| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 10770.0 | USD | 20190501 |
| Unknown | China national standards | MT | 1610.0 | USD | 20190501 |
| Unknown | China national standards | MT | 11160.0 | USD | 20190423 |
| Unknown | China national standards | MT | 11670.0 | USD | 20190423 |
| Unknown | China national standards | MT | 12090.0 | USD | 20190422 |
| Unknown | China national standards | MT | 1610.0 | USD | 20190421 |
| Unknown | China national standards | MT | 1580.0 | USD | 20190421 |
| Unknown | China national standards | MT | 11160.0 | USD | 20190421 |
| Unknown | China national standards | MT | 1640.0 | USD | 20190420 |
| Unknown | China national standards | MT | 10660.0 | USD | 20190420 |