Canada Imports from Canada of Natural Barium Sulphate (Barytes), Natural Barium Carbonate (witherite) was US$123 during 2022, according to the United Nations COMTRADE database on international trade. Canada Imports from Canada of Natural Barium Sulphate (Barytes), Natural Barium Carbonate (witherite) - data, historical chart and statistics - was last updated on May of 2024.