Rose, Vice President, Corporate Communications, PolyOne Corporation, +1 440-930-3162, kyle.rose@avient.com

Social-related data reported to stakeholders rose 37% in 2021 compared to 2020 (McKinsey & Company).

Rose

Rose Director, Corporate Communications PolyOne Corporation +1 440-930-3162 kyle.rose@avient.com

Rose

Many other countries are following suit on the EU REACH chemicals regulation. However, no one company or country can solve the plastics waste problem. Many other countries are following suit on the EU REACH chemicals regulation.

Over 7,500 Avient associates participated in our 2021 survey, representing over 40 countries. Our company rose more than 140 positions from the 2021 list to land the 25th spot this year as Avient. However, no one company or country can solve the plastics waste problem.

More than 3,500 associates in 44 events taking place in 22 countries participated in a physical activity focused on promoting healthy lifestyles and encouragement. This commitment is exemplified by our No Surprises PledgeSM which we make to all customers and markets, across the globe. • You can be confident that, in formulating and manufacturing our materials, we use sustainable practices to provide long-term product viability and sound environmental stewardship • You can expect that the materials we produce contain only ingredients that conform to accepted legal and regulatory compliance guidelines • You can trust that PolyOne materials meet the rigorous quality and safety management standards required across the globe • You can be certain that PolyOne meets or exceeds the material safety data reporting requirements of your country or region • When you choose PolyOne, you can be confident our products will help you meet or exceed today’s stringent compliance standards FROM PRODUCTS INTRODUCED IN THE LAST 5 YEARS 37% of specialty sales Photos: Last year PolyOne broke ground on a new manufacturing and R&D facility in Chuzhou, China. port | 2019 lobal product development, quality and service also require world-class facilities and infrastructure to produce materials, and we invest accordingly.

White House Administration GOVERNMENT INFLUENCE CREATES OPPORTUNITIES Avient Corporation 32 175 Countries support the UN Plastics Treaty to help manage plastics pollution £210 U.K. tax per tonne on products containing less than 30% recycle content (U.K. Plastics Pact Post-Consumer Recycle (PCR) Color Predictive Tool Innovation Award, Winner: Plastics Industry Association Product Technology Innovation, Winner: Plastics Recycling Awards Europe 2023 Additive for Enhanced Recycling Innovation Award, Finalist: Plastics Industry Association Product Technology Innovation, Finalist: Plastics Recycling Awards Europe 2023 Service Innovation Enables Quality Recycle Product Innovation Enables PCR Claims + Low CO2 Product Innovation Protects Quality Recycle …are Growing at Twice the Rate as Conventional ProductsSustainably-Branded Products… Consumers Are demanding recyclability and eco- conscious products Governments Are mandating changes through legislation, taxes, and regional accords STAKEHOLDER INFLUENCE DRIVES DEMAND For Sustainable Products From Sustainable Companies Brand Owners Have committed to ambitious goals to achieve sustainability metrics Avient Corporation 77 Avient Corporation 78 SUSTAINABILITY TRENDS DRIVE LONG-TERM GROWTH 8-12% Long Term Growth 18 46 2023 2032 Global Offshore Annual Wind Installations (in Gigawatts) 50 90 2022 2030 Medical Plastics Market Size (in $Billions) 2020 2030 12% CAGR 3% CAGR Recycled Plastics Virgin Plastics Growing Demand for Recycled Content Avient Sustainable Solutions 11% CAGR 8% CAGR Sources: McKinsey, Bloomberg, Grand View Research Avient Corporation 79 Increasing the use of recycled content Reducing weight to lower fuel consumption 2022 SALESDESCRIPTION $340M $310M $525M OUTCOMES Enabling customers to advance the circular economy Shrinking carbon footprint and decreasing emissions Making our planet a better place for all Using fewer natural resources; protecting human life $1,175MTOTAL SALES SUSTAINABILITY TRENDS DRIVE LONG-TERM GROWTH AVIENT IS WELL-POSITIONED A Clean House Avient holds leading ratings on ESG matters of importance to customers, countries, and key stakeholders Leading Portfolio Our formulation expertise and materials are meeting the unique sustainability needs of our customers around the world in endless applications 8-12% Long-Term Growth RateAvient’s Sustainable Solutions Investing in Innovation 85% of our opportunity funnel is directed at sustainable solutions addressing unmet customer needs Avient Corporation 80 Avient Corporation 81 ADJUSTED EBITDA MARGIN EXPANSION • Transformative acquisitions combined with divestitures of more cyclical businesses have improved margins over 400 bps since 2018 • 20% long-term margin goal to be driven by key growth drivers, with sustainable solutions playing a meaningful role 5.4% 11.5% 16.0% 17.3% 20% 20.0% 2006 2018 2023E Recovery Growth Drivers Strategic Objective 20%+ +1%+ +3%+ Community Service 7x Safer than Industry Average World-Class Safety Leadership Development Over $19 million raised since 2007 Diversity & Inclusion PEOPLE AND CULTURE Avient Corporation 82 Avient Corporation 83 • 6% annualized long-term sales growth leveraging sustainable solutions, composites, healthcare, and emerging regions • Expand EBITDA margins to 20% • Deliver annual EBITDA and EPS growth of 10% and 15% • Maintain asset-light, 80% free cash flow conversion profile and be valued as a specialty formulator • Continue fostering our Great Place to Work® culture LONG-TERM OBJECTIVES Avient Corporation 84 Wrap Up and Q + A Bob Patterson Chairman, President, and Chief Executive Officer Avient Corporation 85 Investor Deck_9_19_23 v4_WEBSITE_GAAP.pdf 2023 SR Non-GAAP Rec v3

Globally, many other countries are following the EU REACH chemicals regulation and implementing similar frameworks. PFAS covers thousands of different substances and definitions of PFAS differ across organizations, states, and countries. Many other countries are following suit on the EU REACH chemicals regulation or a similar framework.