| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Lishuo Chem | China national standards | MT | 839.21 | USD | 20250801 |
| Zibo Lishuo Chem | China national standards | MT | 839.21 | USD | 20250801 |
| Shandong Qiangsen Chem | China national standards | MT | 811.23 | USD | 20250801 |
| Shandong Yeyang Chem | China national standards | MT | 811.23 | USD | 20250801 |
| Aite Zhejiang | China national standards | MT | 874.17 | USD | 20250801 |
| Aite Zhejiang | China national standards | MT | 881.17 | USD | 20250801 |
| Shandong Jinwen Chem | China national standards | MT | 979.08 | USD | 20250801 |