| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 239.41 | USD | 20251013 |
| Qingdao Shengze Chem | China national standards | MT | 235.05 | USD | 20251012 |
| Qingdao Shengze Chem | China national standards | MT | 235.05 | USD | 20251012 |
| Qingdao Shengze Chem | China national standards | MT | 235.05 | USD | 20251011 |
| Qingdao Shengze Chem | China national standards | MT | 235.05 | USD | 20251011 |
| Qingdao Shengze Chem | China national standards | MT | 236.46 | USD | 20251010 |
| Qingdao Shengze Chem | China national standards | MT | 236.46 | USD | 20251010 |
| Qingdao Shengze Chem | China national standards | MT | 246.13 | USD | 20251009 |
| Qingdao Shengze Chem | China national standards | MT | 246.13 | USD | 20251009 |
| Qingdao Shengze Chem | China national standards | MT | 256.14 | USD | 20251008 |