| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 22740.0 | USD | 20190516 |
| Unknown | China national standards | MT | 3390.0 | USD | 20190515 |
| Unknown | China national standards | MT | 23340.0 | USD | 20190515 |
| Unknown | China national standards | MT | 3520.0 | USD | 20190511 |
| Unknown | China national standards | MT | 3520.0 | USD | 20190510 |
| Unknown | China national standards | MT | 3540.0 | USD | 20190501 |
| Unknown | China national standards | MT | 3460.0 | USD | 20190501 |
| Unknown | China national standards | MT | 23740.0 | USD | 20190501 |
| Unknown | China national standards | MT | 3520.0 | USD | 20190423 |
| Unknown | China national standards | MT | 26290.0 | USD | 20190422 |