| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 44600.0 | USD | 20190201 |
| Unknown | China national standards | MT | 6480.0 | USD | 20190201 |
| Unknown | China national standards | MT | 48980.0 | USD | 20190121 |
| Unknown | China national standards | MT | 7090.0 | USD | 20190120 |
| Unknown | China national standards | MT | 49100.0 | USD | 20190116 |
| Unknown | China national standards | MT | 7100.0 | USD | 20190114 |
| Unknown | China national standards | MT | 2100.0 | USD | 20181223 |
| Unknown | China national standards | MT | 168820.02 | USD | 20181222 |
| Unknown | China national standards | MT | 14490.0 | USD | 20181221 |
| Unknown | China national standards | MT | 14770.0 | USD | 20181220 |