| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 260.0 | USD | 20170121 |
| Unknown | China national standards | MT | 260.0 | USD | 20170120 |
| Unknown | China national standards | MT | 1790.0 | USD | 20170110 |
| Unknown | China national standards | MT | 1790.0 | USD | 20170101 |
| Unknown | China national standards | MT | 1790.0 | USD | 20170101 |
| Unknown | China national standards | MT | 260.0 | USD | 20170101 |