| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 540.0 | USD | 20210323 |
| Unknown | China national standards | MT | 9620.0 | USD | 20210320 |
| Unknown | China national standards | MT | 540.0 | USD | 20210317 |
| Unknown | China national standards | MT | 9630.0 | USD | 20210316 |
| Unknown | China national standards | MT | USD | 20210315 | |
| Unknown | China national standards | MT | USD | 20210301 | |
| Unknown | China national standards | MT | USD | 20210221 | |
| Unknown | China national standards | MT | USD | 20210215 | |
| Unknown | China national standards | MT | USD | 20210212 | |
| Unknown | China national standards | MT | USD | 20210210 |