| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 1512.07 | USD | 20251208 |
| Jinan Jinrihe Chem | China national standards | MT | 1695.78 | USD | 20251208 |
| Shandong Huize Chem | China national standards | MT | 1342.49 | USD | 20251208 |
| Jinan Jiaxing Chem | China national standards | MT | 989.2 | USD | 20251208 |
| Jinan Aochen Chem | China national standards | MT | 1314.23 | USD | 20251208 |
| Shandong Yaoming Chem | China national standards | MT | 1081.06 | USD | 20251208 |
| Qingdao Shengze Chem | China national standards | MT | 1512.07 | USD | 20251208 |
| Qingdao Shengze Chem | China national standards | MT | 1512.07 | USD | 20251208 |
| Qingdao Shengze Chem | China national standards | MT | 1512.07 | USD | 20251208 |
| Shandong Hongyang Chem | China national standards | MT | 1130.52 | USD | 20251208 |