| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chem | China national standards | MT | 4938.48 | USD | 20251119 |
| Weifang Longmao Chem | Industrial Grade | MT | 4516.2 | USD | 20251118 |
| Shandong Hongyang Chem | China national standards | MT | 4939.6 | USD | 20251118 |
| Shouguang ZixuChem | Industrial Grade | MT | 4516.2 | USD | 20251118 |
| Shandong Zhiheng | China national standards | MT | 4939.6 | USD | 20251118 |
| Weifang Longmao Chem | Industrial Grade | MT | 4377.54 | USD | 20251117 |
| Shouguang ZixuChem | Industrial Grade | MT | 4377.54 | USD | 20251117 |
| Shandong Zhiheng | China national standards | MT | 4942.39 | USD | 20251117 |
| Shandong Hongyang Chem | China national standards | MT | 4942.39 | USD | 20251117 |
| Weifang Yahua Chem | Industrial Grade | MT | 4447.58 | USD | 20251114 |