| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chem | China national standards | MT | 851.25 | USD | 20250901 |
| Shandong Langchem | China national standards | MT | 886.43 | USD | 20250901 |
| Shandong Laya Chem | China national standards | MT | 745.72 | USD | 20250901 |
| Shandong Fusheng | China national standards | MT | 787.93 | USD | 20250901 |
| Zibo Lishuo Chem | China national standards | MT | 816.56 | USD | 20250830 |
| Zibo Lishuo Chem | China national standards | MT | 816.56 | USD | 20250830 |
| Zibo Lishuo Chem | China national standards | MT | 816.56 | USD | 20250830 |
| Zibo Lishuo Chem | China national standards | MT | 816.56 | USD | 20250830 |
| Zibo Lishuo Chem | China national standards | MT | 816.56 | USD | 20250830 |
| Shandong Xima | China national standards | MT | 703.93 | USD | 20250830 |