| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 3970.0 | USD | 20180423 |
| Unknown | China national standards | MT | 4160.0 | USD | 20180422 |
| Unknown | China national standards | MT | 31400.0 | USD | 20180419 |
| Unknown | China national standards | MT | 31430.0 | USD | 20180417 |
| Unknown | China national standards | MT | 4930.0 | USD | 20180410 |
| Unknown | China national standards | MT | 4150.0 | USD | 20180410 |
| Unknown | China national standards | MT | 3980.0 | USD | 20180401 |
| Unknown | China national standards | MT | 26400.0 | USD | 20180401 |
| Unknown | China national standards | MT | 26410.0 | USD | 20180401 |
| Unknown | China national standards | MT | 4180.0 | USD | 20180401 |