| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 799.02 | USD | 20250814 |
| Shandong Fusheng | China national standards | MT | 785.01 | USD | 20250814 |
| Shandong Langchem | China national standards | MT | 883.13 | USD | 20250814 |
| Shandong Jinwen Chem | China national standards | MT | 848.09 | USD | 20250814 |
| Shandong Jinwen Chem | China national standards | MT | 848.09 | USD | 20250814 |
| Shandong Laya Chem | China national standards | MT | 742.95 | USD | 20250814 |
| Zibo Lishuo Chem | China national standards | MT | 812.89 | USD | 20250813 |
| Zibo Lishuo Chem | China national standards | MT | 812.89 | USD | 20250813 |
| Zibo Lishuo Chem | China national standards | MT | 812.89 | USD | 20250813 |
| Zibo Lishuo Chem | China national standards | MT | 812.89 | USD | 20250813 |