| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 670.0 | USD | 20190501 |
| Unknown | China national standards | MT | 730.0 | USD | 20190501 |
| Unknown | China national standards | MT | 780.0 | USD | 20190423 |
| Unknown | China national standards | MT | 620.0 | USD | 20190421 |
| Unknown | China national standards | MT | 620.0 | USD | 20190419 |
| Unknown | China national standards | MT | 5220.0 | USD | 20190419 |
| Unknown | China national standards | MT | 780.0 | USD | 20190418 |
| Unknown | China national standards | MT | 970.0 | USD | 20190417 |
| Unknown | China national standards | MT | 720.0 | USD | 20190410 |
| Unknown | China national standards | MT | 4140.0 | USD | 20190401 |