Alguns exemplos de nossos registros de negócios incluem: • Desenvolvimento de novos produtos • Resultados de testes • Relatórios laboratoriais • Dados de pesquisa • Relatórios financeiros • Relatórios de despesas • Faturas • Registros de horário • Registros de funcionários • Planos de negócios • Cartas, informativos, memorandos e e-mails endereçados a colaboradores • Informações publicadas no Loop Informações exclusivas e confidenciais incluem: • Planos de negócios e estratégias direcionais • Dados de pesquisas e técnicos • Fórmulas de produtos e tecnologias de processos • Gerenciamento de produto • Segredos comerciais, tecnologias e “know-how” • Informações sobre nossa posição competitiva • Informações e projeções financeiras não publicadas • Informações sobre custos de produto • Informações sobre contratos e transações propostas • Informações sobre clientes, fornecedores, preços e outras informações comerciais • Software e sistemas de computador desenvolvidos para nossos negócios CÓDIGO DE CONDUTA | 13 SUMÁRIO INTRODUÇÃO NOSSO CÓDIGO DE CONDUTA RESPEITO POR TODOS HONESTIDADE NO TRABALHO INTEGRIDADE EM NOSSOS NEGÓCIOS RESPONSABILIDADE SOCIAL CORPORATIVA RECURSOS Perguntas e respostas P: Minha gerente está de férias e na ausência dela solicitaram que eu assinasse um contrato em nome da empresa.

Business Segments Color, Additive & Inks (CAI) 63% Specialty Engineered Materials (SEM) 37% End Markets Packaging 23% Consumer 20% Industrial 15% Defense 7% Healthcare 8% Telecom 3% Building & Construction 10% Energy 4% Transportation 10% Geography United States & Canada 41% Europe, Middle East & Africa 35% Asia 18% Latin America 6% Sustainability Report | 2024 8Contents | About Avient | Message from the CEO | Sustainability at Avient | Enabling a Sustainable World | Preserving the Planet | Culture of Safety & Sustainability | Governance | Appendix Message from Avient’s VP of Sustainability Avient Reaffirms Commitment to U.N. The Board’s Corporate Governance Guidelines outline its responsibilities and conduct, ensuring a balanced mix of skills, experience, and perspectives. A majority of employees have full-time contracts. 102–9 Supply chain Avient 2024 Annual Report—Form 10-K Pages 2–4 What We Do 102–10 Significant changes to the organization and its supply chain Avient 2024 Annual Report—Form 10-K Pages 8–10 What We Do Supplier Collaboration 102–11 Precautionary Principle or approach Avient 2024 Annual Report—Form 10-K Pages 8–13 102–12 External initiatives Who We Are Engaging with Our Stakeholders Security Becoming an Even Better Place to Work Strategic Partnerships and Alliances 102–13 Membership of associations Strategic Partnerships and Alliances Strategy 102–14 Statement from senior decision-maker Message from the CEO 102–15 Key impacts, risks, and opportunities Avient 2024 Annual Report—Form 10-K Pages 8–13 Amplifying Innovation for a Sustainable World Sustainability Report | 2024 53Contents | 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/products https://www.avient.com/sites/default/files/2025-03/380605_AVIENT_2024AR_full_250325.pdf https://www.avient.com/sites/default/files/2025-03/380605_AVIENT_2024AR_full_250325.pdf https://www.avient.com/sites/default/files/2025-03/380605_AVIENT_2024AR_full_250325.pdf https://www.avient.com/sites/default/files/2025-03/380605_AVIENT_2024AR_full_250325.pdf https://www.avient.com/sites/default/files/2025-03/380605_AVIENT_2024AR_full_250325.pdf https://www.avient.com/sites/default/files/2025-03/380605_AVIENT_2024AR_full_250325.pdf https://www.avient.com/sites/default/files/2025-03/380605_AVIENT_2024AR_full_250325.pdf https://www.avient.com/sites/default/files/2025-03/380605_AVIENT_2024AR_full_250325.pdf https://www.avient.com/sites/default/files/2025-03/380605_AVIENT_2024AR_full_250325.pdf https://www.avient.com/sites/default/files/2025-03/380605_AVIENT_2024AR_full_250325.pdf GRI Standard Disclosure Title 2024 Report Disclosures General Disclosures Ethics & Integrity 102–16 Values, principles, standards, and norms of behavior Who We Are Our Purpose and Strategic Framework 102–17 Mechanisms for advice and concerns about ethics Ethics Hotline and Reporting Governance 102–18 Governance structure Corporate Board Governance Environmental Health & Safety Avient 2024 Annual Report—Form 10-K Pages 14–15 & 68 Avient 2025 Proxy Statement—Pages 8–22 https://www.avient.com/investors/governance 102–20 Executive-level responsibility for economic, environmental, and social topics Corporate Board Governance Environmental Health & Safety Training & Development Inclusion & Impact Product Stewardship Supplier Collaboration https://www.avient.com/investors/governance 102–22 Composition of the highest governance body and its committees Avient 2024 Annual Report—Form 10-K Pages 14–15 & 64, 68 Corporate Board Governance Avient Board of Directors 102–23 Chair of the highest governance body Avient 2025 Proxy Statement—Page 16 102–24 Nominating and selecting the highest governance body Corporate Board Governance Avient 2024 Annual Report—Form 10-K Pages 14–15 Avient 2025 Proxy Statement—Page 16 https://www.avient.com/investors/governance 102–25 Conflicts of interest Corporate Board Governance Avient Code of Conduct https://www.avient.com/investors/governance 102–26 Role of highest governance body in setting purpose, values, and strategy Corporate Board Governance Avient 2024 Annual Report—Form 10-K Pages 14–15, 64 & 68 Avient 2025 Proxy Statement —Pages 28–31 https://www.avient.com/investors/governance 102–27 Collective knowledge of highest governance body Corporate Board Governance Avient 2025 Proxy Statement—Pages 8–9 102–28 Evaluating the highest governance body's performance Corporate Board Governance Avient 2025 Proxy Statement—Pages 32–36 https://www.avient.com/investors/governance Sustainability Report | 2024 54Contents | 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/sites/default/files/2025-03/380605_AVIENT_2024AR_full_250325.pdf https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement%20%28Filed%29.pdf https://www.avient.com/investors/governance https://www.avient.com/investors/governance https://www.avient.com/sites/default/files/2025-03/380605_AVIENT_2024AR_full_250325.pdf https://www.avient.com/investors/governance/board-directors https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement%20%28Filed%29.pdf https://www.avient.com/sites/default/files/2025-03/380605_AVIENT_2024AR_full_250325.pdf https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement%20%28Filed%29.pdf https://www.avient.com/investors/governance https://www.avient.com/company/policies-and-governance/code-conduct https://www.avient.com/investors/governance https://www.avient.com/sites/default/files/2025-03/380605_AVIENT_2024AR_full_250325.pdf https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement%20%28Filed%29.pdf https://www.avient.com/investors/governance https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement%20%28Filed%29.pdf https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement%20%28Filed%29.pdf https://www.avient.com/investors/governance GRI Standard Disclosure Title 2024 Report Disclosures General Disclosures Governance 102–29 Identifying and managing economic, environmental, and social impacts Corporate Board Governance Environmental Health & Safety https://www.avient.com/investors/governance 102–30 Effectiveness of risk management processes Corporate Board Governance Avient 2025 Proxy Statement —Pages 29–30 https://www.avient.com/investors/governance 102–31 Review of economic, environmental, and social topics Corporate Board Governance Avient 2025 Proxy Statement—Pages 29–30 https://www.avient.com/investors/governance 102–32 Highest governance body's role in sustainability reporting Corporate Board Governance Avient 2025 Proxy Statement —Pages 29–30 https://www.avient.com/investors/governance 102–33 Communicating critical concerns Corporate Board Governance Avient 2025 Proxy Statement —Page 29–30 & 32 Avient Code of Conduct https://www.avient.com/investors/governance 102–34 Nature and total number of critical concerns Avient 2024 Annual Report—Form 10-K Pages 54–55 102–35 Remuneration Policies Avient 2025 Proxy Statement—Pages 47–66 102–36 Process for determining remuneration Avient 2025 Proxy Statement—Pages 43–46 102–37 Stakeholders' involvement in remuneration Avient 2025 Proxy Statement—Pages 43–47 102–38 Annual total compensation ratio Avient 2025 Proxy Statement—Pages 71–72 Stakeholder Engagement 102–40 List of stakeholder groups Engaging with Our Stakeholders 102–41 Collective bargaining agreements Workforce Demographics 102–42 Identifying and selecting stakeholders Engaging with Our Stakeholders 102–43 Approach to stakeholder engagement Engaging with Our Stakeholders 102–44 Key topics and concerns raised Engaging with Our Stakeholders Reporting Practice 102–45 Entities included in the consolidated financial statements Avient 2024 Annual Report—Form 10-K Pages 2–3 We operate in two reportable segments: (1) Color, Additives and Inks and (2) Specialty Engineered Materials. 102–46 Defining report content and topic boundaries The information in this report applies to Avient and all owned facilities, joint ventures, and operating companies globally within the reporting period, unless otherwise stated.

ColorMatrix™ Liquid Color Concentrates achieved the optimal flowability of liquid white and liquid orange, ensuring consistent color through suitable mixing with other colorants

Color, Additives and Inks (CAI) Distribution Specialty Engineered Materials 1. The Governance and Corporate Responsibility Committee of the Board regularly reviews criteria for Board membership to ensure an appropriate mix of skills, experience, and diversity. Our Board also represents a balanced mix of fresh perspectives from our newer Directors and more seasoned perspectives from our longer tenured Directors.

ColorMatrix™ Liquid Color Concentrates achieved the optimal flowability of liquid white and liquid orange, ensuring consistent color through suitable mixing with other colorants

ColorMatrix™ Liquid Color Concentrates achieved the optimal flowability of liquid white and liquid orange, ensuring consistent color through suitable mixing with other colorants