| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Weiyuan Chem | China national standards | MT | 1156.97 | USD | 20251121 |
| Beijing Yanshan Petro | China national standards | MT | 987.65 | USD | 20251121 |
| Shandong Langchem | China national standards | MT | 1114.64 | USD | 20251121 |
| Shandong Jinshenrun Chem | China national standards | MT | 987.65 | USD | 20251121 |
| Shandong Jinshenrun Chem | China national standards | MT | 987.65 | USD | 20251121 |
| Beijing Yanshan Petro | China national standards | MT | 1058.2 | USD | 20251121 |
| Shandong Junfeng | China national standards | MT | 917.11 | USD | 20251121 |
| Beijing Yanshan Petro | China national standards | MT | 907.23 | USD | 20251121 |
| Shandong Aite Chem | China national standards | MT | 1100.53 | USD | 20251121 |
| Shandong Langchem | China national standards | MT | 1107.58 | USD | 20251121 |