2 Corruption de représentants du gouvernement 2 Corruption commerciale 3 Paiements de facilitation et dessous-de-table 3 Travailler avec des mandataires, des distributeurs et d’autres tiers 3 Diligence raisonnable et processus d’approbation 4 Signauz d’alerte 4 Exigences en matière de comptabilité et de tenue des comptes 4 Signalement d’infractions possibles 5 Service d’assistance en matière de déontologie d’Avient 5 Protection contre les représailles 5 Guide de référence rapide: LES CHOSES À FAIRE ET À NE PAS FAIRE EN MATIÈRE DE LC 6 1 Notre politique mondiale de lutte contre la corruption Avient interdit strictement la fraude, la corruption et les autres pratiques commerciales malhonnêtes dans toutes ses activités commerciales dans le monde entier. subject= 4 Diligence raisonnable et processus d’approbation Avant de s’engager ou de renouveler une entente en place avec un mandataire commercial, un distributeur ou tout autre tiers, les Services juridiques doivent procéder à un examen et donner leur approbation. Table des matières Amérique du Nord Siège social mondial Avon Lake, États-Unis 33587 Walker Road Avon Lake, OH, États-Unis 44012 Sans frais : +1 866 765-9663 Téléphone : +1 440 930-1000 Télécopieur : +1 440 930-3064 Asie-Pacifique Siège social régional Shanghai, Chine 2F, Bloc C 200, Jinsu Road Pudong, 201206 Shanghai, Chine Téléphone : +86 (0) 21 6028 4888 Télécopieur : +86 (0) 21 6028 4999 Amérique du Sud Siège social régional Sao Paulo, Brésil Av.

2 Soborno de funcionarios del gobierno 2 Soborno comercial 3 Pagos de facilitación y coimas 3 Trabajar con agentes, distribuidores y otros terceros 3 Proceso de debida diligencia y aprobación 3 Señales de alerta 4 Requisitos de contabilidad y mantenimiento de registros 4 Denuncia de posibles transgresiones 4 Línea directa de ética de Avient 5 Protección contra represalias 5 Referencia rápida: LO QUE SE DEBE Y NO SE DEBE HACER PARA EVITAR EL SOBORNO Y LA CORRUPCIÓN 6 1 Política global antisoborno y anticorrupción de nuestra empresa Avient prohíbe terminantemente el fraude, el soborno y otras prácticas comerciales corruptas en todas sus operaciones comerciales llevadas a cabo en cualquier parte del mundo. subject= 4 Para minimizar el riesgo, Avient debe considerar ciertos factores antes de entablar una relación con terceros, y todos los terceros deben cumplir con los siguientes estándares: • Buena reputación: tienen la experiencia y los conocimientos necesarios Índice Norteamérica Sede central global de Avon Lake, Estados Unidos 33587 Walker Road Avon Lake, OH, Estados Unidos 44012 Número gratuito: +1 866 765 9663 Teléfono: +1 440 930 1000 Fax: +1 440 930 3064 Asia Pacífico Sede central regional de Shanghái, China 2F, Block C 200 Jinsu Road Pudong, 201206 Shanghái, China Teléfono: +86 (0) 21 6028 4888 Fax: +86 (0) 21 6028 4999 Sudamérica Sede central regional de San Pablo, Brasil Av.

2 Corruption de représentants officiels publics 2 Corruption commerciale 3 Paiements de facilitation et commissions occultes 3 Travailler avec des agents, distributeurs et autres tiers 3 Diligence raisonnable et processus d’approbation 3 Alertes 4 Exigences en matière de comptabilité et de tenue des registres 4 Signalement des violations potentielles 4 Ligne d’assistance Éthique d’Avient 5 Protection contre les représailles 5 Référence rapide : ABAC, À FAIRE ET À NE PAS FAIRE 6 1 Notre Politique mondiale de lutte contre la corruption et les pots-de-vin Avient interdit strictement la fraude, les pots-de-vin et autres pratiques commerciales corrompues dans toutes ses opérations commerciales et partout dans le monde. subject= 4 acceptent de respecter les lois ABAC. Cette interdiction s’applique que l’offre ou le paiement soit effectué directement ou par l’intermédiaire d’une autre personne • Faire des saisies trompeuses, incomplètes ou fausses dans les livres et registres d’Avient • Ignorer les alertes lorsque vous traitez avec des tiers Table des matières Amérique du Nord Siège mondial d’Avon Lake, États-Unis 33587 Walker Road Avon Lake, Ohio, États-Unis 44012 Numéro gratuit : +1-866-765-9663 Téléphone : +1-440-930-1000 Télécopie : +1-440 930 3064 Asie Pacifique Siège régional de Shanghai, Chine 2F, Block C 200 Jinsu Road Pudong, 201206 Shanghai, Chine Téléphone : +86 (0) 21 6028 4888 Télécopie : +86 (0) 21 6028 4999 Amérique du Sud Siège régional de Sao Paulo, Brésil Av.

Thermoplastic Elastomers How TPEs can help medical and pharmaceutical manufacturers meet growing global demand 2© 2020 Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 THE OPPORTUNITY: EFFICIENT ALTERNATIVES TO VULCANIZED RUBBER Is there a capacity crunch on the horizon? In addition, when used to produce easy-open pill bottles in various colors that can be clearly identified, TPEs aid arthritic patients while they self- administer medications at home. 4. Parts Cost Surplus Stock Carbon Footprint Power Consumption Production Time TPE Benefits TPEs can reduce: TPE Applications TPEs can used to produce: Better grips on instruments Easy branding Easy-to-open pill bottles Needs to Meet Future Growth 2010 TPE Substrate 2030 Futu re De man d 2050 Supply Chain Cap acity TPE Substrate 4© 2020 Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 CASE IN POINT: STOPPERS AND SEPTUMS Versaflex™ HC TPE from Avient offers customers an exceptional alternative to rubber for septums and stoppers.

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AVIENT SOLUTION NON-HALOGEN FLAME RETARDANT LEARN MORE Copyright © 2025, Avient Corporation.

AVIENT SOLUTION NON-HALOGEN FLAME RETARDANT LEARN MORE Copyright © 2025, Avient Corporation.

F I R S T Q U A R T E R 2 0 2 2 R E S U L T S $123 $136 2021 2022 $0.89 $0.99 2021 2022 Q1 2022 PERFORMANCE ( T O TA L C O M PA N Y ) 4 $1,162 $1,294 2021 2022 + 11% (+ 14% excluding FX) Adjusted EPS + 11% (+ 15% excluding FX) + 11% (+ 16% excluding FX) (in millions) (in millions) Sales Adjusted Operating Income Q1 2022 SEGMENT PERFORMANCE 5 CAI $609 $650 Sales ($ in millions) SEM Distribution $89 $95 Operating Income + 7% (+ 10% excluding FX) $363 $433 Sales $24 $24 Operating Income + 19% Flat (1) $217 $245 Sales $34 $40 Operating Income + 7% (+ 11% excluding FX) + 13% (+ 17% excluding FX) + 18% (+ 20% excluding FX) Q1 2021 $1,162 $123 Sustainable Solutions 19 8% 7 Healthcare 32 21% 6 Composites (excl. Morgan • New Senior Secured Term Loan B and new Senior Unsecured Notes • Potential proceeds from sale of Distribution business modeled to pay off 5.25% senior notes due 2023 and Term Loan • Acquisition aligned with Avient’s track record of disciplined capital allocation policy • Existing dividend policy maintained, focus on deleveraging in the near term (1) (1) Pro forma for the acquisition of Dyneema® and potential divestiture of Distribution, including repayment of senior notes due 2023 and Term Loan Cash and Cash Equivalents 595$ Senior Secured Term Loan due 2026 605$ New Senior Secured Term Loan B 500 Total Senior Secured Debt 1,105$ Senior Unsecured Notes due 2025 650$ New Senior Unsecured Notes 740 Total Senior Unsecured Debt 1,390$ Total Debt 2,495$ Net Debt 1,900$ 2022 Pro forma Adjusted EBITDA 660$ Net Debt / Adjusted EBITDA 2.9x Pro Forma Capitalization (2022 estimates, all figures in $M) T WO - Y E A R L E V E R AG E G OA L 24 3.5x 2.7x 1.7x 2.9x 2.5x 2.2x 2019PF 2020PF 2022E 2022PF 2023E 2024E Dyneema® AcquisitionClariant Color Acquisition (1) Pro forma for the acquisition of the Clariant Color business (2) Pro forma for the acquisition of Dyneema® and potential divestiture of Distribution, including repayment of senior notes due 2023 and Term Loan (1) (1) (2) 25 P RO F O R M A M O D E L I N G 2022E Pro Forma Pro Forma ($M) w/ Dyneema w/Sale Revenue 5,100$ 415$ 5,515$ (1,775)$ 3,740$ Adjusted EBITDA 635 130 765 (105) 660 EBITDA % 12% 31% 14% 6% 18% Pro Forma EPS (Adjusted) 3.50$ 0.00$ 3.50$ (0.56)$ 2.94$ Pro Forma EPS (excl. amortization) 3.96$ 0.35$ 4.31$ (0.56)$ 3.75$ Leverage (12/31/2022E) Net Debt / Adjusted EBITDA 1.7x 3.5x 2.9x Avient Dyneema Distribution® ® OUR SPECIALTY JOURNEY AC Q U I S I T I O N H I S TO RY 27 Commercial Resources(1) Operating Income ($ in millions) Operating Margins 259 360 At Acquisition 2021 $40 $122 At Acquisition 2021 9% 21% At Acquisition 2021 Established Acquisitions (> 7 years) + 39% + 210% + 1200 bps (1) Commercial Resources include associate headcount in R&D / Technical, Marketing and Sales C L A R I A N T C O LO R AC Q U I S I T I O N 28 $133 $205 2019PF 2021 28 Clariant Color EBITDA Growth Purchase Price Multiple 10.8x 7.0x 6.1x 2019PF 2021 2021 w/ Full Synergies • Acquisition of Clariant Color business significantly expanded presence in healthcare, packaging and consumer end markets • Strength of portfolio – double-digit annual EBITDA growth since acquisition • $54 million of synergies realized in 2021 • Acquisition completed on July 1, 2020 for $1.45 billion. Three Months Ended March 31, 2022 Reconciliation to Condensed Consolidated Statements of Income GAAP Results Special Items Adjusted Results Operating Income $ 128.6 $ 7.8 $ 136.4 Income before income taxes $ 111.1 $ 7.7 $ 118.8 Income tax expense - GAAP (26.6) — (26.6) Income tax impact of special items — (2.0) (2.0) Tax adjustments — 1.5 1.5 Net income attributable to noncontrolling interests (0.3) — (0.3) Net income attributable to Avient shareholders $ 84.2 $ 7.2 $ 91.4 EPS $ 0.91 0.08 $ 0.99 Weighted-average diluted shares 92.3 92.3 92.3 1 Three Months Ended March 31, 2021 Reconciliation to Condensed Consolidated Statements of Income GAAP Results Special Items Adjusted Results Operating Income $ 120.4 $ 2.4 $ 122.8 Income before income taxes $ 102.6 $ 2.4 $ 105.0 Income tax expense - GAAP (22.9) — (22.9) Income tax impact of special items — (0.9) (0.9) Tax adjustments — 1.1 1.1 Net income attributable to noncontrolling interests (0.4) — (0.4) Net income attributable to Avient shareholders $ 79.3 $ 2.6 $ 81.9 EPS $ 0.86 0.03 $ 0.89 Weighted-average diluted shares 92.2 92.2 92.2 Year Ended December 31, 2021 Reconciliation to Condensed Consolidated Statements of Income GAAP Results Special Items Adjusted Results Operating income $ 381.2 $ 47.8 $ 429.0 Income from continuing operations before income taxes $ 304.6 $ 57.1 $ 361.7 Income tax expense - GAAP (74.0) — (74.0) Income tax impact of special items — (13.0) (13.0) Tax adjustments — 5.9 5.9 Net income attributable to noncontrolling interests 0.2 — 0.2 Net income from continuing operations attributable to Avient shareholders $ 230.8 $ 50.0 $ 280.8 EPS $ 2.51 0.54 $ 3.05 Weighted-average diluted shares 92.1 92.1 92.1 2 Reconciliation of EBITDA by Segment Three Months Ended March 31, Year Ended December 31, 2022 2021 2021 Operating income: Color, Additives and Inks $ 94.5 $ 88.8 $ 303.1 Specialty Engineered Materials 39.7 34.2 132.0 Distribution 24.2 24.0 93.2 Corporate and eliminations (29.8) (26.6) (147.1) Operating income $ 128.6 $ 120.4 $ 381.2 Items below OI in Corporate: Other income, net $ (0.6) $ 1.5 $ (1.3) Depreciation & amortization: Color, Additives and Inks $ 26.0 $ 27.4 $ 105.7 Specialty Engineered Materials 7.8 7.8 31.7 Distribution 0.2 0.2 0.8 Corporate and eliminations 3.8 1.7 7.7 Depreciation & Amortization $ 37.8 $ 37.1 $ 145.9 EBITDA: Color, Additives and Inks $ 120.5 $ 116.2 $ 408.8 Specialty Engineered Materials 47.5 42.0 163.7 Distribution 24.4 24.2 94.0 Corporate and eliminations (26.0) (24.9) (140.7) EBITDA $ 165.8 $ 159.0 $ 525.8 Reconciliation of Sales, Operating Income and EBITDA - Distribution Year Ended December 31, 2006 2011 2016 Sales $ 732.8 $ 996.5 $ 1,071.0 Operating income 19.2 56.0 68.2 Depreciation & amortization 1.5 0.7 0.7 EBITDA $ 20.7 $ 56.7 $ 68.9 3 Three Months Ended March 31, Year Ended December 31, Reconciliation to EBITDA and Adjusted EBITDA: 2022 2021 2021 Net income from continuing operations – GAAP $ 84.5 $ 79.7 $ 230.6 Income tax expense 26.6 22.9 74.0 Interest expense 16.9 19.3 75.3 Depreciation and amortization from continuing operations 37.8 37.1 145.9 EBITDA $ 165.8 $ 159.0 $ 525.8 Special items, before tax 7.7 2.4 57.1 Depreciation and amortization included in special items (2.1) (0.5) (1.7) Adjusted EBITDA $ 171.4 $ 160.9 $ 581.2 4 Masseto IR Presentation - Final.pdf Avient Corporation �specialty Portfolio Transformation Continues with Dyneema Acquisition DISCLAIMER Slide Number 3 Slide Number 4 Slide Number 5 Q1 2022 SALES AND OPERATING INCOME�(Total Company) Slide Number 7 Slide Number 8 Slide Number 9 Slide Number 10 FIT with Four Pillar Strategy Dyneema® overview Slide Number 13 Slide Number 14 Dyneema® in the Value Chain Demand trends Products Avient’s Existing Composites Portfolio Avient’s Composites Portfolio�Sales and Ebitda Distribution Divestiture Considerations Distribution highlights Dyneema® Transaction Overview Capital structure / Leverage Two-Year Leverage Goal Pro forma modeling Our Specialty Journey Acquisition History Clariant Color Acquisition Specialty Transformation 2022 ebitda margins vs. peers Culture and People Our Specialty Journey continues Slide Number 33 Avient Acquisition of Dyneema and Q1 2022 Results.pdf Masseto IR Presentation - 4.19 (515pm) - with attachments.pdf

HELPING PVC PROCESSORS OPTIMIZE PERFORMANCE, CONTROL AND EFFICIENCY IN THE EXTRUSION PROCESS © 2020, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 Make density and consistency a variable of your process, not just an output. A decrease in density of just 0.01–0.02 g/cc can yield 4% annual savings in material consumption, while generating a 4% increase in extruder productivity.

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