Ukraine Exports of coke, semi-coke of coal, of lignite, of peat; retort carbon to Estonia was US$151.78 Thousand during 2016, according to the United Nations COMTRADE database on international trade. Ukraine Exports of coke, semi-coke of coal, of lignite, of peat; retort carbon to Estonia - data, historical chart and statistics - was last updated on May of 2024.