| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 370.0 | USD | 20190501 |
| Unknown | China national standards | MT | 620.0 | USD | 20190501 |
| Unknown | China national standards | MT | 240.0 | USD | 20190423 |
| Unknown | China national standards | MT | 770.0 | USD | 20190422 |
| Unknown | China national standards | MT | 680.0 | USD | 20190422 |
| Unknown | China national standards | MT | 770.0 | USD | 20190421 |
| Unknown | China national standards | MT | 1600.0 | USD | 20190421 |
| Unknown | China national standards | MT | 110.0 | USD | 20190421 |
| Unknown | China national standards | MT | 110.0 | USD | 20190420 |
| Unknown | China national standards | MT | 100.0 | USD | 20190420 |