| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Shuojia Chem | China national standards | MT | 931.26 | USD | 20251119 |
| Qingdao Shengze Chem | China national standards | MT | 874.82 | USD | 20251119 |
| Qingdao Shengze Chem | China national standards | MT | 874.82 | USD | 20251119 |
| Qingdao Shengze Chem | China national standards | MT | 874.82 | USD | 20251119 |
| Beijing Yanshan Petro | China national standards | MT | 917.15 | USD | 20251119 |
| Shandong Jinshenrun Chem | China national standards | MT | 987.7 | USD | 20251119 |
| Shandong Jinshenrun Chem | China national standards | MT | 987.7 | USD | 20251119 |
| Qingdao Shengze Chem | China national standards | MT | 874.82 | USD | 20251119 |
| Lihuayi Weiyuan Chem | China national standards | MT | 917.15 | USD | 20251119 |
| Beijing Yanshan Petro | China national standards | MT | 987.7 | USD | 20251119 |