| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 100.0 | USD | 20190213 |
| Unknown | China national standards | MT | 680.0 | USD | 20190212 |
| Unknown | China national standards | MT | 110.0 | USD | 20190211 |
| Unknown | China national standards | MT | 740.0 | USD | 20190210 |
| Unknown | China national standards | MT | 50.0 | USD | 20190210 |
| Unknown | China national standards | MT | 740.0 | USD | 20190201 |
| Unknown | China national standards | MT | 750.0 | USD | 20190201 |
| Unknown | China national standards | MT | 690.0 | USD | 20190201 |
| Unknown | China national standards | MT | 110.0 | USD | 20190201 |
| Unknown | China national standards | MT | 100.0 | USD | 20190201 |