Cabot Sanmar announces Rs 220 crore expansion of manufacturing capacity for fumed silica

Cabot Sanmar announced the expansion of their fumed silica manufacturing capacity with an investment of Rs 220 crore ($25 million) to meet growing customer demand in India.

Cabot Sanmar is a joint venture (JV) between US-based Cabot Corporation and the Chennai-based Sanmar Group. The brownfield expansion is expected to be commissioned in the fourth quarter of calendar year 2027.

“This expansion reflects our shared commitment to collaboration, innovation, and delivering high-quality fumed silica to support India’s growing demand,” Sean Keohane, President and CEO, Cabot Corporation said in a statement on Wednesday.


Cabot Sanmar’s fumed silica products are used across a diverse range of applications including pharmaceuticals, food, paints and coatings, adhesives and sealants, personal care, crop protection, among others.

“Cabot Sanmar has been a reliable supply partner for diverse industries in India, and a contributor to India’s efforts to improve self-reliance. With this investment, Cabot Sanmar will expand the domestic availability of a critical ingredient that goes into the making of products we use every day,” Dr. Krishna Kumar Rangachari, Director, Cabot Sanmar Limited said.

Vijay Sankar, chairman of the Sanmar Group emphasised the long standing ties between the two companies. "This has been a journey of trust and consistent value creation. Through operational, technology and commercial excellence, the JV has sustained its leadership position in the market for fumed silica in India. This milestone year marks 30 years of this partnership," he said.

Keohane and Sankar unveiled the foundation stone of the new unit at a function held in Mettur in Salem district.