| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 3300.0 | USD | 20190411 |
| Unknown | China national standards | MT | 920.0 | USD | 20190410 |
| Unknown | China national standards | MT | 3290.0 | USD | 20190401 |
| Unknown | China national standards | MT | 130.0 | USD | 20190318 |
| Unknown | China national standards | MT | 680.0 | USD | 20190318 |
| Unknown | China national standards | MT | 4510.0 | USD | 20190315 |
| Unknown | China national standards | MT | 130.0 | USD | 20190314 |
| Unknown | China national standards | MT | 680.0 | USD | 20190314 |
| Unknown | China national standards | MT | 870.0 | USD | 20190313 |
| Unknown | China national standards | MT | 120.0 | USD | 20190312 |