| Vendor | Spec | Unit | Price | Currency | Date |
| Wanhua Yantai | China national standards | MT | 895.01 | USD | 20251017 |
| Wanhua Yantai | China national standards | MT | 845.68 | USD | 20251017 |
| Wanhua Yantai | China national standards | MT | 930.25 | USD | 20251017 |
| Shandong Kaitai Petro | China national standards | MT | 916.15 | USD | 20251017 |
| Shandong Kaitai Petro | China national standards | MT | 887.96 | USD | 20251017 |
| Shandong Yihe Chem | China national standards | MT | 789.3 | USD | 20251017 |
| Shandong Mingyu | China national standards | MT | 887.96 | USD | 20251017 |
| Shandong Mingyu | China national standards | MT | 916.15 | USD | 20251017 |
| Jinan Aochen Chem | China national standards | MT | 1198.04 | USD | 20251017 |
| Jinan Aochen Chem | China national standards | MT | 958.43 | USD | 20251017 |