| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 140.0 | USD | 20190212 |
| Unknown | China national standards | MT | 810.0 | USD | 20190211 |
| Unknown | China national standards | MT | 650.0 | USD | 20190201 |
| Unknown | China national standards | MT | 120.0 | USD | 20190201 |
| Unknown | China national standards | MT | 1490.0 | USD | 20190121 |
| Unknown | China national standards | MT | 150.0 | USD | 20190119 |
| Unknown | China national standards | MT | 690.0 | USD | 20190117 |
| Unknown | China national standards | MT | 150.0 | USD | 20190117 |
| Unknown | China national standards | MT | 100.0 | USD | 20190117 |
| Unknown | China national standards | MT | 150.0 | USD | 20190116 |