Dyneema®, the world’s strongest fiber™, enables unmatched levels of performance and protection for end-use applications, including ballistic personal protection, marine and sustainable infrastructure and outdoor sports Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation and reduce carbon footprint Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation and fiber optic / 5G network accessibility          

Bergamid-Racing Wheel-Application snapshot_0429 CONSUMER ELECTRONICS BRAND G E A R O F R A C I N G W H E E L • Achieve high strength and abrasion resistance • Deliver smooth, quiet functionality and minimize backlash for improved control • Delivered glass fiber reinforced nylon formulation to meet the requirements for high strength and abrasion resistance • Offered local service and support, which helped to accelerate production • Provided stable supply despite the nylon shortage issues in the market Bergamid™ Polymer Formulation KEY REQUIREMENTS WHY AVIENT?

& Canada EMEA Asia Latin America 64% 36% Specialty Engineered Materials Color Additives and Inks 40% 37% 18% 5% 6% 8% 24% 20% 10% 15% 9% 4% 4% Defense Healthcare Packaging Consumer Building & Construction Industrial Transportation Energy Telecom Geography Segment Industry 4 CREATING A WORLD-CLASS SUSTAINABLE ORGANIZATION 1. 6% annualized long term sales growth leveraging sustainable solutions, composites, healthcare and emerging regions 2. Continue fostering our Great Place to Work® culture Strategic Objectives Long Term Growth Rates Growth Drivers $340 $455 $790 $1,120 2016 2018 2020 2023E $51 $84 $212 $650 2016 2018 2020 2023E $108 $113 $231 $230 2016 2018 2020 2023E $265 $358 $726 $730 2016 2018 2020 2023E 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 2023E EBITDA Margins $0.14 $1.93 $2.30 2006 2014 2023E Adjusted EPS TOP-TIER SUSTAINABILITY PERFORMANCE AND RECOGNITION Industry Sustainability Standards ESG Ratings Performance 1 3 5 87th 94th percentile 5 Innovation is the lifeblood of a specialty company. WHAT WE DO: WE ARE A FORMULATOR CUSTOM FORMULATION 6 N OVE MBE R 2 , 2023 W E BCAS T P RE S E N TAT I O N Complementary technologies and customer relationships offer opportunity to advance commercial strategy Dyneema®, the world’s strongest fiber™, to accelerate growth of sustainable, ultralight and high performance applications AVIENT PROTECTIVE MATERIALS FIRST YEAR 8 Composites comprises over half of Specialty Engineered Materials, compared to 9% in 2016 Proven history of success in areas such as outdoor high performance, defense and sustainable solutions Composites 44% 56% 2023E Sales Collaboration & InnovationComposites as a % of SEM People & Culture Talented, passionate, and creative associates drive continued integration success and allow two cultures to come together as one Avient Lightweight Protective Laminates: PROJECTILE PROTECTION Dyneema® Fiber Solutions Cushioning + Fit + Comfort: LONG-TERM WEAR reSound™ Versaflex™ Thermoplastic Elastomers Strength + Durability + Light-Weighting: SOLID MOUNTING BRACKETS Nymax™ Bergamid™ Complēt™ Engineered Materials Durability + Lubricity: HELMET LATCHES Lubri-One™ Internally Lubricated Polymers Color Consistency and Weatherability CUSTOMIZED SPECIFICATIONS Avient Color and Additive Solutions Antennae Performance FAST, RELIABLE CONNECTIONS PREPERM™ Low-Loss Dielectric Thermoplastics AVIENT PROTECTIVE MATERIALS CROSS SELLING OPPORTUNITIES Wired Connections CONSTANT COMMUNICATION Syncure™ Cross-linkable Wire & Cable Formulations9 10 AVIENT PROTECTIVE MATERIALS CROSS SELLING OPPORTUNITIES 10 Q 3 P E RFO RMAN CE 15.4% 16.3% 2022 PF 2023 Results vs.

CONCRETE REINFORCEMENT I N F R A S T R U C T U R E R E P A I R • Alternative to steel for reduced weight and improved corrosion resistance • Surface modification capabilities to improve concrete adhesion • Superior strength-to-weight ratio • Durable, long-lasting performance to extend service life • Provided peel ply and other surface modification capabilities that comply with specific CA regulations and allowed for better adhesion with concrete • Performed with higher strength-to-weight ratio than typical steel alternatives • Prolonged service life by resisting corrosion and dampening vibration Glasforms™ Carbon Fiber Composites KEY REQUIREMENTS WHY AVIENT? All Rights Reserved. https://www.avient.com/products/advanced-composites/pultrusion-and-continuous-filament-winding-technology/glasforms-pultruded-rods-tubes-custom-profiles

The page below summarizes the common overmolding situations for medical, universal, polypropylene, polyethylene, polystyrene, polycarbonate, acrylonitrile butadiene styrene, nylon and copolyester. Overmolding Polypropylene (PP) Our Dynaflex™ G 7900 Series and OnFlex™ S EH Series are great starting places for your polypropylene overmolding application. 

PERSONAL WATERCRAFT OEM S T E E R I N G C O L U M N • Similar strength performance to existing aluminum assembly • Withstand outdoor UV exposure • Weight reduction for improved performance • Corrosion and moisture resistance • Premium aesthetic • Provided a material that met application load requirements and allowed for part consolidation • Delivered confidence in changing material through design consultation, robust FEA support, and UV customization • Incorporated carbon fiber to support a marketing story Complēt™Hybrid Moisture Resistant Composite KEY REQUIREMENTS WHY AVIENT? All Rights Reserved. https://www.avient.com/products/engineered-polymer-formulations/high-temperature-polymer-formulations/compl%C4%93t-long-fiber-reinforced-structural-thermoplastics

ADVENTURE CAMPER MANUFACTURER W A L L & F L O O R P A N E L S • Ability to customize the face sheet structure, core material, and thickness to meet performance requirements • Lightweight, high strength-to-weight ratio compared to wood and aluminum • UV, chemical, and moisture resistant • Custom formulated the panel construction to meet lightweight, durability, and insulation requirements • Avient engineering team provided on-going material sampling and technical support throughout the development cycle • Ensured the face sheet structure provided a smooth surface finish and good adherence to paint or aluminum fixtures Polystrand™ Thermoplastic Composite Sandwich Panels KEY REQUIREMENTS WHY AVIENT? All Rights Reserved. https://www.avient.com/products/advanced-composites/continuous-fiber-composite-panels/polystrand-thermoplastic-composite-panels

Polypropylene Nucleating Agents Hiformer™ NuAge™  nucleating agents give polypropylene converters added control and efficiency by speeding and regulating the crystallization process.

The new container, to be made from an impact-modified polypropylene, needed good sidewall stiffness and excellent impact resistance. Teams from both companies worked closely to understand the specific property needs, and then searched for an impact modifier solution that the manufacturer could readily blend into polypropylene at the molding machine.

The new container, to be made from an impact-modified polypropylene, needed good sidewall stiffness and excellent impact resistance. Teams from both companies worked closely to understand the specific property needs, and then searched for an impact modifier solution that the manufacturer could readily blend into polypropylene at the molding machine.