| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 8610.0 | USD | 20190522 |
| Unknown | China national standards | MT | 6810.0 | USD | 20190522 |
| Unknown | China national standards | MT | 6090.0 | USD | 20190521 |
| Unknown | China national standards | MT | 910.0 | USD | 20190520 |
| Unknown | China national standards | MT | 1200.0 | USD | 20190519 |
| Unknown | China national standards | MT | 8620.0 | USD | 20190517 |
| Unknown | China national standards | MT | 1100.0 | USD | 20190516 |
| Unknown | China national standards | MT | 8050.0 | USD | 20190516 |
| Unknown | China national standards | MT | 1140.0 | USD | 20190514 |
| Unknown | China national standards | MT | 6910.0 | USD | 20190513 |