Continuous Glucose Monitors (CGM) Advanced Mobility Composite Structures Make your lab and POCT in vitro diagnostic devices safe, accurate and easy to use with healthcare dedicated color and additive polymer solutions and thermoplastics.

Waste Minimization: Composites Depending on the material, our composite and fiber solutions may run into challenges in finding outlets for waste to divert from landfill. The plan includes a range of options, including repurposing scrap composite rods as fence posts, recycling of scrap glass, and recycling of composite finished goods.

Thermoplastic Elastomers Continuous Glucose Monitors (CGM) Advanced Mobility Composite Structures

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. PRIOR YEAR $790 $710 2022 2023 $107 $112 2022 2023 Sales Adjusted EBITDA (in millions) $0.42 $0.47 2022 PF 2023 Adjusted EPS (in millions) - 10% + 5% + 12% Sales Adjusted EBITDA Adjusted EPS 12 $112 $500 Q4 FY $0.47 $2.30 Q4 FY Q4 AND FULL YEAR 2023 GUIDANCE $710 $3,130 Q4 FY Sales Adjusted EBITDA Adjusted EPS 13 (in millions) (in millions) Guidance: Free Cash Flow $180 $180 Prior Guidance Guidance FREE CASH FLOW & INCREASED DIVIDEND 13th Consecutive Dividend Increase 0.16 0.26 0.42 0.58 0.79 0.85 0.99 1.03 2011 2013 2015 2017 2019 2021 2023 2024 14 S U S T A I N A B I L I T Y D AY R E C A P SUSTAINABILITY AS A GROWTH DRIVERLONG-TERM REVENUE GROWTH DRIVERS 60%+ Key Growth Drivers Sustainable Solutions Composites, Healthcare, Asia / LATAM Overlap Other (GDP Growth) Total Company Revenue Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Composites 8–10% Healthcare 8–10% Asia / LATAM 5% Other (GDP growth) 0–2% Avient 6% 17 SUSTAINABILITY TRENDS DRIVE LONG-TERM GROWTH 8-12% Long Term Growth 50 90 2022 2030 Medical Plastics Market Size (in $Billions) 2020 2030 Recycled Plastics Virgin Plastics Growing Demand for Recycled Content Avient Sustainable Solutions 18 46 2023 2032 Global Offshore Annual Wind Installations (in Gigawatts) Sources: McKinsey, Bloomberg, Grand View Research SUSTAINABILITY TRENDS DRIVE LONG-TERM GROWTH 18 • Transformative acquisitions combined with divestitures of more cyclical businesses have improved margins over 400 bps since 2018 • 20% long-term margin goal to be driven by key growth drivers, with sustainable solutions playing a meaningful role 5.4% 11.5% 16.0% 2006 2018 2023E Recovery Growth Drivers Strategic Objective 20%+ +1%+ +3%+ ADJUSTED EBITDA MARGIN EXPANSION 19 • 6% annualized long-term sales growth leveraging sustainable solutions, composites, healthcare, and emerging regions • Expand EBITDA margins to 20% • Deliver annual EBITDA and EPS growth of 10% and 15% • Maintain asset-light, 80% free cash flow conversion profile and be valued as a specialty formulator • Continue fostering our Great Place to Work® culture CRE AT ING A WORL D-CL AS S S US TAINABL E ORGANIZ AT ION 20 Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results. We also monitor earnings (defined as net income from continuing operations) before interest, taxes, depreciation and amortization (EBITDA) and adjusted EBITDA (EBITDA before the impact of special items) as a supplement to our GAAP measures.

FIBER-LINE™ PERFORMANCE ENHANCING COATINGS PRODUCT SELECTION GUIDE FIBER-LINE™ COATING SELECTION GUIDE COATING Bondcoat™ Adhesion Enhancing Colorcoat™ Fiber Color Packcoat™ Performance Enhancing Protexcoat™ UV Resistant Swellcoat™ Blocker Water Blocking Swellcoat™ Water Absorbing Wearcoat™ High Abrasion Blockcoat™ Anti-Wicking Repelcoat™ Water Repellant Flamecoat™ Flame Resistant FEATURES • Created for applications where an untreated fiber does not have the ability to provide the appropriate amount of bonding characteristics to another material • Provides adhesion to another fiber or substrate without impacting other performance properties • Improves adhesion of the fiber to the resin matrix it is introduced into • Enables industry standard “burst” tests or stringent delamination analysis • Designed to achieve vibrant colors for safety, identification, and aesthetics • Specialized formulas and binders adhere the pigment to the exterior of the individual filaments, while impregnating deep into the fiber bundle • Available by Pantone or RAL number • Compatible with a variety of composite resins including epoxy, polyurethane, and polyethylene • Stronger than solution-dyed fibers • Designed to add lubricity and temperature resistance at the filament level for braided compression packing • Coating at the fiber level versus the finished braid achieves higher % level coating • Fiber level coating extends the life of the braid and reduces required maintenance • Various formulations available • PTFE, silicone, graphite, and mineral oil • Created for high performance fibers that lack inherent ultraviolet (UV) resistance • Coating impregnates the individual fibers with a specialized resin for improved UV protection • Coating enhancements include UV inhibitors, absorbers and stabilizers • Improves the processing of the product via reduced filament snagging and friction • Low level water- blocking finish for any technical fiber or textile substrate • Provides water- blocked strength reinforcements for dry cable designs • Can absorb 5x to 15x its weight in water • Dust-free coating imparts a very soft fiber hand, advantageous to cable, rope, and other textile processes • Patented technology incorporates super absorbent polymer (SAP) suspended in a proprietary resin matrix • Used in the production of ‘dry-dry’ telecommunications, electromechanical, seismic, umbilical and power cables • Can absorb up to 100x its weight in water • Creates a stable gel when exposed to water • Functionally replaces flooding compounds, filling gels, spun SAF yarns, and water blocking tapes • Enables faster, more economical and robust cable manufacturing • Increases durability and abrasion resistance by encapsulating filaments in the fiber bundle • Extends the life of the product by reducing the effects of friction and yarn on yarn abrasion • Protects the fiber from degradation and filamentation • Ideal for high abrasion and high friction applications in a range of fiber constructions and environments • Wicking refers to the tendency of a yarn or other fiber to draw moisture into filaments via capillary action • Coatings designed to prevent moisture from wicking within and between fibers and strands • Protects Wire or Optical Fiber from damaging effects of moisture, which can cause a drop in signal and attenuation • Hydrophobic additives used to promote and enhance water repellancy in industrial applications • Creates a waterproof barrier that prevents moisture from further migration • Applied at various % levels to optimize for water-proof ratings • Designed to inhibit or slow the spread of fire/flame • Coupled to fibers with inherent flame and thermal resistance to boost performance • Added to fibers with weak flame resistance to improve burn rating SUITABLE FIBERS • Kevlar ® Para-Aramid • Nomex® Meta-Aramid • Vectran® LCP • Zylon® PBO • Technora® Fiber • Carbon Fiber • Kevlar ® Para-Aramid • Nomex® Meta-Aramid • Vectran® LCP • PET Polyester • Fiberglass • UHMWPE • Kevlar ® Para-Aramid • Nomex® Meta-Aramid • Carbon Fiber • Graphite Fiber • Fiberglass • PTFE Fiber • Kevlar ® Para-Aramid • Vectran® LCP • Zylon® PBO • Technora® Fiber • Kevlar ® Para-Aramid • Vectran® LCP • Zylon® PBO • PET Polyester (All shrinks) • UHMWPE • Kevlar ® Para-Aramid • Vectran® LCP • Zylon® PBO • Technora® Fiber • Fiberglass • PET Polyester (All shrinks) • Kevlar ® Para-Aramid • Vectran® LCP • Zylon® PBO • Carbon Fiber • PET Polyester (All shrinks) • UHMWPE • Kevlar ® Para-Aramid • Vectran® LCP • Zylon® PBO • Carbon Fiber • PET Polyester (All shrinks) • Fiberglass • Kevlar ® Para-Aramid • Vectran® LCP • Zylon® PBO • Carbon Fiber • PET Polyester (All shrinks) • Fiberglass • Kevlar ® Para-Aramid • Vectran® LCP • Zylon® PBO • PET Polyester (All shrinks) PRODUCTS • Belt & Hose Reinforcement Yarn • Strength Members • Industrial Fabric Yarn • Wire Harness Yarn • Ripcords • Strength Members • Wire Harness Yarn • Industrial Fabric Yarn • Braided compression rings and seals • Valve stem packing • Pump packing • Strength Members • Industrial Fabric Yarn • Wire Harness Yarn • Strength Members • Ripcords • Binder Yarn • Filler Yarn • Synthetic Wire Rope • Buffer Thread • Binder Yarn • Filler Yarn • Strength Members • Ripcords • FRP Rod • Ripcords • Strength Members • Synthetic Wire Rope • Industrial Fabric Yarns • Wire Harness Yarns • Ripcords • Strength Members • Binder Yarn • Industrial Fabric Yarns • Wire Harness Yarns • Ripcords • Strength Members • Binder Yarn • Industrial Fabric Yarns • Wire Harness Yarns • Industrial Fabric Yarns • Wire Harness Yarns • Strength Members Kevlar ® and Nomex® are trademarks of DUPONT SAFETY & CONSTRUCTION, INC. MOVING HIGH PERFORMANCE FIBERS FORWARD Our wide variety of performance enhancing coatings are developed to improve the natural characteristics of synthetic fibers. Fiber-Line Performance Enhancing Coatings feature: • 100% water based or non-solvent resin formulations • Carefully selected, regulatory compliant raw materials and chemicals • Custom formulations designed to meet specific application requirements • Formulations designed for compatibility with specific fiber substrates or processing conditions Contact us today to determine the fiber-based solution that is right for your product.

Thermoplastic Elastomers Dynaflex™ Thermoplastic Elastomers OnFlex™ Thermoplastic Elastomers

Advanced Composites Explained Edgetek™ Glass-Filled Thermoplastics provided toughness and stiffness to fishing rod handle Continuous Glucose Monitor

Advanced Composites Explained Edgetek™ Glass-Filled Thermoplastics provided toughness and stiffness to fishing rod handle Continuous Glucose Monitor

Versollan™ Thermoplastic Elastomers Thermoplastic Elastomers: GLS™ Recycled Content Thermoplastic Elastomers: reSound™ REC

OnFlex™ Thermoplastic Elastomers OnFlex™ Thermoplastic Elastomers - Industry Bulletin Thermoplastic Elastomers: GLS™ Versaflex™