| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 140.0 | USD | 20190222 |
| Unknown | China national standards | MT | 960.0 | USD | 20190217 |
| Unknown | China national standards | MT | 180.0 | USD | 20190217 |
| Unknown | China national standards | MT | 1210.0 | USD | 20190216 |
| Unknown | China national standards | MT | 1220.0 | USD | 20190210 |
| Unknown | China national standards | MT | 970.0 | USD | 20190201 |
| Unknown | China national standards | MT | 140.0 | USD | 20190201 |
| Unknown | China national standards | MT | 180.0 | USD | 20190201 |
| Unknown | China national standards | MT | 1050.0 | USD | 20190123 |
| Unknown | China national standards | MT | 150.0 | USD | 20190120 |