| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 1070.0 | USD | 20190522 |
| Unknown | China national standards | MT | 960.0 | USD | 20190521 |
| Unknown | China national standards | MT | 760.0 | USD | 20190521 |
| Unknown | China national standards | MT | 160.0 | USD | 20190520 |
| Unknown | China national standards | MT | 1170.0 | USD | 20190519 |
| Unknown | China national standards | MT | 170.0 | USD | 20190518 |
| Unknown | China national standards | MT | 170.0 | USD | 20190517 |
| Unknown | China national standards | MT | 110.0 | USD | 20190517 |
| Unknown | China national standards | MT | 760.0 | USD | 20190517 |
| Unknown | China national standards | MT | 1070.0 | USD | 20190516 |