| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 434790.0 | USD | 20190120 |
| Unknown | China national standards | MT | 439610.0 | USD | 20190115 |
| Unknown | China national standards | MT | 477860.0 | USD | 20190114 |
| Unknown | China national standards | MT | 69390.0 | USD | 20190114 |
| Unknown | China national standards | MT | 470400.0 | USD | 20190101 |
| Unknown | China national standards | MT | 428670.0 | USD | 20190101 |
| Unknown | China national standards | MT | 62290.0 | USD | 20190101 |
| Unknown | China national standards | MT | 68300.0 | USD | 20190101 |
| Unknown | China national standards | MT | 62240.0 | USD | 20190101 |
| Unknown | China national standards | MT | 62290.0 | USD | 20190101 |