Congo Imports of clays, andalusite, kyanite, sillimanite, mullite, chamotte, dinas earths from Belgium was US$2 during 2022, according to the United Nations COMTRADE database on international trade. Congo Imports of clays, andalusite, kyanite, sillimanite, mullite, chamotte, dinas earths from Belgium - data, historical chart and statistics - was last updated on May of 2024.