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INEOS Calabrian Corporation, commonly known as INEOS Calabrian or Calabrian, is a leading North American producer of ultra-pure sulfur dioxide (SO₂) and its derivatives, including sodium bisulfite (SBS), sodium metabisulfite (SMBS), sodium thiosulfate (STS), and sodium sulfite.
The company employs a proprietary SO₂Clean® process, reacting sulfur with pure oxygen for efficient, low-emission production, unlike traditional sulfur burning methods. It operates integrated manufacturing facilities in Port Neches, Texas, and Timmins, Ontario, Canada, serving markets across North and South America via rail and truck.
Products support key applications in mining (e.g., cyanide destruction in gold leaching), water and wastewater treatment, oilfield operations, pulp and paper processing, food preservation, personal care, and specialty chemicals. Acquired by INEOS Enterprises in 2016, the business is slated for sale to Ecovyst by June 2026.
Also known as Calabrian Corporation and Ineos Calabrian Corp.
Adds sulfur dioxide and related derivatives capabilities; broadens end-use exposure into mining, water treatment, food processing and pharmaceuticals; company cites expected margins and synergies.
Ultra‑pure sulphur dioxide and derivatives unit with plants in Texas and Ontario sold for $190 million; transaction was first announced in May 2026.
Sale covers ultra-pure sulphur dioxide and derivatives business with plants in Texas and Ontario; deal valued at $190M; expected to close by end-June 2026; operations unchanged until completion.
