| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chem | China national standards | MT | 851.76 | USD | 20250908 |
| Shandong Jinwen Chem | China national standards | MT | 851.76 | USD | 20250908 |
| Shandong Laya Chem | China national standards | MT | 746.17 | USD | 20250908 |
| Shandong Laya Chem | China national standards | MT | 746.17 | USD | 20250908 |
| Shandong Fusheng | China national standards | MT | 788.41 | USD | 20250908 |
| Shandong Laya Chem | China national standards | MT | 745.81 | USD | 20250907 |
| Shandong Fusheng | China national standards | MT | 788.02 | USD | 20250906 |
| Zibo Lishuo Chem | China national standards | MT | 816.17 | USD | 20250906 |
| Zibo Lishuo Chem | China national standards | MT | 816.17 | USD | 20250906 |
| Zibo Lishuo Chem | China national standards | MT | 816.17 | USD | 20250906 |