LAN/coaxial sheathing1 5865/1 4.0 12.0 180 42 Cca Very good flame retardancy and easy processing. Optical fiber sheathing1 5924 UV 3.9 11.5 170 39 Dca Medium char formation, high flame retardancy, UV resistance and good Optical fiber sheathing1 5501 UV 11.0 11.5 170 35 Dca Easy processing and enhanced UV resistance. Optical Fiber Loose Tube PF 4142 3.0 34 35 42 High stiffness and high flame retardancy material for dry loose tubes.

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Product information and technical data sheet for ColorMatrix™ TripleA™ additive technology, which reduces Acetaldehyde levels in PET packaging Cesa™ Raise Heat Stability Modifier for APET Packaging UV and Light Blocking Additives

DISCLAIMER Avient Corporation 3 Avient Corporation 4 Welcome Chairman, President, and Chief Executive Officer INTRODUCTION Sustainability for a Better Tomorrow Senior Vice President and Chief Financial Officer Avient Corporation 5 WE ARE A FORMULATOR CUSTOM FORMULATION Avient Corporation 6 Avient Corporation 7 WE ARE INNOVATORS 2,500+ ACTIVE PATENT FILINGS WORLDWIDE 1,100+ RESEARCH AND DEVELOPMENT ASSOCIATES >85% Stage-gate technology projects enable sustainable solutions INDIA INNOVATION CENTER 33% 2022 VITALITY INDEX 140+ MATERIAL SCIENCE PhD ASSOCIATES Avient Corporation 8 3% 3% 5% Avient Specialty Formulators Other Specialty / Chemical Companies CAPEX / Revenue 2023E Global footprint enables greater flexibility to exceed needs of customers and deliver localized technical and formulation expertise 9 36 24 Manufacturing Locations by Region WE ARE ASSET LIGHT Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA Avient Corporation 9 Asset-light flexibility enables more nimble manufacturing capabilities and lower overhead Periods of economic weakness have driven higher levels of cash generation due to working capital improvement PROVEN TRACK RECORD OF HIGH FREE CASH FLOW CONVERSION 80% 80% 81% 84% 83% 79% 50% 70% 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023E 150 200 250 300 350 400 Fr ee C as h Fl ow C ve rs io Fr ee C as h Fl ow FCF $ AVNT FCF Conversion % S&P FCF Conversion % 2 Recent Divestitures - Combined $1.7B in Proceeds PORTFOLIO EVOLUTION Avient Corporation 10 Combined $3.6B Investment in Acquisitions Since 2016 Color Business Distribution 2016 2022 PORTFOLIO TRANSFORMATION 46% 87% 0% 20% 2005 2010 2015 2020 2023 % o f A dj us te d EB IT DA Commodity JVs Distribution Performance Products & Solutions Specialty Businesses Adjusted EBITDA from Specialty Applications Avient Corporation 11 END MARKET TRANSFORMATION Defense Avient Corporation 12 8% 23% 4% 2006 2023E Other Industri es 22% 56% 14% 43% 9% 2006 2023E Reduced Exposure to Cyclical End Markets End Market Diversification Transportation Building & Construction 57% Defense IMPROVING PROFITABILITY AND EXPANDING MARGINS Avient Corporation 13 Adj. Packaging and Packaging Waste Directive) Sources: UN Environment Programme; Deloitte; McKinsey & Company; European Commission: Environment SOLVING CHALLENGES IN KEY END MARKETS Avient Corporation 33 Transportation VOC reduction Bio-based content Eco-conscious Food waste reduction Sustainable Infrastructure Eco-conscious Resource conservation HOW AVIENT INNOVATION ENABLES SUSTAINABLITY Avient Corporation 34 Solutions to increase recycled content and minimize plastic waste Solutions to reduce weight and energy consumption Solutions to preserve and protect natural resources & human life HOW WE ENABLE SUSTAINABILITY Renew Michael Garratt Senior Vice President, President of Color, Additives and Inks – EMEA Avient Corporation 35 RENEW Avient Corporation 36 • Meet Aggressive Sustainability Goals - While brand owners have made strong, public sustainability commitments – many are currently trailing far behind goals • Develop Strategies to Minimize Plastic Waste - Plastic waste remains a global priority with consumers and legislatures – forcing brand owners to implement tangible mitigation strategies • Increase Post Consumer Recycle (PCR) Utilization & Post Consumer Recycle Availability - Increasing the use of PCR is far more challenging than many companies had anticipated • Meet Legislation Requirements - Legislatures are drafting financial penalties for companies unable or unwilling to meet post-consumer recycled content targets Solutions to increase recycled content and minimize plastic waste PLASTICS ARE PART OF THE SOLUTION Avient Corporation 37 Source: Franklin Associates / American Chemistry Council PLASTIC ALTERNATIVE PACKAGING (GLASS + ALUMINUM + PAPER) 2x More energy 3x More greenhouse gas emissions 5x More waste 6x More waterWater Waste Emissions Energy BRAND OWNER PROGRESS AGAINST COMMITMENTS 39% 29% 37% 16% 6% 0.0% 5.0% 10.0% 15.0% 20.0% 25.0% 30.0% 35.0% 40.0% 45.0% 50.0% Brand Owner 1 Brand Owner 2 Brand Owner 3 Brand Owner 4 Brand Owner 5 Brand Owner 6 Brand Owner 7 Brand Owner 8 Brand Owner 9 Brand Owner 10 Percent Recycled Plastic Used Progress through 2022 Gap to reach 2025 targets Source: Ellen MacArthur Foundation 2022 Avient Corporation 38 Color Management Maintaining Mechanical Properties Decontamination Mono-Material Construction Consistent Quality TOP 5 GAPS TO RECYCLE CONTENT UTILIZATION Avient Corporation 39 Avient Corporation 40 Food & Beverage Packaging 2022 Revenue: $43M Taste and Odor Management ColorMatrix™ AAnchor Scavenger • Improves recyclability • Reduces regulatory risk from migration issues ACETALDEHYDE REDUCTION Recyclable Oxygen Barrier ColorMatrix™ Capture ™ Oxygen Scavenger • Protects recyclate - maintains clarity with no discoloration • Enables higher rPET content utilization rPET UTILIZATION Food & Beverage Packaging 2022 Revenue: $88M PCR Performance Additives ColorMatrix™ SmartHeat™ • Lowers energy use - CO2 Emissions • Reduces yellowing and thermal instability • Enables increased use of rPET • Minimal impact on part color 35% LOWER CARBON EMISSIONS THINNER WALLS Reduced Wall Thickness Packaging ColorMatrix™ Ultimate™UV Light Barrier Stabilizer Cesa™ Light Additives • Protects ingredients from UV degradation • Enables reduced wall thicknesses • No negative effect on recycling Increased Recycle Content ColorMatrix™ Process Aid and Toner for Recycled PET (rPET) • Improves ability to recycle PET • Enables higher percentages of recycled content • Provides superior aesthetics • Prevents degradation of physical properties ENHANCES RECYCLING Avient Corporation 41 Avient Corporation 42 Design for Recycling CycleWorks™ Center for Mechanical Recycling • Recycling trials and field testing • Solutions evaluation and screening • Customer collaboration EXPANDS PCR USAGE PCR Color Prediction Service • Enables use of lower-quality PCR • Predicts achievable colors • Increases PCR utilization rates • Helps brands to achieve PCR usage goals CONSUMERS: CHOOSE BASED ON COLOR CycleWorks™ Center Milan, Italy Additives for Recycling 2022 Revenue: $50M Stabilization During Recycling Cesa™ A4R Additives for Recycling • Enables multi-loop recycling • Stabilizes recyclate during processing • Reduces discoloration, gels, and black spots PCR UTILIZATION ENABLES Personal Care Packaging New Product Avient Corporation 43 Bio-Based Phone Case reSound™ OM BIO-based Thermoplastic Elastomers • Derived from non-fossil-based raw materials • Good property retention and UV resistance BIO-BASED CONTENT Avient Corporation 44 High PCR Content Razor reSound™ Recycled Thermoplastic Elastomers • Excellent processability 62% 2022 Revenue: $1M Carbon Footprint Analysis Carbon Footprint Mapping Service • Provides input metrics for independent brand carbon footprint calculations • Aligns with a defined ISO standard, certified by TUV Rhineland ENABLES CARBON AWARENESS Avient Corporation 45 2022 Revenue: $1M Portable Power Station Nymax™ Recycled Nylon • Recycle content up to 60% • Excellent weathering performance • Reduces weight Swim Goggles reSound™ BIO Thermoplastic Elastomers • Performs like traditional TPE 35 - 70% BIO-RENEWABLE CONTENT Avient Corporation 46 2022 Revenue: $3M Off Road Vehicle Structural Components Nymax™ REC Reinforced Nylon • Replaces steel/aluminum • Excellent fatigue resistance INCORPORATES Avient Corporation 47 “Avient’s bio-circular materials for our Biofuse 2.0 goggles are a real game changer that will set Speedo apart from the competition - and will support our aim of reducing environmental impact.” Per Carlsson, Manufacturing and Operations Avient Corporation 71 80 2022 2030 Medical Plastics Market Size PRESERVE – TAKEAWAY Protecting Human Life and Enabling Connectivity Drives Growth Projections Examples Covered 56% Other Applications 44% 2022 $525M (in $ Bi lli s) 8% CAGR 34% CAGR 5G Infrastructure Market Size 12 92 10 70 80 2023 2024 2025 2026 2027 2028 2029 2030 (in $ Bi lli s) Source: Grand View Research Source: Global Data Summary Senior Vice President and Chief Financial Officer Avient Corporation 72 OUR SUSTAINABILITY REPORT Avient Corporation 73 Avient Corporation 74 2030 SUSTAINABILITY GOALS Avient Corporation 75 PERFORMANCE AND RECOGNITION 1 2 5 ESG Ratings Performance ESG Awards and Certifications top 13% 94th percentile Avient Corporation 76 SUSTAINABILITY INNOVATION AWARDS Ultra-Low Carbon Footprint TPE Innovation Award, Finalist: PCR Colorants + Additives Sustainable Packaging Innovation, Finalist: U.S.

Broadly recognized for their chemical inertness, thermal stability, hydrophobicity, low surface energy, and low coefficient of friction (CoF), making them useful in many applications. Learn more about our solid solution, Cesa™ Non-PFAS Process Aid for Extrusion, and our Colorant Chromatics™ Evoluscend™ Non-PFAS High-Temperature Mold Release Additive.

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Technical Bulletins Home // Technical Bulletins They normally do not require drying, have broad processing latitudes, and have good-to-excellent thermal stability.

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Colorant Chromatics™ UV Laser Marking Technology Cesa™ Raise Heat Stability Modifier for APET Packaging UV and Light Blocking Additives

Colorant Chromatics™ UV Laser Marking Technology Cesa™ Raise Heat Stability Modifier for APET Packaging UV and Light Blocking Additives