PHONE CASE MANUFACTURER P H O N E C A S E • Formulated TPE with 43% bio-based content plus favorable UV resistance and vibration damping performance compared to standard TPE • Received radiocarbon (C14) international certificate for bio-based content • Provided excellent bonding ability with good aesthetics • Matched design specs with an easily colored material using traditional TPE colorants reSoundTM OM TPEs WHY AVIENT?

Dynaflex G - Chair Lumbar Support LEADING SEATING MANUFACTURER C H A I R L U M B A R S U P P O R T • Superior tensile strength to minimize stretching • Good aesthetics including look, feel and color consistency • Ability to meet aggressive customer timeline • Engaged technical service teams early to review material and application requirements, expediting lead time • Conducted in-person technical support and coaching during mold trials and production in Tijuana, Mexico • Enabled customer to achieve consistent product appearance by determining the ideal let down ratios for the existing color concentrate Dynaflex™ G KEY REQUIREMENTS WHY AVIENT?

AVIENT OVERVIEW OUR VISION: Creating specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world 2023 Financial GuidanceCompany Overview 2022 Pro Forma Revenue By: 9,700 Employees 104 Manufacturing Sites 20,000+ Customers Key Highlights  Premier formulator of specialized and sustainable material solutions  Asset-light business model, with flexibility to adapt to customer needs  Best-in-class technology and service (140+ PhDs / 2,500+ patents)  History of transformation through successful M&A while consistently returning cash to shareholders  Poised for continued future growth in excess of GDP $3.4B Revenue $2.40 $530M Adjusted EBITDA 15.6% Adjusted EBITDA Margins $200M Free Cash Flow 2.9x Net Leverage Over $1B in share buybacks since 2011 Raised dividend for 12 consecutive years, a 16% CAGR since 2011 Geography Segment Industry U.S. & Canada 64% 36% Specialty Engineered Materials Color Additives and Inks 37% 9% 4% 4% Building & Energy Telecom 4 CREATING A WORLD-CLASS SUSTAINABLE ORGANIZATION 1. 6.5% annualized long term sales growth leveraging sustainable solutions, composites, healthcare and emerging regions 2. FX -11% FX -3% Total Avient -14% YoY Comparison against 2022 pro forma results • Aging infrastructure driving need for greater technological advancements and upgrades • Increased focus on strength and capacity of electrical grid plays into further adoption of composites into the market  UV, weather-resistance, customized capabilities  Best-in-class customer responsiveness  Local high-quality manufacturing, unparalleled breadth of portfolio  Expanding position in insulators, utility poles, crossarms, and wind energy Avient Confidential 16 ENERGY 16 • Fiber-optic investments from AT&T, Corning, Commscope continue to drive industry toward innovation • $42B BEAD program in Infrastructure Bill to increase cable deployments; well-positioned to capitalize on “Made in America” requirement and “last mile” buildout  Flame retardance, weather-resistance enables faster, safer, more reliable connections  Local manufacturing, unparalleled breadth of portfolio  Expanding position in insulation for wire jacketing, 5G buildout TELECOMMUNICATIONS Source: U.S. National Defense budget of $842 billion submitted to Congress in Q1 2023 • European NATO members annual defense spend expected to increase by up to 20%  Dyneema® is the world’s strongest fiber™  One of the highest strength to weight ratios of any material on Earth  Direct relationships with industry leading armor manufacturers  Resistant to most chemicals, UV, and moisture to handle any environment Avient Confidential 18 DEFENSE Source: US Department of Defense, defense.gov, NATO18 Source: TRANSPORTATION • Increased EPA regulations requiring improved fuel efficiency, enabled in part by lower-weight vehicles • Automakers preparing for 2/3 of U.S. vehicles to be 100% electric by 2032  Lightweight panels that establish both strength and stiffness resulting in decreased energy usage, lower emissions  Long-lasting Color applications to resist UV exposure, temperature fluctuations and exceed the stylistic requirements of global automakers 19 $130 $530 $0.60 $2.40 2023 GUIDANCE 20 Sales Adjusted EBITDA $845 $3,400 (in millions) (in millions) CASH FLOW / LEVERAGE 21 • Maintaining free cash flow and leverage guidance from February earnings call • IT investment to further integrate acquired businesses and capture operational efficiencies • Restructuring actions to streamline operations and improve profitability, primarily in Europe ($ millions) 2023E Cash Flow from Operating Activities 350$ Less: Run-Rate CapEx (110) CapEx for IT System Upgrade (25) CapEx for Restructuring (15) Total CapEx (150) Free Cash Flow 200$ Adjusted EBITDA 530$ Net Debt / Adjusted EBITDA 2.9x LONG-TERM REVENUE GROWTH DRIVERS Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Healthcare 8–10% Composites 10% Asia / LATAM 5% Other (GDP growth) 2–3% Avient 6.5% 22 Sustainable Solutions 32% Asia / LATAM Composites Other (GDP Growth) 39% • Virtual presentation to be held September 20, 2023 • The company will be conducting an investor-focused presentation around our sustainability solutions portfolio Avient Confidential 23 SUSTAINABILITY INVESTOR DAY 23 $340M $405M $455M $550M $790M $915M 2016 2017 2018 2019 2020PF** 2021 2022PF*** SUSTAINABILITY FOR A BETTER TOMORROW Revenue From Sustainable Solutions* 2016-2022 ($ in millions) Organic Future Growth Revenue Assumptions From Sustainable Solutions: 8 - 12% 24 *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) **2020 is Pro Forma to include full year of the Clariant Color business ***2022 is Pro Forma for the acquisition of Avient Protective Materials and the divestiture of Distribution $1,175M Lightweighting Eco-Conscious Recycle Solutions VOC Reduction Sustainable Infrastructure Human Health & Safety Reduced Energy Use Bio-polymers SUSTAINABILITY NEEDS BY MARKET B&C • Eco-Conscious • Carbon footprint • Resource conservation • Carbon footprint • Bio based content • Eco-Conscious Automotive • Light weighting • Recycled Content • VOC reduction • Recycle Solutions • Carbon Footprint Packaging • Recycle Solutions • Food waste reduction Common Theme: CO2 Emission Goals Increasing Single-Use Plastic Regulation 25 INVESTING IN INNOVATION S U S T A I N A B I L I T Y P O R T F O L I O 26 AP P EN D IX 29 RAW MATERIAL 2022 ANNUAL PURCHASES Performance Additives Pigments 12% TiO2 Dyestuffs 2% Polyethylene Nylon Polypropylene Styrenic Block Copolymer Other Raw Materials 33% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials • Cost inflation decelerating, particularly for hydrocarbon-based raw materials 2022 pro forma results for the acquisition of Avient Protective Materials SEGMENT DATA U.S. & Canada 37% 2022 PRO FORMA SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Building and END MARKET REVENUE $2,355M $402M $1,300M $272M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $592M$3,653M (1) 9% 31 (1) Total company sales and adjusted EBITDA of $3,653M and $592M, respectively, include intercompany sales eliminations and corporate costs C O L O R , A D D I T I V E S & I N K S 2022 REVENUE | $2 .4 B ILL ION 34% 38% END MARKET REGION 32 34% 21% Building & 1% Energy 2% S P E C I A LT Y E N G I N E E R E D M AT E R I A L S 2022 PRO FORMA REVENUE | $1 .3 B ILL ION END MARKET 52% 35% REGION 33 19% 8%Industrial 9% Defense Building & 32% 27% 14% Building & 3% 1% Defense 1% (18% of sales) 9% 2022 PROFORMA AVIENT REGIONAL SALES BY END MARKET 27% 14% 17% Building & (37% of sales)Transportation 12% Building & US & Canada (40% of sales) 56% 23% Building & 1% LATAM (5% of sales) 3% 34 PEER COMPARISONS AVIENT IS ASSET LIGHT Capex / Revenue 2023E (%) Avient Specialty Other Specialty / Note: Avient reflects 2023 estimated revenue of $3,400 and estimated run-rate CAPEX of $110M. 36 4 4 4 6 8 9 FREE CASH FLOW CONVERSION Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA.

FlexSpring can replace existing insoles in athletic shoes currently on the market, or they can be integrated into the athletic shoe manufacturing process as part of the midsole.

Low and stable εr • Ultra-low loss • Low water absorption • Hydrolysis resistant • Excellent impact strength • Mass production friendly APPLICATION BULLETIN A PREPERM radome grade gives you a longer and wider scanning range compared to common resins. 40 m Comparison of PREPERM radome grade and common resin at 24 GHz and 79 GHz bands Common Resin Common Resin PREPERM™ RB260 PREPERM™ RB260 PARAMETER PBT+GF PEI PREPERM RADOME GRADE ELECTRICAL εr @ 77 GHz 3.5–4.2 3.1 2.6 Tan @ 77 GHz 0.03 0.003 0.003 Isotropic @ 77 GHz No Yes Yes MECHANICAL Impact strength -20°C/+23°C notched izod 6kJ/m2/6kJ/m2 6kJ/m2/6kJ/m2 25kJ/m2/35kJ/m2 Elongation @ break 3% 40% 22% Brittleness Yes Yes No THERMAL Max use temp (HDT) 200–220°C 190–200°C 150–180°C Inherent flammability HB V0 V1 to V0 ENVIRONMENTAL Water absorption 0.4% 1.25% 0.2% Chemical resistance Good Excellent Good Hydrolysis resistant Specific Grade Yes Yes MANUFACTURING Batch-to-batch consistency Limited Excellent Excellent Moldability Excellent Good Good Abrasive Yes No No Mold shrinkage Inconsistent, warpage issue Homogenous Homogenous Raw material price Low High Moderate Copyright © 2022, Avient Corporation.

For more than 50 years, closurelogic GmbH has been manufacturing aluminum closures in Germany.

This also eliminated an additional production step and helped streamline manufacturing.

Learn more about phthalates at: ChemicalSafetyFacts.org AmericanChemistry.com PHTHALATES HAVE BEEN CAREFULLY RESEARCHED A large amount of research on phthalates has been conducted by universities, government agencies, manufacturers and independent test laboratories.

APPLICATION BULLETIN MagIQ™ Nonwoven Electret Additives for Protective Face Masks Electret additives are used in the manufacture of nonwovens for protective face masks to impart long- lasting filtration properties.

For converters manufacturing bottles for oxygen sensitive beverages such as juices or teas and sauces, Amosorb 4020R is a unique masterbatch solution offering a reliable, cost effective oxygen scavenging performance, while giving freedom of usage for many different grades of rPET up to 100% in content.