Iron ore concentrate production rose 10.4% yoy at one of Metinvest’s largest iron mines, Central Iron Ore Enrichment Works, or CGOK, reports SteelOrbis news site. For the first four months of this year, production hit 1.7 million tons at the mine, located in Kryvyi Rih. #IronOreProduction2021 #IronOreProductionUkraine #MetinvestIronOreMines