| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chem | China national standards | MT | 1136.25 | USD | 20250821 |
| Shandong Yeyang Chem | China national standards | MT | 1143.27 | USD | 20250821 |
| Shandong Mengkanda Chem | China national standards | MT | 1071.67 | USD | 20250820 |
| Shandong Mengkanda Chem | China national standards | MT | 1071.67 | USD | 20250820 |
| Qingdao Shengze Chem | China national standards | MT | 1400.87 | USD | 20250820 |
| Qingdao Shengze Chem | China national standards | MT | 1400.87 | USD | 20250820 |
| Shandong Junfeng | China national standards | MT | 917.57 | USD | 20250820 |
| Shandong Junfeng | China national standards | MT | 910.57 | USD | 20250820 |
| Shandong Xingpeng Chem | China national standards | MT | 1442.9 | USD | 20250820 |
| Shandong Xima | China national standards | MT | 840.52 | USD | 20250820 |