| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 2880.0 | USD | 20190501 |
| Unknown | China national standards | MT | 2800.0 | USD | 20190501 |
| Unknown | China national standards | MT | 2810.0 | USD | 20190423 |
| Unknown | China national standards | MT | 18840.0 | USD | 20190420 |
| Unknown | China national standards | MT | 19220.0 | USD | 20190415 |
| Unknown | China national standards | MT | 2880.0 | USD | 20190413 |
| Unknown | China national standards | MT | 2800.0 | USD | 20190412 |
| Unknown | China national standards | MT | 19230.0 | USD | 20190411 |
| Unknown | China national standards | MT | 2880.0 | USD | 20190401 |
| Unknown | China national standards | MT | 18800.0 | USD | 20190401 |