| Vendor | Spec | Unit | Price | Currency | Date |
| Unknown | China national standards | MT | 493200.0 | USD | 20180322 |
| Unknown | China national standards | MT | 486930.0 | USD | 20180318 |
| Unknown | China national standards | MT | 511270.0 | USD | 20180318 |
| Unknown | China national standards | MT | 80610.0 | USD | 20180316 |
| Unknown | China national standards | MT | 80860.0 | USD | 20180315 |
| Unknown | China national standards | MT | 77690.0 | USD | 20180313 |
| Unknown | China national standards | MT | 77550.0 | USD | 20180312 |
| Unknown | China national standards | MT | 486070.0 | USD | 20180310 |
| Unknown | China national standards | MT | 511170.0 | USD | 20180301 |
| Unknown | China national standards | MT | 76750.0 | USD | 20180301 |