| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 810.0 | USD | 20190123 |
| Unknown | China national standards | MT | 4030.0 | USD | 20190119 |
| Unknown | China national standards | MT | 590.0 | USD | 20190117 |
| Unknown | China national standards | MT | 21170.0 | USD | 20190116 |
| Unknown | China national standards | MT | 580.0 | USD | 20190113 |
| Unknown | China national standards | MT | 120.0 | USD | 20190112 |
| Unknown | China national standards | MT | 3970.0 | USD | 20190101 |
| Unknown | China national standards | MT | 800.0 | USD | 20190101 |
| Unknown | China national standards | MT | 143630.0 | USD | 20190101 |
| Unknown | China national standards | MT | 20860.0 | USD | 20190101 |