| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Chem | China national standards | MT | 854.69 | USD | 20250816 |
| Shandong Xingpeng Chem | China national standards | MT | 854.69 | USD | 20250815 |
| Sinopec | China national standards | MT | 1085.88 | USD | 20250815 |
| Shandong Langchem | China national standards | MT | 1057.85 | USD | 20250815 |
| Shandong Langchem | China national standards | MT | 966.78 | USD | 20250815 |
| Sinopec | China national standards | MT | 1092.88 | USD | 20250815 |
| Sinopec | China national standards | MT | 1092.88 | USD | 20250815 |
| Shandong Xingpeng Chem | China national standards | MT | 855.1 | USD | 20250814 |
| Sinopec | China national standards | MT | 1093.4 | USD | 20250814 |
| Sinopec | China national standards | MT | 1093.4 | USD | 20250814 |