If Seller determines that Buyer’s financial responsibility has become impaired or otherwise unsatisfactory to Seller, Seller at its discretion may require advance cash payments, COD, shorter terms, and/or the posting of satisfactory security by Buyer, and may withhold shipments. Seller shall have the right to terminate an order confirmation with immediate effect if at any time prior to delivery, a person or group of persons who are unrelated to the persons controlling Buyer as of the date of the order confirmation, acquires control, through ownership of voting securities or otherwise, over Buyer.

If Seller determines that Buyer’s financial responsibility has become impaired or otherwise unsatisfactory to Seller, Seller at its discretion may require advance cash payments, COD, shorter terms, and/or the posting of satisfactory security by Buyer, and may withhold shipments. Seller shall have the right to terminate an order confirmation with immediate effect if at any time prior to delivery, a person or group of persons who are unrelated to the persons controlling Buyer as of the date of the order confirmation, acquires control, through ownership of voting securities or otherwise, over Buyer.

Vinod Purayath 12:00 SUMMARY: Jamie Beggs 12:20 AVIENT – AN INVESTMENT IN SUSTAINABLE GROWTH: Bob Patterson 12:30 Q&A 1:00 LUNCH 2Avient Corporation Disclaimer Forward-Looking Statements In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. Post-consumer recycled content as percentage of total plastic packaging volume, by weightAvient Corporation 36 37Avient Corporation T O P 5 G A P S T H A T W E A R E A D D R E S S I N G 2: DECONTAMINATION1: COLOR MANAGEMENT 3: MAINTAINING MECHANICAL PROPERTIES 4: MONO-MATERIAL CONSTRUCTION 5: CONSISTENT RECYCLED MATERIAL QUALITY Improving the Use of Recycled Content Avient Corporation 38 39Avient CORPORATION • Inconsistent base color of recycled materials • Lightest color recycled material in high demand for all applications ($$) • Even with clear/transparent materials, color degrades over repeated processing Our Solutions • OpticaTM Toners and Super-concentrated colorants to reduce and mask recycled material discoloration • SmartHeatTM reduces heat history to minimize yellowing • Color Simulation Tool to assist with color space design CHALLENGES OPPORTUNITIES • Stabilization of color fluctuation driven by variable recycled polymer • In-line color correction to optimize customer manufacturing efficiency RECYCLE COLOR QUALITY RANGE Avient Corporation 39 1: Color Management Recycled Material Restricts Color Options With virgin material, we can design across a broad color spectrum The darker the recycled materials, the more color design freedom is restricted This bright yellow is not achievable with high concentrations of dark recycled materials Avient can provide customer guidance on maximum recycle content possible and color concentration required to achieve desired color Avient Corporation 40 Case Study with Brand Owner Recycled Resin = Discolored Base Virgin Resin = Clean Color Base Degree of base discoloration limits recycle content Avient Corporation 41 The Plus Factor Opportunity I N C R E A S E D U S E O F R E C Y C L E D M A T E R I A L R E Q U I R E S M O R E C O L O R A N T A N D A D D I T I V E S Avient Corporation 42 $100M + 2: Decontamination Recycled material feedstocks are contaminated • Feedstock variability supplies the recycle process • Insufficient washing at recycler • Residual labels and printing inks cause quality and NIAS issues • Unpleasant recycled material odor (in processing and the final application) • Clean, food grade, recycled material availability in high demand • Reliable decontamination to reduce NIAS concerns • Full odor removal Our Solutions • CESATM Laser Marking to eliminate contaminating printing inks, labels and glue • AAzureTM process aids and scavengers to enable food and beverage taste purity in PET packaging • ProsureTM range of formulations to enable NIAS compliance and security (customer peace of mind) CHALLENGES NIAS = Non Intentionally Added Substances OPPORTUNITIES Avient Corporation 43 44 3: Maintaining Mechanical Properties • Mechanical properties of recycled materials degrade after multiple heat cycles • Today's recycling protocols only focus on one recycle loop…in reality, there will be several • Legislation and brand owners are targeting higher recycled material ratio incorporation and full circularity • Polymer quality stability over multiple loops to deliver circular recyclability • Stress cracking of recycled bottles • Upgrading performance of lower quality recycled materials • Specification and guided selection amongst highly variable recycled materials Our Solutions • CESATM antioxidants and process aids to enhance physical properties • SmartHeatTM reduces heat history to minimize yellowing • rePrize™ for PET polymer chain repair and extension CHALLENGES OPPORTUNITIES Avient Corporation 44 45 Multi-material packaging is harder to recycle • Contamination of polymer streams • Issues in sorting • Issues in separation • Trend is to restrict multi-material systems in favor of mono-material constructions • Improve recyclability of PET gas barriers • Barrier system development for Polyolefins • Recyclable barrier systems for film and sheet Our Solutions • Portfolio of compatibilizers to enable multilayer constructions • AmosorbTM to extend beverage shelf life by scavenging oxygen through the bottle wall • CaptureTM to extend product shelf life through oxygen scavenging but without contaminating the bottle • Lactra SX TM to prevent light-induced oxidation in liquid dairy products stored at higher temperatures OPPORTUNITIES CHALLENGES Avient Corporation 45 4: Mono-Material Construction 46 Brand Owners require a consistent brand identity • Inconsistent quality streams pose a challenge to delivering homogeneous product quality and aesthetics to the consumer • Brands demand recycled content, but with color/property consistency • Recyclers are challenged to fulfill needs from brand owners and convertors • Specification and selection of recycled material grades for targeted applications • Simulation of recycled material performance in the end-use application • Leverage re-formulation expertise to provide a consistent packaging product (color and mechanical properties) Our Solutions Our Service and Color Expertise differentiate Avient and allow us to support customers throughout the entire design process • Design for use: Color matching, Color design options • Recycle lot selection • Improving mechanical properties • Improving material processing OPPORTUNITIES CHALLENGES Closer customer collaboration to support recycle efforts Avient Corporation 46 5: Consistent Recycle Material Quality 2016 2021E Growth in Sustainable Solutions *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) Revenue From Sustainable Solutions* $340M $930M Avient Corporation 47 Future Revenue Growth Assumptions 8-12% CAGR Avient Corporation 48 Healthcare Cathy Dodd High-Impact, High-Growth Industry Medical Equipment / Devices 33% Drug Delivery 19% Medical Supplies 18% Labware 14% Packaging 8% Remote Monitoring 5% $225 $380 $685 2010 2016 2021E Healthcare Submarkets (2021E) Track Record of Sales Growth Personal Wellness 3% ($ millions) Avient Corporation 49 Our Foundation W E A R E P O S I T I O N E D T O W I N Relationships Innovative Solutions Differentiated Services 50Avient Corporation Trends in Healthcare S H A P I N G I N N O V A T I O N & S O L U T I O N S Improved Wellness & Connectedness Globalization & Localization Increasing Life Expectancy Self Management & Self Administration Technology Driving Diagnostic & Remote Monitoring COVID-19 Protection Avient Corporation 51 • Deep, trusted customer relationships • Well-positioned and entrenched in the Healthcare supply chain • Broad & differentiated capabilities • Positioned to respond & execute quickly COVID - 19 Protection A V I E N T W A S S E T A N D R E A D Y Avient Corporation 52 Aging Population T R E A T I N G C H R O N I C C O N D I T I O N S Of the U.S. population is aged 65 or older… and this number is growing Suffer from one or more chronic health conditions Avient Corporation 53 Aging Population T R E A T I N G C H R O N I C C O N D I T I O N S Increasing Life Expectancy Cardiology • 47% of Americans having at least one of three major risk factors for heart disease Diabetes • 193 million people with Type 2 diabetes and will grow to 252 million by 2026 at a 5% CAGR Neurology • Neurological disorders are the second leading cause of death globally, second only to heart disease Avient Corporation 54 Connected Health E X P A N S I O N O F M E D I C A L W E A R A B L E D E V I C E S Improved Wellness & Connectedness Application Opportunities • Flexible components to provide design aesthetics & proper functionality • Robust designs to meet regulatory requirements and perform over long product lifecycles • Patient comfort to promote ongoing use Avient Corporation 55 Remote Patient Monitoring T R A N S L A T I N G D E V I C E S F R O M H O S P I T A L S E T T I N G S T O H O M E Technology Driving Diagnostic & Remote Monitoring Application Opportunities • Durable, chemically-resistant devices to withstand impact in a home environment and exposure to a variety of household cleaners • Miniaturization of devices to fit into limited space in the home, while maintaining maximum functionality • Innovative, user-friendly designs and long-term aesthetics to provide patients with easy-to-use, high-quality, attractive devices in the home Avient Corporation 56 Self Management & Self Administration E N A B L I N G P A T I E N T S T O M A N A G E H E A L T H Self Management & Self Administration Application Opportunities • Combination of rigid & flexible materials to realize design potential and optimize device functionality • Superior chemical resistance to cleaners, disinfectants, hand oils, UV rays, and drugs to extend life of device • Reduced abrasion between mating components to ensure proper dosing • Regulatory-approved colorant and additives to provide branding and drug identification Avient Corporation 57 Trends are Shaping Innovation Professional / Clinic Patient / Home Avient Corporation 58 Avient Design D I F F E R E N T I A T E D S E R V I C E • Global product development support from industrial design through engineering and product launch • Extensive material, manufacturing, industry and value chain knowledge • Human-centric design skill, aligning product innovations with ergonomic needs • Product tear-down capabilities to provide customers with product optimization and cost reduction insights • 3D-printed prototypes and samples to accelerate product development Avient Corporation 59 IDEAIDEA PROOF OF CONCEPT PROOF OF CONCEPT DESIGNDESIGN TOOLINGTOOLING EVALUATIONEVALUATION LAUNCH & DELIVERY LAUNCH & DELIVERY Accelerating Speed to Market with Avient design Avient Corporation 60 Avient Design A U T O I N J E C T O R 61Avient Corporation Avient Design 62 A U T O - I N J E C T O R T E A R - D O W N Defined haptics and soft touch Stringent regulatory requirements Drug contact, mechanical sensitivity for dosing accuracy Lasermarking and laserwelding compatible Strict change control Avient Corporation Avient Design 63 A U T O I N J E C T O R I N N O V A T I O N Avient Corporation Avient Design 64 A U T O I N J E C T O R I N N O V A T I O N Easy to use Safe Quality Protect Ingredients Compliant Temperature Management Avient Corporation 65 Medical Grade TPE Healthcare Colorants High-Density Polymer Laser weldable formulation Laser marking additives Lubricated polymers Avient Corporation Easy to use Safe Quality Protect Ingredients Compliant Temperature Management Avient Design A U T O I N J E C T O R I N N O V A T I O N 17,645 29,445 2021E 2025E Source: BCC Research, Nov. 2020 (LBs millions) Healthcare Growth Outlook Avient Corporation 66 8-10% CAGR Future Revenue Growth AssumptionsMarket for Medical Plastics Investor Day 2021 Break Avient Corporation 68 Composites Chris Pederson $74 $84 $216 $212 $260 $5 $10 $32 $41 $50 0 10 20 30 40 50 60 70 2017 2018 2019 2020 2021E • Prior investments in composites platform and outdoor high performance applications continue to pay off driving substantial growth in 2021 ($ in millions) Composites • Composites will also drive our ability to deliver future revenue growth in excess of GDP Avient Corporation 69 Spotlight: Growth in Composites Composite Material Design Avient Corporation 70 Materials Structure Mfg ProcessPart Properties Lower weight Corrosion resistance Fatigue performance Tailor-ability Design flexibility Composite Material Forms Avient Corporation 71 Manufacturing Costs Continuous Fiber Thermosets Continuous Fiber Thermoplastics Design Flexibility Continuous Fiber Thermosets Continuous Fiber Thermoplastics Discontinuous Fiber Thermoplastics Performance Performance Discontinuous Fiber Thermoplastics Composites Portfolio D I V E R S E C A P A B I L I T I E S A N D S O L U T I O N S S E R V I N G M A N U F A C T U R E R S A N D O E M S LFT Tapes Laminates/Panels Shapes Pultrusion Engineered Fibers Avient Corporation 72 Powersports & Outdoor Gear B E N E F I T S O F C O M P O S I T E S STRUCTURAL COMPONENTS Material Replacement • Weight Reduction • Temperature Resistance • Impact Resistance BODY PANELS Paint Replacement • Weight Reduction • Scratch Resistance ADVENTURE GEAR Fatigue Resistance • Lightweight • Temperature Resistance • Impact Resistance Avient Corporation 73 Industrial & Energy B E N E F I T S O F C O M P O S I T E S HIGH PRESSURE PIPE Burst Strength • Corrosion Resistance • Lighter Weight GPS TRACKABLE PALLETS Weight Reduction • Increased Load • Stiffness POWER INFRASTUCTURE Corrosion Resistance • Electrical Insulation • Weight Reduction Avient Corporation 74 $31 $48 $66 $119 2009 2013 2017 2021E ($ millions) Avient Corporation 75 Spotlight: Growth at Fiber-Line Revenue • Fiber-Line business acquired on January 2, 2019 for $120 million • Specialty portfolio of fiber-optic cable applications primarily serving telecommunications end-market • Deep formulation expertise, innovative culture and global commercial presence will accelerate growth related to 5G infrastructure build out Avient Corporation 76 5G Technology Matt Reinhardt Evolution of 5G M E E T I N G S I G N I F I C A N T L Y E X P A N D I N G C O N N E C T I V I T Y N E E D S Avient Corporation 77 How FAST IS 5G?

Der Verkäufer ist berechtigt, ohne Zustimmung des Käufers Rechte abzutreten oder Pflichten zu übertragen und/oder die Erfüllung seiner Verpflichtungen aus diesem Vertrag an Unterauftragnehmer zu vergeben. 19.2 Seller shall have the right to terminate any relevant contract with immediate effect if at any time prior to delivery, a person or group of persons who are unrelated to the persons controlling Buyer as of the date of the order confirmation, acquires control, through ownership of voting securities or otherwise, over Buyer. ZAHLUNG UND KREDIT 7.1 Buyer shall make all payments hereunder in cash or cash equivalent at face value in the funds, within the time, and at the location indicated on Seller’s invoice. 7.1 Der Käufer hat alle Zahlungen im Rahmen dieses Vertrages in bar oder gleichwertigen Zahlungsmitteln zum Nennwert in der auf der Rechnung des Verkäufers angegebenen Währung, innerhalb der dort angegebenen Frist und an dem dort angegebenen Ort zu leisten. 7.2 Late payments will bear interest in accordance with German statutory provisions. 7.2 Auf verspätete Zahlungen werden Verzugszinsen nach den deutschen gesetzlichen Bestimmungen erhoben. 7.3 Buyer is only entitled to set-off insofar as his counterclaims are undisputed or have been legally established. 7.3 Der Käufer ist zur Aufrechnung nur berechtigt, soweit seine Gegenansprüche unbestritten oder rechtskräftig festgestellt sind. 7.4 If Buyer’s business is no longer operated in the ordinary course of business which shall include, without limitation, acts of seizure, late payments, discontinuation of payments or filing for insolvency proceedings under any applicable law, or if Buyer is in payment default towards Seller or in case of any other incidents giving rise to doubts about its creditworthiness, Seller at its discretion may require advance cash payments, COD, shorter terms, and/or the posting of satisfactory security by Buyer, and may withhold shipments. Der Verkäufer ist berechtigt, ohne Zustimmung des Käufers Rechte abzutreten oder Pflichten zu übertragen und/oder die Erfüllung seiner Verpflichtungen aus diesem Vertrag an Unterauftragnehmer zu vergeben. 19.2 Seller shall have the right to terminate any relevant contract with immediate effect if at any time prior to delivery, a person or group of persons who are unrelated to the persons controlling Buyer as of the date of the order confirmation, acquires control, through ownership of voting securities or otherwise, over Buyer.

If Seller determines that Buyer’s financial responsibility has become im- paired or otherwise unsatisfactory to Seller, Seller at its discre- tion may require advance cash payments, COD, shorter terms, and/or the posting of satisfactory security by Buyer, and may withhold shipments. Seller shall have the right to terminate an order confir- mation with immediate effect if at any time prior to delivery, a person or group of persons who are unrelated to the persons controlling Buyer as of the date of the order confirmation, ac- quires control, through ownership of voting securities or other- wise, over Buyer.

If Seller determines that Buyer’s financial responsibility has become impaired or otherwise unsatisfactory to Seller, Seller at its discretion may require advance cash payments, COD, shorter terms, and/or the posting of satisfactory security by Buyer, and may withhold shipments. Seller shall have the right to terminate an order confirmation with immediate effect if at any time prior to delivery, a person or group of persons who are unrelated to the persons controlling Buyer as of the date of the order confirmation, acquires control, through ownership of voting securities or otherwise, over Buyer.

Microsoft PowerPoint - AVNT Seaport Conference Presentation AVIENT CORPORATION S E A P O R T C O N F E R E N C E (NYSE: AVNT) A U G U S T 2 4 , 2 0 2 1 D I S C L A I M E R 2 Forward-Looking Statements In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission.

If Seller determines that Buyer’s financial responsibility has become impaired or otherwise unsatisfactory to Seller, Seller at its discretion may require advance cash payments, COD, shorter terms, and/or the posting of satisfactory security by Buyer, and may withhold shipments. Seller may assign rights or delegate duties and/or subcontract the performance of Seller’s obligations hereunder without the consent of Buyer Seller shall have the right to terminate an order confirmation with immediate effect if at any time prior to delivery, a person or group of persons who are unrelated to the persons controlling Buyer as of the date of the order confirmation, acquires control, through ownership of voting securities or otherwise, over Buyer.

In this press release, statements that are not reported financial results or other historical information are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995.

Avient corporation first quarter 2023 results AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) F E B R U A R Y 2 0 2 4 D I S C L A I M E R Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995.