| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 70.0 | USD | 20210219 |
| Unknown | China national standards | MT | 70.0 | USD | 20210218 |
| Unknown | China national standards | MT | 70.0 | USD | 20210215 |
| Unknown | China national standards | MT | 710.0 | USD | 20210215 |
| Unknown | China national standards | MT | 730.0 | USD | 20210214 |
| Unknown | China national standards | MT | 710.0 | USD | 20210213 |
| Unknown | China national standards | MT | 70.0 | USD | 20210210 |
| Unknown | China national standards | MT | 470.0 | USD | 20210210 |
| Unknown | China national standards | MT | 470.0 | USD | 20210201 |
| Unknown | China national standards | MT | 110.0 | USD | 20210201 |