Canada Exports of clays, andalusite, kyanite, sillimanite, mullite, chamotte, dinas earths to Portugal was US$0 during 2021, according to the United Nations COMTRADE database on international trade. Canada Exports of clays, andalusite, kyanite, sillimanite, mullite, chamotte, dinas earths to Portugal - data, historical chart and statistics - was last updated on May of 2024.