With the Clariant Masterbatch acquisition and divestment of the PP&S business, our exposure is now concentrated in less-cyclical and high-growth markets, with increased geographic diversification and a more specialized portfolio that can significantly expand EBITDA margins. 25 Avient reflects 2021 estimated EBITDA of $580M O U R VA LUATI O N V E R S U S P E E R S Avient Specialty Formulators Other Chemical/Specialty Companies 9.5 18.5 15.1 15.1 14.0 11.0 10.4 29.5 28.2 23.9 18.7 12.4 12.2 11.1 9.3 9.2 9.2 7.6 7.6 6.0 A vi e n t K W R P P G A V Y R P M F U L G C P A L B H X L E C L IF F F M C B N R A S H S C L E M N U N V R K R A C E H U N Median: 11.1xMedian: 14.6x S U M M A RY: W H Y I N V E S T I N AV I E N T ?

With the Clariant Masterbatch acquisition and divestment of the PP&S business, our exposure is now concentrated in less-cyclical and high-growth markets, with increased geographic diversification and a more specialized portfolio that can significantly expand EBITDA margins. 28 Avient reflects 2021 estimated EBITDA of $560M O U R VA LUATI O N V E R S U S P E E R S Avient Specialty Formulators Other Chemical/Specialty Companies 10.2 17.7 16.0 14.9 14.6 11.6 11.1 26.7 24.0 22.8 14.3 12.7 11.5 11.2 11.1 11.0 10.3 10.1 9.5 9.4 8.3 7.0 A vi e n t K W R A V Y R P M P P G G C P F U L A L B H X L E C L IF F F M C B N R A S H G R A F O E S C L E M N U N V R C E K R A H U N Median: 11.1xMedian: 14.8x S U M M A RY: W H Y I N V E S T I N AV I E N T ?

With the Clariant Color business acquisition and divestment of the PP&S business, our exposure is now concentrated in less-cyclical and high-growth markets, with increased geographic diversification and a more specialized portfolio that can significantly expand EBITDA margins. 33 Avient reflects 2021 estimated EBITDA of $580M O U R VA LUATI O N V E R S U S P E E R S Avient Specialty Formulators Other Chemical/Specialty Companies 11.4 20.2 16.7 16.5 14.7 12.0 10.8 40.7 29.9 26.2 13.2 12.4 11.0 10.9 9.1 9.0 7.5 6.5 A vi e n t K W R P P G A V Y R P M F U L G C P A L B H X L E C L A S H F M C B N R S C L U N V R E M N C E H U N S U M M A RY: W H Y I N V E S T I N AV I E N T ?

With the Clariant Masterbatch acquisition and divestment of the PP&S business, our exposure is now concentrated in less-cyclical and high-growth markets, with increased geographic diversification and a more specialized portfolio that can significantly expand EBITDA margins. 28 Avient reflects 2021 estimated EBITDA of $560M O U R VA LUATI O N V E R S U S P E E R S Avient Specialty Formulators Other Chemical/Specialty Companies 10.4 18.2 16.0 15.5 15.3 11.3 11.0 29.7 26.5 23.5 18.2 13.4 11.9 11.9 11.7 10.5 10.4 10.3 10.1 9.7 7.7 6.5 A vi e n t K W R A V Y P P G R P M F U L G C P H X L A L B E C L IF F F M C B N R A S H G R A E M N F O E S C L U N V R C E K R A H U N Median: 11.7xMedian: 15.4x S U M M A RY: W H Y I N V E S T I N AV I E N T ?

HIGHLIGHTS from 2023: Key Markets Key Customer Challenges • Improve fuel economy • Reduce energy consumption • Reduce carbon footprint • Lessening environmental impact Avient Solutions & Services • Specialty solutions designed to replace traditional materials (e.g. metal, wood) at lower weight • Alternative solutions to reduce emittance of volatile organic compounds • Lightweighting design and solutions to reduce material usage • Avient Design Ser vices to reduce weight or energy consumption REDUCE Consumer Transportation Building & Construction 20% LESS MATERIAL Lightweight Dashboards Hydrocerol™ Chemical Foaming Agents LEARN MORE REDUCES VOCs SmartBatch™ FX for Body & Trim Paint Replacement LEARN MORE 59% Air Cargo Nets Bio-Based Dyneema® Fiber LEARN MORE SUSTAINABLE DESIGN Design for Lightweighting Avient Design Services LEARN MORE LESS WEIGHT 60% EV Connectors Edgetek™ PKE Non-Halogen Flame Retardant Formulations LEARN MORE40% LED Lighting Components Therma-Tech™ Thermally Conductive Formulations LEARN MORE LESS CO 2 THAN NYLON LIGHTER THAN ALUMINUM LEARN MORE Avient Sustainability HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Per formance | Metrics | Index Sustainability Report | 2023 43Sustainability Report | 2023 43 https://www.avient.com/products/polymer-additives/foaming-agents/hydrocerol-chemical-foaming-agents https://www.avient.com/products/polymer-colorants/color-additive-combination-masterbatches/smartbatch-fx-paint-replacement-0 https://www.dyneema.com/sustainability/bio-based-dyneema-fiber https://www.avient.com/resource-center/services/avient-design https://www.avient.com/products/engineered-polymer-formulations/chemical-corrosion-resistant-formulations/edgetek-pke-polyketone-formulations https://www.avient.com/products/engineered-polymer-formulations/conductive-signal-radiation-shielding-formulations/therma-tech-thermally-conductive-formulations https://www.avient.com/company/sustainability/sustainable-solutions-portfolio PRESERVE Avient’s portfolio of PRESERVE sustainable solutions are designed to preser ve natural resources like water, protect human health and safety, and enable sustainable infrastructure.

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GHG Emissions (MT) Greenhouse Gas Emissions (MT Scope 1 & 2 GHG) Greenhouse Gas Emissions Intensity (MT 1 & 2 GHG/ MT Production) 0 60,000 120,000 180,000 240,000 300,000 2016 2017 2018* 2019* .45 .40 .35 .30 .25 .20 .15 .10 .05 0 .43 .35 .38 .34 Total Energy (GJ) Energy Intensity (MWh/MT Production) Total Energy 0 200,000 400,000 600,000 800,000 1,000,000 2016 2017 2018 2019 1.10 1.00 .90 .80 .70 .60 .99 .86 .91 .85 *Excludes divested PP&S segment and is consistent with the GHG Protocol Corporate Accounting and Reporting Standard. More recently, with the divestiture of the PP&S segment in 2019 and the acquisition of Clariant Masterbatch in 2020, we have fundamentally repositioned our portfolio to that of a true specialty enterprise—from which we can springboard to even greater heights in the future. EBITDA as % of Revenue 2019 Pro Forma Color, Additives & Inks 15.2% Specialty Engineered Materials 15.2% Distribution 6.4% Avient 11.1% 0% 20% 40% 60% 80% 100% 0% 20% 40% 60% 80% 100% 2005 2010 2015 2019 PF** $14M $117M $273M $500M Adjusted EBITDA* from Specialty Platform % o f A d ju st e d E B IT D A * Specialty EBITDA DistributionJV’s Performance Products & Solutions Specialty Applications * Adjusted EBITDA is EBITDA excluding corporate costs and special items ** 2019 Pro Forma for PP&S Divestiture and Clariant Color & Additive Masterbatch business acquisition with synergies 7% 46% 87% 0 10 20 30 40 50 0 10 20 30 40 50 Building & Construction High Growth End Markets A Specialty Transformation Poised for Future Growth 2006 2019 PF** 2006 2019 PF** 38% 5% 22% 50% ** 2019 Pro Forma for PP&S Divestiture and Clariant Color & Additive Masterbatch business acquisition with synergies E n d M a rk e t R e v e n u e a s a % o f T o ta l 8% 10% 4% 20% 18% 12%E n d M a rk e t R e v e n u e a s a % o f T o ta l 66% HOME | Contents | Message from the CEO | Who We Are | People | Products | Planet | Performance | Goals & Metrics | Indices Sustainability Report | 2019 78 https://www.avient.com/company/policies-and-governance/code-conduct *Avient Sustainable Solutions definitions aligned with F TC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) 2016 2017 2018 2019 Revenue from Sustainable Solutions* 2016–2019 Lightweighting Reduced Material Requirements Eco-conscious Bio-derived Content Reduced Energy Use Volatile Organic Compound Reduction Recyclability Renewable Energy Applications $275M $325M $355M $410M 14% Total Annual Growth 9% Organic Annual Growth Sustainable Products Performance As highlighted in our Products section, Avient has a highly- technical and broad portfolio of materials solutions that help our customers—and our planet—be more sustainable.

GHG Emissions (MT) Greenhouse Gas Emissions (MT Scope 1 & 2 GHG) Greenhouse Gas Emissions Intensity (MT 1 & 2 GHG/ MT Production) 0 60,000 120,000 180,000 240,000 300,000 2016 2017 2018* 2019* .45 .40 .35 .30 .25 .20 .15 .10 .05 0 .43 .35 .38 .34 Total Energy (GJ) Energy Intensity (MWh/MT Production) Total Energy 0 200,000 400,000 600,000 800,000 1,000,000 2016 2017 2018 2019 1.10 1.00 .90 .80 .70 .60 .99 .86 .91 .85 *Excludes divested PP&S segment and is consistent with the GHG Protocol Corporate Accounting and Reporting Standard. More recently, with the divestiture of the PP&S segment in 2019 and the acquisition of Clariant Masterbatch in 2020, we have fundamentally repositioned our portfolio to that of a true specialty enterprise—from which we can springboard to even greater heights in the future. EBITDA as % of Revenue 2019 Pro Forma Color, Additives & Inks 15.2% Specialty Engineered Materials 15.2% Distribution 6.4% Avient 11.1% 0% 20% 40% 60% 80% 100% 0% 20% 40% 60% 80% 100% 2005 2010 2015 2019 PF** $14M $117M $273M $500M Adjusted EBITDA* from Specialty Platform % o f A d ju st e d E B IT D A * Specialty EBITDA DistributionJV’s Performance Products & Solutions Specialty Applications * Adjusted EBITDA is EBITDA excluding corporate costs and special items ** 2019 Pro Forma for PP&S Divestiture and Clariant Color & Additive Masterbatch business acquisition with synergies 7% 46% 87% 0 10 20 30 40 50 0 10 20 30 40 50 Building & Construction High Growth End Markets A Specialty Transformation Poised for Future Growth 2006 2019 PF** 2006 2019 PF** 38% 5% 22% 50% ** 2019 Pro Forma for PP&S Divestiture and Clariant Color & Additive Masterbatch business acquisition with synergies E n d M a rk e t R e v e n u e a s a % o f T o ta l 8% 10% 4% 20% 18% 12%E n d M a rk e t R e v e n u e a s a % o f T o ta l 66% HOME | Contents | Message from the CEO | Who We Are | People | Products | Planet | Performance | Goals & Metrics | Indices Sustainability Report | 2019 78 https://www.avient.com/company/policies-and-governance/code-conduct *Avient Sustainable Solutions definitions aligned with F TC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) 2016 2017 2018 2019 Revenue from Sustainable Solutions* 2016–2019 Lightweighting Reduced Material Requirements Eco-conscious Bio-derived Content Reduced Energy Use Volatile Organic Compound Reduction Recyclability Renewable Energy Applications $275M $325M $355M $410M 14% Total Annual Growth 9% Organic Annual Growth Sustainable Products Performance As highlighted in our Products section, Avient has a highly- technical and broad portfolio of materials solutions that help our customers—and our planet—be more sustainable.

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