PHOTO: KONSTANTIN ILYANOK/ EAST NEWS UKRAINE ArcelorMittal Kryvyi Rih KSTL, blast furnace, Kryvorizhstal/ Located fully in Kryvyi Rih, Kryvorizhstal is the largest and most up-to-date steel company in the Kryvbas region (as well as in the whole Ukraine). It was built as an integrated mining and metallurgy plant