| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 550220.0 | USD | 20190901 |
| Unknown | China national standards | MT | 555090.0 | USD | 20190901 |
| Unknown | China national standards | MT | 82530.0 | USD | 20190820 |
| Unknown | China national standards | MT | 558680.0 | USD | 20190818 |
| Unknown | China national standards | MT | 81220.0 | USD | 20190815 |
| Unknown | China national standards | MT | 82680.0 | USD | 20190813 |
| Unknown | China national standards | MT | 558570.0 | USD | 20190813 |
| Unknown | China national standards | MT | 570530.0 | USD | 20190812 |
| Unknown | China national standards | MT | 82790.0 | USD | 20190801 |
| Unknown | China national standards | MT | 581060.0 | USD | 20190801 |