| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1107.65 | USD | 20250818 |
| Shandong Langchem | China national standards | MT | 1107.65 | USD | 20250818 |
| Shandong Langchem | China national standards | MT | 1093.63 | USD | 20250818 |
| Qingdao Shengze Chem | China national standards | MT | 910.73 | USD | 20250817 |
| Shandong Xingpeng Chem | China national standards | MT | 938.76 | USD | 20250817 |
| Qingdao Shengze Chem | China national standards | MT | 910.73 | USD | 20250816 |
| Shandong Xingpeng Chem | China national standards | MT | 938.76 | USD | 20250816 |
| Shandong Xima | China national standards | MT | 882.71 | USD | 20250816 |
| Shandong Qiangsen Chem | China national standards | MT | 924.75 | USD | 20250816 |
| Shandong Qiangsen Chem | China national standards | MT | 924.75 | USD | 20250816 |