About

About Hallstar Company HALLSTAR is a leading global specialty chemical company headquartered in Chicago, Illinois with research and development facilities around the world. We work collaboratively with our customers to deliver innovative, customized chemistry solutions that enhance next generation products. Our decades of expertise in manufacturing ester plasticizers, modifying polymers and magnesia additives is unique in the industry. This expertise, coupled with our elastomer application knowledge, helps us continually invent and formulate new esters for demanding situations. Working together, we can explore new innovations and possibilities for success today, tomorrow and years to come. Let's Work Wonders.