| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 4190.0 | USD | 20190301 |
| Unknown | China national standards | MT | 4320.0 | USD | 20190301 |
| Unknown | China national standards | MT | 620.0 | USD | 20190301 |
| Unknown | China national standards | MT | 1060.0 | USD | 20190301 |
| Unknown | China national standards | MT | 560.0 | USD | 20190222 |
| Unknown | China national standards | MT | 610.0 | USD | 20190220 |
| Unknown | China national standards | MT | 4220.0 | USD | 20190217 |
| Unknown | China national standards | MT | 560.0 | USD | 20190214 |
| Unknown | China national standards | MT | 4220.0 | USD | 20190213 |
| Unknown | China national standards | MT | 3870.0 | USD | 20190201 |