Introduction

Creating Essential, Safe, Sustainable Materials

At AmSty, we don’t just ride the tides – we make them. While making waves can sometimes imply stirring the surface or creating ripples without an end goal, to us, it’s a deliberate act of progress. As we move through this year, the momentum we built over the history of the company is growing – from ripples into accelerated progress across the industry. For us, making waves reflects our commitment to delivering the high-quality, sustainable materials and reliable, innovative solutions our customers depend on every day – while maintaining our strong focus on safety, operational excellence and responsible growth.

As a leading U.S. producer of polystyrene resin and styrene monomer, AmSty supplies essential materials for products people rely on across a wide range of industries and everyday applications. With multiple manufacturing locations, strong logistics capabilities and personalized customer service, we remain focused on helping our customers succeed in a rapidly evolving world.

We invite you to read our latest sustainability report, which highlights how we continue to prioritize progress across our operations, our partnerships and the communities where we live and work.

While the challenges facing these industries continue to evolve, so does our commitment to continuous improvement, innovation, sustainability and long-term value creation.

Making waves is about building momentum: moving forward with intention and helping shape a stronger future for our industry and the world around us.

About AmSty

Americas Styrenics LLC (AmSty) is a leading integrated producer of polystyrene and styrene monomer, offering solutions and services to customers in markets throughout the Americas. Styrene monomer is a key ingredient for a wide variety of industrial and consumer products, and it is also the chemical building block for polystyrene, a versatile plastic used in a broad range of consumer-facing applications. It is our belief these essential products should be produced in the most sustainable way to serve our customers and protect our planet.

AmSty has been a pioneer at the forefront of developing circular recycling solutions. We are building momentum toward a more sustainable future and making important progress through partnerships. Sustainability is at the heart of everything we do, from the raw materials we source to our environmental stewardship, safety focus, corporate responsibility, and community involvement.

AmSty was formed in 2008 through a joint venture between Chevron Phillips Chemical (CPChem) and The Dow Chemical Company (Dow). Dow sold its ownership to Bain Capital in 2010 which came to be known as Trinseo. Today, AmSty is a 50/50 joint venture between Trinseo and CPChem.

Headquartered in The Woodlands, Texas, AmSty has approximately 500 employees and contractors. We manufacture styrene monomer at our St. James, Louisiana, location, and polystyrene at locations in:

Allyn’s Point, Connecticut
Cartagena, Colombia
Hanging Rock, Ohio
Joliet, Illinois
Marietta, Ohio
Torrance, California