| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 1512.07 | USD | 20251208 |
| Dongying Hebang Chem | China national standards | MT | 1356.62 | USD | 20251208 |
| Shandong Langchem | China national standards | MT | 1175.74 | USD | 20251208 |
| JS Yangnong Chem | China national standards | MT | 854.95 | USD | 20251208 |
| Shandong Yaoming Chem | China national standards | MT | 1081.06 | USD | 20251208 |
| Hubei 789 Chem | China national standards | MT | 1130.52 | USD | 20251208 |
| Jinan Qi Mat | China national standards | MT | 1526.2 | USD | 20251208 |
| Jinan Aochen Chem | China national standards | MT | 1356.62 | USD | 20251208 |
| Shandong Mingyu | China national standards | MT | 1695.78 | USD | 20251208 |
| Qingdao Shengze Chem | China national standards | MT | 1512.07 | USD | 20251208 |