| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1242.1 | USD | 20250929 |
| Shandong Langchem | China national standards | MT | 1241.01 | USD | 20250926 |
| Shandong Mingyu | China national standards | MT | 1124.35 | USD | 20250926 |
| Shandong Junfeng | China national standards | MT | 1124.35 | USD | 20250926 |
| Shandong Aite Chem | China national standards | MT | 1152.46 | USD | 20250926 |
| Shandong Yeyang Chem | China national standards | MT | 1264.9 | USD | 20250926 |
| Shandong Langchem | China national standards | MT | 1242.66 | USD | 20250925 |
| Shandong Aite Chem | China national standards | MT | 1154.0 | USD | 20250925 |
| Shandong Junfeng | China national standards | MT | 1125.86 | USD | 20250925 |
| Shandong Junfeng | China national standards | MT | 1125.86 | USD | 20250925 |