| Vendor | Spec | Unit | Price | Currency | Date |
| Wuhan Hengjiu Chem | China national standards | MT | 281.47 | USD | 20251001 |
| Wuhan Hengjiu Chem | China national standards | MT | 281.47 | USD | 20250930 |
| Wuhan Hengjiu Chem | China national standards | MT | 281.34 | USD | 20250929 |
| Wuhan Hengjiu Chem | China national standards | MT | 281.09 | USD | 20250926 |
| Wuhan Hengjiu Chem | China national standards | MT | 281.46 | USD | 20250925 |
| Wuhan Hengjiu Chem | China national standards | MT | 281.46 | USD | 20250924 |
| Wuhan Hengjiu Chem | China national standards | MT | 281.46 | USD | 20250923 |
| Wuhan Hengjiu Chem | China national standards | MT | 281.27 | USD | 20250922 |
| Wuhan Hengjiu Chem | China national standards | MT | 281.18 | USD | 20250920 |
| Wuhan Hengjiu Chem | China national standards | MT | 281.35 | USD | 20250918 |