| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chem | China national standards | MT | 966.78 | USD | 20250815 |
| Shandong Jinwen Chem | China national standards | MT | 966.78 | USD | 20250815 |
| Qingdao Shengze Chem | China national standards | MT | 967.24 | USD | 20250814 |
| Qingdao Shengze Chem | China national standards | MT | 967.24 | USD | 20250814 |
| Shandong Xima | China national standards | MT | 911.17 | USD | 20250814 |
| Shandong Langchem | China national standards | MT | 1166.3 | USD | 20250814 |
| Shandong Langchem | China national standards | MT | 1241.99 | USD | 20250814 |
| Shandong Jinwen Chem | China national standards | MT | 967.24 | USD | 20250814 |
| Shandong Jinwen Chem | China national standards | MT | 967.24 | USD | 20250814 |
| Shandong Jinwen Chem | China national standards | MT | 1093.4 | USD | 20250814 |