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Consumer 23% Building & 10% Transportation Industrial 16% Telecom. 19% Avient: Who We Are 39 22 34 • U.S. and Canada • Latin America • Europe, Middle East & Africa • Asia 25,000+ CUSTOMERS Headquartered in Avon Lake, OH (Cleveland) 8,600+ employees 100+ manufacturing plants Key Financial Data 2021E Sales $4.75 billion 2021E EBITDA $580 million 2021E EPS $3.00 87% of EBITDA from specialty applications >70% ARE CUSTOMIZED SOLUTIONS TO UNIQUE SPECIFICATIONS of sales Avient Corporation 6 46% 66% 87% 0% 20% 40% 60% 80% 100% 2005 2010 2015 2021E % o f A d ju st ed E IT (1 JVs Performance Products & Solutions Distribution Specialty 7% (1) Adjusted EBITDA is EBITDA excluding corporate costs and special items (2) 2021 includes full synergies from Clariant color acquisition (2) Specialty Transformation Avient Corporation 7 CAI (1) Financial information is pro forma to include a full year of Clariant Color business acquisition 2.7% 15.2% 17.0% 2006 2019 2021E 1.8% 15.2% 17.6% 2006 2019 2021E SEM • Continued portfolio transformation to high-growth end markets and sustainable solutions • Clariant synergy realization • Investments in composites and outdoor high performance applications drive growth and mix improvements Specialty EBITDA Margin Expansion Avient Corporation 8 We are a Formulator CUSTOM FORMULATION Avient Corporation 9 Sustainability for a Better Tomorrow *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) **2020 is Pro Forma to include full year of the Clariant Color business Revenue From Sustainable Solutions* 2016-2021 2016 2017 2018 2019 2020PF** 2021E $405M $455M $550M $790M $270 215 170 $930M2021E Sales Avient Corporation 10 $0.13 $0.68 $0.82 $1.00 $1.31 $1.80 $1.96 $2.06 $2.21 $2.43 $1.51 $1.69 $1.93 $3.00 2009 2010 2011 2012 2013 2014 2015 2016* 2017* 2018 20182 2019 2020 2021E Pro Forma for sale of PP&S (1): Pro Forma for sale of DSS (2): Pro Forma for full year of the Clariant Color acquisition 2018(1) (1) (2) Adjusted EPS Growth Avient Corporation 11 $133 $205 Clariant Color: Transformational Acquisition 12 Clariant Color EBITDA Growth Purchase Price Multiple 10.8x 7.0x 6.0x 2019PF 2021E 2021E w/ Full • Acquisition of Clariant Color business significantly expanded presence in healthcare, packaging and consumer end markets • Strength of portfolio – double-digit annual EBITDA growth since acquisition • On-track to realize $52 million of expected synergies in 2021 • Acquisition completed on July 1, 2020 for $1.45 billion. Avient Corporation 83 Avient in 5G Ecosystem Avient Corporation 84 Antenna Phase Shifters Smart Home Wearables INFRASTRUCTURE IOT DEVICES Smart Phones Autonomous Cars Virtual Reality Complete Cable Strength Members Water Blocking Yarns Ripcord Yarns Cable Jacket Cable Insulation Composites Growth Outlook Avient Corporation 85 10% CAGR 5G Capacity and Demand Source: Mobile Experts: 5G Millimeter Wave 2019: ns e an C ap ac ity ( o. GDP Growth Avient Historic Growth Future Growth Assumptions Global Avient: 2.7% Asia / LATAM: 5.0% Source: International Monetary Fund, World Economic Outlook Database (April 2021) 12% organic CAGR Figures above include relevant sustainable solutions, healthcare and composites sales Avient Corporation 120 8-10% (5% CAGR excluding Sustainable Solutions) Summary: Long-term Revenue Growth Drivers Avient Corporation 121 2021 Sales Estimate (Drivers) Overlap 2021 Sales Estimate Annual Growth Sustainable Solutions 930 - 930 8–12% Healthcare 685 (45) 640 8–10% Composites 260 (80) 180 10% Asia / LATAM 1,150 (310) 840 5% Other (GDP growth) 2,160 2–3% Avient $4,750 6.5% EBITDA Margin Expansion Goals CAI SEM • Continued portfolio transformation to high- growth end markets and sustainable solutions • Clariant Color synergy realization • Investments in composites and outdoor high performance applications drive growth and mix improvements Avient Corporation 122 17.0% 1.6% 1.0% 0.4% 2021E Synergies Sustainable Healthcare Goal 17.6% 0.9% 1.1% 0.4% 2021E Composites Sustainable Healthcare Goal Sustainable Path to Double Digit Earnings Growth Avient Corporation 123 Long-Term Sales Growth Rate Sustainable Solutions 8–12% Healthcare 8–10% Composites 10% Asia / LATAM 5% Other (GDP growth) 2–3% Avient 6.5% 10%+ Adjusted EBITDA growth 15%+ Adjusted EPS growth An Investment in Sustainable Growth Bob Patterson Avient Corporation 124 M&A Brings Avient New Technologies Avient Corporation 125 Technology Acquisition Technology Acquisition Thermoplastic Elastomers Liquid Color Concentrates & Additives Continuous Fiber Thermoplastic Composites Silicone Colorants & Formulations High-temperature Polymers & Fluoropolymers Long Fiber Reinforced (LFT) Thermoplastic Composites Fiber Solutions Water-based Inks Fiber & Healthcare Expertise, Liquid Additive Processing Aids, FR Additives, Recycling Innovations & More $133 $205 Clariant Color: Transformational Acquisition 126 Clariant Color EBITDA Growth Purchase Price Multiple 10.8x 7.0x 6.0x 2019PF 2021E 2021E w/ Full • Acquisition of Clariant Color business significantly expanded presence in healthcare, packaging and consumer end markets • Strength of portfolio – double-digit annual EBITDA growth since acquisition • On-track to realize $52 million of expected synergies in 2021 • Acquisition completed on July 1, 2020 for $1.45 billion.

Please complete, sign, date and return your proxy or voting instruction form, or submit your vote and proxy by telephone or over the Internet. On July 19, 2017, we completed the sale of our DSS business to Arsenal Capital Partners. In the event of a change of control, cash-settled performance units for which all performance periods are completed as of December 31, 2017 are valued at actual attainment, and cash-settled performance units for which all performance periods are not completed as of December 31, 2017 are valued at target attainment.

Please complete, sign, date and return your proxy or voting instruction forff m, or submit your vote and proxy by telephone or over the Internet. Upon completing this assessment, the Compensation Committee also determined that no “confliff cts of interest have been raised by the work perforff med by the Consultant.” In the event of a change of control, cash-settled performance units for which all perforff mance periods are completed as of December 31, 2016 are valued at actual attainment, and cash-settled performance units for which all perforff mance periods are not completed as of December 31, 2016 are valued at target attainment.

Nous sommes tous tenus de préparer et de tenir à jour des renseignements exacts et des dossiers complets. Vous devez vous assurer que tout rapport ou dossier que vous préparez est exact et complet et ne contient aucune entrée fausse ou trompeuse. De plus, ces paiements doivent être inscrits de manière exacte et complète dans les registres comptables à titre de dépenses d’entreprise.

The coefficient of friction (COF) characterizes the degree of force required to move one surface across another — either from a complete stop (static friction) or when the surface is already moving (kinetic friction). Recut tool to obtain complete shutoff with minimum 0.002" (0.05 mm) interference into substrate Recut tool to obtain complete shutoff with minimum 0.002" (0.05 mm) interference into substrate

Investor Day POLYONE I N V E S T O R P R E S E N T A T I O N M A R C H 2 0 1 9 FORWARD LOOKING STATEMENTS PolyOne Corporation 2 USE OF NON-GAAP MEASURES PolyOne Corporation 3 V I S I O N PolyOne Corporation 4 To be the world’s premier provider of specialized polymer materials, services and solutions C O R E V A L U E S P E R S O N A L V A L U E S Honesty IntegrityRespect Operational Excellence Commercial Excellence Specialization Globalization Collaboration ExcellenceInnovation To be the world’s premier provider of specialized polymer materials, services and solutions S A F E T Y F I R S T PolyOne Corporation 5 Injuries per 100 Workers Spartech Acquisition 1.3 1.1 1.1 0.85 0.65 0.57 0.54 0.97 0.84 0.74 0.74 0.69 0.51 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 PolyOne Corporation 6 P O L Y O N E 2 0 1 8 R E V E N U E | $ 3 . 5 B I L L I O N United States 57% 16% Latin America Canada Distribution Performance Products & Solutions 19% Specialty Engineered Color Additives & Inks 29% Segment End Market Geography Building & Construction Electrical & Electronics 13% 2009 2010 2011 2012 2013 2014 2015 2016* 2017* 2018 $2.43 P R O O F O F P E R F O R M A N C E C O N S E C U T I V E Y E A R S PolyOne Corporation 7 9 $0.13 $0.68 $0.82 $1.00 $1.31 $1.80 $1.96 $2.06 $2.21 ROIC** 5.0% 14.1% Operating Income % of Sales Color, Additives & Inks 1.7% 15.1% Specialty Engineered Materials 1.1% 11.2% Performance Products & Solutions 4.3% 10.0% Distribution 2.6% 5.6% A D J U S T E D E P S E X P A N S I O N S U S T A I N A B L E P A T H T O D O U B L E - D I G I T E P S G R O W T H PolyOne Corporation 8 P E O P L E P R O D U C T S P L A N E T P E R F O R M A N C E Double digit annual EPS growth strategic acquisitions Innovate 600K-1M commercial resources 5-7% Double acquired Lean Six Sigma commercial excellence 531 710 130 164 504 663 R&D / Technical Marketing Sales PolyOne Corporation 9 Increased commercial headcount + 34% + 26% + 32% I N V E S T M E N T I N COMMERCIAL RESOURCES D R I V I N G G R O W T H Sustained revenue increases led by organic business $2.9 $2.9 $3.2 $3.5 2015 2016 2017 2018 Total + 9% Organic + 5% Revenue in billions of $ Total + 10% Organic + 7% Lead Specialists T H E E V O L V I N G C U S T O M E R R E L A T I O N S H I P PolyOne Corporation 10 Expanded Path Traditional Path Strategic Accounts/ Field Sales Business Development Customer Service Web and Social Media Inside Sales PolyOne Corporation 11 Investments in digital and dedicated inside sales to improve customer experience 110% increase in leads (from 6,000 to 12,700) driven by website, phone, and online chat EXPANDED PATH A DDI N G C U S T O M E R T O U C H P O I N T S 24 Inside sellers $11M $109M Inside sales/digital revenue A L I G N I N G W I T H T R E N D S F O R G R O W T H T R A N S P O R T A T I O N P A C K A G I N G H E A L T H C A R E C O N S U M E R PolyOne Corporation 12 Facilitate alternative energy solutions Light- weighting Reduce packaging materials Improve recyclability Reduce spread of infection I N N O V A T I O N PolyOne Corporation 13 Customization 55% M&A 30% Innovation Pipeline Innovation comes from Research & Development Spend Vitality Index $20 $56 Transformational Adjacent Core 3 H O R I Z O N S O F D E V E L O P M E N T PolyOne Corporation 14 Market Technical I N N O V A T I O N I N N O V A T I O N P I P E L I N E PolyOne Corporation 15 PrototypeFrame Opportunity Scale-up & Test Market Build Business Case Commercial Launch (since 2017) Phase 1 Phase 2 Phase 3 Phase 4 Phase 5 6 11 3 2 28 0 10 7 2 Breakthrough Platform Derivative F L A M E R E T A R D A N T P O L Y M E R S A D V A N C E D C O M P O S I T E S B A R R I E R M A T E R I A L S C O L O R A N T T E C H N O L O G I E S T H E R M O P L A S T I C E L A S T O M E R S I N N O V A T I O N S P O T L I G H T : C O M P O S I T E S PolyOne Corporation 16 C O M P O S I T E S R E F R E S H E R PolyOne Corporation 17 Fiber Polymer Composite S T R A T E G I C I N V E S T M E N T H I S T O R Y Thermoplastic Composites Long Fiber Reinforced Thermoplastics Continuous Fiber Thermosets Long Fiber Reinforced Thermoplastics Continuous Fiber Thermosets 2012 2015 20162009 2011 2018 PolyOne Corporation 2019 18 C O M P O S I T E S I N T R A N S P O R T A T I O N PolyOne Corporation 19 W A T E R C R A F TR A I L H E A V Y T R U C K F I B E R - L I N E H I G H L I G H T S PolyOne Corporation 20 $100M Customer Value Fiber-Line Fiber Processing Capabilities Polymer Formulation Capabilities P O L Y O N E A P P L I C A T I O N S I N F I B E R O P T I C C A B L E S PolyOne Corporation 21 F I B E R O P T I C A L G R O W T H D R I V E R S PolyOne Corporation 22 5G Networks 10x 8x 5G vs. 4G PolyOne Corporation 23 Safety Technology Geography Service FinancialPeople 8-10% with ability to double I N V E S T - T O - G R O W M & A S T R A T E G Y PolyOne Corporation 24 Capture sourcing synergies Cross-sell & blend technology 8-10% operating I N V E S T - T O - G R O W M & A P L A Y B O O K Protect customers Retain employees Implement LSS to drive efficiency improvements Innovate with combined portfolio Safety First!

The comprehensive online publication highlights progress made toward Avient’s 2030 Sustainability Goals, along with other news and information on ESG matters.