.96 | USD | 20250906 |
| Shandong Xima | China national standards | MT | 914.67 | USD | 20250906 |
| Shandong Langchem | China national standards | MT | 1170.78 | USD | 20250906 |
| Qingdao Shengze Chem | China national standards | MT | 970.96 | USD | 20250905 |
| Shandong Xima | China national standards | MT | 914.67 | USD | 20250905 |