AmSty is a leading integrated producer of polystyrene and styrene monomer, with a broad footprint across the Americas. We offer innovative solutions and services to customers in various markets, impacting everyday lives. Our chemicals and resins are essential for creating products such as appliances, food packaging, home furnishings, medical supplies, insulation, tires, shoes, and even water treatment solutions.

At AmSty, sustainability is at the forefront of everything we do. From product design to raw material procurement, manufacturing, and logistics, we strive to make a positive impact. Our ongoing innovations enable us to reduce material usage, accelerate plastic recycling, and minimize energy consumption and air emissions.

Established as a joint venture in 2008, AmSty is now a 50/50 partnership between Trinseo LLC and Chevron Phillips Chemical Company LP. With headquarters in The Woodlands, Texas, we have operations at multiple sites across the Americas and employ over 500 dedicated professionals. Our commitment to sustainability and excellence sets us apart in the industry