The company noted it will provide more details on its second quarter results and outlook during the webcast scheduled for 8:00 a.m. Refer to Attachment 7 Reconciliation of Non-GAAP Financial Measures for details regarding adjustments to previously reported results to arrive to the pro forma financial metrics. Webcast Details The webcast can be viewed live at avient.com/investors, or by clicking here: https://edge.media- server.com/mmc/p/p4owuchb.

Successful supplier relationships make Avient the preferred provider of specialized materials, services, and solutions. Detailed requirements relating to the product features are defined in the product specifications. Based on the risk of the proposed product or process change, Avient may advise the supplier what level of detail and planning is required.

SHAMPOO BRAND P E T B O T T L E F O R H A I R C A R E • Customized color and anti-UV combination • Provided quick response and local service • Simplified processing without additional equipment investment • Increase innovation capabilities and brand aesthetics OnColor™ Frost PET Effect KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION PAINT REPLACEMENT 1Avient Corporation LEARN MORE • Offer soft, gentle appearance and better touch feeling • Customized color and anti-UV combination to enhance aesthetics and functional properties • Ease of processing https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/oncolor-fx-special-effect

EXTERNAL FIXATOR DEVICE S T A B I L I Z I N G R O D S • Durable material that withstands everyday use • Light weight for easy customer handling • Precise stiffness to support load requirements and extend product lifetime • Maintained stiffness and straightness necessary for halo applications • Provided superior strength-to-weight ratio vs. metal • Appealed to aesthetics while maintaining high performance needs • Maximized user comfort via customized Avient Design services Glasforms™ Carbon Fiber Rods 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

• Collaborated with Avient Design team for design support and material performance simulation • Provided great service, with support from Color & Additive colleagues in Brazil. AVIENT SOLUTION CHEMICAL RESISTANCE + LIGHTWEIGHTING LEARN MORE © 2023, Avient Corporation, All Rights Reserved. https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/gravi-tech-density-modified-formulations Safety Equipment manufacturer

KUNSTSTOFF SCHWANDEN E L E C T R I C V E H I C L E P A R T • Replace aluminum to reduce part weight and overall weight of the electric vehicle • Secure supply of high volume of material • Flexible delivery • Cost competitive • Enabled OEM to replace metal and reduce part weight • Provided excellent customer service, sending samples and technical data promptly • Supported customer with processing queries • Secured material supply and flexible delivery – delivering on a specific date each month Maxxam™ Polyolefin Formulations KEY REQUIREMENTS WHY AVIENT? All Rights Reserved https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/maxxam-polyolefin-formulations Kunststoff Schwanden

VIROSPACK C O S M E T I C D R O P P E R S • Improved chemical resistance • Hardness 45 – 50 • Natural/transparent color • Food contact compliance • REACH compliance • Provided dedicated customer service resources • Reduced cycle time while maintaining similar mechanical properties • Provided a material with easy molding • Enhanced chemical resistance to oil in extreme conditions Versaflex™ Thermoplastic Elastomer KEY REQUIREMENTS WHY AVIENT? All Rights Reserved. https://www.avient.com/products/thermoplastic-elastomers/versaflex-thermoplastic-elastomers VIRospack

UTG® HUNTING & SHOOTING SPORTS G U N M A G A Z I N E H O U S I N G • Good dimension stability with low warpage at different temperature ranges (70˚C, room temperature, -40˚C) • Good appearance with less glass fiber exposure • Provided durable and impact-resistant glass fiber reinforced formulation with excellent surface finish and good dimensional stability for smooth operation • Passed all temperature durability and drop tests to confirm use in outdoor environments • Collaborated with customer via technology services to accelerate product development Bergamid™ Customized Polyamide Formulation KEY REQUIREMENTS WHY AVIENT? All Rights Reserved. https://www.avient.com/products/engineered-polymer-formulations/structural-fiber-reinforced-formulations/short-fiber-reinforced-formulations

MILITARY AND TACTICAL GEAR MANUFACTURER H O L S T E R • Impact resistance in all temperatures • Strength • Ductility • UV resistance • Easy to process • Color match to specific black color • Supported material selection and provided technical processing expertise through our application development and technical service team • Enabled two-day delivery through regional stocking strategies Nymax™ REC Post-Industrial Recycled Nylon Formulation KEY REQUIREMENTS WHY AVIENT? All Rights Reserved. https://www.polyone.com/products/engineered-polymer-formulations/eco-conscious-formulations/nymax-post-industrial-recycled-nylon-formulations

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? All Rights Reserved. https://www.avient.com/products/vinyl-formulations/vinyl-plastisols-organosols/core-non-phthalate-plastisols