Standard metallic shades include Brilliant Rose Gold, Brilliant Ice Blue, Brilliant Silver and Brilliant Gun Metal, but any hue can be achieved through customization.

Versaflex™ CE Blue Jean Stain Resistant TPEs Bergamid™ polymer formulations and GLS™ TPEs replace metal and provide comfort and usability for Swiss soldiers pocket knife

Nymax™ / Bergamid™  Polyamide Formulations Nymax™ / Bergamid™  Polyamide Formulations

Avient corporation first quarter 2023 results AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) F E B R U A R Y 2 0 2 4 D I S C L A I M E R Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Continue fostering our Great Place to Work® culture Strategic Objectives Long Term Growth Rates Growth Drivers $340 $455 $790 $1,135 2016 2018 2020 2023 $51 $84 $212 $645 2016 2018 2020 2023 $108 $113 $231 $230 2016 2018 2020 2023 $265 $358 $726 $725 2016 2018 2020 2023 8-12% 8-10% 8-10% 5% Sustainable Solutions Composites Healthcare Asia/Emerging Regions Profitable Growth Great Place to Work 5.4% 10.9% 16.0% 2006 2014 2023 EBITDA Margins $0.14 $1.93 $2.36 2006 2014 2023 Adjusted EPS TOP -T IE R S US TAINABIL IT Y P E RF ORM ANCE AND RE COGNIT ION Industry Sustainability Standards ESG Ratings Performance 1 2 4 87th 94th percentile 5 Avient CDP Score: A- F E B R U A R Y 1 4 , 2 0 2 4 W E B C A S T P R E S E N T AT I O N DR. AS HIS H KHANDP UR P R E S I D E N T & C E O 7 8 PORTFOLIO TRANSFORMATION 8 7% 46% 66% 87% 100% 0% 20% 40% 60% 80% 100% 2005 2010 2015 2020 2023 % o f A dj us te d E B IT D A Commodity JVs Distribution Performance Products & Solutions Specialty Businesses Adjusted EBITDA from Specialty Applications SUSTAINABILITY AS A GROWTH DRIVER 9 LONG-TERM REVENUE GROWTH DRIVERS Sustainable Solutions Composites, Healthcare, Asia / LATAM Overlap Other 60%+ Key Growth Drivers Total Company Revenue Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Composites 8–10% Healthcare 8–10% Asia / LATAM 5% Other 0–2% Avient 6% END MARKET OBSERVATIONS ( % O F C O M PA N Y S A L E S ) ENERGY 5% DEFENSE 7% TELECOMMUNICATIONS 4% HEALTHCARE 7% 10 TRANSPORTATION 10% INDUSTRIAL 16% BUILDING & CONSTRUCTION 9% CONSUMER 19% PACKAGING 23% 11 REGIONAL OBSERVATIONS ( % O F C O M PA N Y S A L E S ) 11 US & Canada Latin America EMEA Asia 41% 36% 18% 5% Q 4 2 0 2 3 R E S U L T S Q4 2023 PERFORMANCE VS.

The Group now includes brand members Adidas Group, C&A, Esprit, G‐Star Raw, H&M, Inditex, Jack Wolfskin, Levi Strauss & Co., Li Ning, M&S, New Balance Athletic Shoe, Inc., NIKE, Inc., and PUMA SE, a growing number of associate members, and a diverse group of stakeholders.

OFFSHORE LURE MANUFACTURER F I S H I N G L U R E S • Allow enhanced processability and control viscosity • Formulated without Prop 65 listed components • Maintain physical properties • Retain contaminant-free product integrity • Supplied plastisol solutions that improved quality consistency and controlled viscosity • Provided effective global EHS and regulatory support • Enhanced the dispersion of pigments used by customer • Offered dynamic customer service and rapid technical response CORE™ Non-Phthalate Plastisols KEY REQUIREMENTS WHY AVIENT?

AVIENT SOLUTION MEDICAL DEVICE MANUFACTURER C O M P R E S S I O N C O N T R O L L E R H O U S I N G G R I P • Good adhesion to PCTG • Comfortable grip combined with ergonomics • Medical regulation compliance • Provided a medical-grade TPE with excellent bonding to PCTG and good chemical resistance • Improved ergonomics and aesthetics with a soft- touch material • Met medical regulation compliance: FDA21 CFR 177.2600 • Delivered good colorability to ensure a stable esthetic KEY REQUIREMENTS OVERMOLDING + REGULATORY SUPPORT LEARN MORE Versollan Thermoplastic Elastomers Copyright © 2024, Avient Corporation.

PE Tarpaulin manufacturer PP MULTI- FILAMENT MANUFACTURER O U T D O O R C H A I R • Resist UV light degradation in U.S. & European climates for an extended period • Maintain color stability and resist brittleness for a minimum of 3 years • Reliable supplier with good product quality and stable supply • Offered a UV stabilizer for PP multi-filament yarn • Delivered good light fastness • Provided cost effectiveness by combining colorant and UV additive solutions • Had in-house Q-Lab UV (QUV) tester to meet strict customer standards Smartbatch Combination Colorants & Additives KEY REQUIREMENTS WHY AVIENT?

CABLE GUARD C O M P O U N D A R C H E R Y B O W • Consistent quality that withstands extreme outdoor conditions • Dimensional stability to improve durability and extend product life • Lightweight material for easy customer handling • Strong, long-lasting quality • Maintained stiffness and straightness while upholding performance and aesthetic specifications • Provided dimensional stability necessary for outdoor applications • High strength-to-weight ratio enabled high performance without adding significant weight Glasforms™ Pultruded Carbon Fiber Rod KEY REQUIREMENTS WHY AVIENT?

STRUCTURAL DECKING R E I N F O R C E D H D P E L U M B E R • Reinforcement to improve strength of HDPE decking • Composite tape compatible with HDPE for strong adhesion • Low thermal expansion • Domestic (U.S.) supply and manufacturing • Added strength to HDPE deck boards to enable industry-leading load capacity and joist spacing spans • Extended product life with superior adhesion of PE tape via co-extrusion • Improved supply reliability with product manufactured in Englewood, CO Polystrand™ unidirectional thermoplastic composite tape KEY REQUIREMENTS WHY AVIENT?