| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 1510.0 | USD | 20210322 |
| Unknown | China national standards | MT | 240.0 | USD | 20210321 |
| Unknown | China national standards | MT | 1520.0 | USD | 20210320 |
| Unknown | China national standards | MT | 1770.0 | USD | 20210317 |
| Unknown | China national standards | MT | 270.0 | USD | 20210315 |
| Unknown | China national standards | MT | USD | 20210313 | |
| Unknown | China national standards | MT | USD | 20210312 | |
| Unknown | China national standards | MT | USD | 20210301 | |
| Unknown | China national standards | MT | USD | 20210301 | |
| Unknown | China national standards | MT | USD | 20210301 |