| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 2070.0 | USD | 20190523 |
| Unknown | China national standards | MT | 2100.0 | USD | 20190523 |
| Unknown | China national standards | MT | 2100.0 | USD | 20190523 |
| Unknown | China national standards | MT | 310.0 | USD | 20190521 |
| Unknown | China national standards | MT | 270.0 | USD | 20190521 |
| Unknown | China national standards | MT | 330.0 | USD | 20190519 |
| Unknown | China national standards | MT | 420.0 | USD | 20190518 |
| Unknown | China national standards | MT | 2080.0 | USD | 20190515 |
| Unknown | China national standards | MT | 340.0 | USD | 20190513 |
| Unknown | China national standards | MT | 1850.0 | USD | 20190513 |