| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Chem | China national standards | MT | 844.73 | USD | 20250908 |
| Shandong Xingpeng Chem | China national standards | MT | 844.31 | USD | 20250907 |
| Shandong Xingpeng Chem | China national standards | MT | 844.45 | USD | 20250904 |
| Shandong Xingpeng Chem | China national standards | MT | 842.84 | USD | 20250826 |
| Shandong Xingpeng Chem | China national standards | MT | 843.16 | USD | 20250825 |
| Shandong Xingpeng Chem | China national standards | MT | 854.53 | USD | 20250820 |
| Shandong Xingpeng Chem | China national standards | MT | 854.83 | USD | 20250819 |
| Shandong Xingpeng Chem | China national standards | MT | 855.28 | USD | 20250818 |
| Shandong Xingpeng Chem | China national standards | MT | 854.69 | USD | 20250817 |
| Shandong Xingpeng Chem | China national standards | MT | 854.69 | USD | 20250816 |