| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 1539.79 | USD | 20251129 |
| Jinan Qi Mat | China national standards | MT | 1525.66 | USD | 20251129 |
| Shandong Yuxuan Chem | China national standards | MT | 1822.32 | USD | 20251129 |
| Shandong Langchem | China national standards | MT | 1175.32 | USD | 20251129 |
| Shandong Xingpeng Chem | China national standards | MT | 1624.55 | USD | 20251129 |
| Qingdao Shengze Chem | China national standards | MT | 1596.29 | USD | 20251129 |
| Jinan Qi Mat | China national standards | MT | 1525.66 | USD | 20251129 |
| Shandong Langchem | China national standards | MT | 1175.32 | USD | 20251129 |
| Shandong Yaoming Chem | China national standards | MT | 1080.68 | USD | 20251129 |
| Shandong Langchem | China national standards | MT | 1186.63 | USD | 20251129 |