| Vendor | Spec | Unit | Price | Currency | Date |
| Luzhou Lutianhua | China national standards | MT | 310.96 | USD | 20260327 |
| Luzhou Lutianhua | China national standards | MT | 311.34 | USD | 20260326 |
| Luzhou Lutianhua | China national standards | MT | 312.0 | USD | 20260325 |
| Luzhou Lutianhua | China national standards | MT | 311.85 | USD | 20260324 |
| Luzhou Lutianhua | China national standards | MT | 311.41 | USD | 20260323 |