| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chem | China national standards | MT | 1141.71 | USD | 20250820 |
| Shandong Yeyang Chem | China national standards | MT | 1134.71 | USD | 20250820 |
| Shandong Mengkanda Chem | China national standards | MT | 1072.04 | USD | 20250819 |
| Shandong Mengkanda Chem | China national standards | MT | 1072.04 | USD | 20250819 |
| Qingdao Shengze Chem | China national standards | MT | 1401.36 | USD | 20250819 |
| Qingdao Shengze Chem | China national standards | MT | 1401.36 | USD | 20250819 |
| Shandong Xingpeng Chem | China national standards | MT | 1443.41 | USD | 20250819 |
| Shandong Xima | China national standards | MT | 840.82 | USD | 20250819 |
| Shandong Qiangsen Chem | China national standards | MT | 1051.02 | USD | 20250819 |
| Shandong Yeyang Chem | China national standards | MT | 1142.11 | USD | 20250819 |