| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 4710.0 | USD | 20180501 |
| Unknown | China national standards | MT | 190.0 | USD | 20180501 |
| Unknown | China national standards | MT | 8160.0 | USD | 20180420 |
| Unknown | China national standards | MT | 8180.0 | USD | 20180417 |
| Unknown | China national standards | MT | 1290.0 | USD | 20180412 |
| Unknown | China national standards | MT | 1290.0 | USD | 20180401 |
| Unknown | China national standards | MT | 1640.0 | USD | 20180322 |
| Unknown | China national standards | MT | 1630.0 | USD | 20180321 |
| Unknown | China national standards | MT | 1800.0 | USD | 20180316 |
| Unknown | China national standards | MT | 1800.0 | USD | 20180310 |