| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 680.0 | USD | 20190801 |
| Unknown | China national standards | MT | 1130.0 | USD | 20190801 |
| Unknown | China national standards | MT | 160.0 | USD | 20190801 |
| Unknown | China national standards | MT | 750.0 | USD | 20190723 |
| Unknown | China national standards | MT | 810.0 | USD | 20190723 |
| Unknown | China national standards | MT | 120.0 | USD | 20190722 |
| Unknown | China national standards | MT | 110.0 | USD | 20190721 |
| Unknown | China national standards | MT | 810.0 | USD | 20190720 |
| Unknown | China national standards | MT | 750.0 | USD | 20190720 |
| Unknown | China national standards | MT | 140.0 | USD | 20190719 |