Carborundum Universal Ltd (CUMI) is an Indian company which manufactures and develops abrasives, ceramics, refractories, aluminium oxide grains, machine tools, polymers, adhesives and electro minerals in India.

The company has subsidiaries in India, Russia, South Africa, Australia, China, Thailand and Canada.

With the intention of producing technical ceramics for high temperature insulation products CUMI has made joint venture with Morgan Crucible Plc.

As a part of expanding their presence, in 2005 the company started CUMI Middle East FZE in Ras Al Khaimah.

In order to strengthen their global presence CUMI bought Abrasive Enterprises Inc., Canada, for $2.24 Million by 2006.