| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 71550.0 | USD | 20171123 |
| Unknown | China national standards | MT | 469510.0 | USD | 20171118 |
| Unknown | China national standards | MT | 71270.0 | USD | 20171110 |
| Unknown | China national standards | MT | 469350.0 | USD | 20171101 |
| Unknown | China national standards | MT | 68930.0 | USD | 20170819 |
| Unknown | China national standards | MT | 467040.0 | USD | 20170815 |
| Unknown | China national standards | MT | 467370.0 | USD | 20170813 |
| Unknown | China national standards | MT | 69040.0 | USD | 20170811 |