| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Aochen Chem | China national standards | MT | 1271.67 | USD | 20251209 |
| Shandong Jinshenrun Chem | China national standards | MT | 1582.52 | USD | 20251209 |
| Nantong Zhonghe Chem | China national standards | MT | 1582.52 | USD | 20251209 |
| Shandong Haili Chem | China national standards | MT | 1695.56 | USD | 20251209 |
| Jinan Aochen Chem | China national standards | MT | 1314.06 | USD | 20251209 |
| Qingdao Shengze Chem | China national standards | MT | 1511.88 | USD | 20251209 |
| Shandong Hongyang Chem | China national standards | MT | 1130.37 | USD | 20251209 |
| Shandong Langchem | China national standards | MT | 1175.59 | USD | 20251209 |
| Dongying Lianchem | China national standards | MT | 1175.74 | USD | 20251208 |
| Shandong Jinshenrun Chem | China national standards | MT | 1582.73 | USD | 20251208 |