| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 483810.0 | USD | 20180201 |
| Unknown | China national standards | MT | 75200.0 | USD | 20180201 |
| Unknown | China national standards | MT | 64450.0 | USD | 20180120 |
| Unknown | China national standards | MT | 62810.0 | USD | 20180118 |
| Unknown | China national standards | MT | 424430.0 | USD | 20180116 |
| Unknown | China national standards | MT | 413870.0 | USD | 20180115 |
| Unknown | China national standards | MT | 419380.0 | USD | 20180111 |
| Unknown | China national standards | MT | 409000.0 | USD | 20180101 |
| Unknown | China national standards | MT | 63290.0 | USD | 20180101 |
| Unknown | China national standards | MT | 61910.0 | USD | 20180101 |