| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhiheng | China national standards | MT | 1130.69 | USD | 20251210 |
| Hunan Qilu Tech | China national standards | MT | 1257.9 | USD | 20251210 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1045.6 | USD | 20251209 |
| Shandong Yihe Chem | China national standards | MT | 989.08 | USD | 20251209 |
| Shandong Jinling Chem | China national standards | MT | 1031.47 | USD | 20251209 |
| Shandong Langchem | China national standards | MT | 1215.15 | USD | 20251209 |
| Shandong Aite Chem | China national standards | MT | 1271.67 | USD | 20251209 |
| Shandong Langchem | China national standards | MT | 1179.83 | USD | 20251209 |
| Shandong Jinwen Chem | China national standards | MT | 1215.15 | USD | 20251209 |
| Shandong Junfeng | China national standards | MT | 1201.02 | USD | 20251209 |