| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng | China national standards | MT | 840.68 | USD | 20250816 |
| Shandong Laya Chem | China national standards | MT | 784.63 | USD | 20250816 |
| Shandong Laya Chem | China national standards | MT | 784.63 | USD | 20250816 |
| Qingdao Shengze Chem | China national standards | MT | 819.66 | USD | 20250816 |
| Qingdao Shengze Chem | China national standards | MT | 819.66 | USD | 20250816 |
| Shandong Xingpeng Chem | China national standards | MT | 784.63 | USD | 20250816 |
| Zibo Lishuo Chem | China national standards | MT | 910.73 | USD | 20250816 |
| Zibo Lishuo Chem | China national standards | MT | 910.73 | USD | 20250816 |
| Zibo Lishuo Chem | China national standards | MT | 910.73 | USD | 20250816 |
| Zibo Lishuo Chem | China national standards | MT | 910.73 | USD | 20250816 |