| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinshenrun Chem | China national standards | MT | 1581.36 | USD | 20251115 |
| Shandong Langchem | China national standards | MT | 1174.73 | USD | 20251115 |
| Shandong Yihe Chem | China national standards | MT | 1623.72 | USD | 20251115 |
| Qingdao Shengze Chem | China national standards | MT | 1595.48 | USD | 20251115 |
| Shandong Langchem | China national standards | MT | 1171.9 | USD | 20251114 |
| Shandong Shuojia Chem | China national standards | MT | 1567.24 | USD | 20251114 |
| Shandong Langchem | China national standards | MT | 1174.73 | USD | 20251114 |
| Shandong Langchem | China national standards | MT | 1174.73 | USD | 20251114 |
| Shandong Langchem | China national standards | MT | 1174.73 | USD | 20251114 |
| Shandong Langchem | China national standards | MT | 1186.02 | USD | 20251114 |