| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 971.07 | USD | 20250915 |
| Qingdao Shengze Chem | China national standards | MT | 971.07 | USD | 20250915 |
| Shandong Xima | China national standards | MT | 985.14 | USD | 20250915 |
| Shandong Qiangsen Chem | China national standards | MT | 985.14 | USD | 20250915 |
| Shandong Langchem | China national standards | MT | 1076.62 | USD | 20250915 |
| Shandong Langchem | China national standards | MT | 1097.73 | USD | 20250915 |
| Shandong Langchem | China national standards | MT | 1097.73 | USD | 20250915 |
| Shandong Langchem | China national standards | MT | 1252.53 | USD | 20250915 |
| Shandong Langchem | China national standards | MT | 1280.68 | USD | 20250915 |
| Shandong Langchem | China national standards | MT | 1104.76 | USD | 20250915 |