| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 931.22 | USD | 20251122 |
| Shandong Jinshenrun Chem | China national standards | MT | 987.65 | USD | 20251122 |
| Shandong Qiangsen Chem | China national standards | MT | 931.22 | USD | 20251122 |
| Qingdao Shengze Chem | China national standards | MT | 874.78 | USD | 20251122 |
| Jinan Jinrihe Chem | China national standards | MT | 1001.76 | USD | 20251122 |
| Qingdao Shengze Chem | China national standards | MT | 874.78 | USD | 20251121 |
| Beijing Yanshan Petro | China national standards | MT | 888.89 | USD | 20251121 |
| Qingdao Shengze Chem | China national standards | MT | 874.78 | USD | 20251121 |
| Sinopec | China national standards | MT | 1029.98 | USD | 20251121 |
| Shandong Yuanhe Chem | China national standards | MT | 1072.31 | USD | 20251121 |