| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1246.05 | USD | 20251030 |
| Shandong Mingyu | China national standards | MT | 1128.92 | USD | 20251030 |
| Shandong Yeyang Chem | China national standards | MT | 1270.04 | USD | 20251030 |
| Shandong Aite Chem | China national standards | MT | 1157.15 | USD | 20251030 |
| Shandong Yeyang Chem | China national standards | MT | 1270.41 | USD | 20251029 |
| Shandong Junfeng | China national standards | MT | 1129.26 | USD | 20251029 |
| Shandong Mingyu | China national standards | MT | 1129.26 | USD | 20251029 |
| Shandong Langchem | China national standards | MT | 1246.42 | USD | 20251029 |
| Shandong Junfeng | China national standards | MT | 1129.05 | USD | 20251028 |
| Shandong Yeyang Chem | China national standards | MT | 1270.18 | USD | 20251028 |