COLORANT DISPERSIONS RUBBER COLORANT DISPERSIONS Stan-Tone™ MB/MC & EP Stan-Tone™ MB/MC & EP are pigment dispersions for rubber systems, available in customizable binder systems suited for nitrile, EPR, EPDM, SBR, natural rubber, CPE and EVA compounds Applications: industrial goods, auto mats, rubber flooring, sponge rubber, wire and cable URETHANE COLORANT DISPERSIONS Polyester Urethane Paste Colorants: Stan-Tone™ PEP Stan-Tone™ PEP colorants are reactive and compatible with polyester systems, reacting to become part of the final cured product Applications: cast urethane wheels, industrial rollers, rigid foams, adhesives, laminates, pultrusion, glass reinforced composites, coated fabrics Polyether Urethane Paste Colorants: Stan-Tone™ ET Stan-Tone™ ET colorants for urethane are compatible with polyether systems, reacting to become part of the final cured product Applications: flexible foam, cast-able rolls and wheels, adhesives and laminates EPOXY COLORANT DISPERSIONS Stan-Tone™ EPX Stan-Tone™ EPX consists of selected pigments dispersed in a Bisphenol A undiluted epoxy resin with an epoxide equivalent of 185 Applications: protective coatings, adhesives, epoxy flooring, electrical potting and laminates VINYL COLORANT DISPERSIONS Stan-Tone™ VC & VCP Stan-Tone™ VC and VCP are products based on single pigment or multi-pigment blends and are designed for applications in which dispersion, uniformity, compatibility and cleanliness are essential Applications: profile extrusions, decking, outdoor furniture, calendaring applications Plasticizer-Based Colorants for Vinyl Paste: Stan-Tone™ HCC Stan-Tone™ HCC dispersions consist of selected pigments dispersed in diisodecyl phthalate plasticizer (DIDP) and are designed for applications in which dispersion, uniformity, compatibility and cleanliness are essential Applications: coated fabric, vinyl sealants, adhesives, wall coverings, toys and sporting goods SILICONE COLORANT DISPERSIONS Liquid Silicone Colorants: Silcopas™ Stan-Tone™ SP or FSP (FDA-compliant) Silcotec™ SL Stan-Tone™ HC Plus LSR (class VI certified) Silicone paste colorants are single pigment or custom- made dispersions using a silicone carrier specially developed for liquid silicone rubber (LSR) injection molding applications Applications: infant care, toys, seals, gaskets and medical equipment High Consistency Silicone Rubber Colorants: Silcogum™ Silcotec™ S Stan-Tone™ SMB Stan-Tone™ HC Plus HCR (class VI certified) Silicone rubber colorants are made with a silicone elastomer gum binder resulting in cuttable masterbatches or slabs for ease of handling, especially for 2-roll, open-mill mixing Applications: mechanical seals, keypads, gaskets, wire and cable jacketing Room Temperature Vulcanization Colorants: Silcopas™ RTV and Stan-Tone™ SP Silcopas™ RTV and Stan-Tone™ SP colorants offer a standard line of single pigment or custom made dispersions using a low viscosity dimethyl fluid specially developed for room temperature vulcanization (RTV) rubber Applications: caulks, sealants, adhesives WATER-BASED COLORANT DISPERSIONS Water-Based Liquid Colorants: Stan-Tone™ WDN Stan-Tone™ WDN water dispersions are high-solids organic or inorganic pigment dispersions designed to help meet standards for dispersion including pH levels and strength and shade Applications: dipped latex balloons and gloves, coatings and adhesive systems ADDITIVE DISPERSIONS AQUEOUS ADDITIVE DISPERSIONS Aquamix™ Aquamix™ chemical dispersions are a full line of dispersed and emulsified curatives, antioxidants, fillers, vulcanizers, optical brighteners, flame retardants, UV stabilizers and tackifiers Applications: adhesives and latex compounding, curatives SILICONE ADDITIVE DISPERSIONS Electrically Conductive Additives for Silicone: Silcosperse™ EC Silcosperse™ EC electrically conductive additives provide high conductivity and lower filler loadings Applications: resistors, printable electronics, flexible electronics, insulator depolarizers Laser Marking Additives for Silicone: Silcosperse™ LM Silcosperse™ LM laser marking additives are dispersions that contain laser absorbers and color formers that eliminate the need for secondary etching Applications: medical device housings, electronic device housings, wire and cable jacketing Peroxide Additives for Silicone: Silcocat™ Silcocat™ dispersions can improve silicone molding process by stabilizing silicone peroxide compound levels Applications: automotive hoses, seals, gaskets Heat Stabilizer Additives for Silicone: Silcosperse™ The Silcosperse™ family of heat stabilizing additives provide a high quality dispersion into silicone designed to enhance heat resistance of silicone compounds Mold Release Additives for Silicone: Silcosperse™ IMR Silcosperse™ IMR is an internal mold release dispersion designed to be added to the silicone or fluorosilicone compound to facilitate the de-molding of finished parts Acid Acceptor Additives for Silicone: Silcosperse™ 180 Silcosperse™ 180 acid acceptor is a premium dispersion used to neutralize acid by-products generated by certain peroxides Viscosity Modifiers for Silicone: Silcosperse™ 237 Silcosperse™ 237 modifier dispersions are designed to raise or control the viscosity without changing solid content SPECIALTY PRODUCTS DRY POWDER COLORANTS Stan-Tone™ D and Stan-Tone™ DC Stan-Tone™ D and Stan-Tone™ DC are dry powder pigments available in a range of hues and chemical types WET OR DRY BLEND COLORANTS Stan-Tone™ DB Stan-Tone™ DB dry blend colorants provide enhanced performance over dry colors, resulting in uniform critical pigment weight ratios for improved color control SELF-BONDING SILICONE Silcotec™ SCB Silcotec™ SCB self-bonding silicone solutions allow silicone to bond to various substrates without prime coating To learn more about our colorant & additive dispersions, please contact us at +1.844.4AVIENT (1.844.428.4368) or visit www.avient.com.

In 2020, we updated our applications and revenue to better represent how we enable our customers’ sustainability goals, as well reflect the sustainable technologies of recently acquired Clariant Masterbatch business. Avient will use this data to develop new and unique masterbatch formulations with proven science behind how they perform during recycling processes, offering customers a portfolio that’s essentially field-tested for recycling. In 2020, we updated our applications and revenue to better represent how we enable our customers’ sustainability goals, as well reflect the sustainable technologies of recently acquired Clariant Masterbatch business.

Liquid and masterbatch colorants to provide shelf appeal Smartbatch™ formulations blend design and function in one masterbatch solution  Antimicrobial technology, custom colors and performance additives in one masterbatch

Coincident with the acquisition of the Clariant Color business in 2020, we branded the collective enterprise Avient—a new name for a new kind of materials company. HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Per formance | Metrics | IndexHOME | Contents | Message from the CEO | About Us | People | Products | Planet | Per formance | Metrics | Index Sustainability Report | 2023 40Sustainability Report | 2023 40 https://www.avient.com/company/sustainability/sustainable-solutions-portfolio https://www.avient.com/company/sustainability/sustainable-solutions-portfolio https://www.avient.com/company/sustainability/sustainability-report/products/how-our-products-enable-sustainability Service Innovation Enables Quality Recycle Post-Consumer Recycle (PCR) Color Predictive Tool Innovation Award, Winner: Plastics Industr y Association Product Technology Innovation, Winner: Plastics Recycling Awards Europe 2023 Product Innovation Enables PCR Claims + Low CO 2 reSound™ Ultra-Low Carbon Footprint TPE Innovation Award, Finalist: Plastics Industr y Association Rejoin™ 100% PCR Masterbatch Sustainable Packaging Innovation Finalist: U.S. SUPPLIERS AVIENT CUSTOMERS Strategy Avient is actively involved in various associations including the ACC, European MasterBatchers and Compounders (EuMBC), European Plastics Converters (EuPC) and Titanium Dioxide Manufacturers Association (TDMA).

Coincident with the acquisition of the Clariant Color business in 2020, we branded the collective enterprise Avient—a new name for a new kind of materials company. HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Per formance | Metrics | IndexHOME | Contents | Message from the CEO | About Us | People | Products | Planet | Per formance | Metrics | Index Sustainability Report | 2023 40Sustainability Report | 2023 40 https://www.avient.com/company/sustainability/sustainable-solutions-portfolio https://www.avient.com/company/sustainability/sustainable-solutions-portfolio https://www.avient.com/company/sustainability/sustainability-report/products/how-our-products-enable-sustainability Service Innovation Enables Quality Recycle Post-Consumer Recycle (PCR) Color Predictive Tool Innovation Award, Winner: Plastics Industr y Association Product Technology Innovation, Winner: Plastics Recycling Awards Europe 2023 Product Innovation Enables PCR Claims + Low CO 2 reSound™ Ultra-Low Carbon Footprint TPE Innovation Award, Finalist: Plastics Industr y Association Rejoin™ 100% PCR Masterbatch Sustainable Packaging Innovation Finalist: U.S. SUPPLIERS AVIENT CUSTOMERS Strategy Avient is actively involved in various associations including the ACC, European MasterBatchers and Compounders (EuMBC), European Plastics Converters (EuPC) and Titanium Dioxide Manufacturers Association (TDMA).

GUIDANCE $800 $754 Guidance Actual $128 $123 Guidance Actual Sales Adjusted EBITDA (in millions) $0.56 $0.57 Guidance Actual Adjusted EPS (in millions) 13 • Demand impacted by destocking and cautious customer sentiment • Positive net price benefit: o CAI - Pricing flat and raw material deflation o SEM - Pricing flat with unfavorable mix related to healthcare, more than offset with raw material deflation • Cost reductions driven by Clariant synergies and reduced administrative costs Q3 EBITDA BRIDGE ($ millions) CAI: Price / Mix -) Deflation 22) SEM: Price / Mix (6) Deflation 13) Net Price Benefit 29) Cost Reductions 13) Wage Inflation (8) FX 1) Q3 2023 Actual $ 123) Adjusted EBITDA Q3 2022 Pro Forma $ 137) Demand (49) 14 2 0 2 3 G U I D A N C E Q4 2023 GUIDANCE VS.

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 19 $130 $530 Q2 FY $0.60 $2.40 Q2 FY 2023 GUIDANCE 20 Sales Adjusted EBITDA $845 $3,400 Q2 FY Adjusted EPS (in millions) (in millions) CA SH FLOW / LEV ER AGE 21 • Maintaining free cash flow and leverage guidance from February earnings call • IT investment to further integrate acquired businesses and capture operational efficiencies • Restructuring actions to streamline operations and improve profitability, primarily in Europe ($ 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 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% 22 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 23 SUSTAINABILITY INVESTOR DAY 23 $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% 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 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 25 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 26 A P P E N D I X 29 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% 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 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 32 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 33 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% 34 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 May 31, 2023 Note: Avient reflects 2023 estimated revenue of $3,400 and estimated run-rate CAPEX of $110M. 36 3 2 3 3 4 4 3 3 4 5 5 6 8 9 A vi e n t K W R P P G F U L A V Y R P M F M C H U N C E H X L 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 May 31, 2023 Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA.

Rejoin PCR Masterbatch for Polyolefins (Chinese) Masterbatch Solutions for Mosquito Nets Functional masterbatch for protective face masks (English version)

In July 2020, following our transformational acquisition of Clariant Color, we branded the collective enterprise as Avient —a new name, for a new kind of materials company. Director since: 2018 Age: 69 Current Public Company Directorships: • Haemonetics Corporation Former Directorships: • Halyard Health, Inc. • RadioShack Corp. • Lubrizol Corp. • Kimberly-Clark de Mexico Richard H. Hennessy Capital Investment Corp.

By offering both liquid and solid masterbatch solutions, we better ensure that the chosen technology is the best one for each customer's specific needs," explained