| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 905.76 | USD | 20251031 |
| Qingdao Shengze Chem | China national standards | MT | 905.76 | USD | 20251031 |
| Qingdao Shengze Chem | China national standards | MT | 905.76 | USD | 20251031 |
| Qingdao Shengze Chem | China national standards | MT | 905.76 | USD | 20251031 |
| Shandong Junfeng | China national standards | MT | 1058.13 | USD | 20251031 |
| Shandong Junfeng | China national standards | MT | 987.58 | USD | 20251031 |
| Shandong Junfeng | China national standards | MT | 917.04 | USD | 20251031 |
| Shiyou Yangzhou Chem | China national standards | MT | 907.17 | USD | 20251031 |
| Lihuayi Weiyuan Chem | China national standards | MT | 907.17 | USD | 20251031 |
| Beijing Yanshan Petro | China national standards | MT | 907.17 | USD | 20251031 |