| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 3870.0 | USD | 20190201 |
| Unknown | China national standards | MT | 620.0 | USD | 20190201 |
| Unknown | China national standards | MT | 7320.0 | USD | 20190123 |
| Unknown | China national standards | MT | 1060.0 | USD | 20190122 |
| Unknown | China national standards | MT | 3970.0 | USD | 20190121 |
| Unknown | China national standards | MT | 620.0 | USD | 20190121 |
| Unknown | China national standards | MT | 670.0 | USD | 20190118 |
| Unknown | China national standards | MT | 7360.0 | USD | 20190116 |
| Unknown | China national standards | MT | 670.0 | USD | 20190114 |
| Unknown | China national standards | MT | 4240.0 | USD | 20190101 |