| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 490.0 | USD | 20190301 |
| Unknown | China national standards | MT | 50.0 | USD | 20190301 |
| Unknown | China national standards | MT | 480.0 | USD | 20190222 |
| Unknown | China national standards | MT | 470.0 | USD | 20190221 |
| Unknown | China national standards | MT | 2750.0 | USD | 20190220 |
| Unknown | China national standards | MT | 3450.0 | USD | 20190220 |
| Unknown | China national standards | MT | 3150.0 | USD | 20190219 |
| Unknown | China national standards | MT | 1270.0 | USD | 20190219 |
| Unknown | China national standards | MT | 2750.0 | USD | 20190217 |
| Unknown | China national standards | MT | 310.0 | USD | 20190217 |