Oman Imports of coke, semi-coke of coal, of lignite, of peat; retort carbon from Singapore was US$50.19 Thousand during 2020, according to the United Nations COMTRADE database on international trade. Oman Imports of coke, semi-coke of coal, of lignite, of peat; retort carbon from Singapore - data, historical chart and statistics - was last updated on May of 2024.