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VERSAFLEX™ CE TPEs FOR 5G TRANSPARENCY Rapidly expanding 5G networks are increasing performance requirements across the consumer electronics industry. These 5G transparent TPEs combine the excellent physical properties, aesthetics and UV resistance qualities of traditional TPEs with lower dielectric constant (Dk) and dissipation factor (Df) performance, resulting in an advanced material solution with less signal degradation for next-generation devices. APPLICATION BULLETIN GRADE Dk at 40 GHz Df at 40 GHz Versaflex CE 3140-65N 2.49 0.024 Versaflex CE 3140-90N 2.54 0.021 Standard TPE (70A) 2.67 0.055 Standard TPE (90A) 2.83 0.038 5G TRANSPARENCY PERFORMANCE *Market benchmark is 2.5 Dk at 37 GHz for compatible phone cases 1.844.4AVIENT www.avient.com Copyright © 2022, Avient Corporation.

Patterson President and Chief Executive Officer PolyOne Corporation Page 27 Well Positioned for Revenue Growth Addressable Market by Platform $540 $215 $120 $40 $260 $525 ($ millions) Design/Service Sustainable Solutions Surface Modification Lightweighting Thermal Control Flame Retardancy $1.0 - $2.0 Billion of revenue generated from new products in 5 years Gross margin on new products exceed current gross margin by at least 10 percentage points World class vitality index of ≥ 35% 2018 PolyOne Corporation Page 28 Megatrends Aligned with Key End Markets Decreasing Dependence on Fossil Fuels Protecting the Environment Improving Health and Wellness Megatrend End Markets Globalizing and Localizing Health & Wellness Transportation Packaging Consumer PolyOne Corporation Page 29 2006 2013 Revenue ($ millions) Health and Wellness Evolution General purpose tubing TPE applications from GLS Specialty tubing Ergonomic enhancements Pre-certified biocompatible colorants Highly sophisticated catheter and drug delivery components Chemical and heat sterilizable materials Authentication and protection technologies Addressing wellness, prevention, diagnostic and therapy changes in healthcare setting Healthcare packaging solutions 2006 2015 & Beyond $416 $105 PolyOne Corporation Page 30 Transportation Evolution General purpose formulations (bumpers, roof racks) Long fiber for lightweighting Thermal management for LED lighting Thermoset composite pultrusions Conductive polymers for EMI shielding Formulations for aerospace interiors Thermoplastic composites High temperature formulations for aerospace Expand 3D printing capabilities 2006 2015 & Beyond 2006 2013 Revenue ($ millions) $709 $315 PolyOne Corporation Page 31 Packaging Evolution Masterbatch colors and PVC packaging materials TPEs to enhance brand appeal and consumer functionality Liquid color and additive technologies to extend shelf life, preserve taste and differentiate brands Leveraging color, additives and sheet technology for healthcare and consumer packaging solutions 2006 2015 & Beyond 2006 2013 Revenue ($ millions) $612 $260 PolyOne Corporation Page 32 Consumer Evolution Commodity plastic and masterbatch color solutions Engineered materials to enhance customer appeal through visual and performance improvements Formulated metal- to-polymer conversion to enhance performance and reduce manufacturing costs Biopolymers & composite materials leveraging unique color technology to build brand identity 2006 2015 & Beyond 2006 2013 Revenue ($ millions) $394 $228 PolyOne Corporation Page 33 Interactive Display Introduction PolyOne Corporation Page 34 Interactive Displays INNOVATION DISCUSSION LEADER TECHNOLOGIES MARKETS Polycast™ Bullet Resistant Sheet Aerospace GlasArmor™ Ballistic Resistant Panels Security reFlex™ Bio-Based Plasticizer Solutions Wilflex™ Oasis Hydrate InVisiO℠ Color Inspiration Forecast In-Store Audits OnColor™ Portfolio Light Weighting Thermal Management Corrosion Resistance Design Flexibility Sustainability Global Supply Chain Ergonomics and Aesthetics Consumer Appeal 9) Consumer Electronics Solutions Walter Ripple General Manager GLS Personal Electronics Wearable Electronics Hand Held Devices Portable Audio 7) Metal Replacement Technology Kurt Schuering Vice President Global Key Account Management Aerospace Sporting and Shooting 8) Medical Device Solutions Dr. Nikrant Global Specialty Engineered Materials Versaflex™ VDT Thermoplastic Elastomers 1) Anti-Counterfeiting Solutions John V.

When conventional thermoplastics can’t measure up, high-performance thermoplastics can meet the most stringent requirements. Which types of applications call for high-performance thermoplastics? CRITICAL DIFFERENCES What Makes High-Performance Thermoplastics Stand Out?

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 P O S T P P & S D I V E S T M E N T 2 0 1 8 R E V E N U E | $ 2 . 9 B I L L I O N Segment End Market Geography 17% Wire & Cable Building & Electrical & Color Additives & Inks 35% Distribution 43% Specialty Engineered 22% United States 53% Europe 19% Latin America 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 *Pro Forma for sale of DSS 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% **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 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 Expand specialty portfolio with strategic acquisitions Innovate and develop new technologies and services Repurchase 600K-1M shares annually Increase commercial resources 5-7% annually Double acquired company margins Enhance efficiencies through Lean Six Sigma and commercial excellence 531 710130 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 D D I N G C U S T O M E R T O U C H P O I N T S 4 24 Inside sellers $11M $109M Inside sales/digital revenue A L I G N I N G W I T H T R E N D S F O R G R O W T H T R A N S P O R T A T I O N P A C K A G I N G H E A L T H C A R E C O N S U M E R PolyOne Corporation 12 Facilitate alternative energy solutions Light- weighting Reduce packaging materials Improve recyclability Reduce spread of infection I N N O V A T I O N PolyOne Corporation 13 Customization 55% M&A 30% Innovation Pipeline Innovation comes from Research & Development Spend ($ millions) Vitality Index % of sales from products launched last 5 years 35% $20 $56 Transformational Opportunity for Growth Through M&A Adjacent Opportunity for Growth Through New Product Pipeline Core Customization 3 H O R I Z O N S O F D E V E L O P M E N T PolyOne Corporation 14 Incremental development from existing base of technology New development adjacent to current New technology development outside of and with our current base Service adjacent markets and Create new markets, target new customer needs Service existing markets and Market Technical I N N O V A T I O N Non-Halogen Flame Retardants Barrier Technologies Fiber Colorants Advanced Composites Thermoplastic Elastomers Gordon Composites/ Polystrand – Composites GLS – Thermoplastic Elastomers ColorMatrix – Liquid Color & Additives PlastiComp Fiber-Line I N N O V A T I O N P I P E L I N E PolyOne Corporation 15 PrototypeFrame Opportunity Scale-up & Test Market Build Business Case Commercial Launch (since 2017) Phase 1 Phase 2 Phase 3 Phase 4 Phase 5 8 2 44 0 4 Breakthrough Platform Derivative Number of Projects 10 5 17 5 10 47 Total Addressable Market ($ millions) - - $1,767 $315 $766 $2,848 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 Polymer Composite Strength Design Flexibility Continuous Fiber Thermoset Short Glass Fiber Thermoplastics Continuous Fiber Long Glass Fiber Thermoplastics 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 Acquired Polystrand Installed LFT production Avon Lake Acquired Gordon Thermoplastic Composites Long Fiber Reinforced Thermoplastics Continuous Fiber Thermosets Long Fiber Thermoplastic (LFT) Installed LFT production Barbastro, Spain Acquired Glasforms Long Fiber Reinforced Thermoplastics Continuous Fiber Thermosets 2012 2015 20162009 2011 Acquired PlastiComp, specialty LFT producer PolyOne Corporation 2019 Acquired Fiber-Line, specialty fiber processor 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 Bulkheads and Transoms Ceilings and Hatches Doors and Cabinetry Flooring Door Panels Side Walls Flooring & Side Panels Aerodynamic Fairings Seat and Bunk Reinforcements F I B E R - L I N E H I G H L I G H T S PolyOne Corporation 20 71% 1% 2018PF Sales by Market Fiber Optics Oil & Gas Estimated 2019 Sales: $100M • Abrasion resistance • Adhesion enhancement • Anti-microbial • Chemical resistance • Color • Conductivity • Fire retardant • Glow-in-the- dark • Process enhancement • UV inhibitor • Water swellable • Water repellency • Entangling • Extrusion • Pultrusion • Twisting • Winding • Braiding • Stranding High Performance Fiber and Polymers Suppliers Customer Value Coating Processing Fiber-Line Bare and Coated Fiber and Composite Rod Customers 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 1. 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  Growing leadership position in attractive markets  Innovation, technology and service are differentiators  Capital management is a strength: Record-setting cash generation to continue for years  Expand ROIC while increasing invested capital  Proven acquisition strategy with robust pipeline  Commercial investments are fueling momentum and generating organic growth 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 2015 47 86 2016 125 169 315 Campus Hires 2008 2011 2017 25 47 PolyOne LSS Blackbelts 2008 2011 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 14 Industrial designers $0 $10M $4M $80M Opportunity funnel New business revenue LSS CUSTOMER FIRST PolyOne Corporation 34 Customer Projects Enables sales growth by building more intimate customer relationships, giving us insight to customers’ needs, with a service that is not easily replicated 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 Enables validation of fit and function Shortens design cycle and time to market Avoids tooling rework Drives innovation Delivers substantial customer value PolyOne Corporation 36 From concept to production 99.9% Reduction in turnaround time Traditional Timeline up to 24 weeks PolyOne ColorMatrix Select™ 6 hours Innovative system for processors and OEMs to develop colors in real time Complete system that provides customers with the freedom to match, prototype and produce color entirely within their own facility C O L O R M A T R I X S E L E C T ™ “Being able to create color and produce parts in 1 day is unheard of in this industry” -CEO, Industry Leader 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 PolyOne Corporation 38 Solid Colorants Performance Additives Screen Printing Inks Liquid Colorants 28% Industrial 14% Textiles Building & Construction 10% Appliances 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 E R $ 1 B I L L I O N $4 $25 $104 $159 0.9% 5.5% 12.2% 15.1% 14.0% 16.0% 100 110 120 130 140 150 160 170 PolyOne Corporation 39 Europe 35% 45% 14% 1% Mexico South America 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 PolyOne Corporation 40 Engineered Formulations Advanced Thermoplastic Elastomers 21% 13%Healthcare Building & Construction 4% Electrical & Electronics 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 E V E N 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% Europe 28% 46% 24% 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 PolyOne Corporation 42 Specialty Vinyl Solutions Healthcare Formulations Smart Device Flame Retardant Polymers Building & 28% 17% 16%Consumer Electrical & Asia 78% Mexico 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 E V E N U E | $ 7 3 6 M I L L I O N $40 $24 $56 $74 4.6% 3.6% 7.2% 14.0% 16.0% 10 100 PolyOne Corporation 43 D I S T R I B U T I O N E N D M A R K E T S & S U P P L I E R S PolyOne Corporation 44 27% 22% Electrical & Building & $20 $25 $63 $71 2.9% 5.9% 5.6% 1.0% 3.0% 5.0% 7.0% 15 25 35 45 55 65 75 Operating Income & Margin2018 Revenue | $1.3 Billion http://www.avient.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 Performance Additives PVC Pigments Polyethylene Plasticizers Polypropylene TiO2 Nylon Styrenic Block Copolymer Other Raw 27% $1.3 billion of raw material purchases in 2018 excluding Distribution business Note: All figures exclude Distribution business 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 Chemical Resistant Polymer Colorants Elastomeric Grips and Handles Structural Composites Antimicrobial Technologies Anti-Counterfeiting Target End Markets… Healthcare Catheter Technologies Under-hood Components Target End Markets… Automotive Interior Structural 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 Polymer Colorants Elastomeric Grips and Handles Structural Composite Oxygen Scavenger Laser Marking Additives Antistatic Technologies UV Light Barrier Technologies Cap & Closure Colorants Process Optimization Antioxidant Technologies Density Modified Target End Markets… Packaging  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  Eliminate costs by increasing pigment density  Enhance color performance without altering form and formulation  Increase design capabilities by reducing weight and layer thickness Optimize Color Usage OnColorTM Super Concentrates  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 Combat Bacteria Formation WithStandTM Antimicrobial Technology  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 Medical Device Housings Chemically Resistant Engineered Polymers 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 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  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 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.

Versaflex CE TPEs for 5G Application Bulletin_CN8.26-2 VERSAFLEX™ CE TPEs 实现 5G 信号高速传输 应用公告 主要特性 为实现信号高速传输和连接提供卓越的介电性 能及较低的信号损耗 与标准 TPEs 相比，具有更低的介电常数（Dk） 和介电损耗（Df） 物理性能优越、耐紫外线、美观 行业&应用 Versaflex™ CE 3140 TPEs 专为手机保护壳研制， 最大限度地减少信号损耗，实现 5G场景中终端设 备的高速连接，为消费者提供无缝使用体验。 分类 Dk @ 40 GHz Df @ 40 GHz Versaflex CE 3140-65N 2.49 0.024 Versaflex CE 3140-90N 2.54 0.021 标准TPE (70A) 2.67 0.055 标准TPE (90A) 2.83 0.038 5G信号通透性能 *兼容5G手机壳的行业基准：2.5 Dk @ 37 GHz 特性 VERSAFLEX CE 3140 标准 TPE 5G毫米波 (mmWave) 频率下的性能 优异 一般 目标介电常数 (

Homepage // News Center // PolyOne Showcases Its Expanding Portfolio of Long Fiber Thermoplastics at CHINAPLAS 2019 PolyOne is showcasing long fiber thermoplastic technologies at its CMF Inspiration Wall (across from Hall 10.3 Entrance, Zone B) at CHINAPLAS 2019 from May 21-24. PHOTO CAPTION: PolyOne Showcase Its Expanding Portfolio of Long Fiber Thermoplastic Composite at CHINAPLAS 2019

GLS™ TPE MAJOR HOME APPLIANCE SOLUTIONS ENHANCE APPLIANCE PERFORMANCE WITH TPEs FOR ANTI-VIBRATION FEET In the highly competitive home appliance market, brands are driving to differentiate products with enhanced performance attributes. GLS TPEs are designed to help you stand out from your competitors with reduced appliance movement and noise. Anti-vibration feet made with our TPEs have resistance to wear and tear, better performance and function, improved processability and reduced number of part defects.

Homepage // News Center // Avient Launches Artisan™ High-Gloss, Pre-Colored Thermoplastics for Paint Replacement Parts molded from Artisan pre-colored thermoplastics offer excellent scratch resistance compared to painted plastic, which minimizes the appearance of scratches. These thermoplastics bring two added benefits: because there is no painting process required, energy use is reduced and VOCs are eliminated.

Homepage // News Center // New Artisan™ ABS Thermoplastic Solution from Avient Features Metallic Effect for Electronics Brands By using Artisan pre-colored ABS thermoplastics, molders are able to produce parts with a brilliant, high-gloss metallic effect without any secondary processing. Compared with a traditional painting process, injection-molded Artisan materials have lower energy requirements and reduced VOC emissions, making these thermoplastics a more sustainable solution.