Vietnam Exports of coke, semi-coke of coal, of lignite, of peat; retort carbon to Pakistan was US$492.5 Thousand during 2012, according to the United Nations COMTRADE database on international trade. Vietnam Exports of coke, semi-coke of coal, of lignite, of peat; retort carbon to Pakistan - data, historical chart and statistics - was last updated on May of 2024.