| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 1800.0 | USD | 20180622 |
| Unknown | China national standards | MT | 2030.0 | USD | 20180621 |
| Unknown | China national standards | MT | 1810.0 | USD | 20180618 |
| Unknown | China national standards | MT | 280.0 | USD | 20180616 |
| Unknown | China national standards | MT | 2050.0 | USD | 20180615 |
| Unknown | China national standards | MT | 320.0 | USD | 20180613 |
| Unknown | China national standards | MT | 320.0 | USD | 20180611 |
| Unknown | China national standards | MT | 320.0 | USD | 20180601 |
| Unknown | China national standards | MT | 320.0 | USD | 20180601 |
| Unknown | China national standards | MT | 280.0 | USD | 20180601 |