| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 1160.0 | USD | 20190219 |
| Unknown | China national standards | MT | 1360.0 | USD | 20190218 |
| Unknown | China national standards | MT | 1110.0 | USD | 20190216 |
| Unknown | China national standards | MT | 200.0 | USD | 20190215 |
| Unknown | China national standards | MT | 170.0 | USD | 20190215 |
| Unknown | China national standards | MT | 230.0 | USD | 20190213 |
| Unknown | China national standards | MT | 1610.0 | USD | 20190210 |
| Unknown | China national standards | MT | 200.0 | USD | 20190210 |
| Unknown | China national standards | MT | 240.0 | USD | 20190201 |
| Unknown | China national standards | MT | 170.0 | USD | 20190201 |