| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 980.61 | USD | 20250820 |
| Aite Zhejiang | China national standards | MT | 1120.7 | USD | 20250820 |
| Shandong Jinwen Chem | China national standards | MT | 1204.75 | USD | 20250820 |
| Shandong Langchem | China national standards | MT | 1204.75 | USD | 20250820 |
| Shandong Langchem | China national standards | MT | 1204.75 | USD | 20250820 |
| Shandong Langchem | China national standards | MT | 1169.73 | USD | 20250820 |
| Shandong Langchem | China national standards | MT | 1190.74 | USD | 20250820 |
| Shandong Langchem | China national standards | MT | 1165.53 | USD | 20250820 |
| Qingdao Shengze Chem | China national standards | MT | 1008.98 | USD | 20250819 |
| Shandong Xingpeng Chem | China national standards | MT | 1037.01 | USD | 20250819 |