Kazakhstan Exports of coke, semi-coke of coal, of lignite, of peat; retort carbon to Latvia was US$3.44 Thousand during 2010, according to the United Nations COMTRADE database on international trade. Kazakhstan Exports of coke, semi-coke of coal, of lignite, of peat; retort carbon to Latvia - data, historical chart and statistics - was last updated on June of 2024.