| Vendor | Spec | Unit | Price | Currency | Date |
| Weifang Longmao Chem | Industrial Grade | MT | 3942.5 | USD | 20251014 |
| Weifang Yahua Chem | Industrial Grade | MT | 4083.3 | USD | 20251014 |
| Shouguang ZixuChem | Industrial Grade | MT | 3942.5 | USD | 20251014 |
| Shandong Hongyang Chem | China national standards | MT | 4928.12 | USD | 20251014 |
| Shouguang ZixuChem | Industrial Grade | MT | 3943.27 | USD | 20251013 |
| Weifang Sutong Chem | China national standards | MT | 3985.52 | USD | 20251013 |
| Shandong Hongyang Chem | China national standards | MT | 4929.09 | USD | 20251013 |
| Shandong Zhiheng | China national standards | MT | 4929.09 | USD | 20251013 |
| Weifang Longmao Chem | Industrial Grade | MT | 3943.27 | USD | 20251013 |
| Weifang Longmao Chem | China national standards | MT | 3941.0 | USD | 20251011 |