Colombia Exports of coke, semi-coke of coal, of lignite, of peat; retort carbon to Uruguay was US$14.7 Thousand during 2011, according to the United Nations COMTRADE database on international trade. Colombia Exports of coke, semi-coke of coal, of lignite, of peat; retort carbon to Uruguay - data, historical chart and statistics - was last updated on June of 2024.