SI Group

SI Group is a global chemical company specializing in performance additives, process solutions, and chemical intermediates. Formerly known as Schenectady International, Inc., the company develops materials that enhance durability, stability, and processing across a range of applications.

Its portfolio includes antioxidants and stabilizers for plastics, elastomers, and fuels; lubricant additives; rubber additives; adhesive and tackifier resins; and intermediates for phenolic and epoxy systems. SI Group serves industries such as plastics compounding, rubber and tires, fuels and lubricants, adhesives and sealants, coatings, and oilfield chemicals. The company operates manufacturing and technical service facilities across the Americas, Europe, and Asia to support product development and application performance for customers worldwide.