| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chem | China national standards | MT | 1266.68 | USD | 20250904 |
| Shandong Yeyang Chem | China national standards | MT | 1265.68 | USD | 20250903 |
| Shandong Junfeng | China national standards | MT | 1125.05 | USD | 20250903 |
| Shandong Langchem | China national standards | MT | 1241.77 | USD | 20250903 |
| Shandong Langchem | China national standards | MT | 1242.1 | USD | 20250902 |
| Shandong Yeyang Chem | China national standards | MT | 1266.02 | USD | 20250902 |
| Shandong Junfeng | China national standards | MT | 1125.35 | USD | 20250902 |
| Shandong Yeyang Chem | China national standards | MT | 1266.32 | USD | 20250901 |
| Shandong Junfeng | China national standards | MT | 1125.62 | USD | 20250901 |
| Shandong Langchem | China national standards | MT | 1242.4 | USD | 20250901 |