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. 31 Avient reflects 2021 estimated EBITDA of $580M OUR VALUATION VERSUS PEERS Avient Specialty Other 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 en t Median: 11.1xMedian: 14.6x SUMMARY: WHY INVEST IN AVIENT?

GHG Emissions (MT) Greenhouse Gas Emissions (MT Scope 1 & 2 GHG) Greenhouse Gas Emissions Intensity (MT 1 & 2 GHG/ MT Production) 60,000 120,000 180,000 240,000 300,000 2016 2017 2018* 2019* .45 .40 .35 .30 .25 .20 .15 .10 .05 .43 .35 .38 .34 Total Energy (GJ) Energy Intensity (MWh/MT Production) Total Energy 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% 60% 80% 0% 60% 80% 2005 2010 2015 2019 PF** $14M $117M $273M $500M Adjusted EBITDA* from Specialty Platform o f ju st E B IT D * 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% 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 M ke t ve e a % o f To ta l 8% 10% 4% 18% 12%E M ke t ve e a % o f To ta l 66% Sustainability Report | 2019 78 *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) 2016 2017 2018 2019 Revenue from Sustainable Solutions* 2016–2019 Reduced Material Eco-conscious Bio-derived Content Reduced Energy Use Volatile Organic Compound Recyclability Renewable Energy Applications $275M $325M $355M $410M 14% Total Annual Growth 9% Organic Annual Growth Sustainable Products 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) 60,000 120,000 180,000 240,000 300,000 2016 2017 2018* 2019* .45 .40 .35 .30 .25 .20 .15 .10 .05 .43 .35 .38 .34 Total Energy (GJ) Energy Intensity (MWh/MT Production) Total Energy 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% 60% 80% 0% 60% 80% 2005 2010 2015 2019 PF** $14M $117M $273M $500M Adjusted EBITDA* from Specialty Platform o f ju st E B IT D * 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% 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 M ke t ve e a % o f To ta l 8% 10% 4% 18% 12%E M ke t ve e a % o f To ta l 66% Sustainability Report | 2019 78 *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) 2016 2017 2018 2019 Revenue from Sustainable Solutions* 2016–2019 Reduced Material Eco-conscious Bio-derived Content Reduced Energy Use Volatile Organic Compound Recyclability Renewable Energy Applications $275M $325M $355M $410M 14% Total Annual Growth 9% Organic Annual Growth Sustainable Products 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.

331736 RD PP MASTERBATCH 331737 BN PP MASTERBATCH PP FR 8-6 LMS-1000

PG 65623.00 BU PP PG 65622.00 BU PP PG 65640.00 BU PP

PP OW PURPLE PP BLUE 2154C III PG 323590.00 PK PP

PG 24371GN PP PG 24331 GN PP PG 24345 GN PP

PD2 PP/TPO K/E PP MET. PP PRL.

PP 401CS BLU 911-5 PP 401 GY 2270 PP 554CS GY 2334-2

FUCSIA PP WHITE PP YELLOW PP