Estonia Imports of coke, semi-coke of coal, of lignite, of peat; retort carbon from Latvia was US$13.76 Thousand during 2018, according to the United Nations COMTRADE database on international trade. Estonia Imports of coke, semi-coke of coal, of lignite, of peat; retort carbon from Latvia - data, historical chart and statistics - was last updated on May of 2024.