| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 15800.0 | USD | 20210323 |
| Unknown | China national standards | MT | 17750.0 | USD | 20210322 |
| Unknown | China national standards | MT | 16160.0 | USD | 20210317 |
| Unknown | China national standards | MT | USD | 20210314 | |
| Unknown | China national standards | MT | USD | 20210313 | |
| Unknown | China national standards | MT | USD | 20210313 | |
| Unknown | China national standards | MT | USD | 20210312 | |
| Unknown | China national standards | MT | USD | 20210311 | |
| Unknown | China national standards | MT | USD | 20210310 | |
| Unknown | China national standards | MT | USD | 20210301 |