| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 830.76 | USD | 20250912 |
| Qingdao Shengze Chem | China national standards | MT | 830.59 | USD | 20250911 |
| Qingdao Shengze Chem | China national standards | MT | 830.59 | USD | 20250911 |
| Qingdao Shengze Chem | China national standards | MT | 830.59 | USD | 20250911 |
| Qingdao Shengze Chem | China national standards | MT | 830.59 | USD | 20250911 |
| Qingdao Shengze Chem | China national standards | MT | 830.59 | USD | 20250911 |
| Qingdao Shengze Chem | China national standards | MT | 830.65 | USD | 20250908 |
| Qingdao Shengze Chem | China national standards | MT | 830.65 | USD | 20250908 |
| Qingdao Shengze Chem | China national standards | MT | 830.65 | USD | 20250908 |
| Qingdao Shengze Chem | China national standards | MT | 830.24 | USD | 20250905 |