| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 250.0 | USD | 20190119 |
| Unknown | China national standards | MT | 400.0 | USD | 20190117 |
| Unknown | China national standards | MT | 9610.0 | USD | 20190116 |
| Unknown | China national standards | MT | 2120.0 | USD | 20190116 |
| Unknown | China national standards | MT | 1760.0 | USD | 20190115 |
| Unknown | China national standards | MT | 400.0 | USD | 20190113 |
| Unknown | China national standards | MT | 310.0 | USD | 20190111 |
| Unknown | China national standards | MT | 1380.0 | USD | 20190101 |
| Unknown | China national standards | MT | 300.0 | USD | 20190101 |
| Unknown | China national standards | MT | 290.0 | USD | 20190101 |