| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 240.13 | USD | 20251126 |
| Qingdao Shengze Chem | China national standards | MT | 240.02 | USD | 20251125 |
| Qingdao Shengze Chem | China national standards | MT | 240.02 | USD | 20251125 |
| Qingdao Shengze Chem | China national standards | MT | 239.95 | USD | 20251124 |
| Qingdao Shengze Chem | China national standards | MT | 239.95 | USD | 20251124 |
| Qingdao Shengze Chem | China national standards | MT | 239.86 | USD | 20251123 |
| Qingdao Shengze Chem | China national standards | MT | 239.86 | USD | 20251123 |
| Qingdao Shengze Chem | China national standards | MT | 239.86 | USD | 20251122 |
| Qingdao Shengze Chem | China national standards | MT | 239.86 | USD | 20251121 |
| Qingdao Shengze Chem | China national standards | MT | 239.86 | USD | 20251121 |