Shares Available Under this Plan (a) (i) Section 12 Section 3(b) ( ) Section 9 Section 10 2017 Plan (ii) Section 3(b)( ) Section 3(a)(i) ( )( ) (b) (i) Section 22 Section 3(a)(i) ( )( ) (ii) (iii) Section 3(a)(i) ( )( ) Section 3(a)(i) ( )( ) Section 3(a)(i)( )( ) Section 3(a)(i)( )( ) (iv) Section 3(a)(i)( )( ) (c) Section 3 Section 12 (d) Section 3 (e) Section 3(e)( ) Section 3(a)(i) Section 12( )( ) Section 3(e)( ) Section 17(c)( ) 4. Withholding Taxes. 17. a) Section 12 (b) Section 12 Section 17(b) ( ) Section 12 Section 17(b)( ) (c) Section 10 Section 11(b) ( ) (d) Section 17(b) ( ) Section 12 18.

Table of Contents Introduction 1 Overmolding 2 Material Selection 4 Part and Mold Design 6 Material Handling and Preparation 17 TPE Injection Molding 18 Overmolding Processing – Maximizing Adhesion 21 TPE Injection Molding Troubleshooting 23 TPE Overmolding Troubleshooting 28 Index 30 1 Introduction Avient is the recognized leader in the overmolding of thermoplastic elastomers (TPEs). Flow Length, inches (cm) Series Injection Velocity, 3 in/s (8 cm/s) Injection velocity, 5 in/s (13 cm/s) DynaflexTM D 13-15 (33-38) 18-20 (46-51) DynaflexTM G 12-22 (30-56) 18-30 (46-70) VersaflexTM 9-16 (23-41) 13-26 (33-66) VersalloyTM 18-20 (46-51) 30-32 (76-81) VersollanTM 12-17 (30-43) 19-22 (48-56) *Spiral flow tests performed using a 0.0625" (1.6mm) thick, 0.375" (9.5mm) wide channel at 400˚F (204˚C). Flow Length, inches (cm) Series Injection Velocity, 3 in/s (8 cm/s) Injection velocity, 5 in/s (13 cm/s) DynaflexTM D 13-15 (33-38) 18-20 (46-51) DynaflexTM G 12-22 (30-56) 18-30 (46-70) VersaflexTM 9-16 (23-41) 13-26 (33-66) VersalloyTM 18-20 (46-51) 30-32 (76-81) VersollanTM 12-17 (30-43) 19-22 (48-56) *Spiral flow tests performed using a 0.0625" (1.6mm) thick, 0.375" (9.5mm) wide channel at 400˚F (204˚C).

% Solids Color Index pH Typical Lightfastness GREEN HCC-12172 Phthalocyanine BS 17 1.07 PG-7 1 I/O HCC-12173 Phthalo Brominated VYS 25 1.16 PG-36 1 I/O HCC-10562 Phthalocyanine YS 30 1.15 PG-7 1 I/O HCC-12176 Chromium Oxide 80 2.8 PG-17 1 I/O VIOLET/MAGENTA HCC-17680 (c) Ultramarine Violet 50 1.46 PV-15 1 I/O HCC-2170 (b) Quinacridone Violet 30 1.09 PV-19 2 I/O HCC-14562 Quinacridone Magenta 25 1.06 PR-122 2 I/O HCC-26775 Benzimidazolone 20 1.03 PV-32 2 I/O HCC-33159 (a) Carbazole Violet 12 1.03 PV-23 2 I/O BROWN/TAN HCC-1286 (b) Iron Oxide, Tan HR 60 1.85 PBr-11 1 I/O HCC-12201 Iron Oxide, Light 71 2.21 PBr-6 2 C I/O HCC-12202 Iron Oxide, Dark 67.5 2.06 PBr-6 2 C I/O BLACK HCC-12203 Furnace-High Jet 18 1.06 PBk-7 1 I/O HCC-12204 Furnace-High Jet 6 1 PBk-7 1 I/O HCC-12205 Furnace-Low Jet 34 1.15 PBk-7 1 I/O HCC-12206 Furnace-Medium Jet 20 1.07 PBk-7 1 I/O HCC-18654 Furnace-Ultra High Jet 15 1.04 PBk-7 1 I/O HCC-14674 Iron Oxide 59 1.82 PBk-11 2 C I/O ALUMINUM HCC-12177 Aluminum 50 1.43 PM-1 2 I/O HCC RS = Red Shade YS = Yellow Shade VYS = Very Yellow Shade BS = Blue Shade VBS = Very Blue Shade GS = Green Shade NC = Non-Crystallizing HR = Heat-Resistant (a) = Potential Bleed / Migration (b) = ESO plasticizer (Epoxidized Soybean Oil) (c) = Pigment may fade in acidic environment LIGHTFASTNESS I = Indoor Only I/O = Indoor or Outdoor Mass = Outdoor Masstone Application Only C = Some Caution Advised HEAT STABILITY 1 = Above 400°F 2 = 350°F–400°F 3 = Below 350°F C = Some Caution Advised www.avient.com Copyright © 2020, Avient Corporation.

THERMA-TECH TT3300-5001EC GREY THERMA-TECH TT6600-5001EC GREY THERMA-TECH TT6600-5008EC ANTHRACITE THERMA-TECH TT9200-5003EC GREY THERMA-TECH TT9200-5003EC MID ANTHRACITE Applications Sensor, Camera & ECU Housings Sensor, Camera & ECU Housings Sensor, Camera & ECU Housings Sensor, Camera & ECU Housings Sensor, Camera & ECU Housings Defining Features Thermally & Electrically Conductive Thermally & Electrically Conductive Thermally & Electrically Conductive Thermally & Electrically Conductive Thermally & Electrically Conductive Filler/ Reinforcement Glass Fiber Glass Fiber Glass Fiber Glass Fiber Glass Fiber Surface Resistivity

Investor Day POLYONE I N V E S T O R P R E S E N T A T I O N A U G U S T 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 Transportation 17% Industrial 15% Consumer 12% Packaging 11% Wire & Cable 10% Appliance 5% United States 57% Europe 16% Asia 10% Latin America 10% Canada 7% Distribution 35% Performance Products & Solutions 19% Specialty Engineered Materials 17% Color Additives & Inks 29% Segment End Market Geography Building & Construction 11% Electrical & Electronics 6% Healthcare 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 2006 2018 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 margins Lean Six Sigma commercial excellence 531 710 130 164 504 663 2014 2018 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 4 24 2014 2018 Inside sellers $11M $109M 2014 2018 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 15% Innovation comes from Research & Development Spend Vitality Index 12% 35% 2006 2018 $20 $56 2006 2018 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 4 4 3 2 28 0 5 10 7 2 5 5 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 $100M • • • • • • • • • • • • • • • • • • • Customer Value Fiber-Line Fiber Processing Capabilities Polymer Formulation Capabilities P O L Y O N E A P P L I C A T I O N S I N F I B E R O P T I C C A B L E S PolyOne Corporation 21 • • • • • • • • • F I B E R O P T I C A L G R O W T H D R I V E R S PolyOne Corporation 22 5G Networks      10x 8x 5G vs. 4G PolyOne Corporation 23 Safety Technology Geography Service FinancialPeople 8-10% with ability to double I N V E S T - T O - G R O W M & A S T R A T E G Y PolyOne Corporation 24 Capture sourcing synergies Cross-sell & blend technology 8-10% operating margins I N V E S T - T O - G R O W M & A P L A Y B O O K Protect customers Retain employees Implement LSS to drive efficiency improvements Innovate with combined portfolio Safety First! Leverage PolyOne’s global reach Phase 1 Phase 2 Phase 3 18-20% operating margins Invest in commercial resources I N V E S T - T O - G R O W P R O O F O F P E R F O R M A N C E PolyOne Corporation 25 Commercial Resources Operating Income ($ in millions) Operating Margins 243 340 At Acquisition Today $36 $96 At Acquisition Today 11% 20% At Acquisition Today Established Acquisitions (> 7 years) + 40% + 165% + 900 bps I N V E S T - T O - G R O W D R I V I N G T H E F U T U R E PolyOne Corporation 26 Commercial Resources Operating Income ($ in millions) Operating Margins 138 181 251 At Acquisition Today Goal $23 $25 $70 At Acquisition Today Goal 7% 8% 18-20% At Acquisition Today Goal Recent Acquisitions PolyOne Corporation 27 Average Company Size # of Possibilities Rationale $200M • • • S T R O N G P I P E L I N E D R I V E N B Y F R A G M E N T E D M A R K E T $0 $150 $300 $450 $600 $750 $900 2011 2012 2013 2014 2015 2016 2017 2018 $890M R E T U R N I N G C A S H T O S H A R E H O L D E R S O V E R $ 1 . 2 B I L L I O N S I N C E 2 0 1 1 PolyOne Corporation $0.16 $0.20 $0.24 $0.32 $0.40 $0.48 $0.54 $0.70 $0.78 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 3-Year Dividend Plan Cumulative Share Repurchases Increasing Annual Dividend 28 6.3% 14.1% 16-17% 2009 2018 Updated Expectations R O I C D R I V E S S H A R E H O L D E R R E T U R N PolyOne Corporation 29 PolyOne Corporation 30 W H Y I N V E S T I N P O L Y O N E ? T H E N E W P O L Y O N E : A S P E C I A L T Y G R O W T H C O M P A N Y       SERVICE: T H E T I M E L E S S D I F F E R E N T I A T O R PolyOne Corporation 31 T A L E N T D E V E L O P M E N T PolyOne Corporation 32 Leadership Program Participants 2012 2013 2014 2015 47 0 86 2016 2018 125 169 315 Campus Hires 2008 2011 2014 2017 0 25 90 47 PolyOne LSS Blackbelts 2008 2011 2014 2018 0 67 220 147 2018 141 A U N I Q U E C U S T O M E R E X P E R I E N C E Industrial Design IQ DESIGN LABS PolyOne Corporation 33 Material & Color Expertise Manufacturing Expertise 3 14 2014 2018 Industrial designers $0 $10M 2014 2018 $4M $80M 2014 2018 Opportunity funnel New business revenue LSS CUSTOMER FIRST PolyOne Corporation 34 Customer Projects 2014 2018 2 104 3 D P R I N T I N G B R I N G I N G N E W I D E A S T O L I F E PolyOne Corporation 35 PolyOne Corporation 36 M O N T H M O N T H M O N T H M O N T H M O N T H M O N T H 99.9% up to 24 weeks 6 hours C O L O R M A T R I X S E L E C T ™ I N N O V A T I N G W I T H P O L Y O N E PolyOne Corporation 37 SEGMENT HIGHLIGHTS C O L O R , A D D I T I V E S & I N K S EN D M A R K ET S & S O L U T I O N S PolyOne Corporation 38 Solid Colorants Performance Additives Screen Printing Inks Liquid Colorants Packaging 28% Industrial 14% Textiles 13% Wire & Cable 11% Building & Construction 10% Transportation 8% Consumer 8% Healthcare 5% Appliances 2% Electrical & Electronic 1% Operating Income & MarginRevenue by Region C O L O R , A D D I T I V E S & I N K S 2 0 1 8 R E V E N U E | O V ER $ 1 B I L L I O N $4 $25 $104 $159 0.9% 5.5% 12.2% 15.1% 2005 2009 2013 2018 PolyOne Corporation 39 Europe 35% United States 45% Asia 14% Canada 1% Mexico 3% South America 2% S P E C I A L T Y E N G I N E E R E D M A T E R I A L S EN D M A R K ET S & S O L U T I O N S PolyOne Corporation 40 Engineered Formulations Advanced Composites Thermoplastic Elastomers Consumer 21% Transportation 18% Wire & Cable 13%Healthcare 9% Industrial 9% Packaging 7% Appliance 3% Building & Construction 4% Electrical & Electronics 16% S P E C I A L T Y E N G I N E E R E D M A T E R I A L S Revenue by Region Operating Income & Margin 2 0 1 8 R EV EN U E | $ 6 4 6 M I L L I O N PolyOne Corporation 41 $21 $57 $72 0.1% 5.1% 9.3% 11.2% 2005 2009 2013 2018 Europe 28% United States 46% Asia 24% Canada 2% P E R F O R M A N C E P R O D U C T S & S O L U T I O N S EN D M A R K ET S & S O L U T I O N S PolyOne Corporation 42 Specialty Vinyl Solutions Healthcare Formulations Smart Device Materials Flame Retardant Polymers Building & Construction 28% Industrial 18% Transportation 17% Wire & Cable 16%Consumer 7% Appliance 6% Packaging 4% Electrical & Electronics 4% Asia 2% United States 78% Mexico 5% Canada 15% P E R F O R M A N C E P R O D U C T S & S O L U T I O N S Operating Income & MarginRevenue by Region 2 0 1 8 R EV EN U E | $ 7 3 6 M I L L I O N $40 $24 $56 $74 4.6% 3.6% 7.2% 10.0% 2005 2009 2013 2018 PolyOne Corporation 43 D I S T R I B U T I O N EN D M A R K ET S & S U P P L I ER S PolyOne Corporation 44 Healthcare 27% Transportation 22% Industrial 18% Consumer 12% Appliance 6% Electrical & Electronics 5% Building & Construction 5% Packaging 3% Wire & Cable 2% $20 $25 $63 $71 2.9% 4.0% 5.9% 5.6% 2005 2009 2013 2018 Operating Income & Margin2018 Revenue | $1.3 Billion http://www.polyone.com/Pages/VariationRoot.aspx O V E R V I E W O F R A W M A T E R I A L P U R C H A S E S PolyOne Corporation 45 T A R G E T E N D M A R K E T S & A P P L I C A T I O N E X A M P L E S PolyOne Corporation 46 Thermally Conductive Technologies Chemical Resistant Technologies Polymer Colorants Elastomeric Grips and Handles Structural Composites Antimicrobial Technologies Anti-Counterfeiting Technologies Target End Markets… Healthcare Catheter Technologies Under-hood Components Target End Markets… Automotive Interior Structural Components Sound & Vibration Management Roof Systems Air Management Electronics and Cameras Lighting Exterior / Interior Trim Braces & Brackets Fasteners Seals & Flaps Target End Markets… Consumer Thermally Conductive Components Polymer Colorants Elastomeric Grips and Handles Structural Composite Components Oxygen Scavenger Technologies Laser Marking Additives Antistatic Technologies UV Light Barrier Technologies Cap & Closure Colorants Process Optimization Technologies Antioxidant Technologies Density Modified Technologies Target End Markets… Packaging    Luxury Packaging GravitechTM Density Modified Polymers    Optimize Color Usage OnColorTM Super Concentrates    Combat Bacteria Formation WithStandTM Antimicrobial Technology    Medical Device Housings Chemically Resistant Engineered Polymers Color & Design Services      Outdoor Applications            Fiber Colorants Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to PolyOne shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to PolyOne shareholders, excluding special items, to assess performance and facilitate comparability of results.

Purchase price multiple rapidly declining on strength of business and synergy capture 14 $133 $205 2019PF 2021 14 Clariant Color EBITDA Growth Purchase Price Multiple 10.8x 7.0x 6.1x 2019PF 2021 2021 w/ Full Synergies (1) (1) 11.9% 16.2% 2019PF 2021 EBITDA Margins (1) CLARIANT COLOR: TRANSFORMATIONAL ACQUISITION ($ in millions) (1) Financial information is pro forma to include a full year of Clariant Color business ($ millions) Initial Synergy Estimate 2021 Synergy Realization Total Synergies Expected Administrative $ 18 $ 29 $ 40 Sourcing 24 20 24 Operational 18 5 21 Total Synergies $ 60 $ 54 $ 85 CLARIANT COLOR INTEGRATION & COST SYNERGIES UPDATE 15 • Integration going extremely well: synergy target increased to $85 million at December 9th Investor Day • Relentless focus on guiding principles of safety first, employee collaboration and exceeding customer expectations • Future revenue synergies are not part of these estimates and represent additional growth over the long term SUSTAINABILITY FOR A BETTER TOMORROW 16 • Revenue from sustainable solutions grew 16% in 2021 and expected to grow 8-12% in 2022 as our innovation efforts and collaboration with customers accelerates • Investments centered around innovation and global sustainability megatrends o Enabling a circular economy – Technologies that allow for increased use of post-consumer recycled (PCR) material and improve recyclability of plastics o Light-weighting – Composites and CAI applications to reduce weight and material requirements, which minimize energy and carbon emissions o Eco-Conscious – Health and human safety applications as well as Avient’s alternative materials to replace lead, PVC, halogens, BPA and other less eco-friendly options 16 *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 16 2016 2017 2018 2019 2020PF** 2021 $405M $455M $550M $790M Revenue From Sustainable Solutions* 2016-2021 $915M $340M PEOPLE C U L T U R E I S E V E R Y T H I N G Community Service 7x Safer than Industry Average World-Class Safety Leadership Development Over $16 million raised since 2010 Diversity & Inclusion 17 Q4 2020 $997 $80 Sustainable Solutions 23 12% 8 Healthcare 53 43% 9 Composites 7 22% 2 Growth in Asia / LATAM 14 10% 3 Other 118 23% 2 Sub-total $1,212 22% $104 Wage Inflation and Overtime (11) Other Supply Chain Costs (4) Synergies 9 Incentives, FX, Other Employee Costs (10) (13) Q4 2021 $1,202 21% $85 Q4 2021 SALES AND OPERATING INCOME (TOTAL COMPANY) 18 Sales Growth Rate Adjusted Operating Income$ millions Adjusted EBITDA Q4 EBITDA BRIDGE 19 Price increases more than offsets raw material and supply chain impacts Q4 2020 $ 118 Demand - $ millions CAI: Price / Mix 62 Inflation (45) SEM: Price / Mix 25 Inflation (20) Distribution: Price / Mix 114 Inflation (109) Net Price Benefit 27 Wage Inflation and Overtime (11) Other Supply Chain Costs (4) Synergies 9 Incentives, FX, Other Employee Costs (13) Q4 2021 $ 126    Transportation (5)$ Outdoor High Performance (3) Other 8 Total Demand - Q4 2021 SEGMENT PERFORMANCE 20 CAI $526 $581 Sales ($ in millions) SEM Distribution $58 $61 Operating Income + 11% + 6% $305 $425 Sales $18 $22 Operating Income + 39% + 22% (1) $191 $228 Sales $30 $29 Operating Income + 19% - 3% 2022 O U TLO O K REVENUE GROWTH DRIVERS Growth Drivers Long-Term Growth Rate 2022E Growth Rate Sustainable Solutions 8–12% 12% Healthcare 8–10% 10% Composites 10% 3% Asia / LATAM 5% 6% Other (GDP growth) 2–3% 2–3% Avient 6.5% 6% 22 Excluding Outdoor High Performance 13% (7.5% excl. FX) 2022 GROWTH PROJECTIONS (TOTAL COMPANY) 23 $3.05 $3.50 2021 2022E Full Year – Adjusted EPS + 15% (+ 17% excluding FX) $0.89 $0.95 2021 2022E Q1 – Adjusted EPS + 7% (+ 10% excluding FX) ($ millions) Q1 Full Year Q1 Full Year 2021 - Actual 1,162$ 4,819$ 123$ 429$ Sustainable Solutions 27 110 12 44 Healthcare 15 66 4 13 Composites (excl.Outdoor High Performance) 11 29 5 13 Outdoor High Performance Applications (7) (20) (4) (10) Growth in Asia / LATAM 10 51 3 11 Other 57 115 9 12 Sub-total 1,275$ 5,170$ 152$ 512$ Wage Inflation and Overtime (12) (18) Other Supply Chain Costs (4) (7) FX Impact (25) (70) (4) (8) Synergies 4 15 Travel, Other Employee Costs (1) (4) 2022 - Estimated 1,250$ 5,100$ 135$ 490$ Sales Adjusted Operating Income 2022 SALES AND OI – Q1 AND FULL YEAR (TOTAL COMPANY) 24 ($ millions) 2021 2022E Cash Flow from Operating Activities 234$ 385$ Less: Run-Rate CapEx (86) (90) CapEx for Clariant Integration (15) (20) CapEx for IT System Upgrade - (25) Total CapEx (101) (135) Free Cash Flow 133$ 250$ Adjusted EBITDA 581$ 635$ Net Debt / Adjusted EBITDA 2.2x 1.8x 25 CASH FLOW / LEVERAGE 26 • Record results – highest level of sales ($4.8B) and earnings ($3.05 adjusted EPS) in company history • Successful Clariant Color integration – net debt to adjusted EBITDA reduced to 2.2x, one-year ahead of schedule • Recognized as one of America’s Most Responsible Companies by Newsweek • Earned 3rd consecutive Great Place to Work certification 2021 HIGHLIGHTS 27 • 15% adjusted EPS growth to $3.50, led by growth in sustainable solutions and increased synergy realization • Continued strong synergy capture from the Clariant Color integration: $75M anticipated run-rate synergies by the end of 2022 • Adjusted EBITDA of $635M represents 9% growth above 2021 – 11% excluding the impact of foreign currencies • Deleveraged to 1.8x net debt to adjusted EBITDA by the end of 2022 2022 SUMMARY PEER COMPARISONS 29 As a specialty formulator, we don’t require significant capital investment, as compared to the base resin raw material suppliers we purchase from. APPENDIX Performance Additives 15% Pigments 13% TiO2 11% Dyestuffs 3%Polyethylene 12% Nylon 6% Polypropylene 5% Other Raw Materials 30% Styrenic Block Copolymer 5% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 35 • Significant raw material price inflation and tight inventory continued in Q4 2021 o For the full year, the average cost of hydrocarbon based materials was up 50% in 2021 o For the full year, the average cost of non- hydrocarbon based materials was up 12% in 2021 • Additionally, we continued to experience other supply chain challenges during Q4 related to raw material spot purchases, freight constraints and productivity loss as a result of these shortages Annual Purchases RAW MATERIAL AND SUPPLY CHAIN UPDATE Based on 2021 purchases, excludes Distribution business SEGMENT DATA U.S. & Canada 50% EMEA 25% Asia 16% Latin America 9% 2021 SEGMENT, END MARKET AND GEOGRAPHY 37 GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 23% Packaging 19% Industrial 16% Building and Construction 10% Telecommunications 4% Energy 2% END MARKET REVENUE (1) Total company sales and adjusted EBITDA of $4,819M and $581M, respectively, include intercompany sales eliminations and corporate costs $2,402M $409M $919M $164M $1,631M $94M Sales EBITDA Distribution Specialty Engineered Materials Color Additives and Inks $581M$4,819M (1) Transportation 11% Healthcare 15% Packaging 34% Consumer 21% Healthcare 8% Industrial 16% Building & Construction 10% Transportation 9% Energy 1% Telecommunications 1% C O L O R , A D D I T I V E S & I N K S 2021 REVENUE | $2 .4 BILL ION US & Canada 32% EMEA 40% Asia 21% Latin America 7% END MARKET REGION 38 All charts reflect 2021 financials S P E C I A LT Y E N G I N E E R E D M AT E R I A L S Consumer 27% Healthcare 10% Packaging 7% Telecommunications 16% Transportation 11% Industrial 11% Building & Construction 11% Energy 7% 2021 REVENUE | $919 MILLION END MARKET US & Canada 55% EMEA 25% Asia 20% REGION 39 All charts reflect 2021 financials DI S TR IBU T I ON Healthcare 26% Consumer 23% Packaging 5% Industrial 20% Transportation 16% Building and Construction 8% Energy 1% Telecommunications 1% US & Canada 80% Asia 3% Latin America 17% END MARKET REGION K E Y S U P P L I ER S 2021 REVENUE | $1 .6 B ILL ION 40 All charts reflect 2021 financials TOTA L C O M PA N Y R E G I O N A L S A L E S BY END MARKET Packaging 30% Consumer 26%Healthcare 13% Industrial 14% Building & Construction 5% Telecommunications 2% Energy 2% Asia (16% of sales) Transportation 8% Packaging 32% Consumer 13% Healthcare 5% Industrial 17% Building & Construction 12% Telecommunications 5% Energy 4% EMEA (25% of sales) Transportation 12% 41 Consumer 25% Healthcare 19% Packaging 10% Industrial 17% Building & Construction 10% Telecommunications 4% Energy 2% US & Canada (50% of sales) Transportation 13% Packaging 38% Consumer 33% Healthcare 8% Industrial 10% Building & Construction 5% Telecommunications 1% LATAM (9% of sales) Transportation 5% All charts reflect 2021 financials

Purchase price multiple rapidly declining on strength of business and synergy capture (1) (1) (1) (1) (1) (1) (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition ($ in millions) 12 SEM CAI Avient • Composites and Outdoor High Performance applications drove positive mix within SEM • Clariant Masterbatch synergy realization under way and expected to drive further margin expansion in 2021 • Portfolio transformation to high growth end markets with focus on sustainable solutions megatrend (1) EBITDA MARGIN EXPANSION Distribution 15.2% 17.6% 11.1% 12.1% 6.4% 6.3% 15.2% 16.2% (2) (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition (2) Total company reflects adjusted EBITDA margins SPOTLIGHT: COMPOSITES 13 • SEM delivers a record year in 2020 – 13% operating income growth and over 200 bps in margin expansion year-over-year • Prior investments in composites platform and outdoor high performance applications paying off, resulting in substantial growth over the last two years SEM Operating Income (OI % of Sales) ($ in millions) $(0.1) $(1.0) $2.2 $19.1 $26.8 2016 2017 2018 2019 2020 Composites Performance (Operating Income) $83.7 $94.4 2019 2020 (11.2%) (13.3%) 0.1 0.1 0.2 0.5 0.6 0.7 0.8 0.9 0.9 1.0 11 12 13 14 15 16 17 18 19 20 $19 $160 $338 2011 2019 2020 0.16 0.20 0.26 0.34 0.42 0.50 0.58 0.72 0.79 0.81 0.85 11 12 13 14 15 16 17 18 19 20 21E FREE CASH FLOW AND CAPITAL ALLOCATION 14 Free Cash Flow Dividends Share Repurchases Deleveraging 3.5x 2.7x 2019PF 2020PF Growing Dividend Cumulative Buybacks Net Leverage $B n $ p e r sh ar e Cash Generation (1) (1) ~$1Bn REPURCHASED OVER LAST 10 YEARS ~$350MM PAID OVER LAST 10 YEARS ~$338MM 2.7x NET LEVERAGE (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition GREAT PLACE TO WORK! 15 2021 O U TLO O K A S P R O V I D E D O N F E B R U A R Y 9 , 2 0 2 1 W E B C A S T Synergies ($ millions) Initial Three-Year Estimate Revised Three-Year Estimate 2021 Expected Realization Administrative $ 18 $ 20 $ 15 Sourcing 24 30 15 Operational 18 25 5 Total Synergies $ 60 $ 75 $ 35 CLARIANT INTEGRATION & COST SYNERGIES UPDATE 17 • Integration going extremely well: synergy target increased from $60 million to $75 million • $5 million of synergies in 2020 and expect to realize $35 million in 2021 • Relentless focus on guiding principles of safety first, employee collaboration and exceeding customer expectations • Future revenue synergies are not part of these estimates and represent additional growth over the long term $86 $103 2020PF 2021E $0.53 $0.70 2020PF 2021E ORGANIC GROWTH PROJECTIONS – Q1 (TOTAL COMPANY) 18 Sales Adjusted Operating Income $991 $1,090 2020PF 2021E + 10% Adjusted EPS + 20% + 32% (in millions) (in millions) (1) (1) (1) (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition $308 $360 2020PF 2021E $1.93 $2.40 2020PF 2021E ORGANIC GROWTH PROJECTIONS – FULL YEAR (TOTAL COMPANY) 19 Sales Adjusted Operating Income $3,783 $4,100 2020PF 2021E + 8% Adjusted EPS + 17% + 24% (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition (1) (1) (in millions) (in millions) (1) 2020 Pro forma $3,783 $308 Sustainable Solutions 60 11% 24 Healthcare 60 11% 18 Composites 20 10% 10 Growth in Emerging Regions 50 7% 11 Other (GDP growth) 82 5% 11 Sub-total $4,055 7% $382 COVID Response Applications (25) - (11) Outdoor High Performance Applications (15) - (7) Asia Payroll Tax Subsidy (COVID) - - (4) FX Impact 85 - 7 Synergies - - 30 Incentives, Travel, Other Employee Costs - - (37) 2021 Estimated $4,100 8% $360 2021 ORGANIC SALES AND OPERATING INCOME (TOTAL COMPANY) 20 (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition (2) COVID Response Applications: facemasks, personal protective equipment Sales Growth Rate Adjusted Operating Income$ millions (1) (2) CASH FLOW AND LEVERAGE 21 • Asset light business generates significant free cash flow • Cash generation in 2021 partially offset by restructuring activities to capture synergies associated with the Clariant Masterbatch acquisition • Cash flow deployed to M&A, opportunistic share repurchases and balance sheet / leverage reduction 3.5x 2.7x 2.1x 2019PF 2020PF 2021E Net Debt / Adjusted EBITDA (1) (1) (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition ($ millions) 2020 2021E Adjusted EBITDA 382 510 Working Capital: Source / (Use) 116 (30) Cash Taxes (40) (53) Interest Paid (67) (76) CapEx (62) (75) CapEx for Synergy Capture (2) (20) Restructuring for Synergy Capture (11) (25) Other 22 19 Free Cash Flow 338 250 22 • 8% increase in sales drives 24% increase in adjusted EPS to $2.40 ($2.70 excluding step-up depreciation and amortization) as a result of continued growth in sustainable solutions and synergy capture • Clariant synergy capture ahead of schedule: $35M of savings planned from Clariant Masterbatch acquisition • Adjusted EBITDA of $510M – highest level in company history • Deleveraging ahead of schedule – 2.1x net debt to adjusted EBITDA by the end of 2021 2021 PROJECTIONS PEER COMPARISONS 23 As a specialty formulator, we don’t require significant capital investment, as compared to the base resin raw material suppliers we purchase from. SEGMENT HIGHLIGHTS U.S. & Canada 50% EMEA 26% Asia 16% Latin America 8% 2020 SEGMENT, END MARKET AND GEOGRAPHY 29 GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 23% Packaging 21%Industrial 15% Wire & Cable 6% Building & Construction 6% Electrical & Electronics 4% END MARKET REVENUE Transportation 10% Healthcare 15% All data reflects 2020 Pro forma for acquisition of the Clariant Masterbatch business. (1) The total company sales and EBITDA of $3,783M and $457M, respectively, include intercompany sales eliminations and corporate costs $2,043M $331M $709M $124M $1,110M $70M Sales EBITDA Distribution Specialty Engineered Materials Color Additives and Inks $457M$3,783M (1) Packaging 35% Consumer 23% Healthcare 8% Industrial 14% Building & Construction 8% Transportation 7% Wire & Cable 3% Electrical & Electronics 2% C O L O R , A D D I T I V E S & I N K S 2020 PF REVENUE | $2 .0 BILLION US & Canada 31% EMEA 40% Asia 22% Latin America 7% END MARKET REGION 30 2020 figures Pro forma for acquisition of the Clariant Masterbatch business S P E C I A LT Y E N G I N E E R E D M AT E R I A L S Consumer 24% Healthcare 10% Packaging 6% Wire & Cable(1) 24% Electrical & Electronics 13% Transportation 11% Industrial 10% Building & Construction 2% 2020 REVENUE | $709 MILLION END MARKET US & Canada 58% EMEA 23% Asia 19% REGION 31 (1) Approximately 50% of Wire and Cable sales are associated with Fiber Optic Cabling DI S TR IBU T I ON 2020 REVENUE | $1 .1 B ILL ION Healthcare 29% Consumer 25% Packaging 2% Industrial 20% Transportation 14% Electrical & Electronics 5% Building & Construction 4% Wire & Cable 1% US & Canada 82% Asia 3% Latin America 15% END MARKET REGION K E Y S U P P L I ER S 32 AMERICAS EMEA ASIA Consumer 26% Healthcare 19% Packaging 13% Industrial 16% Wire & Cable 7% Building & Construction 5% Electrical & Electronics 4% Packaging 34% Consumer 16%Healthcare 5% Industrial 17% Wire & Cable 10% Building & Construction 8% Electrical & Electronics 3% Packaging 32% Consumer 27% Healthcare 12% Industrial 6% Wire & Cable 6% Building & Construction 4% Electrical & Electronics 9% Transportation 10% Transportation 7% Transportation 4% 2020 figures Pro forma for acquisition of the Clariant Masterbatch business TOTA L C O M PA N Y R E G I O N A L S A L E S BY END MARKET (58% of sales) (26% of sales) (16% of sales) 33

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 Y 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 Transportation 17% Industrial 15% Consumer 12% Packaging 11% Wire & Cable 10% Appliance 5% United States 57% Europe 16% Asia 10% Latin America 10% Canada 7% Distribution 35% Performance Products & Solutions 19% Specialty Engineered Materials 17% Color Additives & Inks 29% Segment End Market Geography Building & Construction 11% Electrical & Electronics 6% Healthcare 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 2006 2018 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 margins Lean Six Sigma commercial excellence 531 710 130 164 504 663 2014 2018 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 4 24 2014 2018 Inside sellers $11M $109M 2014 2018 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 15% Innovation comes from Research & Development Spend Vitality Index 12% 35% 2006 2018 $20 $56 2006 2018 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 4 4 3 2 28 0 5 10 7 2 5 5 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 $100M • • • • • • • • • • • • • • • • • • • Customer Value Fiber-Line Fiber Processing Capabilities Polymer Formulation Capabilities P O L Y O N E A P P L I C A T I O N S I N F I B E R O P T I C C A B L E S PolyOne Corporation 21 • • • • • • • • • F I B E R O P T I C A L G R O W T H D R I V E R S PolyOne Corporation 22 5G Networks      10x 8x 5G vs. 4G PolyOne Corporation 23 Safety Technology Geography Service FinancialPeople 8-10% with ability to double I N V E S T - T O - G R O W M & A S T R A T E G Y PolyOne Corporation 24 Capture sourcing synergies Cross-sell & blend technology 8-10% operating margins I N V E S T - T O - G R O W M & A P L A Y B O O K Protect customers Retain employees Implement LSS to drive efficiency improvements Innovate with combined portfolio Safety First! Leverage PolyOne’s global reach Phase 1 Phase 2 Phase 3 18-20% operating margins Invest in commercial resources I N V E S T - T O - G R O W P R O O F O F P E R F O R M A N C E PolyOne Corporation 25 Commercial Resources Operating Income ($ in millions) Operating Margins 243 340 At Acquisition Today $36 $96 At Acquisition Today 11% 20% At Acquisition Today Established Acquisitions (> 7 years) + 40% + 165% + 900 bps I N V E S T - T O - G R O W D R I V I N G T H E F U T U R E PolyOne Corporation 26 Commercial Resources Operating Income ($ in millions) Operating Margins 138 181 251 At Acquisition Today Goal $23 $25 $70 At Acquisition Today Goal 7% 8% 18-20% At Acquisition Today Goal Recent Acquisitions PolyOne Corporation 27 Average Company Size # of Possibilities Rationale $200M • • • S T R O N G P I P E L I N E D R I V E N B Y F R A G M E N T E D M A R K E T $0 $150 $300 $450 $600 $750 $900 2011 2012 2013 2014 2015 2016 2017 2018 $890M R E T U R N I N G C A S H T O S H A R E H O L D E R S O V E R $ 1 . 2 B I L L I O N S I N C E 2 0 1 1 PolyOne Corporation $0.16 $0.20 $0.24 $0.32 $0.40 $0.48 $0.54 $0.70 $0.78 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 3-Year Dividend Plan Cumulative Share Repurchases Increasing Annual Dividend 28 6.3% 14.1% 16-17% 2009 2018 Updated Expectations R O I C D R I V E S S H A R E H O L D E R R E T U R N PolyOne Corporation 29 PolyOne Corporation 30 W H Y I N V E S T I N P O L Y O N E ? T H E N E W P O L Y O N E : A S P E C I A L T Y G R O W T H C O M P A N Y       SERVICE: T H E T I M E L E S S D I F F E R E N T I A T O R PolyOne Corporation 31 T A L E N T D E V E L O P M E N T PolyOne Corporation 32 Leadership Program Participants 2012 2013 2014 2015 47 0 86 2016 2018 125 169 315 Campus Hires 2008 2011 2014 2017 0 25 90 47 PolyOne LSS Blackbelts 2008 2011 2014 2018 0 67 220 147 2018 141 A U N I Q U E C U S T O M E R E X P E R I E N C E Industrial Design IQ DESIGN LABS PolyOne Corporation 33 Material & Color Expertise Manufacturing Expertise 3 14 2014 2018 Industrial designers $0 $10M 2014 2018 $4M $80M 2014 2018 Opportunity funnel New business revenue LSS CUSTOMER FIRST PolyOne Corporation 34 Customer Projects 2014 2018 2 104 3 D P R I N T I N G B R I N G I N G N E W I D E A S T O L I F E PolyOne Corporation 35 PolyOne Corporation 36 M O N T H M O N T H M O N T H M O N T H M O N T H M O N T H 99.9% up to 24 weeks 6 hours C O L O R M A T R I X S E L E C T ™ I N N O V A T I N G W I T H P O L Y O N E PolyOne Corporation 37 SEGMENT HIGHLIGHTS C O L O R , A D D I T I V E S & I N K S EN D M A R K ET S & S O L U T I O N S PolyOne Corporation 38 Solid Colorants Performance Additives Screen Printing Inks Liquid Colorants Packaging 28% Industrial 14% Textiles 13% Wire & Cable 11% Building & Construction 10% Transportation 8% Consumer 8% Healthcare 5% Appliances 2% Electrical & Electronic 1% Operating Income & MarginRevenue by Region C O L O R , A D D I T I V E S & I N K S 2 0 1 8 R E V E N U E | O V ER $ 1 B I L L I O N $4 $25 $104 $159 0.9% 5.5% 12.2% 15.1% 2005 2009 2013 2018 PolyOne Corporation 39 Europe 35% United States 45% Asia 14% Canada 1% Mexico 3% South America 2% S P E C I A L T Y E N G I N E E R E D M A T E R I A L S EN D M A R K ET S & S O L U T I O N S PolyOne Corporation 40 Engineered Formulations Advanced Composites Thermoplastic Elastomers Consumer 21% Transportation 18% Wire & Cable 13%Healthcare 9% Industrial 9% Packaging 7% Appliance 3% Building & Construction 4% Electrical & Electronics 16% S P E C I A L T Y E N G I N E E R E D M A T E R I A L S Revenue by Region Operating Income & Margin 2 0 1 8 R EV EN U E | $ 6 4 6 M I L L I O N PolyOne Corporation 41 $21 $57 $72 0.1% 5.1% 9.3% 11.2% 2005 2009 2013 2018 Europe 28% United States 46% Asia 24% Canada 2% P E R F O R M A N C E P R O D U C T S & S O L U T I O N S EN D M A R K ET S & S O L U T I O N S PolyOne Corporation 42 Specialty Vinyl Solutions Healthcare Formulations Smart Device Materials Flame Retardant Polymers Building & Construction 28% Industrial 18% Transportation 17% Wire & Cable 16%Consumer 7% Appliance 6% Packaging 4% Electrical & Electronics 4% Asia 2% United States 78% Mexico 5% Canada 15% P E R F O R M A N C E P R O D U C T S & S O L U T I O N S Operating Income & MarginRevenue by Region 2 0 1 8 R EV EN U E | $ 7 3 6 M I L L I O N $40 $24 $56 $74 4.6% 3.6% 7.2% 10.0% 2005 2009 2013 2018 PolyOne Corporation 43 D I S T R I B U T I O N EN D M A R K ET S & S U P P L I ER S PolyOne Corporation 44 Healthcare 27% Transportation 22% Industrial 18% Consumer 12% Appliance 6% Electrical & Electronics 5% Building & Construction 5% Packaging 3% Wire & Cable 2% $20 $25 $63 $71 2.9% 4.0% 5.9% 5.6% 2005 2009 2013 2018 Operating Income & Margin2018 Revenue | $1.3 Billion http://www.polyone.com/Pages/VariationRoot.aspx O V E R V I E W O F R A W M A T E R I A L P U R C H A S E S PolyOne Corporation 45 T A R G E T E N D M A R K E T S & A P P L I C A T I O N E X A M P L E S PolyOne Corporation 46 Thermally Conductive Technologies Chemical Resistant Technologies Polymer Colorants Elastomeric Grips and Handles Structural Composites Antimicrobial Technologies Anti-Counterfeiting Technologies Target End Markets… Healthcare Catheter Technologies Under-hood Components Target End Markets… Automotive Interior Structural Components Sound & Vibration Management Roof Systems Air Management Electronics and Cameras Lighting Exterior / Interior Trim Braces & Brackets Fasteners Seals & Flaps Target End Markets… Consumer Thermally Conductive Components Polymer Colorants Elastomeric Grips and Handles Structural Composite Components Oxygen Scavenger Technologies Laser Marking Additives Antistatic Technologies UV Light Barrier Technologies Cap & Closure Colorants Process Optimization Technologies Antioxidant Technologies Density Modified Technologies Target End Markets… Packaging    Luxury Packaging GravitechTM Density Modified Polymers    Optimize Color Usage OnColorTM Super Concentrates    Combat Bacteria Formation WithStandTM Antimicrobial Technology    Medical Device Housings Chemically Resistant Engineered Polymers Color & Design Services      Outdoor Applications            Fiber Colorants Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to PolyOne shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to PolyOne shareholders, excluding special items, to assess performance and facilitate comparability of results.

Q 1 2 0 2 3 -8% +6% -1% Flat 14 US & Canada Latin America EMEA Asia Total Avient -2.6% 2023 G U IDA N CE $128 $525 Q3 FY $0.56 $2.40 Q3 FY 2023 GUIDANCE 16 $800 $3,280 Q3 FY Sales Adjusted EBITDA Adjusted EPS (in millions) (in millions) 17 • Focused on working capital management, restructuring actions to streamline operations • IT investment to further integrate acquired businesses and capture operational efficiencies • Preserve Free Cash Flow to maintain net leverage CASH FLOW / LEVERAGE ($ millions) 2023E Cash Flow from Operating Activities 320$ Less: CapEx (140) Free Cash Flow 180$ Adjusted EBITDA 525$ Net Debt / Adjusted EBITDA 3.0x SUSTAINABILITY AS A GROWTH DRIVER 18 LONG-TERM REVENUE GROWTH DRIVERS Revenue From Sustainable Solutions* 2016-2022 $340M $405M $455M $550M $790M $915M 2016 2017 2018 2019 2020PF** 2021 2022PF*** $1,175M *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 ***2022 is Pro Forma for the acquisition of Avient Protective Materials and the divestiture of Distribution 60%+ Key Growth Drivers Sustainable Solutions Composites, Healthcare, Asia / LATAM Overlap Other (GDP Growth) Total Company Revenue SUSTAINABILITY REPORT 2022 • Provides progress on 2030 goals • Reaffirms commitment to U.N. Global Compact • Highlights ESG Performance, including ratings, awards, and certifications • Features increased carbon emissions disclosures, including Climate Change Scenario Analysis and Scope 3 emissions data • Outlines Sustainable Supplier Program, designed to enable supplier evaluation & collaboration • Reflects Great Place To Work® culture focused on safety, employee engagement and advancing diversity, equity and inclusion 2022 SUSTAINABILITY REPORT 19 Avient Confidential 20 • Virtual presentation to be held September 20, 2023 • Leadership will be conducting an investor-focused presentation around our sustainable solutions portfolio • Deep dive into how we enable customers to achieve their sustainability goals SUSTAINABILITY DAY 20 …are Growing at Twice the Rate as Conventional Products Sustainably-Branded Products… STAKEHOLDER INFLUENCE DRIVES DEMAND Consumers Are demanding recyclability and eco- conscious products Governments Are mandating changes through legislation, taxes, and regional accords Brand Owners Have committed to ambitious goals to achieve sustainability metrics 21 AP P EN D IX 24 Performance Additives 16% Pigments 12% TiO2 10% Dyestuffs 2% Polyethylene 11% Nylon 6% Polypropylene 5% Styrenic Block Copolymer 5% Other Raw Materials 33% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 2022 pro forma results for the acquisition of Avient Protective Materials RAW MATERIAL BASKET PEER COMPARISONS AVIENT IS ASSET LIGHT Capex / Revenue 2023E (%) Avient Specialty Formulators Other Specialty / Chemical Companies Source: Peer data per Bloomberg as of August 17, 2023 Note: Avient reflects 2023 estimated revenue of $3,280 and estimated run-rate CAPEX of $110M. 26 3 2 3 3 4 4 3 4 5 5 7 7 9 10 A vi en t K W R P P G F U L A V Y R P M F M C H U N C E E C L A S H H X L E M N S C L FREE CASH FLOW CONVERSION Source: Peer data per Bloomberg as of August 17, 2023 Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA. Avient reflects 2023 adjusted EBITDA guidance of $525M and estimated run-rate CAPEX of $110M. 2023E (%) 27 79 89 83 83 78 75 90 81 76 72 68 63 53 11 A vi en t K W R F U L P P G A V Y R P M F M C C E E C L A S H H X L H U N E M N S C L Avient Specialty Formulators Other Specialty / Chemical Companies MULTIPLE EXPANSION Source: Peer data per Bloomberg as of August 17, 2023 Note: Avient reflects 2023 adjusted EBITDA guidance of $525M and closing share price of $37.07.

IATF 16949:2016 The Quality Management System is applicable to: Certificate No: 39032 Effective Date: 14 August 2018 Expiration Date: 13 August 2021 Issue Date: 17 August 2018 IATF No: 0322936 Alex Weisselberg, President MANUFACTURE, DESIGN AND SUPPLY OF PROPRIETARY THERMOPLASTIC COMPOUNDS, INCLUDING THE SUPPLY OF TOLL COMPOUNDING SERVICES (WITH ADDITIONAL FACILITIES LISTED ON ATTACHED ANNEX) Certificate Of Conformance has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: Page 2 of 2 ABS Quality Evaluations PolyOne Corporation IATF 16949:2016 Certificate Of Conformance ANNEX At Below Facilities: Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation.