Additionally, Adjusted EPS excludes the impact of special items and amortization expense associated with intangible assets. 2 O P E N I N G R E M A R K S B O B P A T T E R S O N C H A I R M A N , P R E S I D E N T A N D C E O 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 4 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 C R O S S S E L L I N G O P P O R T U N I T I E S Wired Connections CONSTANT COMMUNICATION Syncure™ Cross-linkable Wire & Cable Formulations5 6 AVIENT PROTECTIVE MATERIALS C R O S S S E L L I N G O P P O R T U N I T I E S 6 Q 3 P E R F O R M A N C E 15.4% 16.3% 2022 PF 2023 Results vs.

Versaflex™ CE for 5G TPEs, providing signal transparency for mobile device accessories

Thermoplastic Elastomers: GLS™ Versaflex™

VERSAFLEX(TM) 9555-1 NATURAL BASE

Versaflex™ HC Thermoplastic Elastomers are formulated to meet demanding healthcare device and application challenges without phthalate plasticizers. Versaflex™ PF Tack Layer for Surface Protective Films lower VOC emissions during manufacturing and eliminate secondary coating and drying operations. Formulations are > 20% recycled content HOME | Contents | Message from the CEO | Who We Are | People | Products | Planet | Performance | Goals & Metrics | Indices Sustainability Report | 2019 45 https://www.avient.com/products/thermoplastic-elastomers/versaflex-pf-tack-layer-surface-protective-films https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/oncolor-fx-special-effect https://www.avient.com/products/engineered-polymer-formulations/eco-conscious-formulations/edgetek-ld https://www.avient.com/products/engineered-polymer-formulations/high-temperature-polymer-formulations/complēt-long-fiber-reinforced-structural-thermoplastics https://www.avient.com/products/engineered-polymer-formulations/eco-conscious-formulations/nymax-pir-and-resound-r-nd-recycled-nylon-formulations https://www.fiber-line.com/en/products/distribution-program Renewable Energy Renewable energy provides reliable power, reduces greenhouse gas emissions, and conserves natural resources.

Versaflex™ HC Thermoplastic Elastomers are formulated to meet demanding healthcare device and application challenges without phthalate plasticizers. Versaflex™ PF Tack Layer for Surface Protective Films lower VOC emissions during manufacturing and eliminate secondary coating and drying operations. Formulations are > 20% recycled content HOME | Contents | Message from the CEO | Who We Are | People | Products | Planet | Performance | Goals & Metrics | Indices Sustainability Report | 2019 45 https://www.avient.com/products/thermoplastic-elastomers/versaflex-pf-tack-layer-surface-protective-films https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/oncolor-fx-special-effect https://www.avient.com/products/engineered-polymer-formulations/eco-conscious-formulations/edgetek-ld https://www.avient.com/products/engineered-polymer-formulations/high-temperature-polymer-formulations/complēt-long-fiber-reinforced-structural-thermoplastics https://www.avient.com/products/engineered-polymer-formulations/eco-conscious-formulations/nymax-pir-and-resound-r-nd-recycled-nylon-formulations https://www.fiber-line.com/en/products/distribution-program Renewable Energy Renewable energy provides reliable power, reduces greenhouse gas emissions, and conserves natural resources.

Available with customized cosmetic films and scrims

Healthcare TPEs: Versaflex™ HC

W H AT W E D O : W E A R E A F O R M U L ATO R 6 CUSTOM FORMULATION N O V E M B E R 2 , 2 0 2 3 W E B C A S T P R E S E N T AT 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 C R O S S S E L L I N G O P P O R T U N I T I E S Wired Connections CONSTANT COMMUNICATION Syncure™ Cross-linkable Wire & Cable Formulations9 10 AVIENT PROTECTIVE MATERIALS C R O S S S E L L I N G O P P O R T U N I T I E S 10 Q 3 P E R F O R M A N C E 15.4% 16.3% 2022 PF 2023 Results vs.

Co-extrusion film and wire & cable