| Vendor | Spec | Unit | Price | Currency | Date |
| Weifang Longmao Chem | Industrial Grade | MT | 4374.51 | USD | 20251106 |
| Shandong Zhiheng | China national standards | MT | 4938.97 | USD | 20251106 |
| Weifang Sutong Chem | China national standards | MT | 4374.51 | USD | 20251106 |
| Shouguang ZixuChem | Industrial Grade | MT | 4374.51 | USD | 20251106 |
| Weifang Yahua Chem | Industrial Grade | MT | 4372.29 | USD | 20251105 |
| Shandong Hongyang Chem | China national standards | MT | 4936.46 | USD | 20251105 |
| Shandong Zhiheng | China national standards | MT | 4936.46 | USD | 20251105 |
| Weifang Sutong Chem | China national standards | MT | 4428.71 | USD | 20251105 |
| Shouguang ZixuChem | Industrial Grade | MT | 4373.28 | USD | 20251104 |
| Weifang Longmao Chem | Industrial Grade | MT | 4373.28 | USD | 20251104 |