| Vendor | Spec | Unit | Price | Currency | Date |
| Weifang Yixin Chem | China national standards | MT | 1815.5 | USD | 20250930 |
| Shandong Langchem | China national standards | MT | 1168.11 | USD | 20250930 |
| Shandong Langchem | China national standards | MT | 1170.92 | USD | 20250930 |
| Shandong Langchem | China national standards | MT | 1170.92 | USD | 20250930 |
| Dongying Lianchem | China national standards | MT | 1170.92 | USD | 20250930 |
| Shandong Langchem | China national standards | MT | 1182.18 | USD | 20250930 |
| Shandong Langchem | China national standards | MT | 1170.92 | USD | 20250930 |
| Shandong Junfeng | China national standards | MT | 914.78 | USD | 20250930 |
| Shandong Junfeng | China national standards | MT | 921.82 | USD | 20250930 |
| JS Yangnong Chem | China national standards | MT | 851.45 | USD | 20250930 |