| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Chem | China national standards | MT | 830.34 | USD | 20250930 |
| Shandong Xingpeng Chem | China national standards | MT | 829.95 | USD | 20250929 |
| Shandong Xingpeng Chem | China national standards | MT | 829.21 | USD | 20250928 |
| Shandong Xingpeng Chem | China national standards | MT | 829.21 | USD | 20250927 |
| Shandong Xingpeng Chem | China national standards | MT | 829.21 | USD | 20250926 |
| Shandong Xingpeng Chem | China national standards | MT | 830.32 | USD | 20250925 |
| Shandong Xingpeng Chem | China national standards | MT | 823.28 | USD | 20250924 |
| Shandong Xingpeng Chem | China national standards | MT | 823.28 | USD | 20250923 |
| Shandong Xingpeng Chem | China national standards | MT | 822.72 | USD | 20250922 |
| Shandong Xingpeng Chem | China national standards | MT | 822.46 | USD | 20250921 |