New Zealand Exports of coke, semi-coke of coal, of lignite, of peat; retort carbon to Hong Kong was US$539 during 2017, according to the United Nations COMTRADE database on international trade. New Zealand Exports of coke, semi-coke of coal, of lignite, of peat; retort carbon to Hong Kong - data, historical chart and statistics - was last updated on May of 2024.