PROFILE/SHEET EXTRUDER R A I L S A N D K I C K P L A T E S • Convert existing PVC profile and sheet rails and kick plates to polyolefin resin to meet Class A fire safety (ASTM E84) • Provide a system that meets healthy building certifications and approvals • Utilize a more sustainable flame retardant technology, removing brominated or halogenated flame retardants from the environment • Achieve non-compromising performance in aesthetics, impact, dimensional stability, CLTE, and E84 testing • Provided broad flame retardant platform, backed by extensive application and industry expertise, to meet global flammability standards • Has largest UL94 recognized Prospector membership with HB, V-0, V-1, V-2 and 5VA/5VB ratings, and broad glow wire performance products • Included in-house UL certified labs and manufacturing locations to perform UL94 material sampling and testing • Supported application development to meet fire safety standards, address current or emerging healthy building codes, smart home requirements, and LEED credits • Offered custom formulations in small lot quantities Cesa™ Flam Non-Halogen Flame Retardants KEY REQUIREMENTS WHY AVIENT? All Rights Reserved. https://www.avient.com/products/polymer-additives/performance-enhancement-additives/cesa-flame-retardant-additives

UV protection Technical Literature Marketing + Technical Info

Marketing + Technical Info Overview of how Avient serves wire & cable customers, highlighting both power and data cables technologies Cesa™ Clean Additives

Solutions include single pigment dispersions, custom color concentrates, and functional additive concentrates to enhance properties such as flame retardancy, UV stabilization, antimicrobial effect, or to improve fiber production processes. Cesa™ Raise Heat Stability Modifier for APET Packaging UV and Light Blocking Additives

Homepage // News Center // Avient Announces Asia Manufacturing and Availability of Cesa™ Non-PFAS Process Aid Avient expands the launch of its new Cesa™ Non-PFAS Process Aid for polyolefin extrusion and film formulations to Asia, enabling processability, productivity, and stability comparable to traditional fluoropolymer-based processing aids. Avient’s Cesa Non-PFAS Process Aid for Extrusion is currently manufactured in Greater China, Thailand and the United States.

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

CESA™ Nox Additives Stabilization PRODUCT SELECTION GUIDE Exposure to heat, shear and oxygen during processing causes the creation of free radicals from the polymer. CESA NOX – STANDARD OFFERINGS CESA Nox additives can be used in combination with other CESA masterbatches, and formulations can be customized for most applications. POLYMER FAMILY MATERIAL PRODUCT NAME DOSAGE Polyolefin PEA0820031 CESA Nox PEA0820031 0.5–1% Polypropylene PPA0820055 CESA Nox PPA0820055 0.5–1% Polyamide ABA0820029 CESA Nox ABA0820029 0.5–1% Polyester NBA0820022 CESA Nox NBA0820022 0.5–1% Polycarbonate NCA0820015 CESA Nox NCA0820015 0.5–2.5% Styrenic SLA0820009 CESA Nox SLA0820009 0.5–2.5% TPU RUA0820029 CESA Nox RUA0820029 0.3–1.5%

DISCLAIMER Avient Corporation 3 Avient Corporation 4 Welcome Bob Patterson Chairman, President, and Chief Executive Officer INTRODUCTION Sustainability for a Better Tomorrow Jamie Beggs 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 35 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 78% 78% 80% 80% 81% 78% 84% 83% 80% 79% 50% 55% 60% 65% 70% 75% 80% 85% 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023E 0 50 100 150 200 250 300 350 400 Fr ee C as h Fl ow C on ve rs io n 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 7% 46% 66% 87% 100% 0% 20% 40% 60% 80% 100% 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 Packaging Consumer Healthcare Defense Avient Corporation 12 10% 19% 8% 23% 4% 7% 7% 2006 2023E Other Industri es 78% Healthcare Consumer Packaging 22% 56% 14% 10% 43% 9% 2006 2023E Reduced Exposure to Cyclical End Markets End Market Diversification Transportation Building & Construction 57% 19% Defense IMPROVING PROFITABILITY AND EXPANDING MARGINS Avient Corporation 13 Adj. Packaging and Packaging Waste Directive) RECYCLE SOLUTIONS Sources: UN Environment Programme; Deloitte; McKinsey & Company; European Commission: Environment SOLVING CHALLENGES IN KEY END MARKETS Avient Corporation 33 Transportation Lightweighting Recycle solutions VOC reduction Consumer Recycle solutions Lightweighting Carbon footprint Healthcare Carbon footprint Bio-based content Eco-conscious Packaging Recycle solutions Lightweighting Food waste reduction Sustainable Infrastructure Eco-conscious Carbon footprint 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 KEY CUSTOMER CHALLENGES: • 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% 25% 11% 11% 6% 19% 7% 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 75% 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 85% 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 100% 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 • Easily colorable 40% BIO-BASED CONTENT Avient Corporation 44 High PCR Content Razor reSound™ Recycled Thermoplastic Elastomers • Excellent processability • Easily colorable 62% RECYCLE CONTENT Consumer 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 Consumer 2022 Revenue: $1M Portable Power Station Nymax™ Recycled Nylon • Recycle content up to 60% • Excellent weathering performance • Reduces weight 60% RECYCLE CONTENT Swim Goggles reSound™ BIO Thermoplastic Elastomers • Easily colorable • Performs like traditional TPE 35 - 70% BIO-RENEWABLE CONTENT Avient Corporation 46 Consumer 2022 Revenue: $3M Off Road Vehicle Structural Components Nymax™ REC Reinforced Nylon • Replaces steel/aluminum • Excellent fatigue resistance INCORPORATES RECYCLE CONTENT CUSTOMER TESTIMONIALS 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 CUSTOMER TESTIMONIALS Avient Corporation 71 50 90 0 20 40 60 80 100 2022 2030 Medical Plastics Market Size PRESERVE – TAKEAWAY Protecting Human Life and Enabling Connectivity Drives Growth Projections Examples Covered Today 56% Other Applications 44% 2022 $525M (in $ Bi lli on s) 8% CAGR 34% CAGR 5G Infrastructure Market Size 12 92 0 10 20 30 40 50 60 70 80 90 100 2023 2024 2025 2026 2027 2028 2029 2030 (in $ Bi lli on s) Source: Grand View Research Source: Global Data Summary Jamie Beggs 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: Plastics Industry Association PCR Colorants + Additives Sustainable Packaging Innovation, Finalist: U.S.

LAN/coaxial sheathing1 5865/1 4.0 12.0 180 42 Cca Very good flame retardancy and easy processing. Optical fiber sheathing1 5501 UV 11.0 11.5 170 35 Dca Easy processing and enhanced UV resistance. Data Insulation 6200 D 11.0 14 350 30 Low thickness and high speed processing.

LAN/coaxial sheathing1 5865/1 4.0 12.0 180 42 Cca Very good flame retardancy and easy processing. Optical fiber sheathing1 5501 UV 11.0 11.5 170 35 Dca Easy processing and enhanced UV resistance. Data Insulation 6200 D 11.0 14 350 30 Low thickness and high speed processing.