| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Wonfull Petro | China national standards | MT | 713.69 | USD | 20251201 |
| Changzhou Qidi Chem | China national standards | MT | 706.62 | USD | 20251201 |
| Baozhen Shandong Chem | China national standards | MT | 749.02 | USD | 20251201 |
| Shijiaz Bailong Chem | China national standards | MT | 777.29 | USD | 20251201 |
| Nantong Zhonghe Chem | China national standards | MT | 720.76 | USD | 20251201 |
| Zibo Qixiang Chem | China national standards | MT | 777.29 | USD | 20251201 |
| Shandong QiFa Chem | China national standards | MT | 890.35 | USD | 20251201 |
| Jinan Aochen Chem | China national standards | MT | 847.95 | USD | 20251201 |
| Zibo Qixiang Chem | China national standards | MT | 847.95 | USD | 20251201 |
| Jinan Aochen Chem | China national standards | MT | 847.95 | USD | 20251201 |