Beggs /S/ ROBERT E. ABERNATHY Director February 20, 2024 Robert E. FEARON Non-Executive Chairman of the Board, Avient Corporation Retired Vice Chairman and Chief Financial and Planning Officer, Eaton Committees: 2, 4* ROBERT E.

Energy and Greenhouse Gas (GHG) Emissions (continued from previous page) Greenhouse Gas Emissions (MT Scope 1 &2) Intensity (MT Scope 1 & 2 GHG/MT sales) GHG Emissions � ������ .44 .28 .30 .50 .40 .30 .20 .10 .32 2019 2020 2021 2022 2023 .28 118 Resulting in 13,000 MWh Annual Savings Energy Saving Projects in E m is s (M ) E m is s In te ty (M G /M s al s) HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 54 https://sciencebasedtargets.org/ https://www.cdp.net/en Reducing Emissions Across Our Value Chain Scope 3 emissions include upstream emissions from products and services we procure from suppliers, as well as downstream emissions from the transportation of our products and the emissions generated from the use and disposal of our sold products. Portfolio Transformation Provides Foundation for Sustainable Long-Term Growth 2006 2014 2023 10.9% 5.4% 16.0% A d ju st d E B IT D A M ar g in % Total Company Revenue 60%+ Key Growth Drivers Sustainable Overlap Composites, Healthcare, Asia/LATAM Other HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | IndexHOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 66Sustainability Report | 2023 66 *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) (1)2020 is Pro Forma to include full year of the Clariant Color business (2)2022 is Pro Forma for the acquisition of APM and the divestiture of Distribution Revenue from Sustainable Solutions*Sustainable Solutions As highlighted in our Products section, Avient has a highly technical and broad portfolio of materials solutions that help our customers—and our planet—be more sustainable. Preete Retired Executive Vice President, Chief Strategy Officer, Monsanto Company Robert E.

Our Code of Conduct 2023 Table of Contents A Message from the CEO 1 Our Vision and Strategy 2 Core and Personal Values 2 Our Code of Conduct Guidelines for Ethical Behavior 4 Personal Values 4 Resolving Questions and Reporting Non-Compliance Situations 6 Ethics Hotline 6 Non Retaliation 6 Code of Conduct Application 7 Violations of the Code 7 Respect for All Diversity and Inclusion 9 Discrimination or Harassment 9 Workplace Relationships 9 Substance Abuse 10 Physical Security and Workplace Violence 10 Honesty at Work Accurate Information, Data and Records 12 Accounting Integrity 12 Company Communications 14 Safeguarding and Use of Assets 14 Proprietary and Confidential Information, Ideas and Intellectual Property 14 Privacy, Personal Information and Data Protection 15 Internet and E-mail Use 15 Social Media and Social Networking 15 Computer Security, Software Licensing and Copyrights 16 Insider Information and Trading 16 Political Contributions/Activities and Charitable Contributions 17 Government Investigations and Inquiries 17 Integrity in Our Business Fair Dealing 19 Bribery and Kickbacks 19 Agents and Consultants 20 Competition 20 Gifts and Hospitality 20 Conflicts of Interest 21 Self-Dealing 22 International Trade 22 Corporate Social Responsibility Sustainability 24 Safety, Health and Environment 24 Product and Service Safety 25 Respecting Human Rights 25 A Shared Commitment 25 Resources and Contact Information 26 1 A Message from the CEO Dear Avient Associates, As part of a growing, global company, we are faced with challenging situations and complex decision making.

Etyki, wysyłając e-mail na adres Ethics. KODEKS POSTĘPOWANIA | 12 NASZ KODEKS SZACUNEK DLA UCZCIWOŚĆ W DZIAŁALNOŚCI SPOŁECZNA ODPOWIEDZIALNOŚĆ Do dokumentacji biznesowej zaliczyć można m.in.: • projekt opracowania nowego produktu • wyniki przeprowadzonych testów • sprawozdania laboratoryjne • dane z badań • sprawozdania finansowe • sprawozdania dotyczące wydatków • faktury • rejestry czasu pracy • dokumentację pracowniczą • plany biznesowe • pisma, notatki biuletynów i wiadomości e-mail skierowane do pracowników • informacje opublikowane w The Loop Do informacji zastrzeżonych i poufnych zaliczyć można m.in.: • plany biznesowe i strategie działania • dane badawcze i techniczne • receptury produktów i dane dotyczące procesów technologicznych • zarządzanie produktem • tajemnice handlowe, technologie i wiedzę techniczną • informacje na temat pozycji Avient na tle konkurencji • niepublikowane informacje i prognozy finansowe • informacje o kosztach związanych z produktem • informacje o zaproponowanych umowach i transakcjach • informacje na temat klientów, dostawców, cen i inne informacje handlowe • oprogramowanie komputerowe i systemy opracowane dla naszej działalności • wszelkie inne informacje, które mogą być przydatne dla konkurencji KODEKS POSTĘPOWANIA | 13 NASZ KODEKS SZACUNEK DLA UCZCIWOŚĆ W DZIAŁALNOŚCI SPOŁECZNA ODPOWIEDZIALNOŚĆ Pyt.: Mój kierownik jest na urlopie.

Ashish Khandpur Presidente e amministratore delegato « Les décisions de notre entreprise ont des implications considérables dans le monde complexe et interconnecté d’aujourd’hui.

continues on next page) 0% 20% 40% 80% 0% 20% 40% 80% 2005 2010 2015 2021 $14M $117M $273M $572M Adjusted EBITDA* from Specialty Applications % o f A d ju st d E B IT D A * Specialty EBITDA DistributionJV’s Performance Products & Solutions Specialty Applications 7% 46% 86% 66% A Specialty Transformation Poised for Future Growth * Adjusted EBITDA is EBITDA excluding corporate costs and special items Sustainability Report | 2021 74 (1) 2019 and 2020 figures are pro forma to include a full year of the acquired Clariant Color business Preete Retired Executive Vice President, Chief Strategy Officer, Monsanto Company Robert E.

Green Tariffs) Renewable electricity technology type Renewable electricity mix, please specify 100% renewable Renewable electricity consumed via selected sourcing method in the reporting year (MWh) 1,991.2 Tracking instrument used Contract Total attribute instruments retained for consumption by your organization (MWh) 1,991.2 Country/area of origin (generation) of the renewable electricity/attribute consumed Sweden Commissioning year of the energy generation facility (e.g. date of first commercial operation or repowering) Vintage of the renewable energy/attribute (i.e. year of generation) 2021 Brand, label, or certification of the renewable electricity purchase No brand, label, or certification Comment Avient CDP Climate Change Questionnaire 2022 Friday, July 29, 2022 99 Country/area of renewable electricity consumption Italy Sourcing method Unbundled Energy Attribute Certificate (EAC) purchase Renewable electricity technology type Renewable electricity mix, please specify 100% renewable Renewable electricity consumed via selected sourcing method in the reporting year (MWh) 21,403.1 Tracking instrument used I-REC Total attribute instruments retained for consumption by your organization (MWh) 21,403.1 Country/area of origin (generation) of the renewable electricity/attribute consumed Italy Commissioning year of the energy generation facility (e.g. date of first commercial operation or repowering) Vintage of the renewable energy/attribute (i.e. year of generation) 2021 Brand, label, or certification of the renewable electricity purchase No brand, label, or certification Comment Country/area of renewable electricity consumption United States of America Sourcing method Unbundled Energy Attribute Certificate (EAC) purchase Renewable electricity technology type Renewable electricity mix, please specify Avient CDP Climate Change Questionnaire 2022 Friday, July 29, 2022 100 100% renewable Renewable electricity consumed via selected sourcing method in the reporting year (MWh) 100,008 Tracking instrument used US-REC Total attribute instruments retained for consumption by your organization (MWh) 100,008 Country/area of origin (generation) of the renewable electricity/attribute consumed United States of America Commissioning year of the energy generation facility (e.g. date of first commercial operation or repowering) Vintage of the renewable energy/attribute (i.e. year of generation) 2021 Brand, label, or certification of the renewable electricity purchase Green-e Comment C8.2j (C8.2j) Provide details of your organization’s renewable electricity generation by country in the reporting year.

We use supplier emission factors, Green-e residual mix, European residual mix, eGRID, and IEA emission factors.