| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 300.0 | USD | 20180601 |
| Unknown | China national standards | MT | 2370.0 | USD | 20180523 |
| Unknown | China national standards | MT | 1760.0 | USD | 20180522 |
| Unknown | China national standards | MT | 320.0 | USD | 20180522 |
| Unknown | China national standards | MT | 340.0 | USD | 20180522 |
| Unknown | China national standards | MT | 1820.0 | USD | 20180521 |
| Unknown | China national standards | MT | 310.0 | USD | 20180521 |
| Unknown | China national standards | MT | 300.0 | USD | 20180520 |
| Unknown | China national standards | MT | 290.0 | USD | 20180519 |
| Unknown | China national standards | MT | 310.0 | USD | 20180519 |