| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 650.0 | USD | 20190117 |
| Unknown | China national standards | MT | 140.0 | USD | 20190115 |
| Unknown | China national standards | MT | 650.0 | USD | 20190115 |
| Unknown | China national standards | MT | 960.0 | USD | 20190114 |
| Unknown | China national standards | MT | 130.0 | USD | 20190113 |
| Unknown | China national standards | MT | 910.0 | USD | 20190112 |
| Unknown | China national standards | MT | 4480.0 | USD | 20190112 |
| Unknown | China national standards | MT | 130.0 | USD | 20190111 |
| Unknown | China national standards | MT | 910.0 | USD | 20190110 |
| Unknown | China national standards | MT | 130.0 | USD | 20190101 |