| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 1210.0 | USD | 20190523 |
| Unknown | China national standards | MT | 7950.0 | USD | 20190519 |
| Unknown | China national standards | MT | 8170.0 | USD | 20190517 |
| Unknown | China national standards | MT | 1190.0 | USD | 20190515 |
| Unknown | China national standards | MT | 3320.0 | USD | 20190515 |
| Unknown | China national standards | MT | 500.0 | USD | 20190513 |
| Unknown | China national standards | MT | 500.0 | USD | 20190512 |
| Unknown | China national standards | MT | 1240.0 | USD | 20190501 |
| Unknown | China national standards | MT | 8320.0 | USD | 20190501 |
| Unknown | China national standards | MT | 8140.0 | USD | 20190501 |