Poland Exports of clays, andalusite, kyanite, sillimanite, mullite, chamotte, dinas earths to Angola was US$395 during 2017, according to the United Nations COMTRADE database on international trade. Poland Exports of clays, andalusite, kyanite, sillimanite, mullite, chamotte, dinas earths to Angola - data, historical chart and statistics - was last updated on May of 2024.