| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 1650.0 | USD | 20190520 |
| Unknown | China national standards | MT | 1640.0 | USD | 20190520 |
| Unknown | China national standards | MT | 240.0 | USD | 20190517 |
| Unknown | China national standards | MT | 250.0 | USD | 20190517 |
| Unknown | China national standards | MT | 230.0 | USD | 20190516 |
| Unknown | China national standards | MT | 1830.0 | USD | 20190515 |
| Unknown | China national standards | MT | 280.0 | USD | 20190513 |
| Unknown | China national standards | MT | 250.0 | USD | 20190513 |
| Unknown | China national standards | MT | 250.0 | USD | 20190512 |
| Unknown | China national standards | MT | 260.0 | USD | 20190511 |