Slovakia Imports from Poland of Coke, Semi-coke of Coal, of Lignite, of Peat; Retort Carbon was US$21.46 Million during 2023, according to the United Nations COMTRADE database on international trade. Slovakia Imports from Poland of Coke, Semi-coke of Coal, of Lignite, of Peat; Retort Carbon - data, historical chart and statistics - was last updated on May of 2024.