| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 1240.0 | USD | 20180912 |
| Unknown | China national standards | MT | 230.0 | USD | 20180910 |
| Unknown | China national standards | MT | 1570.0 | USD | 20180910 |
| Unknown | China national standards | MT | 1440.0 | USD | 20180901 |
| Unknown | China national standards | MT | 1420.0 | USD | 20180822 |
| Unknown | China national standards | MT | 1340.0 | USD | 20180821 |
| Unknown | China national standards | MT | 210.0 | USD | 20180815 |
| Unknown | China national standards | MT | 200.0 | USD | 20180811 |
| Unknown | China national standards | MT | 1420.0 | USD | 20180801 |
| Unknown | China national standards | MT | 1340.0 | USD | 20180801 |