| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng | China national standards | MT | 1125.14 | USD | 20251009 |
| Shandong Yeyang Chem | China national standards | MT | 1266.62 | USD | 20250930 |
| Shandong Yeyang Chem | China national standards | MT | 1266.62 | USD | 20250930 |
| Shandong Junfeng | China national standards | MT | 1125.89 | USD | 20250930 |
| Shandong Langchem | China national standards | MT | 1242.7 | USD | 20250930 |
| Shandong Mingyu | China national standards | MT | 1125.89 | USD | 20250930 |
| Shandong Aite Chem | China national standards | MT | 1154.04 | USD | 20250930 |
| Shandong Yeyang Chem | China national standards | MT | 1266.02 | USD | 20250929 |
| Shandong Aite Chem | China national standards | MT | 1153.48 | USD | 20250929 |
| Shandong Langchem | China national standards | MT | 1242.1 | USD | 20250929 |