| Vendor | Spec | Unit | Price | Currency | Date |
| Shangrao Hengtong | China national standards | MT | 471.45 | USD | 20250923 |
| Shangrao Hengtong | China national standards | MT | 471.13 | USD | 20250922 |
| Shangrao Hengtong | China national standards | MT | 470.98 | USD | 20250919 |
| Shangrao Hengtong | China national standards | MT | 464.23 | USD | 20250918 |