| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chem | China national standards | MT | 1142.34 | USD | 20250807 |
| Shandong Xima | China national standards | MT | 840.23 | USD | 20250806 |
| Shandong Langchem | China national standards | MT | 1162.32 | USD | 20250806 |
| Shandong Langchem | China national standards | MT | 1165.12 | USD | 20250806 |
| Dongying Lianchem | China national standards | MT | 1165.12 | USD | 20250806 |
| Shandong Langchem | China national standards | MT | 1176.32 | USD | 20250806 |
| Shandong Langchem | China national standards | MT | 1165.12 | USD | 20250806 |
| Shandong Langchem | China national standards | MT | 1165.12 | USD | 20250806 |
| Qingdao Shengze Chem | China national standards | MT | 1400.38 | USD | 20250806 |
| Qingdao Shengze Chem | China national standards | MT | 1400.38 | USD | 20250806 |