PolyOne Corporation, with 2017 revenues of $3.2 billion, is a premier provider of specialized polymer materials, services and solutions. Avient Announces Second Quarter 2025 Results... Avient Announces Quarterly Dividend...

We innovate materials solutions that help our customers reduce material usage, enable recyclability, and improve aesthetics and physical performance. As an innovator of materials solutions, Avient is well positioned to enable sustainability for our customers. While conventional air emissions are a critical and a highly influential topic in some industrial sectors, as a materials solutions company utilizing purchased materials, Avient’s conventional air emission levels from legacy operations are de minimis and not material.

Customized & Consistent Material Explore Avient’s Advanced Composites portfolio. GridCore™ Composite Utility Poles from Avient

Avient Resources Avient Resources Provided material compatibility with HDPE and added reinforcement to meet burst strength requirements

Phil Clark is Senior Vice President, Chief Technology Officer at Avient Corporation, an innovator of materials solutions that help customers succeed while enabling a sustainable world. He eventually served as 3M’s Vice President for Research and Development for the Automotive and Aerospace Solutions division. Avient Corporation • 33587 Walker Road • Avon Lake, Ohio 44012 • 440.930.1000 • www.avient.com

Special items for the third quarter of 2022 had an ($0.75) impact on EPS and included acquisition-related costs that primarily consist of financing commitment fees, inventory step-up adjustments and settlement of foreign currency contracts used to hedge a portion of the DSM Protective Materials (now Avient Protective Materials or APM) acquisition purchase price. A recording of the webcast and the slide presentation will be available at avient.com/investors/events-presentations immediately following the conference call and will be accessible for one year. https://www.avient.com/investors https://edge.media-server.com/mmc/p/fqwbh5zv https://www.avient.com/investors https://register.vevent.com/register/BI3f68f18c2b10416fa722221e3f01ea50 http://www.avient.com/investors/events-presentations 4 About Avient Avient Corporation (NYSE: AVNT) provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Examples include: • Dyneema®, the world’s strongest fiber™, enables unmatched levels of performance and protection for end-use applications, including ballistic personal protection, marine and sustainable infrastructure and outdoor sports • Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy • Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation and reduce carbon footprint • Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation and fiber optic / 5G network accessibility Avient is certified ACC Responsible Care®, a founding member of the Alliance to End Plastic Waste and certified Great Place to Work®.

Recycle Solutions Avient helped a particular customer displace nonrecyclable packaging.

Recycle Solutions Avient helped a particular customer displace nonrecyclable packaging.

Recycle Solutions Avient helped a particular customer displace nonrecyclable packaging.

JOHN MIDEA Senior Vice President, Global Operations and Process Improvement John Midea is Senior Vice President, Global Operations and Process Improvement at Avient Corporation, an innovator of materials solutions that help customers succeed while enabling a sustainable world. Midea previously was President and CEO Resco Products and President and COO at Ennis Traffic Solutions. Avient Corporation • 33587 Walker Road • Avon Lake, Ohio 44012 • 440.930.1000 • www.avient.com