| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Lianchem | China national standards | MT | 1201.02 | USD | 20251209 |
| Qingdao Shengze Chem | China national standards | MT | 1511.88 | USD | 20251209 |
| Shandong Junfeng | China national standards | MT | 925.49 | USD | 20251209 |
| Qingdao Shengze Chem | China national standards | MT | 1511.88 | USD | 20251209 |
| Jinan Aochen Chem | China national standards | MT | 1356.45 | USD | 20251209 |
| Qingdao Shengze Chem | China national standards | MT | 1511.88 | USD | 20251209 |
| Dongying Hebang Chem | China national standards | MT | 1356.45 | USD | 20251209 |
| Jinan Aochen Chem | China national standards | MT | 1356.45 | USD | 20251209 |
| Qingdao Shengze Chem | China national standards | MT | 1511.88 | USD | 20251209 |
| Qingdao Shengze Chem | China national standards | MT | 1511.88 | USD | 20251209 |