| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinling Chem | China national standards | MT | 1238.44 | USD | 20250925 |
| Shandong Jinling Chem | China national standards | MT | 1118.82 | USD | 20250925 |
| Shandong Hongyang Chem | China national standards | MT | 1184.96 | USD | 20250925 |
| Shandong Hongyang Chem | China national standards | MT | 1090.67 | USD | 20250925 |
| Shandong Zhiheng | China national standards | MT | 1168.08 | USD | 20250925 |
| Shandong Zhiheng | China national standards | MT | 1125.86 | USD | 20250925 |
| Shandong Zhiheng | China national standards | MT | 1125.86 | USD | 20250925 |
| Shandong Langchem | China national standards | MT | 1210.3 | USD | 20250925 |
| Shandong Langchem | China national standards | MT | 1170.89 | USD | 20250925 |
| Shandong Langchem | China national standards | MT | 1196.22 | USD | 20250925 |