| Vendor | Spec | Unit | Price | Currency | Date |
| Nantong Zhonghe Chem | China national standards | MT | 706.67 | USD | 20251203 |
| Shandong Langchem | China national standards | MT | 855.08 | USD | 20251203 |
| Shandong Xingpeng Chem | China national standards | MT | 749.07 | USD | 20251203 |
| Shandong Langchem | China national standards | MT | 869.21 | USD | 20251203 |
| Nanjing Runsheng Petro | China national standards | MT | 734.94 | USD | 20251203 |
| Nanjing Runsheng Petro | China national standards | MT | 720.81 | USD | 20251203 |
| Shandong Zhiheng | China national standards | MT | 720.81 | USD | 20251203 |
| Nantong Zhonghe Chem | China national standards | MT | 692.54 | USD | 20251203 |
| Qingdao Shengze Chem | China national standards | MT | 720.81 | USD | 20251203 |
| Shandong Yeyang Chem | China national standards | MT | 777.34 | USD | 20251203 |