| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 350.0 | USD | 20190822 |
| Unknown | China national standards | MT | 50.0 | USD | 20190821 |
| Unknown | China national standards | MT | 440.0 | USD | 20190821 |
| Unknown | China national standards | MT | 50.0 | USD | 20190820 |
| Unknown | China national standards | MT | 360.0 | USD | 20190820 |
| Unknown | China national standards | MT | 50.0 | USD | 20190819 |
| Unknown | China national standards | MT | 370.0 | USD | 20190819 |
| Unknown | China national standards | MT | 370.0 | USD | 20190819 |
| Unknown | China national standards | MT | 50.0 | USD | 20190818 |
| Unknown | China national standards | MT | 360.0 | USD | 20190818 |