| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 829.99 | USD | 20250918 |
| Sinopec | China national standards | MT | 1252.02 | USD | 20250918 |
| Shandong Langchem | China national standards | MT | 1062.11 | USD | 20250918 |
| Shandong Langchem | China national standards | MT | 970.67 | USD | 20250918 |
| Shandong Yihe Chem | China national standards | MT | 801.86 | USD | 20250918 |
| Shandong Yihe Chem | China national standards | MT | 801.86 | USD | 20250918 |
| Aite Zhejiang | China national standards | MT | 1012.87 | USD | 20250918 |
| Aite Zhejiang | China national standards | MT | 1012.87 | USD | 20250918 |
| Huizhou Jincheng Petro | China national standards | MT | 1097.28 | USD | 20250918 |
| Shandong Chambroad | China national standards | MT | 1069.14 | USD | 20250918 |