| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 5770.0 | USD | 20180823 |
| Unknown | China national standards | MT | 860.0 | USD | 20180821 |
| Unknown | China national standards | MT | 5910.0 | USD | 20180819 |
| Unknown | China national standards | MT | 5640.0 | USD | 20180818 |
| Unknown | China national standards | MT | 5660.0 | USD | 20180816 |
| Unknown | China national standards | MT | 850.0 | USD | 20180814 |
| Unknown | China national standards | MT | 860.0 | USD | 20180812 |
| Unknown | China national standards | MT | 880.0 | USD | 20180811 |
| Unknown | China national standards | MT | 880.0 | USD | 20180811 |
| Unknown | China national standards | MT | 890.0 | USD | 20180810 |