| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng | China national standards | MT | 916.72 | USD | 20251120 |
| Jinan Jinrihe Chem | China national standards | MT | 1001.34 | USD | 20251120 |
| Shandong Langchem | China national standards | MT | 1107.12 | USD | 20251120 |
| Beijing Yanshan Petro | China national standards | MT | 987.24 | USD | 20251120 |
| Shandong Zhiheng | China national standards | MT | 906.85 | USD | 20251120 |
| Shandong Langchem | China national standards | MT | 1114.17 | USD | 20251120 |
| Beijing Yanshan Petro | China national standards | MT | 888.51 | USD | 20251120 |
| Shandong Aite Chem | China national standards | MT | 1100.06 | USD | 20251120 |
| Beijing Yanshan Petro | China national standards | MT | 1198.79 | USD | 20251120 |
| Shandong Jinshenrun Chem | China national standards | MT | 987.24 | USD | 20251120 |