# Cabot Sanmar to invest ₹220 crore in fumed silica expansion at Mettur

Cabot Sanmar, a joint venture between Cabot Corporation and The Sanmar Group, is investing ₹220 crore ($25 million) to double capacity of its fumed silica plant in Mettur, India. The expansion is expected to be commissioned in Q4 2027.

- Type: Expansion
- Announced: 2026-03-31
- Where: Mettur, near Salem, Tamil Nadu, India
- Value: $25.0M (2.20B INR)
- Starts operating: Q4 2027
- Status: announced
- Capacity: double the capacity (exact current capacity not stated)
- Products: CAB-O-SIL fumed silica
- Sectors: [Specialty Chemicals](https://endata.com/sectors/specialty-chemicals.md)

## Companies

- [Cabot Sanmar](https://endata.com/companies/91147.md)
- [Cabot Corporation](https://endata.com/companies/20624.md) (partner)
- [Sanmar Group](https://endata.com/companies/88301.md) (partner)

## Sources

- [thehindubusinessline.com](https://www.thehindubusinessline.com/news/sanmar-cabot-jv-to-invest-220-crore-to-expand-fumed-silica-manufacturing/article70811598.ece), 2026-04-01: "The expansion is in line with long-term capacity planning given the strong domestic demand we see for the product."
- [dtnext.in](https://www.dtnext.in/news/business/cabot-sanmar-jv-for-fumed-silica-expansion-in-mettur-sees-rs-220-cr-investment), 2026-04-01: "The JV with Cabot has expanded our capacity significantly."
- [business-standard.com](https://www.business-standard.com/companies/news/cabot-sanmar-to-boost-silica-output-with-rs-220-cr-mettur-plant-expansion-126040400299_1.html), 2026-04-04: "The brownfield expansion represents an investment of Rs 220 crore ($25 million) and is expected to be commissioned in the fourth quarter of calendar year 2027."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.