| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 470.0 | USD | 20180301 |
| Unknown | China national standards | MT | 50.0 | USD | 20180301 |
| Unknown | China national standards | MT | 1620.0 | USD | 20180223 |
| Unknown | China national standards | MT | 50.0 | USD | 20180222 |
| Unknown | China national standards | MT | 310.0 | USD | 20180218 |
| Unknown | China national standards | MT | 310.0 | USD | 20180217 |
| Unknown | China national standards | MT | 10350.0 | USD | 20180201 |
| Unknown | China national standards | MT | 10350.0 | USD | 20180201 |
| Unknown | China national standards | MT | 50.0 | USD | 20180201 |
| Unknown | China national standards | MT | 1630.0 | USD | 20180201 |