| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 270.0 | USD | 20190501 |
| Unknown | China national standards | MT | 1420.0 | USD | 20190501 |
| Unknown | China national standards | MT | 230.0 | USD | 20190422 |
| Unknown | China national standards | MT | 710.0 | USD | 20190420 |
| Unknown | China national standards | MT | 1170.0 | USD | 20190419 |
| Unknown | China national standards | MT | 7930.0 | USD | 20190418 |
| Unknown | China national standards | MT | 230.0 | USD | 20190416 |
| Unknown | China national standards | MT | 1570.0 | USD | 20190413 |
| Unknown | China national standards | MT | 1570.0 | USD | 20190410 |
| Unknown | China national standards | MT | 710.0 | USD | 20190410 |