| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 233.19 | USD | 20251201 |
| Qingdao Shengze Chem | China national standards | MT | 233.19 | USD | 20251201 |
| Qingdao Shengze Chem | China national standards | MT | 233.09 | USD | 20251130 |
| Qingdao Shengze Chem | China national standards | MT | 233.09 | USD | 20251130 |
| Qingdao Shengze Chem | China national standards | MT | 233.09 | USD | 20251129 |
| Qingdao Shengze Chem | China national standards | MT | 233.09 | USD | 20251128 |
| Qingdao Shengze Chem | China national standards | MT | 233.09 | USD | 20251128 |
| Qingdao Shengze Chem | China national standards | MT | 240.18 | USD | 20251127 |
| Qingdao Shengze Chem | China national standards | MT | 240.18 | USD | 20251127 |
| Qingdao Shengze Chem | China national standards | MT | 240.13 | USD | 20251126 |