| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 910.0 | USD | 20190321 |
| Unknown | China national standards | MT | 890.0 | USD | 20190321 |
| Unknown | China national standards | MT | 880.0 | USD | 20190320 |
| Unknown | China national standards | MT | 130.0 | USD | 20190318 |
| Unknown | China national standards | MT | 130.0 | USD | 20190318 |
| Unknown | China national standards | MT | 880.0 | USD | 20190317 |
| Unknown | China national standards | MT | 1030.0 | USD | 20190317 |
| Unknown | China national standards | MT | 170.0 | USD | 20190315 |
| Unknown | China national standards | MT | 130.0 | USD | 20190315 |
| Unknown | China national standards | MT | 120.0 | USD | 20190314 |