| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chem | China national standards | MT | 932.81 | USD | 20251203 |
| Shandong Jinwen Chem | China national standards | MT | 932.81 | USD | 20251203 |
| Shandong Jinwen Chem | China national standards | MT | 932.81 | USD | 20251203 |
| Shandong Zhiheng | China national standards | MT | 975.21 | USD | 20251203 |
| Shandong Jinwen Chem | China national standards | MT | 932.81 | USD | 20251203 |
| Sinopec | China national standards | MT | 1095.34 | USD | 20251203 |
| Shandong Langchem | China national standards | MT | 1067.08 | USD | 20251203 |
| Sinopec | China national standards | MT | 848.01 | USD | 20251203 |
| Sinopec | China national standards | MT | 1102.41 | USD | 20251203 |
| Sinopec | China national standards | MT | 1102.41 | USD | 20251203 |