| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 1401.13 | USD | 20250817 |
| Qingdao Shengze Chem | China national standards | MT | 1401.13 | USD | 20250817 |
| Shandong Xingpeng Chem | China national standards | MT | 1443.16 | USD | 20250817 |
| Qingdao Shengze Chem | China national standards | MT | 1401.13 | USD | 20250816 |
| Qingdao Shengze Chem | China national standards | MT | 1401.13 | USD | 20250816 |
| Shandong Xingpeng Chem | China national standards | MT | 1443.16 | USD | 20250816 |
| Shandong Xima | China national standards | MT | 840.68 | USD | 20250816 |
| Shandong Qiangsen Chem | China national standards | MT | 1050.85 | USD | 20250816 |
| Qingdao Shengze Chem | China national standards | MT | 1401.13 | USD | 20250815 |
| Qingdao Shengze Chem | China national standards | MT | 1401.13 | USD | 20250815 |