| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 280.0 | USD | 20180114 |
| Unknown | China national standards | MT | 1880.0 | USD | 20180113 |
| Unknown | China national standards | MT | 280.0 | USD | 20180113 |
| Unknown | China national standards | MT | 1870.0 | USD | 20180110 |
| Unknown | China national standards | MT | 1830.0 | USD | 20180101 |
| Unknown | China national standards | MT | 280.0 | USD | 20180101 |
| Unknown | China national standards | MT | 1830.0 | USD | 20171223 |
| Unknown | China national standards | MT | 1430.0 | USD | 20171223 |
| Unknown | China national standards | MT | 1430.0 | USD | 20171221 |
| Unknown | China national standards | MT | 280.0 | USD | 20171219 |