| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 2760.0 | USD | 20190619 |
| Unknown | China national standards | MT | 60.0 | USD | 20190615 |
| Unknown | China national standards | MT | 410.0 | USD | 20190613 |
| Unknown | China national standards | MT | 390.0 | USD | 20190613 |
| Unknown | China national standards | MT | 2760.0 | USD | 20190610 |
| Unknown | China national standards | MT | 410.0 | USD | 20190601 |
| Unknown | China national standards | MT | 390.0 | USD | 20190601 |
| Unknown | China national standards | MT | 60.0 | USD | 20190601 |
| Unknown | China national standards | MT | 340.0 | USD | 20190521 |
| Unknown | China national standards | MT | 450.0 | USD | 20190520 |