CARBORUNIV Carborundum Universal Ltd Business Restructuring Announcement 2023 - Management Changes Carborundum Universal Ltd.s wholly-owned subsidiary, CUMI Abrasives & Ceramics Co. Ltd., has decided to wind down operations in China due to uncertain business viability..Find Corporate Announcements for Press Releases, AGM, Insider Trading & SAST, Results and Corporate Action for Carborundum Universal Ltd