| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chem | China national standards | MT | 4933.12 | USD | 20251017 |
| Weifang Yahua Chem | Industrial Grade | MT | 4157.92 | USD | 20251017 |
| Shandong Zhiheng | China national standards | MT | 4933.12 | USD | 20251017 |
| Shandong Hongyang Chem | China national standards | MT | 4931.8 | USD | 20251016 |
| Shandong Zhiheng | China national standards | MT | 4931.8 | USD | 20251016 |
| Shouguang ZixuChem | Industrial Grade | MT | 3945.44 | USD | 20251016 |
| Weifang Longmao Chem | Industrial Grade | MT | 3945.44 | USD | 20251016 |
| Shandong Hongyang Chem | China national standards | MT | 4929.92 | USD | 20251015 |
| Shandong Zhiheng | China national standards | MT | 4929.92 | USD | 20251015 |
| Weifang Longmao Chem | Industrial Grade | MT | 3942.5 | USD | 20251014 |