| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 640.0 | USD | 20210117 |
| Unknown | China national standards | MT | 500.0 | USD | 20210115 |
| Unknown | China national standards | MT | 40.0 | USD | 20210115 |
| Unknown | China national standards | MT | 720.0 | USD | 20210114 |
| Unknown | China national standards | MT | 80.0 | USD | 20210114 |
| Unknown | China national standards | MT | 270.0 | USD | 20210112 |
| Unknown | China national standards | MT | 250.0 | USD | 20210110 |
| Unknown | China national standards | MT | 260.0 | USD | 20210101 |
| Unknown | China national standards | MT | 110.0 | USD | 20210101 |
| Unknown | China national standards | MT | 130.0 | USD | 20210101 |