| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 844.21 | USD | 20250901 |
| Shandong Fusheng | China national standards | MT | 844.21 | USD | 20250901 |
| Shandong Fusheng | Industrial Grade | MT | 900.5 | USD | 20250901 |
| Shandong Fusheng | China national standards | MT | 900.5 | USD | 20250901 |
| Shandong Xingpeng Chem | China national standards | MT | 647.61 | USD | 20250831 |
| Qingdao Shengze Chem | China national standards | MT | 816.56 | USD | 20250831 |
| Qingdao Shengze Chem | Industrial Grade | MT | 816.56 | USD | 20250831 |
| Qingdao Shengze Chem | Industrial Grade | MT | 816.56 | USD | 20250830 |
| Qingdao Shengze Chem | China national standards | MT | 816.56 | USD | 20250830 |
| Shandong Xingpeng Chem | China national standards | MT | 647.61 | USD | 20250830 |