| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 140.0 | USD | 20180401 |
| Unknown | China national standards | MT | 260.0 | USD | 20180323 |
| Unknown | China national standards | MT | 1070.0 | USD | 20180323 |
| Unknown | China national standards | MT | 320.0 | USD | 20180322 |
| Unknown | China national standards | MT | 870.0 | USD | 20180322 |
| Unknown | China national standards | MT | 50.0 | USD | 20180320 |
| Unknown | China national standards | MT | 50.0 | USD | 20180319 |
| Unknown | China national standards | MT | 140.0 | USD | 20180318 |
| Unknown | China national standards | MT | 50.0 | USD | 20180317 |
| Unknown | China national standards | MT | 50.0 | USD | 20180314 |