All Rights Reserved 2024 Amplify innovation across portfolios 1 Hybridize technologies 2 create capacity and capability in R&D 3 18Copyright © . Catalyze the core” – leverage broad technology portfolio, applications expertise, and global footprint and capabilities 2. Focusing on driving growth in composites – building new platforms with scale and differentiated technology 3.

LIQUID FIBER PRODUCT FEATURES Fiber Solution Services LABORATORY PERFORMANCE BASED ON STATE-OF-THE-ART TECHNOLOGY To ensure the highest quality products, our customers rely on high-performance raw materials which guarantee that the final products meet the required specifications for heat resistance, household washing, weathering and lightfastness. Our technical laboratories and production processes are completely integrated and equipped with state-of-the-art technology focused on minimizing waste products. COLORMATRIX™ FLEXCART™ AND FLEXONE™ LIQUID METERING EQUIPMENT Designed to optimize the benefits of liquid colorant and additive technologies, ColorMatrix FlexCart and FlexOne systems are highly flexible, and offer high-level metering accuracy and controllability for all injection molding and extrusion applications.

HELPING YOU WITH LIQUID COLOR There are many important technical factors to consider when implementing new technologies into new or existing injection molding and extrusion processes. Dosing systems Proprietary dosing systems designed specifically for optimized metering of Avient advanced ColorMatrix liquid technologies. Process reporting Advice and direction on where production efficiencies can be achieved through applying Avient technologies.

HELPING YOU WITH LIQUID COLOR There are many important technical factors to consider when implementing new technologies into new or existing injection molding and extrusion processes. Dosing systems Proprietary dosing systems designed specifically for optimized metering of Avient advanced ColorMatrix liquid technologies. Process reporting Advice and direction on where production efficiencies can be achieved through applying Avient technologies.

SERVICES OVERVIEW COLORANTS & ADDITIVES VALUE-ADDED SERVICES At Avient, our goal is to provide premier colorant and additive technologies paired with world-class services that support our specialized and sustainable solutions. A RANGE OF WORLD-CLASS SERVICES COLOR TECHNOLOGY Custom matching, saturated colors, and special effects to fill market niches, eliminate secondary operations, and strengthen your brand PCR COLOR PREDICTION SERVICE Digital prediction tool illustrating color possibilities and limitations of post-consumer recycled (PCR) content to simplify decision making and shorten time to launch PRODUCT CARBON FOOTPRINT (PCF) CALCULATOR Methodology that evaluates the carbon footprint of Avient solutions, contributing a data point to your overall carbon footprint and supporting credible reporting AVIENT DESIGN A highly specialized group of industrial designers and project engineers that provides advanced design and detailed analysis to foster higher levels of innovation TESTING AND VALIDATION Fully accredited and in-house testing capabilities to generate data for insight into material behavior, environmental effects, and more REGULATORY SUPPORT Dedicated product stewardship team assisting with new product approvals to reduce regulatory overhead and minimize risk COLOR AND ADDITIVE DESIGN SERVICES Trend and color insights along with product development assistance from concept through commercialization to optimize design and gain speed to market RESEARCH AND DEVELOPMENT Long-term strategic solution development that addresses complex and unmet product innovation needs APPLICATION DEVELOPMENT TECHNICAL SUPPORT Technical experts specifically trained to work directly with your team to solve definitive application challenges with new or existing approaches FIELD TECHNICAL SERVICE Onsite support for tool design, startup, and production optimization to gain manufacturing efficiencies and help resolve technical issues Common compliance categories where we can assist: • UL • USP Class VI • ISO 10993 • ISO 1345 • REACH • RoHS • FDA • EU 10/2011 • China GB • MERCOSUR • USP • ISP • CPSIA • Prop 65 ColorWorks™ Design & Technology Centers Our global ColorWorks centers are focused on design, technology, and innovation for plastics.

Purchase price multiple rapidly declining on strength of business and synergy capture 10 $133 $205 2019PF 2021 10 Clariant Color EBITDA Growth Purchase Price Multiple 10.8x 7.0x 6.1x 2019PF 2021 2021 w/ Full Synergies (1) (1) 11.9% 16.2% 2019PF 2021 EBITDA Margins (1) CLARIANT COLOR: TRANSFORMATIONAL ACQUISITION ($ in millions) (1) Financial information is pro forma to include a full year of Clariant Color business ($ millions) Initial Synergy Estimate 2021 Synergy Realization Total Synergies Expected Administrative $ 18 $ 29 $ 40 Sourcing 24 20 24 Operational 18 5 21 Total Synergies $ 60 $ 54 $ 85 C L A R I A N T C O LO R I N T E G R AT I O N & C O S T S Y N ERG I E S U PDATE 11 • Integration going extremely well: synergy target increased to $85 million at December 9th Investor Day • Relentless focus on guiding principles of safety first, employee collaboration and exceeding customer expectations • Future revenue synergies are not part of these estimates and represent additional growth over the long term S U S TA I NA B I L I T Y F O R A B ET T E R TO M O R ROW 12 • Revenue from sustainable solutions grew 16% in 2021 and expected to grow 8-12% in 2022 as our innovation efforts and collaboration with customers accelerates • Investments centered around innovation and global sustainability megatrends o Enabling a circular economy – Technologies that allow for increased use of post-consumer recycled (PCR) material and improve recyclability of plastics o Light-weighting – Composites and CAI applications to reduce weight and material requirements, which minimize energy and carbon emissions o Eco-Conscious – Health and human safety applications as well as Avient’s alternative materials to replace lead, PVC, halogens, BPA and other less eco-friendly options 12 *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 12 2016 2017 2018 2019 2020PF** 2021 $405M $455M $550M $790M Revenue From Sustainable Solutions* 2016-2021 $915M $340M PEOPL E C U L T U R E I S E V E R Y T H I N G Community Service 7x Safer than Industry Average World-Class Safety Leadership Development Over $16 million raised since 2010 Diversity & Inclusion 13 Q4 2020 $997 $80 Sustainable Solutions 23 12% 8 Healthcare 53 43% 9 Composites 7 22% 2 Growth in Asia / LATAM 14 10% 3 Other 118 23% 2 Sub-total $1,212 22% $104 Wage Inflation and Overtime (11) Other Supply Chain Costs (4) Synergies 9 Incentives, FX, Other Employee Costs (10) (13) Q4 2021 $1,202 21% $85 Q4 2021 SALES AND OPERATING INCOME ( T O TA L C O M PA N Y ) 14 Sales Growth Rate Adjusted Operating Income$ millions Adjusted EBITDA Q4 EBITDA BRIDGE 15 Price increases more than offsets raw material and supply chain impacts Q4 2020 $ 118 Demand - $ millions CAI: Price / Mix 62 Inflation (45) SEM: Price / Mix 25 Inflation (20) Distribution: Price / Mix 114 Inflation (109) Net Price Benefit 27 Wage Inflation and Overtime (11) Other Supply Chain Costs (4) Synergies 9 Incentives, FX, Other Employee Costs (13) Q4 2021 $ 126    Transportation (5)$ Outdoor High Performance (3) Other 8 Total Demand - Q4 2021 SEGMENT PERFORMANCE 16 CAI $526 $581 Sales ($ in millions) SEM Distribution $58 $61 Operating Income + 11% + 6% $305 $425 Sales $18 $22 Operating Income + 39% + 22% (1) $191 $228 Sales $30 $29 Operating Income + 19% - 3% 2 0 2 2 O U T L O O K REVENUE GROWTH DRIVERS Growth Drivers Long-Term Growth Rate 2022E Growth Rate Sustainable Solutions 8–12% 12% Healthcare 8–10% 10% Composites 10% 3% Asia / LATAM 5% 6% Other (GDP growth) 2–3% 2–3% Avient 6.5% 6% 18 Excluding Outdoor High Performance 13% (7.5% excl. FX) 2022 GROWTH PROJECTIONS ( T O TA L C O M PA N Y ) 19 $3.05 $3.50 2021 2022E Full Year – Adjusted EPS + 15% (+ 17% excluding FX) $0.89 $0.95 2021 2022E Q1 – Adjusted EPS + 7% (+ 10% excluding FX) ($ millions) Q1 Full Year Q1 Full Year 2021 - Actual 1,162$ 4,819$ 123$ 429$ Sustainable Solutions 27 110 12 44 Healthcare 15 66 4 13 Composites (excl.Outdoor High Performance) 11 29 5 13 Outdoor High Performance Applications (7) (20) (4) (10) Growth in Asia / LATAM 10 51 3 11 Other 57 115 9 12 Sub-total 1,275$ 5,170$ 152$ 512$ Wage Inflation and Overtime (12) (18) Other Supply Chain Costs (4) (7) FX Impact (25) (70) (4) (8) Synergies 4 15 Travel, Other Employee Costs (1) (4) 2022 - Estimated 1,250$ 5,100$ 135$ 490$ Sales Adjusted Operating Income 2022 SALES AND OI – Q1 AND FULL YEAR ( T O TA L C O M PA N Y ) 20 ($ millions) 2021 2022E Cash Flow from Operating Activities 234$ 385$ Less: Run-Rate CapEx (86) (90) CapEx for Clariant Integration (15) (20) CapEx for IT System Upgrade - (25) Total CapEx (101) (135) Free Cash Flow 133$ 250$ Adjusted EBITDA 581$ 635$ Net Debt / Adjusted EBITDA 2.2x 1.8x 21 C A SH F LOW / L E VE R AGE 22 • Record results – highest level of sales ($4.8B) and earnings ($3.05 adjusted EPS) in company history • Successful Clariant Color integration – net debt to adjusted EBITDA reduced to 2.2x, one-year ahead of schedule • Recognized as one of America’s Most Responsible Companies by Newsweek • Earned 3rd consecutive Great Place to Work certification 2021 HIGHLIGHTS 23 • 15% adjusted EPS growth to $3.50, led by growth in sustainable solutions and increased synergy realization • Continued strong synergy capture from the Clariant Color integration: $75M anticipated run-rate synergies by the end of 2022 • Adjusted EBITDA of $635M represents 9% growth above 2021 – 11% excluding the impact of foreign currencies • Deleveraged to 1.8x net debt to adjusted EBITDA by the end of 2022 2022 SUMMARY PEER COMPARISONS 25 As a specialty formulator, we don’t require significant capital investment, as compared to the base resin raw material suppliers we purchase from.

OFC TECHNOLOGY LEADER M I C R O B U N D L E S I N B L O W I N G A P P L I C A T I O N F O R R A I L W A Y S • Strippable with fingers for easy installation/access to fibers • High speed processing at a low wall thickness • Low shrinkage • Resistance to chemicals and filling compounds • Meet XP C93-850-1-1 standard • Re-designed cable to provide advantageous functional and economical value • Improved flexibility compared to PBT and PP tubes, allowing longer blowing distances on paths with angles of 90° • Increased processing speed and improved ease of installation • Provided better cable lifetime value compared to alternative solutions ECCOH™ 6151 UV SEPAP Formulation KEY REQUIREMENTS WHY AVIENT? https://www.polyone.com/products/engineered-polymer-formulations/eco-conscious-formulations/eccoh-low-smoke-and-fume-non-halogen-formulations OFC Technology Leader

https://www.avient.com/products/long-fiber-technology/long-fiber-technologies/onforce-long-glass-fiber-reinforced-polypropylene-composites Default Section Slide 1: Automotive Molder tier 1

POWER CABLE PRODUCER C A B L E I N S U L A T I O N • Easy to process • To pass CPR fire test • Low smoke and toxicity values on smoke test • Possibilities for low-voltage cables • Cable insulation that passed G18 of the CEI EN 50363-0: 2015 standard • Offered Sioplas technology for cross-linking providing ambient curing • Delivered new cable design possibilities for low- voltage cables while offering easy processing • Processed more efficiently than market- established elastomeric technology which is processed using a CV line • Provided cable insulation that passes the hot set test at 250°C ECCOH XL Cross-Linkable Solutions 8054 KEY REQUIREMENTS WHY AVIENT?

https://www.avient.com/products/long-fiber-technology/long-fiber-technologies/compl-t-long-fiber-reinforced-structural-thermoplastics Slide 1: Tier 1 Supplier