| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 250.0 | USD | 20180701 |
| Unknown | China national standards | MT | 270.0 | USD | 20180623 |
| Unknown | China national standards | MT | 1650.0 | USD | 20180621 |
| Unknown | China national standards | MT | 1520.0 | USD | 20180619 |
| Unknown | China national standards | MT | 280.0 | USD | 20180618 |
| Unknown | China national standards | MT | 280.0 | USD | 20180617 |
| Unknown | China national standards | MT | 240.0 | USD | 20180616 |
| Unknown | China national standards | MT | 250.0 | USD | 20180616 |
| Unknown | China national standards | MT | 1660.0 | USD | 20180615 |
| Unknown | China national standards | MT | 1760.0 | USD | 20180615 |