| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 890.0 | USD | 20190301 |
| Unknown | China national standards | MT | 810.0 | USD | 20190301 |
| Unknown | China national standards | MT | 860.0 | USD | 20190223 |
| Unknown | China national standards | MT | 780.0 | USD | 20190220 |
| Unknown | China national standards | MT | 110.0 | USD | 20190219 |
| Unknown | China national standards | MT | 120.0 | USD | 20190218 |
| Unknown | China national standards | MT | 130.0 | USD | 20190218 |
| Unknown | China national standards | MT | 780.0 | USD | 20190217 |
| Unknown | China national standards | MT | 770.0 | USD | 20190217 |
| Unknown | China national standards | MT | 110.0 | USD | 20190217 |