| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Shandong | China national standards | MT | 942.48 | USD | 20250929 |
| Shandong Xingpeng Chem | China national standards | MT | 945.29 | USD | 20250929 |
| Sinopec | China national standards | MT | 1012.81 | USD | 20250929 |
| Lihuayi Shandong | China national standards | MT | 945.29 | USD | 20250929 |
| Shandong Laya Chem | China national standards | MT | 970.61 | USD | 20250929 |
| Sinopec | China national standards | MT | 1223.82 | USD | 20250929 |
| Shandong Langchem | China national standards | MT | 1294.15 | USD | 20250929 |
| Shandong Langchem | China national standards | MT | 1329.32 | USD | 20250929 |
| Shandong Yuhuang Chem | China national standards | MT | 1287.12 | USD | 20250929 |
| Shandong Jinwen Chem | China national standards | MT | 1195.68 | USD | 20250929 |