| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 5201.43 | USD | 20260106 |
| Unknown | China national standards | MT | 5201.43 | USD | 20260106 |
| Weifang Longmao Chem | Industrial Grade | MT | 4951.48 | USD | 20251211 |
| Weifang Sutong Chem | China national standards | MT | 4951.48 | USD | 20251211 |
| Shouguang ZixuChem | Industrial Grade | MT | 4951.48 | USD | 20251211 |
| Shandong Hongyang Chem | China national standards | MT | 4951.48 | USD | 20251211 |
| Shandong Zhiheng | China national standards | MT | 4951.48 | USD | 20251211 |
| Weifang Longmao Chem | Industrial Grade | MT | 4946.79 | USD | 20251210 |
| Shandong Hongyang Chem | China national standards | MT | 4946.79 | USD | 20251210 |
| Shouguang ZixuChem | Industrial Grade | MT | 4946.79 | USD | 20251210 |