Rwanda Exports of clays, andalusite, kyanite, sillimanite, mullite, chamotte, dinas earths to Congo was US$160 during 2022, according to the United Nations COMTRADE database on international trade. Rwanda Exports of clays, andalusite, kyanite, sillimanite, mullite, chamotte, dinas earths to Congo - data, historical chart and statistics - was last updated on May of 2024.