| Vendor | Spec | Unit | Price | Currency | Date |
| Shouguang ZixuChem | Industrial Grade | MT | 4946.79 | USD | 20251210 |
| Weifang Longmao Chem | Industrial Grade | MT | 4945.39 | USD | 20251209 |
| Shouguang ZixuChem | Industrial Grade | MT | 4945.39 | USD | 20251209 |
| Shandong Zhiheng | China national standards | MT | 4945.39 | USD | 20251209 |
| Shandong Hongyang Chem | China national standards | MT | 4945.39 | USD | 20251209 |
| Shandong Hongyang Chem | China national standards | MT | 4946.02 | USD | 20251208 |
| Weifang Longmao Chem | Industrial Grade | MT | 4946.02 | USD | 20251208 |
| Shouguang ZixuChem | Industrial Grade | MT | 4946.02 | USD | 20251208 |
| Shandong Zhiheng | China national standards | MT | 4946.02 | USD | 20251208 |
| Shandong Zhiheng | China national standards | MT | 4947.07 | USD | 20251205 |