| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 110.0 | USD | 20190601 |
| Unknown | China national standards | MT | 120.0 | USD | 20190601 |
| Unknown | China national standards | MT | 110.0 | USD | 20190523 |
| Unknown | China national standards | MT | 780.0 | USD | 20190522 |
| Unknown | China national standards | MT | 110.0 | USD | 20190521 |
| Unknown | China national standards | MT | 120.0 | USD | 20190521 |
| Unknown | China national standards | MT | 770.0 | USD | 20190521 |
| Unknown | China national standards | MT | 770.0 | USD | 20190520 |
| Unknown | China national standards | MT | 760.0 | USD | 20190519 |
| Unknown | China national standards | MT | 760.0 | USD | 20190518 |