| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 28240.0 | USD | 20190318 |
| Unknown | China national standards | MT | 26810.0 | USD | 20190317 |
| Unknown | China national standards | MT | 3990.0 | USD | 20190316 |
| Unknown | China national standards | MT | 3990.0 | USD | 20190315 |
| Unknown | China national standards | MT | 4000.0 | USD | 20190315 |
| Unknown | China national standards | MT | 3970.0 | USD | 20190312 |
| Unknown | China national standards | MT | 28190.0 | USD | 20190311 |
| Unknown | China national standards | MT | 4170.0 | USD | 20190310 |
| Unknown | China national standards | MT | 26960.0 | USD | 20190310 |
| Unknown | China national standards | MT | 26890.0 | USD | 20190301 |