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. Clariant MB acquired July 1, 2020 COLORWORKS I N S P I R AT I O N . With the Clariant Masterbatch acquisition and divestment of the PP&S business, our exposure is now concentrated in less-cyclical and high-growth markets, with increased geographic diversification and a more specialized portfolio that can significantly expand EBITDA margins. 31 Avient reflects 2021 estimated EBITDA of $580M O U R VA LUATI O N V E R S U S P E E R S Avient Specialty Formulators Other Chemical/Specialty Companies 9.5 18.5 15.1 15.1 14.0 11.0 10.4 29.5 28.2 23.9 18.7 12.4 12.2 11.1 9.3 9.2 9.2 7.6 7.6 6.0 A vi e n t K W R P P G A V Y R P M F U L G C P A L B H X L E C L IF F F M C B N R A S H S C L E M N U N V R K R A C E H U N Median: 11.1xMedian: 14.6x S U M M A RY: W H Y I N V E S T I N AV I E N T ?

Forme juridique Société à responsabilité limitée Siège social Numéro 19 Rue Route de Bastogne Code postal 9638 Localité Pommerloch Pays Luxembourg Parts détenues Nombre 131 000 Administrateur(s) / Gérant(s) Régime de signature statutaire Sous réserve de la Loi Luxembourgeoise et des présents Statuts, la Société est valablement engagée ou représentée à l'égard des tiers par : 10.1 si la Société a un Gérant Unique, la seule signature du Gérant Unique; 10.2 si la Société a plus d'un (1) Gérant, la signature unique de tout Gérant, à condition cependant que si des catégories différentes de Gérants (à savoir Gérant de catégorie A et Gérant de catégorie B) sont nommés, également la signature unique de tout Gérant (y compris par le biais de la représentation); 10.3 la signature unique de toute personne à qui un tel pouvoir aura été délégué conformément à l'Article 11. Kronimus Holger Hans Kronimus Holger Hans Nom Kronimus Prénom(s) Holger Hans Adresse privée ou professionnelle Numéro 2 Rue Adolf Dambach-Strasse Code postal 76571 Localité Gaggenau Pays Allemagne Type de mandat Organe conseil de gérance Fonction gérant Durée du mandat Date de nomination 04/07/2018 Durée du mandat Indéterminée Merklein Norbert Merklein Norbert Nom Merklein Prénom(s) Norbert Page 3 / 5 B226205 Adresse privée ou professionnelle Numéro 61 Rue Rothausstrasse Code postal 4132 Localité Muttenz Pays Suisse Type de mandat Organe conseil de gérance Fonction gérant Durée du mandat Date de nomination 18/01/2021 Durée du mandat Indéterminée Palm Christoph Palm Christoph Nom Palm Prénom(s) Christoph Adresse privée ou professionnelle Numéro 19 Rue route de Bastogne Code postal 9638 Localité Pommerloch Pays Luxembourg Type de mandat Organe conseil de gérance Fonction gérant Durée du mandat Date de nomination 04/07/2018 Durée du mandat Indéterminée Potoczny Zaneta Gabriela Potoczny Zaneta Gabriela Nom Potoczny Prénom(s) Zaneta Gabriela Adresse privée ou professionnelle Numéro 19 Rue route de Bastogne Code postal 9638 Localité Pommerloch Pays Luxembourg Type de mandat Organe conseil de gérance Fonction gérant Durée du mandat Date de nomination 27/02/2019 Durée du mandat Indéterminée Délégué(s) à la gestion journalière Régime de signature statutaire Sous réserve de la Loi Luxembourgeoise et des présents Statuts, la Société est valablement engagée ou représentée à l'égard des tiers par : 10.1 si la Société a un Gérant Unique, la seule signature du Gérant Unique; 10.2 si la Société a plus d'un (1) Gérant, la signature unique de tout Gérant, à condition cependant que si des catégories différentes de Gérants (à savoir Gérant de catégorie A et Gérant de catégorie B) sont nommés, également la signature unique de tout Gérant (y compris par le biais de la représentation); 10.3 la signature unique de toute personne à qui un tel pouvoir aura été délégué conformément à l'Article 11. Durée du mandat Date de nomination 05/07/2018 Durée du mandat Indéterminée Personne(s) chargée(s) du contrôle des comptes ERNST & YOUNG [2] ERNST & YOUNG N° d'immatriculation au RCS B47771 Dénomination ou raison sociale ERNST & YOUNG Forme juridique Société anonyme Siège social Numéro 35E Rue Avenue John F.

Pipe Mfg Liquid Color App Snapshot final (1) P I P E M A N U FAC T U R E R P R E S S U R E / N O N - P R E S S U R E P I P E S • Provide a safe and compliant manufacturing environment for all team members • Improve weatherability and outdoor exposure longevity in field and yard environments • Increase color consistency and enhance pipe appearance • Reduce scrap rates and eliminate order rejections • Meet required compliance and regulatory approvals • Incur no capital expense for dosing & handling equipment • Provided a customer-centric approach focused on gaining operational efficiencies to support an improved manufacturing environment • Offered formulation expertise and problem-solving experience to upgrade pipe performance • Attained finely dispersed TiO2 and color distribution throughout the pipe, meeting quality requirements while reducing scrap rates • Delivered solutions with extensive NSF, UL and pipe industry approvals • Supplied dosing equipment to eliminate capital costs, backed with on-call technical support ColorMatrix™ Liquid Colorant + Dosing Equipment KEY REQUIREMENTS WHY AVIENT?

S E M I C O N D U C TO R PAC K A G IN G O E M S P E C I A L T Y , S T A T I C D I S S I P A T I V E P A C K A G I N G • Provide protection against electrostatic discharge (ESD) and environmental variations • Ensure highly specialized, clean manufacturing conditions • Deliver stringent quality control of ionic and metal contamination • Maintain availability of raw materials across a global supply chain • Ability to translate production globally • Protected critical electronics from ESD while providing an environmental barrier • Adhered to strict quality and cleanliness controls from raw material handling through production to help maintain high-purity standards, such as ultra-clean feeders, deionized water, and specific HVAC systems, supporting quality initiatives, including PCS reviews, eCoA, and HA assessments • Exceeded customer expectations for controlling ionic and metal contamination down to parts per billion (PPB) • Offered global capabilities with local support and material supply to meet growing semiconductor industry needs Stat-Tech Static Dissipative Formulations KEY REQUIREMENTS WHY AVIENT?

E M P RE S A L Í D E R E M B E N S DE C O N S U M O E M B A L A G E M – C U I D A D O S C O R P O R A I S • Ofereça um retorno rápido em novos designs para melhorar a velocidade de lançamento no mercado • Crie consistência visual e identidade de marca ao navegar pelos esforços de desenvolvimento com partes externas • Entregue orientação sobre tendências de cores • Entregamos mais de 20 cores personalizadas e aprovadas, utilizando o conhecimento do mercado e das tendências • Empregamos sessões de colaboração virtuais e no local para uma resposta rápida a decisões cruciais sobre cores • Trabalhamos com todas as partes necessárias, incluindo empresas de design, fabricantes e equipes de engenharia interna para proteger a integridade da marca Centros de design e tecnologia ColorWorks – São Paulo PRINCIPAIS REQUISITOS POR QUE A AVIENT?

Rosenau Page 84 United States 81% Europe Canada 15% Asia 2% 2011 Revenue: $0.9 Billion2011 Revenue: $0.9 Billion SolutionsSolutions At a Glance Performance Products and Solutions Europe 2% 2% $400 $600 $800 $1,000 $1,200 0.0% 2.0% 4.0% 6.0% 8.0% 10.0% 12.0% 14.0% 2006 2007 2008 2009 2010 2011 2015 S a le s ($ m il li o n s) O p e ra ti n g I n c o m e % o f S a le s Operating Income % and Revenue 2011 Revenue by Industry Segment2011 Revenue by Industry Segment Expanding ProfitsExpanding Profits OI % of Sales Sales 9-12% Appliance 4% Building & Construction 30% Wire & Cable 17% Electrical & Electronics 2% Consumer 4% Packaging 9% Industrial 20% Misc. 2% HealthCare 2% Transportation 8% Textiles 2% Target Page 85 • Trend toward more affordable housing favors our product 1.5 2.0 2.5 Housing Starts (in million units) 50 year average Market Dynamics Performance Products and Solutions • Ultimate housing recovery presents substantial upside to already record- setting results Source: Historical Data from the US Census Bureau, 2012 estimate is a PolyOne projection. 0.0 0.5 1.0 '87 '89 '91 '94 '96 '98 '00 '02 '04 '06 '08 '10 '12 Page 86 Value Proposition • Premier provider of specialized vinyl and supply chain solutions, leading the industry in innovation and service Transformation Highlights • Management upgrades ensure that each PP&S business Value Proposition and Transformation Highlights Performance Products and Solutions • Management upgrades ensure that each PP&S business maximizes performance • Asset realignment and Lean Six Sigma reduce costs • Strengthened relationship with winning customers • Increased differentiation in all business units > $12B Addressable Market Page 87 Key Differentiators Performance Products and Solutions • Providing application design, material design and / or process design assistance not available from competitors • Capability to improve joint value streams • We are the best innovator in our space • We are the best innovator in our space • Expanding customers’ opportunities by providing innovative materials and marketing ideas • We provide world-class customer service and delivery performance Page 88 13.7% 14.3% 15.5% 9.9% 6.2% 5.4% 2006 2007 2008 2009 2010 2011 WC % of Sales • Best-in-class working capital management and delivery performance • Improved raw material Areas of Focus – Operational Excellence Performance Products and Solutions 2006 2007 2008 2009 2010 2011 89.1% 92.0% 94.2% 93.4% 93.4% 94.0% 2006 2007 2008 2009 2010 2011 On-Time Delivery • Improved raw material positions, sourcing savings • PolyOne pilot site for many LSS and manufacturing excellence programs *As measured to customer request date * Page 89 • reFlexTM Bioplasticizers Applications: Wide variety of flexible vinyl-based products • GeonTM HC for Healthcare � Applications: Medical device housings, specialty tubing � Customer benefits: Withstand aggressive antiseptics Key Innovations Performance Products and Solutions � Applications: Wide variety of flexible vinyl-based products � Customer benefits: Lower carbon footprint, improved productivity • GeonTM SF Super Flow � Applications: Large appliance parts, molded siding panels � Customer benefits: Flame retardancy, detergent resistance Page 90 Critical Imperatives and 2015 Goal Performance Products and Solutions Critical Imperatives • Accelerate innovation - grow in new applications not historically served with vinyl • Drive continuous improvement in manufacturing and working capital efficienciesworking capital efficiencies • Selectively leverage construction recovery 2015 Goal • 9 - 12% return on sales Page 91 Page 92

  • Stable and controlled dielectric constant - from 2.6 to 23 • Very low losses even at mmWaves • Isotropic material - no glass fibers • Can be injection molded and machined APPLICATION BULLETIN STABLE RF PROPERTIES OVER A WIDE FREQUENCY RANGE 0 ,0 2 ,0 4 ,0 6 ,0 8 ,0 1 0 ,0 1 2 ,0 0 1 0 2 0 3 0 4 0 5 0 6 0 D ie le ct ri c co n s ta n t F re que nc y [G H z ] P R E P E R M ® P P E 95 0 P R E P E R M ® P P E 80 0 P R E P E R M ® P P E 44 0 P R E P E R M ® P P E 32 0 P R E P E R M ® P P E 26 0 LOW LOSSES UP TO mmWAVE FREQUENCIES* BATCH-TO-BATCH STABILITY DURING PRODUCTION * Measurements performed at VTT Technical Research Centre of Finland Ltd in 2018. D ie le ct ri c co ns ta nt Lo ss ta ng en t D ie le ct ri c co ns ta nt Frequency [GHz] Frequency [GHz] Pallet number (1250 kg/pallet) PREPERM™ PPE950 PREPERM™ PPE800 PREPERM™ PPE440 PREPERM™ PPE320 PREPERM™ PPE260 -- Dielectric constant target -- +/- 2% 3 ,7 6 3 ,7 8 3 ,8 0 3 ,8 2 3 ,8 4 3 ,8 6 3 ,8 8 3 ,9 0 3 ,9 2 3 ,9 4 0 1 2 3 4 5 6 7 8 D ie le ct ri c co n s ta n t P a lle t numbe r (1 2 5 0 k g/pa lle t ) D ie le c t ric c o n s t a nt t a rge t +/ - 2 % 0 ,0 0 0 0 ,0 0 2 0 ,0 0 4 0 ,0 0 6 0 ,0 0 8 0 ,0 1 0 0 1 0 2 0 3 0 4 0 5 0 6 0 L o s s t a n g e n t F re que nc y [G H z ] P R E P E R M ® P P E 95 0 P R E P E R M ® P P E 80 0 P R E P E R M ® P P E 44 0 P R E P E R M ® P P E 32 0 P R E P E R M ® P P E 26 0 0 ,0 0 0 0 ,0 0 2 0 ,0 0 4 0 ,0 0 6 0 ,0 0 8 0 ,0 1 0 0 1 0 2 0 3 0 4 0 5 0 6 0 L o s s t a n g e n t F re que nc y [G H z ] P R E P E R M ® P P E 95 0 P R E P E R M ® P P E 80 0 P R E P E R M ® P P E 44 0 P R E P E R M ® P P E 32 0 P R E P E R M ® P P E 26 0 0 ,0 0 0 0 ,0 0 2 0 ,0 0 4 0 ,0 0 6 0 ,0 0 8 0 ,0 1 0 0 1 0 2 0 3 0 4 0 5 0 6 0 L o s s t a n g e n t F re que nc y [G H z ] P R E P E R M ® P P E 95 0 P R E P E R M ® P P E 80 0 P R E P E R M ® P P E 44 0 P R E P E R M ® P P E 32 0 P R E P E R M ® P P E 26 0 Copyright © 2022, Avient Corporation.

Wire & cable manufacturer W I R E & C A B L E M A N U FAC T U R E R A E R O N A U T I C D A T A T R A N S M I S S I O N C A B L E S • Permanent contrast marking meeting aerospace industry standards SAE AS4373F and EN-3475-706 • Benign marking that, compared to infrared (IR) laser marking, will not damage the jacket surface • Elevated temperature performance in corrosive environments, maintaining dielectric properties under continuous service • No vital optical fiber or data transmission cable interference • Demonstrated fluorinated ethylene propylene (FEP) application expertise incorporating laser marks • Provided formulation expertise in PTFE alternatives • Delivered a high-quality product with no clumping during the extrusion process • Offered a proven array of specific aeronautic colors • Provided commercial, technical, and operational support KEY REQUIREMENTS APPEARANCE + PERFORMANCE WHY AVIENT?

U TG ® H U N T I N G & S H O OT I N G S P O RT S G U N M A G A Z I N E H O U S I N G • Good dimension stability with low warpage at different temperature ranges (70˚C, room temperature, -40˚C) • Good appearance with less glass fiber exposure • Provided durable and impact-resistant glass fiber reinforced formulation with excellent surface finish and good dimensional stability for smooth operation • Passed all temperature durability and drop tests to confirm use in outdoor environments • Collaborated with customer via technology services to accelerate product development Bergamid™ Customized Polyamide Formulation KEY REQUIREMENTS WHY AVIENT?

M E D I C A L E Q U I P M E N T M A N U FA C T U R E R S U R G I C A L X - R A Y G L A S S E S • Replace lead while providing uniform shielding performance • Radiation shielding up to 140KeV • Improve glasses design • Compliance with Radiation Protection Regulation: Adult eye exposure must be below 20 mSv per calendar year • Conducted extensive testing to ensure comparable and uniform shielding performance • Improved geometric flexibility • Lowered shielding component costs 30-50% by eliminating machining and assembly steps (associated with lead) • Reduced weight of the glasses and enabled a more ergonomic design • Eliminated disposal concerns associated with lead Trilliant™ XR Lead Replacement Thermoplastics KEY REQUIREMENTS WHY AVIENT?