| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 120.0 | USD | 20190518 |
| Unknown | China national standards | MT | 760.0 | USD | 20190518 |
| Unknown | China national standards | MT | 110.0 | USD | 20190515 |
| Unknown | China national standards | MT | 780.0 | USD | 20190514 |
| Unknown | China national standards | MT | 120.0 | USD | 20190513 |
| Unknown | China national standards | MT | 120.0 | USD | 20190512 |
| Unknown | China national standards | MT | 790.0 | USD | 20190512 |
| Unknown | China national standards | MT | 790.0 | USD | 20190511 |
| Unknown | China national standards | MT | 860.0 | USD | 20190501 |
| Unknown | China national standards | MT | 790.0 | USD | 20190501 |