| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1190.39 | USD | 20250811 |
| Shandong Langchem | China national standards | MT | 1169.39 | USD | 20250811 |
| Shandong Langchem | China national standards | MT | 1204.4 | USD | 20250811 |
| Shandong Xima | China national standards | MT | 952.31 | USD | 20250811 |
| Shandong Qiangsen Chem | China national standards | MT | 980.32 | USD | 20250811 |
| Shandong Junfeng | China national standards | MT | 1190.39 | USD | 20250811 |
| Shandong Xingpeng Chem | China national standards | MT | 1064.69 | USD | 20250810 |
| Shandong Xingpeng Chem | China national standards | MT | 1064.69 | USD | 20250809 |
| Shandong Langchem | China national standards | MT | 1204.79 | USD | 20250809 |
| Shandong Langchem | China national standards | MT | 1169.76 | USD | 20250809 |