| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 255.79 | USD | 20250926 |
| Qingdao Shengze Chem | China national standards | MT | 255.79 | USD | 20250926 |
| Qingdao Shengze Chem | China national standards | MT | 256.13 | USD | 20250925 |
| Qingdao Shengze Chem | China national standards | MT | 256.13 | USD | 20250925 |
| Qingdao Shengze Chem | China national standards | MT | 256.13 | USD | 20250924 |
| Qingdao Shengze Chem | China national standards | MT | 256.13 | USD | 20250924 |
| Qingdao Shengze Chem | China national standards | MT | 256.13 | USD | 20250923 |
| Qingdao Shengze Chem | China national standards | MT | 256.13 | USD | 20250923 |
| Qingdao Shengze Chem | China national standards | MT | 255.96 | USD | 20250922 |
| Qingdao Shengze Chem | China national standards | MT | 255.96 | USD | 20250922 |