| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai Guoke | China national standards | MT | 260.01 | USD | 20250926 |
| Shanghai Guoke | China national standards | MT | 260.35 | USD | 20250925 |
| Shanghai Guoke | China national standards | MT | 260.35 | USD | 20250924 |
| Shanghai Guoke | China national standards | MT | 260.35 | USD | 20250923 |
| Shanghai Guoke | China national standards | MT | 260.17 | USD | 20250922 |
| Shanghai Guoke | China national standards | MT | 260.09 | USD | 20250919 |
| Shanghai Guoke | China national standards | MT | 232.12 | USD | 20250918 |