| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 1098.96 | USD | 20250615 |
| Qingdao Shengze Chem | China national standards | MT | 1098.96 | USD | 20250614 |
| Shandong Fusheng | China national standards | MT | 959.85 | USD | 20250613 |
| Shandong Fusheng | China national standards | MT | 959.85 | USD | 20250613 |
| Qingdao Shengze Chem | China national standards | MT | 1098.96 | USD | 20250613 |
| Qingdao Shengze Chem | China national standards | MT | 1098.96 | USD | 20250612 |
| Shandong Fusheng | China national standards | MT | 959.85 | USD | 20250611 |
| Shandong Fusheng | China national standards | MT | 959.85 | USD | 20250611 |
| Qingdao Shengze Chem | China national standards | MT | 1098.96 | USD | 20250611 |
| Qingdao Shengze Chem | China national standards | MT | 1098.96 | USD | 20250610 |