This high-tech facility is helping us to understand the chemistry of polymers in the mechanical recycling process to see how and where problems occur. It has already started producing useful data and we will use this to continue to develop new and unique masterbatch solutions with proven science behind how they perform during recycling processes, offering customers a portfolio certified by the laboratory. Sources: 1)    https://verpackungsgesetz-info.de/wp-content/uploads/2021/06/twopager-packaging-amendment-1.pdf 2)    https://ec.europa.eu/commission/presscorner/detail/en/IP_18_3846 3)    https://verpackungsgesetz-info.de/en/#verpackungsgesetz

This high-tech facility is helping us to understand the chemistry of polymers in the mechanical recycling process to see how and where problems occur. It has already started producing useful data and we will use this to continue to develop new and unique masterbatch solutions with proven science behind how they perform during recycling processes, offering customers a portfolio certified by the laboratory. Sources: 1)    https://verpackungsgesetz-info.de/wp-content/uploads/2021/06/twopager-packaging-amendment-1.pdf 2)    https://ec.europa.eu/commission/presscorner/detail/en/IP_18_3846 3)    https://verpackungsgesetz-info.de/en/#verpackungsgesetz

This high-tech facility is helping us to understand the chemistry of polymers in the mechanical recycling process to see how and where problems occur. It has already started producing useful data and we will use this to continue to develop new and unique masterbatch solutions with proven science behind how they perform during recycling processes, offering customers a portfolio certified by the laboratory. Sources: 1)    https://verpackungsgesetz-info.de/wp-content/uploads/2021/06/twopager-packaging-amendment-1.pdf 2)    https://ec.europa.eu/commission/presscorner/detail/en/IP_18_3846 3)    https://verpackungsgesetz-info.de/en/#verpackungsgesetz

This high-tech facility is helping us to understand the chemistry of polymers in the mechanical recycling process to see how and where problems occur. It has already started producing useful data and we will use this to continue to develop new and unique masterbatch solutions with proven science behind how they perform during recycling processes, offering customers a portfolio certified by the laboratory. Sources: 1)    https://verpackungsgesetz-info.de/wp-content/uploads/2021/06/twopager-packaging-amendment-1.pdf 2)    https://ec.europa.eu/commission/presscorner/detail/en/IP_18_3846 3)    https://verpackungsgesetz-info.de/en/#verpackungsgesetz

Many customers have asked us to complete their supplier questionnaire. We believe you will find our programs make us an industry leader in these areas. Business Continuation Plan Backup plans have been established in some facilities in case of production site/line disruption to ensure service continuity to customers.

COLOR, MATERIAL & FINISH DESIGN SERVICE FIVE WAYS TO BRING CLARITY TO COLOR, MATERIAL & FINISH SELECTION D E M Y S T I F Y I N G C M F FINDING THE RIGHT BALANCE BETWEEN LOOK, FEEL AND FUNCTION IS IMPORTANT BUT CHALLENGING NEARLY 90% OF ALL PURCHASE DECISIONS ARE MADE SUBCONSCIOUSLY. When you work with us, we’ll help keep you at the forefront of industry trends and insights based on our own findings and those of the larger Avient organization. FEEL WHEEL LOW HIGH COST LI G HT H EA VYD EN SIT Y S O F T H A R D D U R O M E T E R C O LD W A RMTH ERM AL OPAQUE TRANSPARENT OPACITY M ATTE GLO SS GLOSS L EV EL W E A K S T R O N G T E N S IL E S T R E N G T H TACKY SLIPPERY SURFACE FEEL LOW - HIGH COST LI G H T - H EAVY D EN SIT Y S O F T - H A R D D U R O M E T E R C O LD - W ARM TH ERM AL OPAQUE - TRANSPARENT OPACITY MATTE - G LO SS GLOSS L EV EL W E A K - S T R O N G T E N S IL E S T R E N G T H TACKY - SLIPPER Y SURFACE FEEL FEEL WHEEL LOW HIGH COST LI G HT H EA VYD EN SIT Y S O F T H A R D D U R O M E T E R C O LD W A RMTH ERM AL OPAQUE TRANSPARENT OPACITY M ATTE GLO SS GLOSS L EV EL W E A K S T R O N G T E N S IL E S T R E N G T H TACKY SLIPPERY SURFACE FEEL LOW - HIGH COST LI G H T - H EAVY D EN SIT Y S O F T - H A R D D U R O M E T E R C O LD - W ARM TH ERM AL OPAQUE - TRANSPARENT OPACITY MATTE - G LO SS GLOSS L EV EL W E A K - S T R O N G T E N S IL E S T R E N G T H TACKY - SLIPPER Y SURFACE FEEL WE WORK WITH YOU TO DEVELOP THE FOLLOWING: • Market Analysis & Research • Material Innovation • CMF Recommendations • Custom Color Creation DESIGN MOTIVATES EXAMPLE MATERIAL PROFILE www.avient.com Copyright © 2020, Avient Corporation.

Customers count on us for on-time, high-quality products and services, and we proudly accept the challenge to deliver. We expect our supplier base to help us achieve this pledge. D O LL A R S Community Service Our community service work extends well beyond our important clean-up efforts.

All Rights Reserved 2025 16 Q1 2025 organic revenue growth - by region (3%) +2% +9% +17% Year-over-year revenue growth, excludes the impact of foreign exchange US & Canada Europe, Middle East & Africa Asia Latin America 17Copyright © . All Rights Reserved 2025 Avient 2024 sales BUSINESS SEGMENTS END MARKETS REGIONS 63% 37% S E M C AI 23% 20% 15% 10% 10% 8% 7% 4% 3% Packaging Telecom Energy Defense Healthcare Building & construction Transportation Industrial Consumer 41% 35% 18% 6% US & Canada Latin America Asia Europe, Middle East and Africa 25Copyright © . Management excludes intangible asset amortization from adjusted EPS as it believes excluding acquired intangible asset amortization is a useful measure of current period earnings per share.

Introduction & strategic overview Ashish Khandpur AVIENT INVESTOR DAY December 4, 2024 Copyright © . All Rights Reserved 2024 8 The fast-changing world creating opportunities for us... All Rights Reserved 2024 28 Solutions provider of customized color and functionality to enhance and improve polymers Color, Additives and Inks – an overview 34% 37%21% 8% 2023 sales by region US, Canada Asia Europe, Middle East, Africa Latin America $2.0B • Differentiate and enhanced aesthetic appeal of our customers’ products • Enable sustainability through our solutions • Safeguard and preserve packaged contents • Extend product shelf life #1 KEY E N D MARKETS PACKAGING CONSUMER HEALTHCARE BUILDING & CONSTRUCTION INDUSTRIAL TRANSPORTATION Copyright © .

Detto Comparente, della cui identità personale io Notaio sono certo, mi presenta e mi chiede di depositare nei miei atti, ai sensi e per gli effetti dell'art. 106 n. 4 della legge 16 feb- braio 1913 n. 89, ed ai fini di ogni adempimento di legge: 1. l'attestato del legale rappresentante della società "PolyO- ne S.à r.l Aderendo alla richiesta io Notaio assumo in deposito i docu- menti sopra descritti, che non presentano postille, abrasioni, correzioni o altri vizi evidenti e che vengono allegati, uni- tamente alla traduzione asseverata, in un'unica fascicolazio- ne, sotto la lettera "A", dispensatamene la lettura dal Compa- rente. - Ai sensi dell'art. 71 del R.D. 10 settembre 1914 n. 1326, il Comparente dichiara che il deposito avviene nell'interesse della detta società "PolyOne S.à r.l.". - Lo stesso prende atto della possibilità per chiunque di ri- chiedere copia autentica del documento in oggetto. F.TO: EDOARDO CORÒ F.TO: EDMONDO TODESCHINI Copia su supporto informatico conforme al documento originale nei miei atti, su supporto cartaceo ai sensi dell'art. 22 comma 2 D.Lgs 7 marzo 2005 n. 82, che rilascio in tempo utile per la sua registrazione, per uso Registro Imprese.