Grindwell Norton (GNO), a company listed on the Bombay and National Stock Exchanges, pioneered the manufacture of grinding wheels in India in 1941. Today, GNO’s businesses include: Abrasives, Silicon Carbide, High Performance Refractories, Performance Plastics and ADFORS. The Saint-Gobain Delegation (Country Head) office, and INDEC (the captive India IT Development Centre for the Saint-Gobain Group globally) are also part of GNO. GNO’s subsidiary, Saint-Gobain Ceramic Materials Bhutan Pvt. Ltd., manufactures Silicon Carbide. GNO is part of the Saint-Gobain Group. The Group currently holds 51.66% of the equity capital of GNO.