Rose Vice President, Corporate Communications Avient Corporation +1 440-930-3162 kyle.rose@avient.com mailto:giuseppe.disalvo@avient.com mailto:kyle.rose@avient.com 5 Attachment 1 Avient Corporation Summary of Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended March 31, 2022 2021 Sales $ 1,293.8 $ 1,162.3 Operating Income 128.6 120.4 Net income attributable to Avient shareholders 84.2 79.3 Basic earnings per share attributable to Avient shareholders $ 0.92 $ 0.87 Diluted earnings per share attributable to Avient shareholders $ 0.91 $ 0.86 Senior management uses comparisons of adjusted net income attributable to Avient shareholders and diluted adjusted earnings per share (EPS) attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results. Three Months Ended March 31, 2022 Three Months Ended March 31, 2021 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income attributable to Avient shareholders $ 84.2 $ 0.91 $ 79.3 $ 0.86 Special items, after tax (Attachment 3) 7.2 0.08 2.6 0.03 Adjusted net income / EPS - excluding special items $ 91.4 $ 0.99 $ 81.9 $ 0.89 6 Attachment 2 Avient Corporation Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended March 31, 2022 2021 Sales $ 1,293.8 $ 1,162.3 Cost of sales 1,000.1 859.9 Gross margin 293.7 302.4 Selling and administrative expense 165.1 182.0 Operating income 128.6 120.4 Interest expense, net (16.9) (19.3) Other (expense) income, net (0.6) 1.5 Income before income taxes 111.1 102.6 Income taxes (26.6) (22.9) Net income 84.5 79.7 Net income attributable to noncontrolling interests (0.3) (0.4) Net income attributable to Avient shareholders $ 84.2 $ 79.3 Earnings per share attributable to Avient common shareholders - Basic $ 0.92 $ 0.87 Earnings per share attributable to Avient common shareholders - Diluted $ 0.91 $ 0.86 Cash dividends declared per share of common stock $ 0.2375 $ 0.2125 Weighted-average shares used to compute earnings per common share: Basic 91.5 91.3 Diluted 92.3 92.2 7 Attachment 3 Avient Corporation Summary of Special Items (Unaudited) (In millions, except per share data) Special items (1) Three Months Ended March 31, 2022 2021 Cost of sales: Restructuring costs, including accelerated depreciation and amortization $ (4.4) $ (1.8) Environmental remediation costs (2.0) (0.5) Reimbursement of previously incurred environmental costs 0.6 4.5 Impact on cost of sales (5.8) 2.2 Selling and administrative expense: Restructuring, legal and other 0.9 (1.3) Acquisition related costs (2.9) (3.3) Impact on selling and administrative expense (2.0) (4.6) Impact on operating income (7.8) (2.4) Other income, net 0.1 — Impact on income before income taxes (7.7) (2.4) Income tax benefit on above special items 2.0 0.9 Tax adjustments(2) (1.5) (1.1) Impact of special items on net income attributable to Avient Shareholders $ (7.2) $ (2.6) Diluted earnings per common share impact $ (0.08) $ (0.03) Weighted average shares used to compute adjusted earnings per share: Diluted 92.3 92.2 (1) Special items include charges related to specific strategic initiatives or financial restructuring such as: consolidation of operations; debt extinguishment costs; costs incurred directly in relation to acquisitions or divestitures; employee separation costs resulting from personnel reduction programs, plant realignment costs, executive separation agreements; asset impairments; settlement gains or losses and mark-to- market adjustments associated with actuarial gains and losses on pension and other post-retirement benefit plans; environmental remediation costs, fines, penalties and related insurance recoveries related to facilities no longer owned or closed in prior years; gains and losses on the divestiture of operating businesses, joint ventures and equity investments; gains and losses on facility or property sales or disposals; results of litigation, fines or penalties, where such litigation (or action relating to the fines or penalties) arose prior to the commencement of the performance period; one-time, non-recurring items; and the effect of changes in accounting principles or other such laws or provisions affecting reported results Three Months Ended March 31, 2022 2021 Sales: Color, Additives and Inks $ 649.5 $ 609.3 Specialty Engineered Materials 244.7 216.5 Distribution 432.9 362.7 Corporate and eliminations (33.3) (26.2) Sales $ 1,293.8 $ 1,162.3 Gross margin: Color, Additives and Inks $ 192.1 $ 197.5 Specialty Engineered Materials 69.8 64.7 Distribution 39.3 39.3 Corporate and eliminations (7.5) 0.9 Gross margin $ 293.7 $ 302.4 Selling and administrative expense: Color, Additives and Inks $ 97.6 $ 108.7 Specialty Engineered Materials 30.1 30.5 Distribution 15.1 15.3 Corporate and eliminations 22.3 27.5 Selling and administrative expense $ 165.1 $ 182.0 Operating income: Color, Additives and Inks $ 94.5 $ 88.8 Specialty Engineered Materials 39.7 34.2 Distribution 24.2 24.0 Corporate and eliminations (29.8) (26.6) Operating income $ 128.6 $ 120.4 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 120.5 $ 116.2 Specialty Engineered Materials 47.5 42.0 Distribution 24.4 24.2 Corporate and eliminations (26.0) (24.9) Other income, net (0.6) 1.5 EBITDA $ 165.8 $ 159.0 11 Attachment 7 Avient Corporation Reconciliation of Non-GAAP Financial Measures (Unaudited) (In millions, except per share data) Senior management uses gross margin before special items and operating income before special items to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and how it may serve as a basis for future performance.

DATA STO R AG E U N IT M A NUFAC TUR ER D A T A S T O R A G E C A R R I E R • Excellent dimensional stability • Good mechanical properties with excellent wear resistance • Flame retardant requirement – FRv0 compliance • UL certification • Provided a customized formulation to meet application-specific lubricity, physical and thermal requirements • Delivered on short lead times to help customer manage working capital LubriOne™ CY1000-000/5T FR V0 BLK001 Formulation KEY REQUIREMENTS WHY AVIENT?

LOOK TO US FOR SUPPORT WITH: Testing and Validation Fully accredited, in-house testing capabilities to generate data for insight into material behavior, environmental effects, and more Regulatory Coordination Dedicated product stewardship team assisting with new product approvals to reduce regulatory overhead and minimize risk Application Development Technical Service Technical experts specifically trained to work directly with your team in solving definitive application challenges Field Technical Service Onsite support for tool design, startup, and production optimization to gain manufacturing efficiencies and resolve technical issues Color and Additive Design Services Trend and color insights, and product development assistance to optimize design and gain speed to market Sustainability Innovative materials and solutions to help you meet your sustainability goals Copyright © 2024, Avient Corporation.

The amounts and values for the facility(ies) identified below are accurate, based on reasonable estimates using available data.  The data for the facility(ies) that I represent are hereby submitted to the programs identified below using the Single Window Reporting Application. I also acknowledge that the data will be made public.

Cesa Fiber Additives for Heat Preservation Technical Bulletin_CN2.2-2

Use of Non-GAAP Measures 4POLYONE CORPORATION FORMULATION EXPERTISE SERVICE INNOVATION Expertise in Polymer Materials, Services and Solutions OEMs Brand Owners Processers Assemblers IQ Design Labs InVisiOSM Color Services LSS Customer First Specialty products & services driving customer value What We Do 5POLYONE CORPORATION PolyOne At a Glance 2017 Revenue – $3.2 billion Performance Products & Solutions 21% PolyOne Distribution 34% Specialty Engineered Materials 19% Color Additives & Inks 26% United States 59% Europe 14% Latin America 9% Canada 8% Asia 10% $0.13 $0.68 $0.82 $1.00 $1.31 $1.80 $1.96 $2.06 $2.21 2009 2010 2011 2012 2013 2014 2015 2016* 2017 Transportation 18% Consumer 12% Healthcare 11% Packaging 11% Industrial16% Building & Construction 12% Wire & Cable 9% Electrical & Electronics 6% Appliance 5% *Recast for DSS in discontinued operations 6POLYONE CORPORATION 2% 43% 76% 0% 20% 40% 60% 80% 100% 2005 2010 2017 % o f O pe ra tin g In co m e* *Operating Income excludes corporate charges and special items Specialty OI $5M $87M $280M JV’s Performance Products & Solutions Specialty MixDistribution Mix Shift Highlights Specialty Transformation Distribution and Contract Manufacturing Businesses 7POLYONE CORPORATION Consistently Deliver Double Digit Annual EPS Growth *ROIC is defined as TTM adjusted OI after tax divided by the sum of average debt and equity less cash over a 5 quarter period Proof of Performance 2020 Platinum Vision 20%+ 20%+ 12 - 14% 6.5 – 7.5% 15% 2006 2017 2020 “Where we were” “Where we are” Platinum Vision ROIC* 5.0% 14.0% Operating Income % of Sales Color, Additives & Inks 1.7% 15.5% Specialty Engineered Materials 1.1% 12.5% Performance Products & Solutions 5.5% 10.7% Distribution 2.6% 6.3% 8POLYONE CORPORATION $50 $116 $0 $40 $80 $120 $160 $200 2012 2014 2016 2018 10.8% 11.3% 10.0% 11.0% 12.0% 13.0% 14.0% 15.0% 2012 2014 2016 2017 2020 Platinum Vision *ROIC is defined as TTM adjusted OI after tax divided by the sum of average debt and equity less cash over a 5 quarter period Free Cash Flow and Improving Returns Free Cash Flow (in millions) ROIC* $200 - $220 14.0% $143 12.9% 15.0% 9POLYONE CORPORATION $767M Returning Cash to Shareholders $0 $150 $300 $450 $600 $750 2011 2012 2013 2014 2015 2016 2017  Since 2011, we have returned over $950 million to shareholders $767M Cumulative Share Repurchases (in millions) $0.16 $0.20 $0.24 $0.32 $0.40 $0.48 $0.58 $0.70 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 3-Year Dividend Plan Increasing Annual Dividend 10POLYONE CORPORATION  Expanding our sales, marketing, and technical capabilities  Investing in operational and LSS initiatives  ~60 - 70% of capital expenditures fund growth initiatives Organic Growth Acquisitions Share Repurchases Dividends  Targets that expand our: • Specialty offerings • End market presence • Geographic breadth  Growth synergies  Adjacent material solutions  Repurchased 2.0 million shares in 2017  Repurchased 20.8 million shares since early 2013  6.5 million shares are available for repurchase under the current authorization  Increased annual dividend by 30% to $0.70 per share, representing the eighth consecutive year of dividend growth  Expect to increase annual dividend 60% or more cumulatively over next three years Free Cash Flow and Strong Balance Sheet Fund Investment / Shareholder Return 11POLYONE CORPORATION *Specialty Platform revenue from products introduced in last five years Vitality Index Progression* 12% 38% 2006 2017 Target ≥ 35% Innovation Drives Earnings Growth $20 $52 2006 2017 Research & Development Spend ($ millions) Total Specialty Addressable Market of over $2.6 Billion (10 Projects) (10 Projects) ($500 million) (19 Projects) ($1.4 billion) Innovation Pipeline Potential Frame Opportunity Prototype Scale-up and Test Market Commercial Launch $500 Million $1.4 Billion $700 Million Phase 5Phase 4Phase 3Phase 2Phase 1 Build Business Case 12POLYONE CORPORATION 2017 2021 Key Innovation Growth Platforms Composites Barrier Additive Technology Fiber Colorants Flame Retardant Polymers  Increasing regulatory drive for halogen replacements  $400m addressable market  Drive to prevent oxygen, light and UV rays from affecting contents in PET packaging, extending shelf life  $200m addressable market  60% of world fiber consumption is synthetic, need to simplify manufacturing and eliminate waste  $300m addressable market  Polymer formulation and process engineering create a pipeline for next generation materials  Drive to replace aluminum and steel with plastics without compromising on strength Total Sales ($millions) 2017 2021 2017 2021 2017 2021 13POLYONE CORPORATION  Providing LSS services to small/medium sized customers – have trained over 30 customers in LSS methodology  Providing Industrial design and color services to small/medium sized customers  On time delivery above 95% Strengthening Relationships: Customer First Through World-Class Service 14POLYONE CORPORATION  Addressable market exceeds $40 billion  Strong performance demonstrates that our strategy and execution are working  Megatrends and emerging opportunities align with strengths  Innovation and services provide differentiation, incremental pricing power and competitive advantage  Strategic reinvestment for growth while returning cash to shareholders  Strong and proven management team driving growth and performance Why Invest In PolyOne? The New PolyOne: A Specialty Growth Company Segment Highlights 16POLYONE CORPORATION 1.7% 4.6% 5.1% 5.5% 7.2% 8.1% 9.7% 12.2% 14.7% 16.7% 16.0% 20%+ 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2020 2017 Revenue: $0.9 Billion Key End Markets (% of revenue) United States 46% Europe 31% Asia 15% Latin America 4% South America 2% Canada 2% Platinum Vision Packaging (27%) Industrial (14%) Wire & Cable (10%) Textiles (12%) Transportation (8%) 15.5% Operating Income % of Sales Color, Additives & Inks At a Glance 17POLYONE CORPORATION 1.1% 1.3% 3.4% 5.1% 9.6% 8.0% 8.6% 9.3% 12.1% 14.7% 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2020 Platinum Vision United States 48% Europe 28% Asia 22% Canada 2% Consumer (20%) Transportation (19%) Electrical & Electronics (15%) Wire & Cable (13%) Healthcare (11%) 12.5% 20%+ Key End Markets (% of revenue) 2017 Revenue: $0.6 Billion Operating Income % of Sales 14.3% Specialty Engineered Materials At a Glance 18POLYONE CORPORATION 5.5% 6.9% 3.8% 3.6% 5.5% 4.3% 6.3% 7.2% 7.7% 8.3% 12-14% 10.7% 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2020 11.1% United States 77% Canada 16% Latin America 5% Asia 2% Platinum Vision Building & Construction (30%) Transportation (16%) Wire & Cable (15%) Industrial (18%) Key End Markets (% of revenue) 2017 Revenue: $0.7 Billion Operating Income % of Sales Performance Products & Solutions At a Glance 19POLYONE CORPORATION Transportation 23% Healthcare 22% Industrial 18% Consumer 15% Appliance 7% E & E 6% B & C 4% Packaging 3% W & C 2% 4% 38% 2006 2017 ROIC* 2.6% 3.0% 3.5% 4.6% 5.6% 6.4% 5.9% 6.1% 6.6% 6.5 - 7.5%6.3% 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2020 *After-Tax ROIC 6.4% 2017 Revenue: $1.2 Billion Key Suppliers Operating Income % of Sales 4.0% Platinum Vision Distribution At a Glance http://www.avient.com/Pages/VariationRoot.aspx http://www.avient.com/Pages/VariationRoot.aspx Target End Markets & Application Examples 21POLYONE CORPORATION 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 22POLYONE CORPORATION 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 23POLYONE CORPORATION Target End Markets… Consumer Thermally Conductive Components Polymer Colorants Elastomeric Grips and Handles Structural Composite Components 24POLYONE CORPORATION 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 25POLYONE CORPORATION  Impart weight, sound and metallic finish to caps and closures for cosmetics and spirits applications  Elevate quality and prestige perceptions among high-end consumers  Eliminate time and cost associated with secondary operations and assembly Luxury Packaging GravitechTM Density Modified Polymers 26POLYONE CORPORATION Optimize Color Usage OnColorTM Super Concentrates  Eliminate costs by increasing pigment density  Enhance color performance without altering form and formulation  Increasing design capabilities by reducing weight and layer thickness 27POLYONE CORPORATION Combat Bacteria Formation WithStandTM Antimicrobial Technology  Inhibit microbial growth on polymer surfaces  Enhance value or products and devices  Highly versatile concentrate with the ability to be incorporated into a wide variety of products 28POLYONE CORPORATION Medical Device Housings Chemically Resistant Engineered Polymers  Durable, long-lasting products stand up to the most aggressive disinfectants  Minimize environmental stress cracking and discoloration  One of the broadest medically approved polymer and colorant portfolios 29POLYONE CORPORATION Color & Design Services  Greater control of color development and supply chain  Work across entire design process from concept to commercialization  Inspire creativity in the use of polymer materials, colors, and effects  Innovative brand differentiation  Faster development timelines 30POLYONE CORPORATION Outdoor Applications  Leading provider of high performance specialty materials for the recreational and sports & leisure industry  Well positioned across all segments to address market needs  Metal to Polymer Conversion  Lightweighting  Thermal Management  Impact Performance 31POLYONE CORPORATION  ColorMatrix Fiber Colorant Solutions  Proprietary advanced liquid color formulations and equipment enable greater efficiency and productivity  Eliminates aqueous dyeing and its associated wastewater treatment  Solid Color Concentrates  Extrusion-spun fibers colored via solid masterbatch Fiber Colorants 32POLYONE CORPORATION Smart Home Devices ResilienceTM Vinyl Solutions  High flame retardancy to meet strict UL standards  Greater processing and design flexibility  Specialized additives provide long term color stability  Diffusive lens materials improve light dispersion 1 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 common shareholders, adjusted earnings per share (EPS) attributable to PolyOne common shareholders and adjusted earnings before interest, taxes, depreciation and amortization (EBITDA) to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and that current levels may serve as a base for future performance.

Use of Non-GAAP Measures 4POLYONE CORPORATION INPUTS FORMULATION EXPERTISE SERVICE VALUE Base resins Additives Modifiers Pigments Expertise in Polymer Materials, Services and Solutions OEMs Brand Owners Processers Assemblers InVisiO SM Color Services IQ Design Labs LSS Customer First Specialty products & services What We Do Driving customer value 5POLYONE CORPORATION $0.13 $0.68 $0.82 $1.00 $1.31 $1.80 $1.96 $2.06 2009 2010 2011 2012 2013 2014 2015 2016* *Recast for DSS in discontinued operations PolyOne At a Glance Performance Products & Solutions 22% PolyOne Distribution 34% Specialty Engineered Materials 18% Color Additives and Inks 26% 2016 Revenue by Segment Adjusted Earnings per Share 2016 Revenue by Geography United States 60% Europe 15% Latin America 9% Canada 7% Asia 10% 6POLYONE CORPORATION 2% 43% 76% 0% 20% 40% 60% 80% 100% 2005 2010 3Q 2017 % o f O p e ra ti n g I n c o m e * *Operating Income excludes corporate charges and special items **LTM 3Q 2017 Specialty OI $5M $87M $275M** JV’s Performance Products & Solutions Specialty MixDistribution Mix Shift Highlights Specialty Transformation Distribution and Contract Manufacturing Businesses 7POLYONE CORPORATION 2014 2015 2016 2017 2014 2015 2016 2017 Driving Growth • Refreshed training curriculum for sales force • Upgraded capabilities to generate and capture new business leads • Expanded R&D resources to focus on key platforms 2014 2015 2016 2017 Investment in Commercial Resources Commercial Resource Additions* Total Sales CallsSales Opportunity Funnel (in billions) *Sales, Marketing & Technology headcount 8POLYONE CORPORATION *ROIC is defined as TTM adjusted OI after tax divided by the sum of average debt and equity less cash over a 5 quarter period Proof of Performance & 2020 Platinum Vision 20%+ 20%+ 12 - 14% 6.5 – 7.5% 15% Consistently Deliver Double Digit Annual EPS Growth 2006 YTD 2017 2020 “Where we were” “Where we are” Platinum Vision ROIC* 5.0% 13.8% Operating Income % of Sales Color, Additives & Inks 1.7% 16.4% Specialty Engineered Materials 1.1% 13.1% Performance Products & Solutions 5.5% 11.4% Distribution 2.6% 6.6% 9POLYONE CORPORATION $50 $116 $137 $0 $40 $80 $120 $160 $200 2012 2014 2016 2017 10.8% 11.3% 12.9% 13.8% 10.0% 11.0% 12.0% 13.0% 14.0% 15.0% 2012 2014 2016 3Q 2017 2020 Platinum Vision Free Cash Flow (in millions) ROIC* *ROIC is defined as TTM adjusted OI after tax divided by the sum of average debt and equity less cash over a 5 quarter period Free Cash Flow and Improving Returns 15.0% >$200 10POLYONE CORPORATION $0.16 $0.20 $0.24 $0.32 $0.40 $0.48 $0.54 $0.70 $- $0.10 $0.20 $0.30 $0.40 $0.50 $0.60 $0.70 $0.80 $0.90 $1.00 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 Annual Dividend 7 Consecutive Years of Increased Dividends 3-Year Dividend Plan  Announced 30% increase to dividend in October 2017, reflecting strong and sustainable cash flow as well as confidence in future earnings growth  Expect to increase annual dividend 60% or more cumulatively over next three years 11POLYONE CORPORATION $767M Returning Cash to Shareholders $0 $150 $300 $450 $600 $750 2011 2012 2013 2014 2015 2016 3Q 2017 Cumulative Share Repurchases (in millions)  Since 2011, we have returned over $950 million to shareholders  $192 million returned through dividends  $767 million returned through share repurchases  Have repurchased 20.8 million shares since early 2013 $767M 12POLYONE CORPORATION  Expanding our sales, marketing, and technical capabilities  Investing in operational and LSS initiatives  ~60 - 70% of capital expenditures fund growth initiatives Organic Growth Acquisitions Share Repurchases Dividends  Targets that expand our: • Specialty offerings • End market presence • Geographic breadth  Growth synergies  Adjacent material solutions  Repurchased 2.0 million shares YTD 2017  Repurchased 20.8 million shares since early 2013  6.5 million shares are available for repurchase under the current authorization  Increased annual dividend by 30% to $0.70 per share, representing the seventh consecutive year of dividend growth Free Cash Flow and Strong Balance Sheet Fund Investment / Shareholder Return 13POLYONE CORPORATION *Specialty Platform revenue from products introduced in last five years Vitality Index Progression* 12% 42% 2006 2016 Target ≥ 35% Innovation Drives Earnings Growth Innovation Pipeline Potential $20 $54 2006 2016 Research & Development Spending ($ millions) Phase 1 Frame Opportunity 12 Projects Phase 2 Build Business Case 10 Projects Phase 3 Prototype 21 Projects Phase 4 Scale-up & Test Market 19 Projects Phase 5 Commercial Launch 10 Projects $500 Million $1.4 Billion $700 Million Total Specialty Addressable Market of over $2.6 Billion 14POLYONE CORPORATION Key Innovation Growth Drivers Composites Barrier Additive Technology Fiber Colorants Flame Retardant Polymers  Increasing regulatory drive for halogen replacements  $400m addressable market  Drive to prevent oxygen, light and UV rays from affecting contents in PET packaging, extending shelf life  $200m addressable market  60% of world fiber consumption is synthetic, need to simplify manufacturing and eliminate waste  $300m addressable market  Polymer formulation and process engineering create a pipeline for next generation materials  Drive to replace aluminum and steel with plastics without compromising on strength 15POLYONE CORPORATION  Providing LSS services to small/medium sized customers  54% of associates trained in LSS, with over 125 active black belts  Have trained over 30 customers in LSS methodology  Providing training in Customer Centric Selling Skills with customers  Providing Industrial design and color services to small/medium sized customers  On time delivery above 95% Strengthening relationships: Customer First Through World-Class Service 16POLYONE CORPORATION  Addressable market exceeds $40 billion  Strong performance demonstrates that our strategy and execution are working  Megatrends and emerging opportunities align with strengths  Innovation and services provide differentiation, incremental pricing power and competitive advantage  Strategic reinvestment for growth while returning cash to shareholders  Strong and proven management team driving growth and performance Why Invest In PolyOne? The New PolyOne: A Specialty Growth Company 17POLYONE CORPORATION Segment Highlights 18POLYONE CORPORATION 1.7% 4.6% 5.1% 5.5% 7.2% 8.1% 9.7% 12.2% 14.7% 16.7% 16.0% 20%+ 16.4% 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 YTD 2017 2020 Operating Income % of Sales 2016 Revenue: $0.8 Billion Key End Markets (% of revenue) United States 45% Europe 33% Asia 15% Latin America 5% Canada 2% Platinum Vision At a Glance Color, Additives & Inks Packaging (30%) Industrial (15%) Wire & Cable (10%) Textiles (9%) Transportation (9%) 19POLYONE CORPORATION 1.1% 1.3% 3.4% 5.1% 9.6% 8.0% 8.6% 9.3% 12.1% 14.7% 14.3% 20%+ 13.1% 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 YTD 2017 2020 Operating Income % of Sales Platinum Vision At a Glance Specialty Engineered Materials 2016 Revenue: $0.6 Billion United States 51% Europe 27% Asia 20% Canada 2% Key End Markets (% of revenue) Consumer (19%) Transportation (19%) Electrical & Electronics (15%) Wire & Cable (15%) Healthcare (11%) 20POLYONE CORPORATION 5.5% 6.9% 3.8% 3.6% 5.5% 4.3% 6.3% 7.2% 7.7% 8.3% 12-14% 11.4% 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 YTD 2017 2020 Operating Income % of Sales 11.1% At a Glance Performance Products & Solutions 2016 Revenue: $0.7 Billion United States 78% Canada 16% Latin America 4% Asia 2% Platinum Vision Key End Markets (% of revenue) Building & Construction (30%) Transportation (18%) Wire & Cable (16%) Industrial (16%) 21POLYONE CORPORATION 4% 36% 2006 2016 At a Glance Distribution 2016 Revenue: $1.1 Billion Key Suppliers ROIC Transportation 24% Healthcare 22% Industrial 18% Consumer 15% Appliance 6% E & E 5% B & C 4% Packaging 4% W & C 2% 2.6% 3.0% 3.5% 4.0% 4.6% 5.6% 6.4% 5.9% 6.1% 6.6% 6.5 - 7.5% 6.4% 6.6% 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 YTD 2017 2020 Operating Income % of Sales *After-Tax ROIC http://www.avient.com/Pages/VariationRoot.aspx http://www.avient.com/Pages/VariationRoot.aspx 22POLYONE CORPORATION Target End Markets & Application Examples 23POLYONE CORPORATION Target End Markets… Healthcare Thermally Conductive Technologies Chemical Resistant Technologies Polymer Colorants Elastomeric Grips and Handles Structural Composites Antimicrobial Technologies Anti-Counterfeiting Technologies 24POLYONE CORPORATION Under-hood Components Target End Markets… Automotive Interior Structural Components Sound & Vibration Management Roof Systems Air Management Electronics and Cameras Lighting Fluid Handling Interior Trim Exterior Trim Braces & Brackets Fasteners Seals & Flaps 25POLYONE CORPORATION Target End Markets… Packaging Oxygen Scavenger Technologies Laser Marking Additives Antistatic Technologies UV Light Barrier Technologies Cap & Closure Colorants Process Optimization Technologies Antioxident Technologies Density Modified Technologies 26POLYONE CORPORATION Target End Markets… Consumer Thermally Conductive Components Polymer Colorants Elastomeric Grips and Handles Structural Composite Components 27POLYONE CORPORATION  Impart weight, sound and metallic finish to caps and closures for cosmetics and spirits applications  Elevate quality and prestige perceptions among high-end consumers  Eliminate time and cost associated with secondary operations and assembly Luxury Packaging GravitechTM Density Modified Polymers 28POLYONE CORPORATION Optimize Color Usage OnColorTM Super Concentrates  Eliminate costs by increasing pigment density  Enhance color performance without altering form and formulation  Increasing design capabilities by reducing weight and layer thickness 29POLYONE CORPORATION Combat Bacteria Formation WithStandTM Antimicrobial Technology  Inhibit microbial growth on polymer surfaces  Enhance value or products and devices  Highly versatile concentrate with the ability to be incorporated into a wide variety of products 30POLYONE CORPORATION Medical Device Housings Chemically Resistant Engineered Polymers  Durable, long-lasting products stand up to the most aggressive disinfectants  Minimize environmental stress cracking and discoloration  One of the broadest medically approved polymer and colorant portfolios 31POLYONE CORPORATION Color & Design Services  Greater control of color development and supply chain  Work across entire design process from concept to commercialization  Inspire creativity in the use of polymer materials, colors, and effects  Innovative brand differentiation  Faster development timelines 32POLYONE CORPORATION Outdoor Applications  Leading provider of high performance specialty materials for the recreational and sports & leisure industry  Well positioned across all segments to address market needs  Metal to Polymer Conversion  Lightweighting  Thermal Management  Impact Performance 33POLYONE CORPORATION  ColorMatrix Fiber Colorant Solutions  Proprietary advanced liquid color formulations and equipment enable greater efficiency and productivity  Eliminates aqueous dyeing and its associated wastewater treatment  Solid Color Concentrates  Extrusion-spun fibers colored via solid masterbatch Fiber Colorants 34POLYONE CORPORATION Smart Home Devices ResilienceTM Vinyl Solutions  High flame retardancy to meet strict UL standards  Greater processing and design flexibility  Specialized additives provide long term color stability  Diffusive lens materials improve light dispersion 1 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 common shareholders, adjusted earnings per share (EPS) attributable to PolyOne common shareholders and adjusted earnings before interest, taxes, depreciation and amortization (EBITDA) to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and that current levels may serve as a base for future performance.

It is a technical methodology that drives improvement of all business processes through the elimination of waste and variation. In addition to the technical training and company- wide modules, managers can participate in the CORE Leadership training program. Through this data, we create safety data sheets and customer certification statements for intended use and product safety improvements.

Property GlasArmor Panel ThermoBallistic Panel Test Method Glass Content 55 wt% 73 wt% Density 0.066 lb/in3 1.83 g/cm3 0.062 lb/in3 1.72 g/cm3 ASTM D-792 Flex Mod 2.1–2.7 msi 14.5 - 18.6 GPa 2.5 msi 17.2 GPa ASTM D-790 Flex Strength 65 ksi 448 MPa 14 ksi 96.5 MPa ASTM D-790 Barcol Hardness 50–60 n/a ASTM D-2583 Fire Rating 1 hour1 n/a ASTM E-119-09c Flame Spread Rating 452 n/a ASTM E-84-08a Smoke Developed Rating 1652 n/a ASTM E-84-08a MATERIAL DATA (TYPICAL VALUES) 1 UL Level 3 panel was fire tested as part of a wall system with steel studs and drywall face sheet 2 NFPA & IBC Class B rating achieved www.avient.com Copyright © 2023, Avient Corporation.

PREPERM™ Solutions for 5G The increased demand for data capacity and low latency and the growing volume of connected devices require more base stations and higher frequencies. The dielectric measurement data up to 220 GHz indicates that the dielectric properties of PREPERM thermoplastics are stable and not dependent on the frequency.   • Stable and controlled dielectric constant - from 2.6 to 23 • Very low losses even at mmWaves • Isotropic material - no glass fibers • Can be injection molded and machined APPLICATION BULLETIN STABLE RF PROPERTIES OVER A WIDE FREQUENCY RANGE 0 ,0 2 ,0 4 ,0 6 ,0 8 ,0 1 0 ,0 1 2 ,0 0 1 0 2 0 3 0 4 0 5 0 6 0 D ie le ct ri c co n s ta n t F re que nc y [G H z ] P R E P E R M ® P P E 95 0 P R E P E R M ® P P E 80 0 P R E P E R M ® P P E 44 0 P R E P E R M ® P P E 32 0 P R E P E R M ® P P E 26 0 LOW LOSSES UP TO mmWAVE FREQUENCIES* BATCH-TO-BATCH STABILITY DURING PRODUCTION * Measurements performed at VTT Technical Research Centre of Finland Ltd in 2018.