| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 816.56 | USD | 20250831 |
| Shandong Xingpeng Chem | China national standards | MT | 865.83 | USD | 20250831 |
| Shandong Qiancheng | China national standards | MT | 844.71 | USD | 20250831 |
| Qingdao Shengze Chem | China national standards | MT | 816.56 | USD | 20250830 |
| Qingdao Shengze Chem | China national standards | MT | 816.56 | USD | 20250830 |
| Shandong Xingpeng Chem | China national standards | MT | 865.83 | USD | 20250830 |
| Zibo Lishuo Chem | China national standards | MT | 915.11 | USD | 20250830 |
| Zibo Lishuo Chem | China national standards | MT | 915.11 | USD | 20250830 |
| Zibo Lishuo Chem | China national standards | MT | 915.11 | USD | 20250830 |
| Zibo Lishuo Chem | China national standards | MT | 915.11 | USD | 20250830 |