| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 50.0 | USD | 20200323 |
| Unknown | China national standards | MT | 370.0 | USD | 20200322 |
| Unknown | China national standards | MT | 990.0 | USD | 20200321 |
| Unknown | China national standards | MT | 50.0 | USD | 20200321 |
| Unknown | China national standards | MT | 310.0 | USD | 20200320 |
| Unknown | China national standards | MT | 70.0 | USD | 20200320 |
| Unknown | China national standards | MT | 490.0 | USD | 20200318 |
| Unknown | China national standards | MT | 380.0 | USD | 20200315 |
| Unknown | China national standards | MT | 50.0 | USD | 20200315 |
| Unknown | China national standards | MT | 50.0 | USD | 20200314 |