| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 270.0 | USD | 20180512 |
| Unknown | China national standards | MT | 220.0 | USD | 20180511 |
| Unknown | China national standards | MT | 1410.0 | USD | 20180501 |
| Unknown | China national standards | MT | 1720.0 | USD | 20180501 |
| Unknown | China national standards | MT | 1820.0 | USD | 20180423 |
| Unknown | China national standards | MT | 290.0 | USD | 20180418 |
| Unknown | China national standards | MT | 290.0 | USD | 20180413 |
| Unknown | China national standards | MT | 1830.0 | USD | 20180401 |
| Unknown | China national standards | MT | 290.0 | USD | 20180321 |
| Unknown | China national standards | MT | 1820.0 | USD | 20180319 |