Namibia Exports of clays, andalusite, kyanite, sillimanite, mullite, chamotte, dinas earths to Congo was US$78 during 2023, according to the United Nations COMTRADE database on international trade. Namibia Exports of clays, andalusite, kyanite, sillimanite, mullite, chamotte, dinas earths to Congo - data, historical chart and statistics - was last updated on May of 2024.