| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 7230.0 | USD | 20210323 |
| Unknown | China national standards | MT | 35290.0 | USD | 20210318 |
| Unknown | China national standards | MT | 46540.0 | USD | 20210316 |
| Unknown | China national standards | MT | USD | 20210301 | |
| Unknown | China national standards | MT | USD | 20210301 | |
| Unknown | China national standards | MT | USD | 20210222 | |
| Unknown | China national standards | MT | USD | 20210220 | |
| Unknown | China national standards | MT | USD | 20210219 | |
| Unknown | China national standards | MT | USD | 20210219 | |
| Unknown | China national standards | MT | USD | 20210214 |