| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 150.0 | USD | 20190115 |
| Unknown | China national standards | MT | 1000.0 | USD | 20190112 |
| Unknown | China national standards | MT | 2820.0 | USD | 20190101 |
| Unknown | China national standards | MT | 300.0 | USD | 20190101 |
| Unknown | China national standards | MT | 410.0 | USD | 20190101 |
| Unknown | China national standards | MT | 410.0 | USD | 20190101 |
| Unknown | China national standards | MT | 40.0 | USD | 20190101 |
| Unknown | China national standards | MT | 140.0 | USD | 20190101 |
| Unknown | China national standards | MT | 300.0 | USD | 20181221 |
| Unknown | China national standards | MT | 40.0 | USD | 20181220 |