| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 980.0 | USD | 20190122 |
| Unknown | China national standards | MT | 780.0 | USD | 20190121 |
| Unknown | China national standards | MT | 780.0 | USD | 20190119 |
| Unknown | China national standards | MT | 80.0 | USD | 20190118 |
| Unknown | China national standards | MT | 140.0 | USD | 20190117 |
| Unknown | China national standards | MT | 580.0 | USD | 20190116 |
| Unknown | China national standards | MT | 1180.0 | USD | 20190113 |
| Unknown | China national standards | MT | 2960.0 | USD | 20190113 |
| Unknown | China national standards | MT | 110.0 | USD | 20190113 |
| Unknown | China national standards | MT | 230.0 | USD | 20190112 |