| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 1512.07 | USD | 20251208 |
| Shandong Langchem | China national standards | MT | 1172.91 | USD | 20251208 |
| Shandong Junfeng | China national standards | MT | 918.55 | USD | 20251208 |
| JS Yangnong Chem | China national standards | MT | 1695.78 | USD | 20251208 |
| Shandong Mingyu | China national standards | MT | 1695.78 | USD | 20251208 |
| Shandong Shuojia Chem | China national standards | MT | 1568.59 | USD | 20251208 |
| Shandong Langchem | China national standards | MT | 1175.74 | USD | 20251208 |
| Shandong Yaoming Chem | China national standards | MT | 1081.06 | USD | 20251208 |
| Shandong Langchem | China national standards | MT | 1175.74 | USD | 20251208 |
| Shandong Shuojia Chem | China national standards | MT | 1568.59 | USD | 20251208 |