| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chem | China national standards | MT | 969.63 | USD | 20250825 |
| Shandong Jinwen Chem | China national standards | MT | 969.63 | USD | 20250825 |
| Shandong Jinwen Chem | China national standards | MT | 1096.11 | USD | 20250825 |
| Shandong Xima | China national standards | MT | 913.42 | USD | 20250825 |
| Shandong Langchem | China national standards | MT | 1242.27 | USD | 20250823 |
| Shandong Langchem | China national standards | MT | 1166.56 | USD | 20250823 |
| Shandong Jinwen Chem | China national standards | MT | 1093.65 | USD | 20250823 |
| Shandong Jinwen Chem | China national standards | MT | 967.46 | USD | 20250823 |
| Shandong Jinwen Chem | China national standards | MT | 967.46 | USD | 20250823 |
| Qingdao Shengze Chem | China national standards | MT | 967.46 | USD | 20250823 |