| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 3790.0 | USD | 20190501 |
| Unknown | China national standards | MT | 590.0 | USD | 20190501 |
| Unknown | China national standards | MT | 4240.0 | USD | 20190501 |
| Unknown | China national standards | MT | 4190.0 | USD | 20190501 |
| Unknown | China national standards | MT | 470.0 | USD | 20190423 |
| Unknown | China national standards | MT | 39940.0 | USD | 20190419 |
| Unknown | China national standards | MT | 7670.0 | USD | 20190418 |
| Unknown | China national standards | MT | 40020.0 | USD | 20190418 |
| Unknown | China national standards | MT | 4380.0 | USD | 20190417 |
| Unknown | China national standards | MT | 4300.0 | USD | 20190412 |