| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Aite Chem | China national standards | MT | 1111.35 | USD | 20250918 |
| CNPC | China national standards | MT | 844.06 | USD | 20250918 |
| Sinopec | China national standards | MT | 844.06 | USD | 20250918 |
| Shandong Dongming Petro | China national standards | MT | 1871.0 | USD | 20250918 |
| Shandong Changyi Petro | China national standards | MT | 851.09 | USD | 20250918 |
| Shandong Chambroad | China national standards | MT | 829.99 | USD | 20250918 |
| 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 |