| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 229.18 | USD | 20251211 |
| Qingdao Shengze Chem | China national standards | MT | 229.18 | USD | 20251211 |
| Qingdao Shengze Chem | China national standards | MT | 228.97 | USD | 20251210 |
| Qingdao Shengze Chem | China national standards | MT | 228.97 | USD | 20251210 |
| Qingdao Shengze Chem | China national standards | MT | 228.9 | USD | 20251209 |
| Qingdao Shengze Chem | China national standards | MT | 228.9 | USD | 20251209 |
| Qingdao Shengze Chem | China national standards | MT | 228.93 | USD | 20251208 |
| Qingdao Shengze Chem | China national standards | MT | 228.93 | USD | 20251208 |
| Qingdao Shengze Chem | China national standards | MT | 233.22 | USD | 20251207 |
| Qingdao Shengze Chem | China national standards | MT | 233.22 | USD | 20251207 |