| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chem | China national standards | MT | 760.27 | USD | 20250916 |
| Shandong Laya Chem | China national standards | MT | 759.96 | USD | 20250915 |
| Shandong Laya Chem | China national standards | MT | 760.48 | USD | 20250909 |
| Shandong Laya Chem | China national standards | MT | 760.48 | USD | 20250909 |
| Shandong Laya Chem | China national standards | MT | 760.25 | USD | 20250908 |
| Shandong Laya Chem | China national standards | MT | 760.25 | USD | 20250908 |
| Shandong Laya Chem | China national standards | MT | 759.88 | USD | 20250907 |
| Shandong Laya Chem | China national standards | MT | 759.88 | USD | 20250906 |
| Shandong Laya Chem | China national standards | MT | 759.61 | USD | 20250902 |
| Shandong Laya Chem | China national standards | MT | 759.79 | USD | 20250901 |