SI Group Celebrates 75 Years of Manufacturing History at Rotterdam Junction Site

Employees and their families gathered on site to celebrate the occasion and give back to their community

Media Contact:

Joseph Grande
ph: + 1.413.684.2463
joe@jgrandecommunications.com

THE WOODLANDS, Texas — October 15, 2026 — SI Group, a leading global developer and manufacturer of performance additives, process solutions, and chemical intermediates, marked another major milestone this year, celebrating 75 years of manufacturing excellence at its Rotterdam Junction, New York facility. Employees and their families came together to celebrate the site’s rich history with an afternoon of family activities and remarks from company leaders, while also giving back to the community that has supported the facility and its people for three-quarters of a century.

Established in 1951, the Rotterdam Junction site has played an important role in supplying specialty chemical solutions to customers around the world for 75 years. Today, the facility manufactures alkylphenols and phenolic resins used in applications ranging from tires and adhesives to fuels, lubricants, and industrial products. The facility employs more than 100 people and continues to serve as a key manufacturing location within SI Group's global network.

“Celebrating 75 years of operations at Rotterdam Junction is a tremendous milestone,” said David Bradley, President and CEO of SI Group. “What is more impressive is the site’s legacy, with many long-tenured employees and multi-generational families continuing to support our business and the community through their work at the site.”

The anniversary celebration was held on site, where employees and their families gathered to recognize the generations of people who have contributed to Rotterdam Junction and its enduring connection to the local community. As part of the celebration, SI Group announced a $7,500 charitable donation to AMEN Place Soup Kitchen & Food Pantry, a local organization that provides food assistance to individuals and families facing food insecurity. Karl and Christine Andrzejczyk accepted the donation on behalf of the organization.

Throughout its history, SI Group’s Rotterdam Junction facility has continuously evolved to meet the changing needs of customers while maintaining a strong focus on safety, operational excellence, and corporate social responsibility. The site's workforce includes employees with decades of service, reflecting the deep expertise and commitment that have defined the facility since its founding.

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.