All Rights Reserved 2024 30 Portfolio of CAI solutions Solid Colorants Liquid Recycling solutions Flame retardants Barrier enhancements Surface modifiers Plastisol Water-based Bio-based Silicone dispersion Vinyl formulations Additives Specialty coatings Advanced dispersionsScreen printing inks Copyright © .

HP"), a technology company with a product and services portfolio of personal systems, printers, and 3D printing solutions, since 2024. Wulfsohn EXECUTIVE COMPENSATION PROXY STATEMENT 2025 | Annual Meeting of Shareholders 76 Miscellaneous Provisions Internet Availability of Proxy Materials In accordance with rules and regulations adopted by the Securities and Exchange Commission, we may furnish proxy materials by providing internet access to those documents, instead of mailing a printed copy of our proxy materials to each shareholder. MISCELLANEOUS PROXY STATEMENT 2025 | Annual Meeting of Shareholders 78 Proxy Solicitation Avient is making this proxy solicitation and will bear the expense of preparing, printing and mailing this notice and proxy statement.

COLOR PVC PE/PP/PUR PS ABS ACETAL PBT NYLON PC/PES OM55488TR N/A TR Amethyst # *200+ NS 260+ 260+ NS 265+ NS 300 OM89050TR N/A TR Brown NS NS 260+ 280+ NS 265 NS 300 OM0279HT N/A Diamond White 200+ 280+ 260+ 280+ 200+ 265 280+ 300+ OM0447HT N/A Cumulus 200+ 280+ 260+ 280+ 200+ 265 280+ 300+ OM1739HT N/A Melon Yellow # *200+ NS 260+ 260+ NS 265 300+ 300+ OM1740HT N/A Pineapple # *200+ NS NS 260+ NS 265 300+ 300+ OM1829HT N/A Hornet # *200+ NS NS 260+ NS 265 300+ 300+ OM2264HT N/A Fresh Orange # *200+ NS NS NS NS 265 300+ 300+ OM3930HT N/A Deep Red # *200+ NS 260+ 260+ NS 265 300+ 300+ OM3940HT N/A Sunset # *200+ NS NS NS NS 265 300+ 300+ OM4217HT N/A Claret # *200+ NS 260+ 260+ NS 265 300+ 300+ OM33049HT N/A Lava # *200+ NS NS NS NS 265 300 300 OM33050HT N/A Poinsettia # *200+ NS NS NS NS 265 300 300 OM66148HT N/A Mid Green 200+ 280+ 260+ 260+ 200+ 265 300+ 300+ OM66294HT N/A Forest Green # NS NS NS NS NS 265 280+ 300+ OM66295HT N/A Astro # *200+ NS 260+ 280+ NS 265 280+ 300+ OM77323HT N/A Dolphin 200+ 280+ 260+ 280+ 200+ 265 280+ 300+ OM77324HT N/A Slate 200+ 280+ 260+ 280+ 200+ 265 280+ 300+ OM0038 N/A Value White 200+ 260+ 260+ 280+ 200+ 265 280+ 300+ OM0246 N/A Stone Effect 200+ 260 280 280+ NS 265 280 300 OM0299 N/A Pearl 200+ 260+ 260+ 280+ 200+ 265 280 300 OM0589 N/A Metallic Sand 200+ 280 260+ 280+ 200+ 265 300 300 OM0590 N/A Autumn Gold 200+ 280 260+ 260 200+ 255 NS NS OM0592 N/A Tropical Pearl 200+ 260 260 260 200+ 250 NS NS OM0593 N/A Inca Gold 200+ 280 260+ 280+ 200+ 250 280 280 OM0797TR N/A Sparkle 200+ NS 280 280 200 265 280 300 OM1339 N/A Value Yellow 200+ 280 280 280+ 200+ 265 280 300 OM5972 N/A Value Blue 200+ 280+ 260+ 280+ 200+ 265 280+ 300+ OM9074 N/A Odyssey 200+ 280 260+ 280+ 200+ 265 300 300 OM33074 N/A Spanish Earth 200+ 280 260 260 200+ 250 NS NS OM33075 N/A Sunset Pearl 200+ 280 260 260 200+ 250 NS NS OM33100TR N/A Pink Sparkle NS NS 260 260 NS NS NS NS OM33111 N/A Value Red 200+ 240 220+ NS 200+ NS NS NS OM55559 N/A Soft Lilac 200+ 280 260 250 200+ 265 NS 280 OM55561 N/A Atlantic Pearl 200+ 280 260+ 280 200+ 265 280 280 OM55563 N/A Midnight Satin 200+ 280 260+ 280 200+ 265 200 280 OM55564 N/A Frost Bite 200+ 280 260 260 200+ 265 NS 280 OM55565 N/A Winter Wind 200+ 280 260+ 280+ 200+ 265 280 300 OM55566 N/A Mirage 200+ 280 260 260 200+ 265 NS 280 OM55567 N/A Purple Silk 200+ 260 250 250 200+ NS NS NS OM55666TR N/A Blue Sparkle NS NS 260+ 260+ NS 265 NS 280 OM55700TR N/A Violet Sparkle NS NS 260 260 NS 265 NS 300 OM66302 N/A Bottle Green 200+ 280+ 260+ 280+ 200+ 265 NS 300+ OM66344 N/A Arctic Moss 200+ 280 260+ 280+ 200+ 265 280 300 OM66345 N/A Grape 200+ 280 260+ 270 200+ 260 NS 280 OM66380 N/A Value Green 200+ 280+ 260+ 280+ 200+ 265 280+ 300+ OM77450 N/A Value Grey **200+ 280+ 260+ 280+ 200+ 265 280+ 300+ NOTES * Suitable for use in all PVC except plasticized PVC ** Suitable for use in all PVC except tin stabilized PVC + Potential use at temperatures above those indicated NS Not suitable for use in polymer indicated # Contains dyestuff which will migrate from PE/PP and all other polyolefins OMNICOLOR™ COLOR CHART White UK OM0001 Stock US OC0UFB Sherbert Lemon UK OM1753 US Not Available Flame Red UK OM3820 Stock US OC3SAJ Cerise UK OM4219 US Not Available Bright White UK OM0005 Stock US OC0UFC Linen UK OM1831 US Not Available Lobster Red UK OM3849 Stock US OC3SAK Sky Blue UK OM5001 Stock US OC5UFB Polar White UK OM0330 Stock US OC0UFD Buttermilk UK OM1832 US Not Available Tomato Red UK OM3850 Stock US OC3UFJ Powder Blue UK OM5009 Stock US OC5SAD Coconut UK OM0332 Stock US OC0SAD Chick UK OM1834 US Not Available Fuchsia UK OM3853 US OC3SAL Mid Blue UK OM5011 Stock US OC5UFD Magnolia UK OM1275 Stock US OC0UFF Custard UK OM1839 US Not Available Admiral Red UK OM3856 US OC3SAM Royal Blue UK OM5027 Stock US OC5UFF Vanilla UK OM1293 Stock US OC0SAE Yolk UK OM1845 US Not Available Cardinal Red UK OM3861 Stock US OC3UFM Pale Blue UK OM5034 Stock US OC5SAF Sunflower Yellow UK OM1625 Stock US OC1SAE Seville Orange UK OM2239 Stock US OC2UFB Fire Engine Red UK OM3864 US OC3SAN Navy Blue UK OM5065 US OC5SAG Daffodil Yellow UK OM1637 Stock US OC1SAF Mandarin Orange UK OM2243 US OC2SAE Rocket Red UK OM3872 Stock US OC3SAP Ultra Blue UK OM5179 Stock US OC5UFI Citrus UK OM1690 Stock US OC1UFD Pumpkin UK OM2250 Stock US OC2SAF Raspberry UK OM3879 US OC3SAQ Pacific Blue UK OM5485 Stock US OC5UFJ Banana UK OM1693 Stock US OC1UFE Nectarine UK OM2252 Stock US OC2SAG Brilliant Red UK OM3947 Stock US Not Available Baby Blue UK OM5982 US OC5SAI Jasmine UK OM1696 US OC1SAG Carrot UK OM2291 US Not Available Poppy Red UK OM3951 US Not Available Purple UK OM55094 Stock US OC4UFB Canary Yellow UK OM1700 Stock US OC1UFG Strawberry Red UK OM3223 Stock US OC3SAE Valentine Red UK OM3955 US Not Available Ice Blue UK OM55157 US OC5UFS Marigold UK OM1702 US OC1SAH Rose Pink UK OM3364 US OC3SAF Bubblegum Pink UK OM3958 US Not Available Midnight Blue UK OM55160 US OC5SAH Ivory UK OM1704 Stock US OC8SAF Flesh Pink UK OM3513 US OC2SAH Ruby UK OM33053 US Not Available Cornflower Blue UK OM55162 Stock US OC5UFM Cream UK OM1707 US OC8SAG Cherry Red UK OM3788 US OC3SAH Burgundy UK OM4043 Stock US OC3SAR Sol Yellow UK OM1751 Stock US Not Available Pastel Pink UK OM3801 US OC3SAI Mulberry UK OM4204 Stock US OC4SAA Due to printing or monitor variations, color shown may vary from actual color.

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  Transformational M&A with PP&S divestment and pending acquisition of Clariant Masterbatch business  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  Proven acquisition strategy with robust pipeline  Commercial investments are fueling momentum and generating organic growth S E R V I C E : 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 40 T A L E N T D E V E L O P M E N T PolyOne Corporation 41 Leadership Program Participants 2012 2013 2014 2015 47 0 86 2016 2019 125 169 412 Campus Hires 2008 2011 2014 2017 0 25 90 47 PolyOne LSS Blackbelts 2008 2011 2014 2019 0 67 247 147 2019 134 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 I Q D E S I G N PolyOne Corporation 42 Computer Aided Engineering Design Strategy 3 15 2014 2019 Designers & Engineers $0 $15M 2014 2019 $4M $87M 2014 2019 Opportunity funnel Total Revenue L S S C U S T O M E R F I R S T PolyOne Corporation 43 Customer Engagements Enables sales growth by building more intimate customer relationships, giving us insight to customers’ needs, with a service that is not easily replicated 2014 2019 2 210 I N N O V A T I N G W I T H P O L Y O N E PolyOne Corporation 44 S E G M E N T H I G H L I G H T S C O L O R , A D D I T I V E S & I N K S E N D M A R K E T S & S O L U T I O N S PolyOne Corporation 45 Solid Colorants Performance Additives Screen Printing Inks Liquid Colorants Packaging 31% Industrial 14% Textiles 13% Wire & Cable 10% Building & Construction 9% Consumer 8% Transportation 7% Healthcare 5% Appliances 2% Electrical & Electronics 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 9 R E V E N U E | O V E R $ 1 B I L L I O N PolyOne Corporation 46 Europe 34% United States 44% Asia 15% Canada 1% Mexico 3% South America 3% $4 $25 $104 $147 2005 2009 2013 2019 0.9% 5.5% 12.2% 14.7% 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 E N D M A R K E T S & S O L U T I O N S PolyOne Corporation 47 Engineered Formulations Advanced Composites Thermoplastic Elastomers Wire & Cable 15% Telecommunications (FOC) 13% Consumer 19% Electrical & Electronics 12% Healthcare 9% Industrial 8% Packaging 6% Appliance 2% Building & Construction 2% Transportation 14% Note: (FOC) refers to Fiber Optic Cabling 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 9 R E V E N U E | $ 7 5 0 M I L L I O N PolyOne Corporation 48 Europe 27% United States 54% Asia 17% Canada 2% $21 $57 $87 2005 2009 2013 2019 0.1% 5.1% 9.3% 11.6% 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 49 Healthcare 28% Transportation 23% Industrial 19% Consumer 12% Appliance 6% Electrical & Electronics 5% Building & Construction 4% Packaging 2% Wire & Cable 1% Operating Income & Margin2019 Revenue | $1.2 Billion $25 $63 $75 2005 2009 2013 2019 $20 2.9% 4.0% 5.9% 6.3% 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 50 Performance Additives 15% Polyethylene 13% Pigments 9% Styrenic Block Copolymer 7% Nylon 7% TiO2 6% Polypropylene 5% Dyestuffs 4% Plasticizers 3% Other Raw Materials 31% $900 million of raw material purchases in 2019 excluding Distribution business Note: All figures exclude divested PP&S 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 51 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  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 PolyOne Corporation 63 Global high yield & leveraged finance Conference Forward Looking Statements USE OF �NON-GAAP�MEASURES Vision Safety First Commodity to Specialty Transformation PolyOne�2019 Revenue | $2.9 billion Slide Number 8 Sustainable Path to Double-Digit EPS Growth Expansion of Commercial Resources driving growth The Evolving Customer Relationship Slide Number 12 Aligning with trends for Growth Revenue from Sustainable Solutions Innovation 3 Horizons of Development Innovation Spotlight: Composites COMPOSITE MATERIALS COMPOSITEs Portfolio�Diverse Capabilities and Solutions Serving Manufacturers and OEMS PolyOne applications in Fiber optic cables Fiber optical growth drivers Invest-to-Grow M&A Strategy Invest-to-Grow M&A Playbook Invest-to-Grow Proof of performance Clariant Masterbatch Acquisition Drives�Next Level Specialty Transformation Transformation Headlines Fit with Four Pillar Strategy End Market Transformation End Market Transformation Complementary Geographic Presence Slide Number 31 PolyOne + Clariant Masterbatch Business Over 85% of Adjusted EBITDA from Specialty Transaction overview Significant Synergy Opportunities Attractive Financing Structure Slide Number 37 Returning cash to shareholders�Over $1.2 Billion since 2011 Why Invest In PolyOne?

Edgetek™ 3D/LDS Solutions - Product Bulletin (Chinese) Precolor for 3D Dental Scanner 3D Dental Scanner

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a technology company with a product and services portfolio of personal systems, printers, and 3D printing solutions, since 2022. Wulfsohn EXECUTIVE COMPENSATION 76 PROXY STATEMENT 2023 | Annual Meeting of Shareholders MISCELLANEOUS PROVISIONS INTERNET AVAILABILITY OF PROXY MATERIALS In accordance with rules and regulations adopted by the Securities and Exchange Commission, we may furnish proxy materials by providing internet access to those documents, instead of mailing a printed copy of our proxy materials to each shareholder. MISCELLANEOUS 78 PROXY STATEMENT 2023 | Annual Meeting of Shareholders PROXY SOLICITATION Avient is making this proxy solicitation and will bear the expense of preparing, printing and mailing this notice and proxy statement.

a market leader in sustainable, water-based inks technology for the textile screen printing industry. 

Rutland is a leading producer of specialty inks and an innovator in textile screen printing solutions and services. On June 8, 2017, the Company completed the acquisition of Rutland Holding Company (Rutland), a leading producer of specialty inks and an innovator in textile screen printing solutions and services. Rutland is a leading producer of specialty inks and an innovator in textile screen printing solutions and services.

a technology company with a product and services portfolio of personal systems, printers, and 3D printing solutions, since 2022. Wulfsohn EXECUTIVE COMPENSATION 76 PROXY STATEMENT 2023 | Annual Meeting of Shareholders MISCELLANEOUS PROVISIONS INTERNET AVAILABILITY OF PROXY MATERIALS In accordance with rules and regulations adopted by the Securities and Exchange Commission, we may furnish proxy materials by providing internet access to those documents, instead of mailing a printed copy of our proxy materials to each shareholder. MISCELLANEOUS 78 PROXY STATEMENT 2023 | Annual Meeting of Shareholders PROXY SOLICITATION Avient is making this proxy solicitation and will bear the expense of preparing, printing and mailing this notice and proxy statement.