SI Group

At SI Group, we create smart chemistry that solves global challenges and makes great things possible. We create smart chemistry that solves global challenges and makes great things possible.

SI Group is a performance additives and intermediates business. We offer a broad array of products that feed into diverse applications including pharmaceuticals; plastics; oil and gas; and tires, among many others. We create solutions that provide formulators and manufacturers with the ability to increase efficacy, efficiency, productivity, and purity in countless industrial and consumer goods.