Ecovyst Enters Agreement to Acquire Calabrian Sulfur Dioxide & Sulfur Derivatives Business

In The News
May 5, 2026

Ropes & Gray advised Ecovyst Inc., a leading provider of virgin sulfuric acid and regenerated sulfuric acid products and services, in an agreement to acquire the Calabrian sulfur dioxide and related sulfur derivatives business from INEOS Enterprises for $190 million. The transaction was announced on May 1.

Calabrian is a leading producer of sulfur dioxide and related sulfur derivatives in North America, serving key end uses including mining, water treatment and specialty chemical production.

The Ropes & Gray team was led by mergers & acquisitions counsel David Dowling and mergers & acquisitions partner Tara Fisher and included tax partners Andrew Howard and David Saltzman, and private equity partner Arek Maczka.