| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 1680.0 | USD | 20180901 |
| Unknown | China national standards | MT | 250.0 | USD | 20180819 |
| Unknown | China national standards | MT | 250.0 | USD | 20180814 |
| Unknown | China national standards | MT | 1650.0 | USD | 20180801 |
| Unknown | China national standards | MT | 1650.0 | USD | 20180801 |
| Unknown | China national standards | MT | 260.0 | USD | 20180722 |
| Unknown | China national standards | MT | 260.0 | USD | 20180721 |
| Unknown | China national standards | MT | 240.0 | USD | 20180720 |
| Unknown | China national standards | MT | 1570.0 | USD | 20180720 |
| Unknown | China national standards | MT | 1670.0 | USD | 20180719 |