| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 750.0 | USD | 20190301 |
| Unknown | China national standards | MT | 710.0 | USD | 20190301 |
| Unknown | China national standards | MT | 4660.0 | USD | 20190221 |
| Unknown | China national standards | MT | 4900.0 | USD | 20190220 |
| Unknown | China national standards | MT | 690.0 | USD | 20190218 |
| Unknown | China national standards | MT | 7890.0 | USD | 20190216 |
| Unknown | China national standards | MT | 770.0 | USD | 20190216 |
| Unknown | China national standards | MT | 1180.0 | USD | 20190215 |
| Unknown | China national standards | MT | 720.0 | USD | 20190213 |
| Unknown | China national standards | MT | 4670.0 | USD | 20190201 |