| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Aochen Chem | China national standards | MT | 918.43 | USD | 20251209 |
| Wanhua Yantai | China national standards | MT | 897.23 | USD | 20251209 |
| Aite Zhejiang | China national standards | MT | 883.11 | USD | 20251209 |
| Shandong Langchem | China national standards | MT | 989.08 | USD | 20251209 |
| Shandong Aite Chem | China national standards | MT | 946.69 | USD | 20251209 |
| Shandong Yihe Chem | China national standards | MT | 791.26 | USD | 20251209 |
| Shandong Kaitai Petro | China national standards | MT | 890.17 | USD | 20251209 |
| Shandong Kaitai Petro | China national standards | MT | 918.43 | USD | 20251209 |
| Zibo Lishuo Chem | China national standards | MT | 847.78 | USD | 20251209 |
| Aite Zhejiang | China national standards | MT | 883.11 | USD | 20251209 |