| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Qixiang Chem | China national standards | MT | 843.86 | USD | 20251009 |
| Zibo Qixiang Chem | China national standards | MT | 731.83 | USD | 20251005 |
| Zibo Qixiang Chem | China national standards | MT | 844.42 | USD | 20250930 |
| Zibo Qixiang Chem | China national standards | MT | 844.01 | USD | 20250929 |
| Zibo Qixiang Chem | China national standards | MT | 843.27 | USD | 20250926 |
| Zibo Qixiang Chem | China national standards | MT | 844.39 | USD | 20250925 |
| Zibo Qixiang Chem | China national standards | MT | 731.81 | USD | 20250925 |
| Zibo Qixiang Chem | China national standards | MT | 844.39 | USD | 20250924 |
| Zibo Qixiang Chem | China national standards | MT | 731.81 | USD | 20250924 |
| Zibo Qixiang Chem | China national standards | MT | 844.39 | USD | 20250923 |