| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 780.0 | USD | 20190701 |
| Unknown | China national standards | MT | 810.0 | USD | 20190701 |
| Unknown | China national standards | MT | 120.0 | USD | 20190621 |
| Unknown | China national standards | MT | 770.0 | USD | 20190621 |
| Unknown | China national standards | MT | 130.0 | USD | 20190620 |
| Unknown | China national standards | MT | 110.0 | USD | 20190618 |
| Unknown | China national standards | MT | 880.0 | USD | 20190616 |
| Unknown | China national standards | MT | 130.0 | USD | 20190613 |
| Unknown | China national standards | MT | 860.0 | USD | 20190611 |
| Unknown | China national standards | MT | 770.0 | USD | 20190611 |