| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 21830.0 | USD | 20190521 |
| Unknown | China national standards | MT | 25090.0 | USD | 20190520 |
| Unknown | China national standards | MT | 3260.0 | USD | 20190518 |
| Unknown | China national standards | MT | 25140.0 | USD | 20190518 |
| Unknown | China national standards | MT | 3750.0 | USD | 20190517 |
| Unknown | China national standards | MT | 4230.0 | USD | 20190515 |
| Unknown | China national standards | MT | 1650.0 | USD | 20190514 |
| Unknown | China national standards | MT | 1370.0 | USD | 20190510 |
| Unknown | China national standards | MT | 1390.0 | USD | 20190501 |
| Unknown | China national standards | MT | 1680.0 | USD | 20190501 |