| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun | China national standards | MT | 303.22 | USD | 20251120 |
| Shandong Langchem | China national standards | MT | 331.43 | USD | 20251120 |
| Jinan Jinhao Chem | China national standards | MT | 394.89 | USD | 20251120 |
| Qingdao Ruishuang Chem | China national standards | MT | 423.1 | USD | 20251120 |
| Liaocheng Xinli | China national standards | MT | 275.02 | USD | 20251120 |
| Luxi Chem | China national standards | MT | 324.38 | USD | 20251120 |
| Shandong Langchem | China national standards | MT | 352.58 | USD | 20251120 |
| Nanjing Runsheng Petro | China national standards | MT | 296.17 | USD | 20251120 |
| Shandong Langchem | China national standards | MT | 380.79 | USD | 20251120 |
| Shandong Hongyang Chem | China national standards | MT | 383.61 | USD | 20251120 |