| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chem | China national standards | MT | 1146.87 | USD | 20250828 |
| Shandong Yeyang Chem | China national standards | MT | 1139.83 | USD | 20250828 |
| Qingdao Shengze Chem | China national standards | MT | 1406.31 | USD | 20250827 |
| Qingdao Shengze Chem | China national standards | MT | 1406.31 | USD | 20250827 |
| Shandong Xingpeng Chem | China national standards | MT | 1448.5 | USD | 20250827 |
| Shandong Xima | China national standards | MT | 843.79 | USD | 20250827 |
| Shandong Qiangsen Chem | China national standards | MT | 1054.73 | USD | 20250827 |
| Shandong Langchem | China national standards | MT | 1170.05 | USD | 20250827 |
| Shandong Langchem | China national standards | MT | 1170.05 | USD | 20250827 |
| Shandong Langchem | China national standards | MT | 1181.3 | USD | 20250827 |