Subsidiaries
- Net Access India Limited
- Southern Energy Development Corporation Limited
- Sterling Abrasives Limited
- CUMI International Limited
- CUMI (Australia) Pty Limited
- Volzhsky Abrasive Works
- CUMI AWUKO Abrasives GmbH
- Rhodius South America Ltda
- Rhodius Nederland B.V
- Rhodius France S.A.R.L.
- Rhodius Korea Inc.
- Silicon Carbide Products LLC
- CUMI USA Inc.,
Joint Ventures
- Murugappa Morgan Thermal Ceramics Ltd
- Ciria India Limited
Associate Companies
- Wendt (India) Limited
- Putrim Renewables Private Limited