| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 19370.0 | USD | 20190710 |
| Unknown | China national standards | MT | 2820.0 | USD | 20190701 |
| Unknown | China national standards | MT | 19410.0 | USD | 20190701 |
| Unknown | China national standards | MT | 19410.0 | USD | 20190701 |
| Unknown | China national standards | MT | 21440.0 | USD | 20190622 |
| Unknown | China national standards | MT | 3110.0 | USD | 20190620 |
| Unknown | China national standards | MT | 2820.0 | USD | 20190619 |
| Unknown | China national standards | MT | 3100.0 | USD | 20190619 |
| Unknown | China national standards | MT | 19380.0 | USD | 20190618 |
| Unknown | China national standards | MT | 21290.0 | USD | 20190616 |