| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1246.19 | USD | 20251028 |
| Shandong Yeyang Chem | China national standards | MT | 1270.18 | USD | 20251028 |
| Shandong Junfeng | China national standards | MT | 1129.05 | USD | 20251028 |
| Shandong Junfeng | China national standards | MT | 1129.05 | USD | 20251028 |
| Shandong Yeyang Chem | China national standards | MT | 1269.73 | USD | 20251027 |
| Shandong Junfeng | China national standards | MT | 1128.65 | USD | 20251027 |
| Shandong Mingyu | China national standards | MT | 1128.65 | USD | 20251027 |
| Shandong Langchem | China national standards | MT | 1245.75 | USD | 20251027 |
| Shandong Yeyang Chem | China national standards | MT | 1268.89 | USD | 20251025 |
| Shandong Yeyang Chem | China national standards | MT | 1268.89 | USD | 20251024 |