| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 4820.0 | USD | 20190101 |
| Unknown | China national standards | MT | 3720.0 | USD | 20190101 |
| Unknown | China national standards | MT | 3980.0 | USD | 20181223 |
| Unknown | China national standards | MT | 3980.0 | USD | 20181222 |
| Unknown | China national standards | MT | 20180.0 | USD | 20181222 |
| Unknown | China national standards | MT | 20180.0 | USD | 20181221 |
| Unknown | China national standards | MT | 2540.0 | USD | 20181220 |
| Unknown | China national standards | MT | 2540.0 | USD | 20181219 |
| Unknown | China national standards | MT | 2900.0 | USD | 20181218 |
| Unknown | China national standards | MT | 17640.0 | USD | 20181217 |