| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 1513.74 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1177.04 | USD | 20251211 |
| Jinan Aochen Chem | China national standards | MT | 1358.12 | USD | 20251211 |
| Jiangsu Yingte Chem | China national standards | MT | 1358.12 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1177.04 | USD | 20251211 |
| Shandong Yushuo Chem | China national standards | MT | 1570.33 | USD | 20251211 |
| Shandong Shuojia Chem | China national standards | MT | 1570.33 | USD | 20251211 |
| Dongying Hebang Chem | China national standards | MT | 1358.12 | USD | 20251211 |
| Aite Zhejiang | China national standards | MT | 1273.24 | USD | 20251211 |
| Qingdao Shengze Chem | China national standards | MT | 1513.74 | USD | 20251211 |