| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 1760.0 | USD | 20180523 |
| Unknown | China national standards | MT | 1670.0 | USD | 20180522 |
| Unknown | China national standards | MT | 1460.0 | USD | 20180522 |
| Unknown | China national standards | MT | 250.0 | USD | 20180522 |
| Unknown | China national standards | MT | 280.0 | USD | 20180522 |
| Unknown | China national standards | MT | 230.0 | USD | 20180521 |
| Unknown | China national standards | MT | 300.0 | USD | 20180521 |
| Unknown | China national standards | MT | 1640.0 | USD | 20180521 |
| Unknown | China national standards | MT | 270.0 | USD | 20180520 |
| Unknown | China national standards | MT | 1700.0 | USD | 20180520 |