| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Wonfull Petro | China national standards | MT | 815.92 | USD | 20250918 |
| Shandong Laya Chem | China national standards | MT | 745.59 | USD | 20250918 |
| Shandong Laya Chem | China national standards | MT | 745.59 | USD | 20250918 |
| Shandong Zhongke Taihua | China national standards | MT | 942.53 | USD | 20250918 |
| Shandong Zhongke Taihua | China national standards | MT | 942.53 | USD | 20250918 |
| Shandong Zhongke Taihua | China national standards | MT | 942.53 | USD | 20250918 |
| Shandong Fusheng | China national standards | MT | 787.79 | USD | 20250918 |
| Shandong Fusheng | China national standards | MT | 787.79 | USD | 20250918 |
| Shandong Feiyang Chem | China national standards | MT | 984.74 | USD | 20250918 |
| Zibo Lishuo Chem | China national standards | MT | 816.59 | USD | 20250916 |