| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 170.0 | USD | 20190823 |
| Unknown | China national standards | MT | 140.0 | USD | 20190822 |
| Unknown | China national standards | MT | 140.0 | USD | 20190822 |
| Unknown | China national standards | MT | 1060.0 | USD | 20190820 |
| Unknown | China national standards | MT | 960.0 | USD | 20190818 |
| Unknown | China national standards | MT | 170.0 | USD | 20190813 |
| Unknown | China national standards | MT | 1140.0 | USD | 20190812 |
| Unknown | China national standards | MT | 1060.0 | USD | 20190811 |
| Unknown | China national standards | MT | 160.0 | USD | 20190801 |
| Unknown | China national standards | MT | 1160.0 | USD | 20190801 |