| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 620.0 | USD | 20190514 |
| Unknown | China national standards | MT | 790.0 | USD | 20190512 |
| Unknown | China national standards | MT | 4200.0 | USD | 20190511 |
| Unknown | China national standards | MT | 5020.0 | USD | 20190511 |
| Unknown | China national standards | MT | 660.0 | USD | 20190510 |
| Unknown | China national standards | MT | 630.0 | USD | 20190510 |
| Unknown | China national standards | MT | 670.0 | USD | 20190510 |
| Unknown | China national standards | MT | 4300.0 | USD | 20190510 |
| Unknown | China national standards | MT | 5970.0 | USD | 20190501 |
| Unknown | China national standards | MT | 4640.0 | USD | 20190501 |