| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1257.88 | USD | 20251203 |
| Shandong Zhiheng | China national standards | MT | 1257.88 | USD | 20251203 |
| Jinan Angxin Chem | China national standards | MT | 961.08 | USD | 20251203 |
| Jiangsu Youlixin Chem | China national standards | MT | 1017.61 | USD | 20251203 |
| Shandong Jinwen Chem | China national standards | MT | 1045.88 | USD | 20251203 |
| Shandong Langchem | China national standards | MT | 1102.41 | USD | 20251203 |
| Jinan Angxin Chem | China national standards | MT | 961.08 | USD | 20251203 |
| Shandong Hongyang Chem | China national standards | MT | 1130.68 | USD | 20251203 |
| Nanjing Runsheng Petro | China national standards | MT | 989.34 | USD | 20251203 |
| Shandong Langchem | China national standards | MT | 1081.21 | USD | 20251203 |