How does Avient help reduce carbon footprint? We enable a lower carbon footprint through lower carbon footprint technologies, improved recyclability, increased recycle content, and bio-derived solutions. To date we have completed over 1,000 product carbon footprint calculations.

Cesa™ Anti-Block Slip LS Additives for low-temperature sealing layers in flexible polyolefin packaging FOOD PACKAGING IN A CHANGING MARKET In many food contact applications, flexible plastic packaging is replacing rigid packaging for varied reasons; it has lightweight characteristics, is easy to customize in any shape, and has a favorable carbon footprint.

KEY CHARACTERISTICS • Contains 51–59% recycled content, with a minimum of 37% from PCR sources, including closed-loop feedstock • Provides comparable performance to virgin TPEs - Good UV stability - Meets VIAQ standards for odor and fogging • Supports compliance with the ELV Directive • Provides a more sustainable alternative to virgin TPE grades and supports a reduction in product carbon footprint (PCF) • Can be injection molded and overmolded onto PP KEY APPLICATIONS The reSound REC TPEs – AF 7210 series has been developed for use in automotive interior applications such as cup holder mats, phone charging mats, peddle covers, boot/trunk lining, HVAC flaps and other center console parts.

Nikrant Page 67 United States 36% Europe 36% Canada 2% Asia 20% Latin America 2011 Revenue: $0.6 Billion2011 Revenue: $0.6 Billion SolutionsSolutions At a Glance Global Specialty Engineered Materials Appliance 6% Building & Construction 3% Wire & Cable 14% Electrical & Electronics 14%Consumer 21% Packaging 5% Industrial 8% Misc. 3% HealthCare 5% Transportation 21% America 6% 2011 Revenue by Industry Segment2011 Revenue by Industry Segment 1.1% 1.3% 3.4% 5.1% 9.6% 8.0% 12-16% 2006 2007 2008 2009 2010 2011 2015 Operating Income % of Sales Target Expanding ProfitsExpanding Profits Page 68 Value Proposition • GSEM is a global leader providing complete specialty solutions encompassing innovative technologies and services to enable customer success Transformation Highlights • Dramatic turnaround of the Engineered Materials business through mix improvement and specialty focus Value Proposition and Transformation Highlights Global Specialty Engineered Materials improvement and specialty focus • GLS acquisition successfully integrated, having more than doubled earnings in 3 years • PolyOne culture and strategy now engrained worldwide • Expansion into healthcare with dedicated resources > $15B Addressable Market Page 69 • Polymer design, formulation and service expertise • Broad, global technology base and regional centers of excellence • Ten innovation centers around the world Key Differentiators Global Specialty Engineered Materials • Ten innovation centers around the world • Specialty brand leadership with PolyOne, GLS, NEU and ECCOH • Ability to leverage global key account team Page 70 From Volume Commodity-driven product portfolio To Value Specialty technology and solutions EM North America Transformation Volume Sales Gross Margin $ Mix Transformation – Executing the Strategy Global Specialty Engineered Materials 2006 2011 2006 2011 2006 2011 Page 71 $12 $29 Operating Income ($ in millions) • Provided access to new customers in specialized, high-growth markets such as healthcare and consumer • Strategic partner to many of the world’s best-known companies GLS Integration Success 16.9% 8.2% 2007 2011 2007 2011 Working Capital % of Sales • Complementary global footprint provided additional cross-selling opportunities • Opportunity to expand margins and drive working capital improvement while remaining customer-focused Page 72 $1.3 $27.6 2006 2011 Healthcare Revenue • Investment in dedicated healthcare team to drive penetration and growth • Leverage product portfolio globally & win specialty business Areas of Focus Global Specialty Engineered Materials $10.5 $117.9 2006 2011 Consumer Revenue 2006 2011globally & win specialty business in targeted markets • Aggressively commercialize specialty innovation platforms • Utilize our innovation centers to influence OEM design (Revenue in $ millions) Page 73 • Carbon Nanotube Formulations � Applications: Semiconductor equipment, hard drives � Customer benefits: Scrap cost reduction and clean conductivity • Thermally Conductive Solutions Applications: Sockets and bulb holders for LED lighting Key Innovations Global Specialty Engineered Materials � Applications: Sockets and bulb holders for LED lighting � Customer benefits: Cost reduction, energy saving, and design flexibility • FDA-Regulated TPEs � Applications: Food packaging seals, intravenous delivery systems, medical stoppers, prefilled syringes � Customer benefits: Clean and safe elastomers for highly regulated applications Page 74 Critical Imperatives and 2015 Goal Global Specialty Engineered Materials Critical Imperatives • Commercialize critical new technology platforms • Manage the mix as we continue to drive the transformation • Global translation of commercial successes 2015 Goal • 12 - 16% return on sales Page 75 Page 76

Examples include: • 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 • Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy • 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 Avient is certified ACC Responsible Care®, a founding member of the Alliance to End Plastic Waste and certified Great Place to Work®.

Compliance Programs • At least annually review the programs and procedures established by the Company that monitor compliance with the Company’s policies, standards and practices, and laws and regulations with respect to safety, health, environmental, physical security and product stewardship, including providing oversight of the systems that are in place to monitor and mitigate the Company’s carbon footprint and physical risks associated with climate change; • Periodically review with management the significant safety, health, environmental, physical security, and product stewardship risks or exposures faced by the Company, if any, and steps taken by management to minimize such risks and exposures to the Company and its constituencies; • At least annually review the status of the Company’s environmental and safety audit process, assessing compliance with Company policies, standards, practices, laws and regulations; and • Periodically review claims, demands, administrative orders and legal proceedings against the Company regarding safety, health, environmental, physical security and product stewardship matters.

Carbon black is a form of paracrystalline carbon that has a high surface-area-to-volume ratio. IARC’s listing of carbon black as a Group 2B carcinogen is based on laboratory rat studies only; studies on carbon black production workers have not shown a link between carbon black exposure and cancer. Consumer exposure to carbon black is negligible.

CARBON FIBER FIBERS PROCESSES PRODUCTS Molecular Structure Chemical Name Carbon, Graphite. The precursor undergoes several processes including carbonization and oxidation which produces high tensile & modulus carbon fiber filaments. Carbon fiber can also be produced from other carbon-rich precursors such as Pitch & Rayon.

Carbon Fiber Reinforced Rods, Bars and Laminates For Strengthening, Stiffening and Lightweighting Carbon fiber reinforced polymer (CFRP) products from Avient are continuous fiber polymer rods, bars and laminates used in a variety of structural strengthening, engineered weight reduction, and repair applications in multiple industries. VALUE SOLUTION Superior strength-to-weight ratio and rigidity for demanding applications Carbon fiber reinforced products have excellent tensile strength, corrosion resistance, and light weight properties, as well as high modulus of elasticity and excellent fatigue resistance. To learn more about Avient carbon fiber reinforced polymer solutions, contact Avient at +1.844.4AVIENT (1.844.428.4368) • Maximum thickness of 0.625 in/1.59 cm • Full machining capabilities available

Examples include: • 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 • Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy • 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 Avient is a certified ACC Responsible Care® and a founding member of the Alliance to End Plastic Waste. vehicles to be 100% electric by 2032 Where Avient Wins:  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 18 $130 $530 Q2 FY $0.60 $2.40 Q2 FY 2023 GUIDANCE 19 Sales Adjusted EBITDA $845 $3,400 Q2 FY Adjusted EPS (in millions) (in millions) CA SH FLOW / LEV ER AGE 20 • Maintaining free cash flow and leverage guidance from February earnings call • IT investment to further integrate acquired businesses and capture operational efficiencies • Restructuring actions to streamline operations and improve profitability, primarily in Europe ($ 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 DRI VERS 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% 21 Sustainable Solutions 32% Asia / LATAM 15% Composites 8% Healthcare 6% 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 22 SUSTAINABILITY INVESTOR DAY 22 $340M $405M $455M $550M $790M $915M 2016 2017 2018 2019 2020PF** 2021 2022PF*** SUSTA INAB ILITY F OR A BETTER TOMOR ROW Revenue From Sustainable Solutions* 2016-2022 ($ in millions) Organic Future Growth Revenue Assumptions From Sustainable Solutions: 8 - 12% 23 *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 SUSTA INAB ILITY NEEDS BY M ARKET B&C • Eco-Conscious • Carbon footprint • Resource conservation Healthcare • Carbon footprint • Bio based content • Eco-Conscious Automotive • Light weighting • Recycled Content • VOC reduction Consumer • Recycle Solutions • Light weighting • Carbon Footprint Packaging • Recycle Solutions • Light weighting • Food waste reduction Common Theme: CO2 Emission Goals Increasing Single-Use Plastic Regulation 24 I NV ESTI NG I N INNOVATI ON S U S T A I N A B I L I T Y P O R T F O L I O 25 A P P E N D I X 28 RAW MATERIAL 2022 ANNUAL PURCHASES Performance Additives 16% Pigments 12% TiO2 10% Dyestuffs 2% Polyethylene 11% Nylon 6% Polypropylene 5% Styrenic Block Copolymer 5% 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 40% EMEA 37% Asia 18% Latin America 5% 2022 PRO FORMA SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 20% Packaging 24% Industrial 15% Building and Construction 10% Telecommunications 4% Energy 4% Defense 6% END MARKET REVENUE $2,355M $402M $1,300M $272M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $592M$3,653M (1) Transportation 9% Healthcare 8% 30 (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 2 0 2 2 R E V E N U E | $ 2 . 4 B I L L I O N US & Canada 34% EMEA 38% Asia 20% Latin America 8% END MARKET REGION 31 Packaging 34% Consumer 21% Healthcare 8% Industrial 15% Transportation 8% Building & Construction 11% Telecommunications 1% Energy 2% S P E C I A L T Y E N G I N E E R E D M A T E R I A L S 2 0 2 2 P R O F O R M A R E V E N U E | $ 1 . 3 B I L L I O N END MARKET US & Canada 52% EMEA 35% Asia 13% REGION 32 Packaging 5% Consumer 19% Healthcare 8%Industrial 16% Transportation 10% Telecommunications 10% Energy 9% Defense 15% Building & Construction 8% Packaging 32% Consumer 27% Healthcare 8% Industrial 14% Building & Construction 5% Telecommunications 3% Energy 1% Defense 1% Asia (18% of sales) Transportation 9% 2 0 2 2 P R O F O R M A AV I E N T R E G I O N A L S A L E S B Y E N D M A R K E T Packaging 27% Consumer 14% Healthcare 5% Industrial 17% Building & Construction 10% Energy 5% Defense 8% EMEA (37% of sales)Transportation 11% Packaging 13% Consumer 24% Healthcare 12% Industrial 15% Building & Construction 13% Energy 5% Defense 5% US & Canada (40% of sales) Transportation 7% Packaging 56% Consumer 23% Healthcare 4% Industrial 7% Building & Construction 4% Telecommunications 1% LATAM (5% of sales) Transportation 5% Telecommunications 3% Telecommunications 6% 33 PEER COMPARISONS AV I E N T I S A S SE T L I G H T Capex / Revenue 2023E (%) Avient Specialty Formulators Other Specialty / Chemical Companies Source: Peer data per Bloomberg as of April 28, 2023 Note: Avient reflects 2023 estimated revenue of $3,400 and estimated run-rate CAPEX of $110M. 35 3 2 3 3 4 4 3 3 5 5 5 6 7 9 A vi e n t K W R P P G F U L R P M A V Y F M C H U N H X L C E E C L A S H E M N S C L F R E E C A S H F LOW C O N V E R S I O N Source: Peer data per Bloomberg as of April 28, 2023 Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA.