| Vendor | Spec | Unit | Price | Currency | Date |
| Wanhua Yantai | China national standards | MT | 894.43 | USD | 20251015 |
| Shandong Kaitai Petro | China national standards | MT | 887.39 | USD | 20251015 |
| Shandong Kaitai Petro | China national standards | MT | 915.56 | USD | 20251015 |
| Shandong Yihe Chem | China national standards | MT | 788.79 | USD | 20251015 |
| Shandong Mingyu | China national standards | MT | 887.39 | USD | 20251015 |
| Shandong Mingyu | China national standards | MT | 915.56 | USD | 20251015 |
| Jinan Aochen Chem | China national standards | MT | 1197.27 | USD | 20251015 |
| Jinan Aochen Chem | China national standards | MT | 957.81 | USD | 20251015 |
| Jinan Aochen Chem | China national standards | MT | 1239.52 | USD | 20251015 |
| Jinan Aochen Chem | China national standards | MT | 915.56 | USD | 20251015 |