Customers, employees, and community leaders joined together to celebrate a century of innovation and partnership
Media Contact:
Joseph Grande
ph: + 1.413.684.2463
joe@jgrandecommunications.com
THE WOODLANDS, Texas — June 22, 2026 — SI Group, a leading global developer and manufacturer of
performance additives, process solutions, and chemical intermediates, marked a major milestone on May 28, 2026, celebrating 100 years of manufacturing at its Pratteln, Switzerland facility. The centennial celebration brought together customers, employees, and community representatives to recognize the site's enduring contribution to Swiss manufacturing and its continued role in serving global markets.
Since opening in 1926, the Pratteln facility has continuously evolved to meet changing industry needs, growing from its origins as a tar processing operation into a key production site for specialty alkylphenols and alkyl-cresols, critical intermediates used in high-performance antioxidant applications. Since its acquisition by SI Group in 1994, the facility has benefited from ongoing investments that support safe, reliable, and sustainable operations while strengthening the company's leadership in specialty chemicals.
"Reaching 100 years of operation is an extraordinary achievement and a reflection of the generations of employees whose dedication, expertise, and commitment have shaped Pratteln's success," said David Bradley, President and CEO of SI Group. "This milestone honors our past while reinforcing our commitment to investing in the future of the site, our customers, and the community."
As part of the celebration, guests toured the manufacturing facility and attended a reception highlighting the site's rich history and longstanding partnerships. The event concluded with an employee celebration recognizing the team’s contributions that continue to drive the facility's success.
The Pratteln centennial reflects not only the history of a single manufacturing site, but also SI Group’s commitment to innovation, operational excellence, and long-term customer partnerships around the world.
About SI Group
SI Group is a global leader in performance additives, process solutions, and chemical intermediates. SI Group’s chemistries are essential solutions that enhance the quality and performance of industrial and consumer goods in the plastics, rubber and adhesives, fuels, lubricants, coatings, and oilfield industries. Headquartered in The Woodlands, Texas, SI Group operates 18 manufacturing facilities across three continents and serves customers in more than 80 countries, supported by approximately 1,500 employees worldwide. Driven by a passion for safety, chemistry, sustainability, and delivering extraordinary results, SI Group innovates to create long-term value for a better future. Learn more at www.siigroup.com.