| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 70.0 | USD | 20200811 |
| Unknown | China national standards | MT | 140.0 | USD | 20200801 |
| Unknown | China national standards | MT | 120.0 | USD | 20200721 |
| Unknown | China national standards | MT | 70.0 | USD | 20200721 |
| Unknown | China national standards | MT | 120.0 | USD | 20200718 |
| Unknown | China national standards | MT | 70.0 | USD | 20200715 |
| Unknown | China national standards | MT | 90.0 | USD | 20200701 |
| Unknown | China national standards | MT | 90.0 | USD | 20200701 |
| Unknown | China national standards | MT | 70.0 | USD | 20200620 |
| Unknown | China national standards | MT | 70.0 | USD | 20200601 |