| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 841.67 | USD | 20250821 |
| Shandong Mengkanda Chem | China national standards | MT | 841.67 | USD | 20250821 |
| Qingdao Shengze Chem | China national standards | MT | 827.64 | USD | 20250821 |
| Sinopec | China national standards | MT | 1087.15 | USD | 20250821 |
| Shandong Langchem | China national standards | MT | 1059.1 | USD | 20250821 |
| Shandong Langchem | China national standards | MT | 967.92 | USD | 20250821 |
| Aite Zhejiang | China national standards | MT | 1010.0 | USD | 20250821 |
| Aite Zhejiang | China national standards | MT | 1010.0 | USD | 20250821 |
| Huizhou Jincheng Petro | China national standards | MT | 1094.17 | USD | 20250821 |
| Huizhou Jincheng Petro | China national standards | MT | 1094.17 | USD | 20250821 |