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 © .

LEARN MORE Avient Sustainability *The American Chemistry Council’s RC14001® standard is a 3rd party certification that provides a framework for companies to implement a comprehensive environmental, health, safety, and security management system, particularly within the chemical industry **World Resources Institute (WRI) Aqueduct Water Risk Atlas GOAL 2024 ACHIEVEMENT BUSINESS DRIVER 55% 2030 Greenhouse Gas Emissions Reduction in Scope 1 & 2 emissions vs. 2019 52% Energy efficiency improvements and green energy procurement Delivers energy efficiency & cost savings outcomes Alignment with stakeholder expectations and commitments 3% Annual Waste to Landfill Reduction in waste to landfill intensity 5% 50 “landfill free” sites Drives operational efficiencies and cost savings Enables circular economy and resource conservation 60% 2030 Renewable Energy Source electricity from renewable sources 61% Green electricity purchase agreements Decreases reliance on fossil fuel-driven energy sources Reduces scope 2 emissions in support of our GHG reduction target 90% 2030 Suppliers Assessed Assess supplier spend for alignment with our Sustainability objectives 75% EcoVadis to facilitate assessments Mitigates supply chain risk for Avient and our customers Drives transparency and accountability throughout the value chain N E W F O R 2 02 5 GOAL BUSINESS DRIVER 75% 2030 Environmental, Health & Safety Management Systems Sites achieving the ACC RC14001® certification* to support our culture of safety and sustainability A culture of safety and sustainability is a foundational strength of our company The ACC RC14001 certification drives business performance though ethical leadership, operational excellence, safety, and stakeholder trust Currently 47% of our sites are certified in 2024 100% 2030 Water Stewardship Sites implementing water stewardship plans in extremely high-risk areas as assessed using WRI Aqueduct Water Risk Atlas** Water stewardship plans enable proactive management of water-related risks, help safeguard operations, reduce environmental impact, and build stakeholder trust—turning environmental responsibility into a competitive advantage Currently 26% of our manufacturing sites are located in extremely high-risk water locations 100% Annual Community Engagement Sites actively engaged with their local communities Actively engaging in communities builds trust, fosters collaboration, and creates long-term value through trusted local partnerships 100% of our sites engaged with their communities in a positive way in 2024 Sustainability Report | 2024 13Contents | About Avient | Message from the CEO | Sustainability at Avient | Enabling a Sustainable World | Preserving the Planet | Culture of Safety & Sustainability | Governance | Appendix https://www.avient.com/company/sustainability/sustainability-report/goals-commitments/2030-goals-progress https://www.avient.com/company/sustainability/sustainability-report/goals-commitments/2030-goals-progress https://www.avient.com/company/sustainability/sustainability-report/goals-commitments/2030-goals-progress https://www.avient.com/company/sustainability/sustainability-report/goals-commitments/2030-goals-progress https://www.americanchemistry.com/ https://www.wri.org/aqueduct Sustainability Performance & Recognition Building on our culture of sustainability, Avient continues to be recognized by third party rating agencies and awards. Safety Milestones 2024 99.5% 45% 3851% Global Site Ergonomic Events Global Participation Safety Engagement Reduction in Hand Injuries YoY Improvement in Lost-time Injury Rate YoY 0.00 0.25 0.50 0.75 1.00 In ju ri e s p e r 10 0 W o rk e rs 0.40 Total Recordable Incident Rate (TRIR) by Year 2020 2021 2022 2023 2024 0.50 0.55 0.51 0.58 Sustainability Report | 2024 34Contents | About Avient | Message from the CEO | Sustainability at Avient | Enabling a Sustainable World | Preserving the Planet | Culture of Safety & Sustainability | Governance | Appendix Occupational safety, health and well-being are paramount at Avient because we understand the value of good performance in these areas to our people, their families, collective morale, operational costs, our contractors, the communities in which we operate, and our reputation.

Additional detail, systems, and performance metrics are provided in the Occupational Health & Safety section of this report. 2013 2014 2015 2016 2017 2018 2019 2020 2021 In ju ri e s p e r 10 0 W o rk e rs COVID-19 Protecting Our People as an Essential Business As a global organization, Avient recognized the early risks associated with the COVID-19 pandemic. continues on next page) 0% 20% 40% 60% 80% 100% 0% 20% 40% 60% 80% 100% 2005 2010 2015 2021 $14M $117M $273M $572M Adjusted EBITDA* from Specialty Applications % o f A d ju st e 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 HOME | Contents | Message from the CEO | Who We Are | People | Products | Planet | Performance | Metrics | IndexHOME | Contents | Message from the CEO | Who We Are | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2021 74 https://www.avient.com/company/policies-and-governance/code-conduct (1) 2019 and 2020 figures are pro forma to include a full year of the acquired Clariant Color business. (2) 2022 EPS figure reflects management guidance as of April 20, 2022 earnings call *End market revenue as a percent of total End Market Transformation* � �� �� �� �� �� �� 2006 2021 2006 2021 Transportation Building & Construction Healthcare Packaging Consumer 57% 21% 57% 22% 14% 43% 11% 10% 8% 10% 4% 19% 23% 15% � ����� ����� ����� ����� Adjusted EPS Growth 2019PF(1) 2020PF(1) 2021 2022F(2) $1.93 $3.05 $1.74 26% CAGR $3.50 Performance Overview (continued from previous page) Still, the repercussions of the ongoing health pandemic made for a difficult 2021 for all companies—and it did for Avient as well. Preete Retired Executive Vice President, Chief Strategy Officer, Monsanto Company Robert E.

Etyki, wysyłając e-mail na adres ethics.officer@Avient.com. 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 Informacje zastrzeżone i poufne obejmują: • 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 14 Spis treści Pytania i odpowiedzi Pyt.: Mój kierownik jest na urlopie.

Industrial Valle del Cinca S/N Apartado Barbastro, Huesca E-22300 Spain Design and Manufacture of Specialty Engineered Thermoplastics 65536-116858Certificate No: Page 8 of 53 ABS Quality Evaluations ABS Quality Evaluations, Inc. 1701 City Plaza Drive, Spring, TX 77389, U.S.A. Dominic Townsend, President Effective Date: 22 March 2024 Expiration Date: 28 February 2025 Revision Date: 22 March 2024 Avient Corporation - North Baltimore, OH 733 E.

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.

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 HOME | TOC 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. 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 SPIS TREŚCI WSTĘP NASZ KODEKS POSTĘPOWANIA SZACUNEK DLA WSZYSTKICH UCZCIWOŚĆ W PRACY UCZCIWOŚĆ W DZIAŁALNOŚCI BIZNESOWEJ SPOŁECZNA ODPOWIEDZIALNOŚĆ BIZNESU DANE KONTAKTOWE Pytania i odpowiedzi 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.

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.