| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 73300.0 | USD | 20180601 |
| Unknown | China national standards | MT | 467260.0 | USD | 20180601 |
| Unknown | China national standards | MT | 494230.0 | USD | 20180521 |
| Unknown | China national standards | MT | 78170.0 | USD | 20180517 |
| Unknown | China national standards | MT | 491680.0 | USD | 20180517 |
| Unknown | China national standards | MT | 79310.0 | USD | 20180514 |
| Unknown | China national standards | MT | 78580.0 | USD | 20180514 |
| Unknown | China national standards | MT | 496780.0 | USD | 20180513 |
| Unknown | China national standards | MT | 79250.0 | USD | 20180501 |
| Unknown | China national standards | MT | 493900.0 | USD | 20180501 |