| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 6130.0 | USD | 20180601 |
| Unknown | China national standards | MT | 6350.0 | USD | 20180601 |
| Unknown | China national standards | MT | 6650.0 | USD | 20180523 |
| Unknown | China national standards | MT | 6370.0 | USD | 20180523 |
| Unknown | China national standards | MT | 1040.0 | USD | 20180522 |
| Unknown | China national standards | MT | 1040.0 | USD | 20180521 |
| Unknown | China national standards | MT | 970.0 | USD | 20180521 |
| Unknown | China national standards | MT | 1720.0 | USD | 20180520 |
| Unknown | China national standards | MT | 6540.0 | USD | 20180520 |
| Unknown | China national standards | MT | 6540.0 | USD | 20180518 |