| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 447120.0 | USD | 20190401 |
| Unknown | China national standards | MT | 447080.0 | USD | 20190401 |
| Unknown | China national standards | MT | 441860.0 | USD | 20190320 |
| Unknown | China national standards | MT | 434980.0 | USD | 20190320 |
| Unknown | China national standards | MT | 65440.0 | USD | 20190319 |
| Unknown | China national standards | MT | 435070.0 | USD | 20190318 |
| Unknown | China national standards | MT | 65310.0 | USD | 20190311 |
| Unknown | China national standards | MT | 64260.0 | USD | 20190310 |
| Unknown | China national standards | MT | 64520.0 | USD | 20190301 |
| Unknown | China national standards | MT | 442810.0 | USD | 20190301 |