| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Feiyuan Chem | China national standards | MT | 1554.57 | USD | 20251201 |
| Shandong Junfeng | China national standards | MT | 925.68 | USD | 20251201 |
| Dongying Lianchem | China national standards | MT | 1201.26 | USD | 20251201 |
| Jinan Aochen Chem | China national standards | MT | 1314.32 | USD | 20251201 |
| Shandong Yuxuan Chem | China national standards | MT | 1823.09 | USD | 20251201 |
| Shandong Hongyang Chem | China national standards | MT | 1130.6 | USD | 20251201 |
| Shandong Hongyang Chem | China national standards | MT | 1130.6 | USD | 20251201 |
| Jiangsu Haixing Chem | China national standards | MT | 1271.92 | USD | 20251201 |
| Dongying Hebang Chem | China national standards | MT | 1356.72 | USD | 20251201 |
| Dongying Lianchem | China national standards | MT | 1201.26 | USD | 20251201 |