
ISCC PLUS Certified PolyRenew® Styrene: Pioneering Sustainable Product Solutions
AmSty offers ISCC PLUS certified PolyRenew® Styrene, made possible with materials sourced from innovative advanced recycling, bio-circular and other sources.
We recognize our customers are increasingly setting ambitious sustainability goals and AmSty is proud to play an important role in helping our customers achieve their success.
Learn more from John Medico
AmSty Vice President – Feedstocks, Styrene & Supply Chain
ISCC PLUS and a Mass Balance Approach
Using an ISCC PLUS-verified mass balance approach, the sustainable characteristics of feedstocks can be assigned to specific shipments to AmSty customers using a credit-based system. For example, an ISCC PLUS-certified company that purchases AmSty’s PolyRenew® styrene monomer to produce rubber destined for tires can represent that the tires are made with a percentage of recycled styrene on a mass balance basis that is third-party validated.
It’s one more way AmSty is empowering our customers and converters and helping drive meaningful progress toward a circular economy.
AmSty was the first U.S. company to partner with ISCC (International Sustainability and Carbon Certification) to apply the organization’s third-party certification system to recycled plastics in the U.S. Considered the gold standard for sustainable chemicals and plastics accreditation, ISCC PLUS is an internationally recognized certification process for circular and sustainable content that audits the supply chain from end to end.
Mass Balance Verification
- Documents inputs and outputs of manufacturing
- Allows mixing of recycled and virgin material
- Supports manufacturing efficiency
- Broadly accepted across multiple industries

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AmSty’s Styrene Team Leads in Driving the Circular Economy Forward
PolyRenew® Styrene is AmSty's latest approach in sustainable product offerings. The product is made using recycled or sustainable raw materials and produced through an ISCC PLUS-verified mass balance approach. This approach guarantees that the feedstocks used are sustainable and verifiable through a third-party certification system.
JC Gonzalez, Senior Business Manager for Styrene at AmSty, is at the helm during a milestone moment for styrene – an essential material found in tires, insulation, food packaging, medical supplies and more.

AmSty’s PolyRenew® Styrene Accelerates Circular Economy
"We're proud to be a pioneer in providing sustainable product solutions and are excited to see momentum building with customers for PolyRenew® in both styrene and polystyrene markets," said Randy Pogue, AmSty President and CEO.

Sustainability is Business as Usual: A Commitment to Doing the Right Thing
Sustainability is business as usual at AmSty, according to John Medico, Vice President of Feedstocks, Styrene and Supply Chain. AmSty is a leading producer of styrene monomer and polystyrene plastic.
"It's a further extension of the values I've seen at AmSty and in the plastics industry for a long time," he said. "It's an evolution of continuous improvement, environmental stewardship, doing the right thing for communities. All have been valued in the chemical and plastics industry for years."
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