| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 457720.0 | USD | 20180701 |
| Unknown | China national standards | MT | 70430.0 | USD | 20180701 |
| Unknown | China national standards | MT | 454870.0 | USD | 20180701 |
| Unknown | China national standards | MT | 461300.0 | USD | 20180701 |
| Unknown | China national standards | MT | 70900.0 | USD | 20180623 |
| Unknown | China national standards | MT | 72720.0 | USD | 20180620 |
| Unknown | China national standards | MT | 455420.0 | USD | 20180618 |
| Unknown | China national standards | MT | 456480.0 | USD | 20180613 |
| Unknown | China national standards | MT | 466950.0 | USD | 20180612 |
| Unknown | China national standards | MT | 467260.0 | USD | 20180601 |