Ukrainian mining and steel company Metinvest aims to make all its steel in direct-reduced iron-fed furnaces by 2050 as part of a $20-plus billion transition away from sinter and coke-based production that will slash greenhouse gas emissions by 90%, CEO Yyriy Ryzhenkov told S&P Global Platts. Metinvest — which accounted for 45% (9.5 million mt) of Ukraine’s crude steel output…