| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Chambroad | China national standards | MT | 729.44 | USD | 20251216 |
| Sinopec | China national standards | MT | 849.83 | USD | 20251216 |
| Shandong Mingyu | China national standards | MT | 878.16 | USD | 20251216 |
| Sinopec | China national standards | MT | 934.82 | USD | 20251216 |
| Shandong Jinwen Chem | China national standards | MT | 934.82 | USD | 20251216 |
| Shandong Chambroad | China national standards | MT | 1076.46 | USD | 20251216 |
| Shandong Yeyang Chem | China national standards | MT | 1104.78 | USD | 20251216 |
| Sinopec | China national standards | MT | 849.83 | USD | 20251216 |
| Sinopec | China national standards | MT | 1005.64 | USD | 20251216 |
| Shandong Langchem | China national standards | MT | 1069.37 | USD | 20251216 |