Introduction

CEO Letter to Stakeholders

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 2025, the momentum we built over the history of the company is growing– from ripples into accelerated progress across the industry.

Sustainability doesn’t need small steps; it requires bold moves. Like the ocean reshaping the shoreline, innovation is inherently disruptive – and that’s what this moment demands. We’re not here to maintain the status quo, we’re here to challenge it.

This year’s report – Making Waves – reflects that commitment. It captures how we’re advancing sustainability across our operations, our communities, and through strategic partnerships. Safety remains our anchor. Our “we work safely or not at all” mindset continues demonstrating first quartile personal safety performance results; multiple facilities have achieved seven years without a recordable injury, and the Marietta, Ohio plant leads the way with nine years.

On the environmental front, a hazardous waste reduction initiative – first reported in our 2023 report at our Hanging Rock, Ohio polystyrene plant – has now been scaled to our Joliet, Illinois and Torrance, California polystyrene plants, resulting in a 20% hazardous waste reduction in two and a half years.

We’re strengthening our operational core, too. At our St. James, Louisiana styrene facility, a multi-year reliability initiative is underway to strengthen our capability and competitiveness for the future. And investments in our Marietta, Ohio plant to upgrade control systems to state-of-the-art digital technology will enable better reliability and efficiency for years to come.

In the circular economy, AmSty is charting new waters. In 2024, we completed our first sale of PolyRenew® styrene, sourced from sustainable feedstocks, and delivered to customers in the automotive sector. This milestone builds on the strong foundation of our PolyRenew® offerings. And in January 2025, in affiliation with the Plastics Industry Association (PLASTICS) and other founding members, we proudly launched the Polystyrene Recycling Alliance (PSRA), a North American coalition of monomer, resin, converting, brand, and recycling stakeholders committed to improving the circularity of polystyrene products across the value chain.

This journey toward a more sustainable future hasn’t always been smooth sailing. It’s dynamic, challenging and, at times, uncomfortable. But our team has shown unwavering resolve. Through shifting currents and headwinds, they’ve navigated with purpose, keeping us on course.

The waves we’re making today are about more than disruption – they’re about direction. Toward calmer, more resilient shores tomorrow. Toward impact that lasts. For now, we’ll continue Making Waves, the AmSty way. Turning last year’s ripples of momentum into this year’s waves of progress that allow us to continue producing essential materials that make lives better.