| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 1130.0 | USD | 20210316 |
| Unknown | China national standards | MT | 1130.0 | USD | 20210313 |
| Unknown | China national standards | MT | 7310.0 | USD | 20210301 |
| Unknown | China national standards | MT | 7310.0 | USD | 20210301 |
| Unknown | China national standards | MT | 1160.0 | USD | 20210122 |
| Unknown | China national standards | MT | 7410.0 | USD | 20210120 |
| Unknown | China national standards | MT | 8410.0 | USD | 20210120 |
| Unknown | China national standards | MT | 7580.0 | USD | 20210119 |
| Unknown | China national standards | MT | 1290.0 | USD | 20210116 |
| Unknown | China national standards | MT | 7420.0 | USD | 20210111 |