| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 1320.0 | USD | 20180919 |
| Unknown | China national standards | MT | 3920.0 | USD | 20180917 |
| Unknown | China national standards | MT | 1320.0 | USD | 20180913 |
| Unknown | China national standards | MT | 570.0 | USD | 20180901 |
| Unknown | China national standards | MT | 590.0 | USD | 20180823 |
| Unknown | China national standards | MT | 3890.0 | USD | 20180818 |
| Unknown | China national standards | MT | 580.0 | USD | 20180815 |
| Unknown | China national standards | MT | 3920.0 | USD | 20180801 |
| Unknown | China national standards | MT | 610.0 | USD | 20180723 |
| Unknown | China national standards | MT | 3960.0 | USD | 20180718 |