Malta Imports from Singapore of Ketone, Quinone, Their Halogenated, Sulfonated, Nitrated Derivatives was US$35 during 2012, according to the United Nations COMTRADE database on international trade. Malta Imports from Singapore of Ketone, Quinone, Their Halogenated, Sulfonated, Nitrated Derivatives - data, historical chart and statistics - was last updated on May of 2024.