| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1170.79 | USD | 20250828 |
| Shandong Langchem | China national standards | MT | 1196.12 | USD | 20250828 |
| Shandong Langchem | China national standards | MT | 1175.01 | USD | 20250828 |
| Shandong Jinwen Chem | China national standards | MT | 1210.19 | USD | 20250828 |
| Qingdao Shengze Chem | China national standards | MT | 1012.54 | USD | 20250827 |
| Shandong Xingpeng Chem | China national standards | MT | 1082.86 | USD | 20250827 |
| Shandong Xima | China national standards | MT | 956.29 | USD | 20250827 |
| Shandong Qiangsen Chem | China national standards | MT | 984.42 | USD | 20250827 |
| Shandong Langchem | China national standards | MT | 1174.27 | USD | 20250827 |
| Shandong Langchem | China national standards | MT | 1195.36 | USD | 20250827 |