| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Kaitai Petro | China national standards | MT | 917.87 | USD | 20251117 |
| Shandong Yaoming Chem | China national standards | MT | 833.15 | USD | 20251117 |
| Shandong Zhiheng | China national standards | MT | 804.9 | USD | 20251117 |
| Shandong Yihe Chem | China national standards | MT | 790.78 | USD | 20251117 |
| Shandong Kaitai Petro | China national standards | MT | 889.63 | USD | 20251117 |
| Shandong Qiangsen Chem | China national standards | MT | 819.02 | USD | 20251117 |
| Jinan Aochen Chem | China national standards | MT | 917.87 | USD | 20251117 |
| Wanhua Yantai | China national standards | MT | 790.78 | USD | 20251117 |
| Jinan Aochen Chem | China national standards | MT | 960.23 | USD | 20251117 |
| Shandong Qiangsen Chem | China national standards | MT | 819.02 | USD | 20251117 |