| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chem | China national standards | MT | 1434.03 | USD | 20250920 |
| Jinan Dezheng Chem | China national standards | MT | 1434.03 | USD | 20250920 |
| Jinan Dezheng Chem | China national standards | MT | 1434.03 | USD | 20250920 |
| Jinan Dezheng Chem | China national standards | MT | 1434.03 | USD | 20250920 |
| Shandong Shuojia Chem | China national standards | MT | 1785.51 | USD | 20250920 |
| Shandong Langchem | China national standards | MT | 1166.91 | USD | 20250920 |
| Shandong Langchem | China national standards | MT | 1169.72 | USD | 20250920 |
| Shandong Langchem | China national standards | MT | 1169.72 | USD | 20250920 |
| Dongying Lianchem | China national standards | MT | 1169.72 | USD | 20250920 |
| Shandong Langchem | China national standards | MT | 1180.97 | USD | 20250920 |