| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhiheng | China national standards | MT | 4944.27 | USD | 20251128 |
| Weifang Longmao Chem | Industrial Grade | MT | 4661.74 | USD | 20251128 |
| Shandong Hongyang Chem | China national standards | MT | 4944.27 | USD | 20251128 |
| Shouguang ZixuChem | Industrial Grade | MT | 4661.74 | USD | 20251128 |
| Weifang Longmao Chem | Industrial Grade | MT | 4662.4 | USD | 20251127 |
| Shandong Hongyang Chem | China national standards | MT | 4944.97 | USD | 20251127 |
| Weifang Sutong Chem | China national standards | MT | 4492.86 | USD | 20251127 |
| Weifang Yahua Chem | Industrial Grade | MT | 4803.68 | USD | 20251127 |
| Shandong Zhiheng | China national standards | MT | 4944.97 | USD | 20251127 |
| Shouguang ZixuChem | Industrial Grade | MT | 4662.4 | USD | 20251127 |