| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 233.09 | USD | 20251130 |
| Shandong Jinshenrun Chem | China national standards | MT | 324.91 | USD | 20251130 |
| Qingdao Shengze Chem | China national standards | MT | 233.09 | USD | 20251129 |
| Shandong LuoHeng Chem | China national standards | MT | 337.62 | USD | 20251129 |
| Shandong Jinling Chem | China national standards | MT | 237.33 | USD | 20251129 |
| Shandong Langchem | China national standards | MT | 353.16 | USD | 20251129 |
| Luxi Chem | China national standards | MT | 233.09 | USD | 20251129 |
| Shandong Jinling Chem | China national standards | MT | 268.4 | USD | 20251129 |
| Shandong Langchem | China national standards | MT | 353.16 | USD | 20251129 |
| Shandong Langchem | China national standards | MT | 360.23 | USD | 20251129 |