| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Lianchem | China national standards | MT | 1170.05 | USD | 20250827 |
| Shandong Langchem | China national standards | MT | 1170.05 | USD | 20250827 |
| Shandong Langchem | China national standards | MT | 1167.24 | USD | 20250827 |
| Shandong Yeyang Chem | China national standards | MT | 1146.14 | USD | 20250827 |
| Shandong Mengkanda Chem | China national standards | MT | 1075.83 | USD | 20250827 |
| Shandong Mengkanda Chem | China national standards | MT | 1075.83 | USD | 20250827 |
| Shandong Junfeng | China national standards | MT | 913.08 | USD | 20250826 |
| Shandong Junfeng | China national standards | MT | 920.1 | USD | 20250826 |
| Qingdao Shengze Chem | China national standards | MT | 1404.73 | USD | 20250826 |
| Qingdao Shengze Chem | China national standards | MT | 1404.73 | USD | 20250826 |