| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 20.0 | USD | 20190101 |
| Unknown | China national standards | MT | 20.0 | USD | 20190101 |
| Unknown | China national standards | MT | 1230.0 | USD | 20190101 |
| Unknown | China national standards | MT | 680.0 | USD | 20190101 |
| Unknown | China national standards | MT | 1890.0 | USD | 20181223 |
| Unknown | China national standards | MT | 180.0 | USD | 20181223 |
| Unknown | China national standards | MT | 100.0 | USD | 20181222 |
| Unknown | China national standards | MT | 910.0 | USD | 20181221 |
| Unknown | China national standards | MT | 10.0 | USD | 20181220 |
| Unknown | China national standards | MT | 70.0 | USD | 20181220 |