| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 1210.0 | USD | 20180522 |
| Unknown | China national standards | MT | 2300.0 | USD | 20180521 |
| Unknown | China national standards | MT | 2300.0 | USD | 20180519 |
| Unknown | China national standards | MT | 750.0 | USD | 20180517 |
| Unknown | China national standards | MT | 4700.0 | USD | 20180511 |
| Unknown | China national standards | MT | 740.0 | USD | 20180510 |
| Unknown | China national standards | MT | 190.0 | USD | 20180501 |
| Unknown | China national standards | MT | 1220.0 | USD | 20180501 |
| Unknown | China national standards | MT | 14530.0 | USD | 20180501 |
| Unknown | China national standards | MT | 4710.0 | USD | 20180501 |