IISS - North Korea’s ICBMs use RD-250 engines produced by Ukraine’s KB Yuzhnoye Monday, 14 August 2017 Army, Asian, News, War In his report for International Institute for Strategic Studies, Michael Elleman concludes that North Korea probably acquired RD-250 engines from Ukraine’s KB Yuzhnoye to power its Hwasong-12, -14 ballistic missiles. Tweet Subscribe to receive free email updates: