Quaternary Ammonium Compounds (BAC/DDAC)

Created in October 2021 when Lonza Group sold its Specialty Ingredients division to private equity firms Bain Capital and Cinven for CHF 4.2 billion. Arxada is the world's largest biocide and quat (BAC/DDAC/ADBAC) manufacturer, with 24 production sites globally. Key US facility: Williamsport, Pennsylvania (3500 Trenton Avenue) — the primary ADBAC/DDAC production site in the US. Arxada absorbed Arch Chemicals' biocide business when Lonza acquired Arch in 2011 for $1.4 billion. Product lines: Lonzagard BKC, ADBAC, DDAC. A member of both the ADBAC Issues Steering Committee and the DDAC Issues Steering Committee at EPA.

Lonza Group AG (Visp, Switzerland; SIX: LONN; ~CHF 6.7B revenue) is the world's largest pharmaceutical and biotech CDMO (Contract Development and Manufacturing Organization). Primary business is biologic drug manufacturing (mammalian cell culture, microbial fermentation) for pharma clients. Manufactured Moderna COVID-19 mRNA. Sold Specialty Ingredients (biocides: benzalkonium chloride, quats) to Arxada in 2021. Capsules and health ingredients division (HPMC and gelatin capsules) is the world's largest hard capsule manufacturer.

Stepan Company (Northfield IL; NYSE: SCL; ~$2.3B revenue) is the largest US-based surfactant manufacturer. Stepan's Surfactants segment (approximately 65% of revenue) produces SLES and a broad range of anionic, nonionic, and amphoteric surfactants for personal care, detergent, agricultural, and industrial markets. Key US plants: Maywood NJ (fatty acid sulfonation), Elwood IL, and Millsdale IL (largest plant — Joliet IL area). International plants in Voreppe France, Manno Switzerland, Nanjing China, Pasir Gudang Malaysia, and Ecatepec Mexico. Stepan holds exclusive rights to produce certain specialty low-1,4-dioxane SLES grades — a competitive advantage as New York and other states tighten dioxane limits.

US specialty chemical company (Cincinnati OH, 2744 East Kemper Road); one of the three US domestic ADBAC/DDAC producers. Acquired Mason Chemical Company (Arlington Heights, IL) in January 2013, making it the third US domestic quat producer of record alongside Arxada and Stepan. Mason Chemical had been an original member of the ADBAC Issues Steering Committee at EPA, with registered EPA biocide product lines that Pilot inherited. Pilot produces the Nobac® BAC/ADBAC line and Mason® CS line (CSEBC-50, CSEBC-80). Additional manufacturing in Texas, New Jersey, and Mexico.

Wholly-owned subsidiary of Novo Nordisk A/S (insulin and GLP-1 drug maker); has produced pharmaceutical-grade benzalkonium chloride (BKC) under the FeF Chemicals brand for over 70 years. The global leader in pharmaceutical-grade BAC meeting Ph.Eur., USP/NF, and JP pharmacopoeial standards. Supplies the pharmaceutical and ophthalmic industries, where BAC is the preservative in approximately 70% of all prescription and OTC eye drops globally. Novo Nordisk Pharmatech is the clearest example of a pharmaceutical-industry giant that also makes the preservative in your Flonase nasal spray.