Van Hulle Senior Vice President, President of Color, Additives and Inks (“CAI”) Michael A. Van Hulle, Senior Vice President, President of Global Color, Additives and Inks Craig M. Proxy Solicitation We are making this proxy solicitation and will bear the expense of preparing, printing and mailing this notice and proxy statement.

Business division Scope 1 emissions (metric ton CO2e) Global Color, Additives and Inks 4,930 Global Specialty Engineered Materials 3,176 Masterbatch 5,593 Avient Corporate 4,077 Avient Distribution 651 C-CE7.4/C-CH7.4/C-CO7.4/C-EU7.4/C-MM7.4/C-OG7.4/C- ST7.4/C-TO7.4/C-TS7.4 (C-CE7.4/C-CH7.4/C-CO7.4/C-EU7.4/C-MM7.4/C-OG7.4/C-ST7.4/C-TO7.4/C-TS7.4) Break down your organization’s total gross global Scope 1 emissions by sector production activity in metric tons CO2e. Business division Scope 2, location-based (metric tons CO2e) Scope 2, market-based (metric tons CO2e) Global Color, Additives and Inks 35,964 24,542 Global Specialty Engineered Materials 39,013 18,262 Masterbatch 54,474 44,360 Avient Corporate 4,795 388 Avient Distribution 714 25 C-CE7.7/C-CH7.7/C-CO7.7/C-MM7.7/C-OG7.7/C-ST7.7/C- TO7.7/C-TS7.7 (C-CE7.7/C-CH7.7/C-CO7.7/C-MM7.7/C-OG7.7/C-ST7.7/C-TO7.7/C-TS7.7) Break down your organization’s total gross global Scope 2 emissions by sector production activity in metric tons CO2e.

Color, Additives and Inks (CAI) Specialty Engineered Materials (SEM) 1. Connectors & Components Rapid growth in computing technology has increased demand for higher performing connectors, printed circuit boards, sockets and more. A majority of associates have full-time contracts. 102–9 Supply chain Avient 2022 Annual Report—Form 10-K Page 5 102–10 Significant changes to the organization and its supply chain Avient 2022 Annual Report—Form 10-K Page 18 102–11 Precautionary Principle or approach Avient 2022 Annual Report—Form 10-K Page 8–12 102–12 External initiatives About Us—Who We Are Page 12 People—Security, Becoming an Even Better Place to Work Page 23, Page 40 Products—Strategic Partnerships and Alliances Page 56 102–13 Membership of associations Strategic Partnerships and Alliances Page 56 Alliance to End Plastic Waste American Composites Manufacturers Association Association of Plastic Recyclers (APR) Operation Clean Sweep PET Container Recycling Europe (PetCore) Plastics Recyclers Europe (PRE) RecyClass Responsible Mica Initiative The Microfibre Consortium (TMC) UK Plastic Pact HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2022 89 https://www.avient.com/sites/default/files/2023-03/Avient%20Annual%20Report%202022.pdf https://www.avient.com/sites/default/files/2023-03/Avient%20Annual%20Report%202022.pdf https://www.avient.com/sites/default/files/2023-03/Avient%20Annual%20Report%202022.pdf https://www.avient.com/sites/default/files/2023-03/Avient%20Annual%20Report%202022.pdf https://www.avient.com/sites/default/files/2023-03/Avient%20Annual%20Report%202022.pdf https://www.avient.com/sites/default/files/2023-03/Avient%20Annual%20Report%202022.pdf https://www.avient.com/sites/default/files/2023-03/Avient%20Annual%20Report%202022.pdf https://www.avient.com/sites/default/files/2023-03/Avient%20Annual%20Report%202022.pdf https://www.avient.com/sites/default/files/2023-03/Avient%20Annual%20Report%202022.pdf GRI Standard Disclosure Title Avient Disclosures General Disclosures Strategy 102–14 Statement from senior decision-maker 2022 Sustainability Report—Message from the CEO Page 3 102–15 Key impacts, risks, and opportunities Avient 2022 Annual Report—Form 10-K Page 7–12 Products—Innovation: Formulating for the Future Page 42 Ethics & Integrity 102–16 Values, principles, standards, and norms of behavior About Us—Who We Are Page 12 Avient 2022 Annual Report—Vision and Strategy 102–17 Mechanisms for advice and concerns about ethics Performance—Ethics Hotline and Reporting Page 78 Governance 102–18 Governance structure Performance—Board of Directors Governance Page 80 People—Management Approach: EH&S Page 19 Avient 2022 Annual Report—Form 10-K Pages 13–14 & 69 Avient 2023 Proxy Statement—Pages 14–16 https://www.avient.com/investors/governance 102–20 Executive-level responsibility for economic, environmental, and social topics Performance—Board of Directors Governance Page 80 People—Management Approach: EH&S Page 19 People—Management Approach: Training and Development Page 24 People—Management Approach: Diversity & Inclusion Page 27 Products—Management Approach: Product Stewardship Page 51 Products—Management Approach: Supplier Collaboration Page 54 https://www.avient.com/investors/governance 102–22 Composition of the highest governance body and its committees Avient 2022 Annual Report—Form 10-K Pages 13–14, & 69 Performance—Board of Directors Governance Page 80–81 102–23 Chair of the highest governance body Avient 2023 Proxy Statement—Page 22 102–24 Nominating and selecting the highest governance body Performance—Board of Directors Governance Page 80–81 Avient 2022 Annual Report—Form 10-K Pages 13–14 Avient 2023 Proxy Statement Page 17 https://www.avient.com/investors/governance 102–25 Conflicts of interest Performance—Board of Directors Governance Page 80–81 Avient Code of Conduct https://www.avient.com/investors/governance 102–26 Role of highest governance body in setting purpose, values, and strategy Performance—Board of Directors Governance Page 80–81 Avient 2022 Annual Report—Form 10-K Pages 13–14 & 69 Avient 2023 Proxy Statement Pages 46–48 https://www.avient.com/investors/governance 102–27 Collective knowledge of highest governance body Performance—Board of Directors Governance Page 80–81 Avient 2023 Proxy Statement Pages 14–16 102–28 Evaluating the highest governance body's performance Performance—Board of Directors Governance Page 80–81 Avient 2023 Proxy Statement Pages 49–53 https://www.avient.com/investors/governance HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2022 90 https://www.avient.com/sites/default/files/2023-03/Avient%20Annual%20Report%202022.pdf https://www.avient.com/sites/default/files/2023-03/Avient%20Annual%20Report%202022.pdf https://www.avient.com/sites/default/files/2023-03/Avient%20Annual%20Report%202022.pdf https://www.avient.com/sites/default/files/2023-03/2023%20Avient%20Bookmarked%20Proxy%20Statement%20-%20FINAL.pdf https://www.avient.com/investors/governance https://www.avient.com/investors/governance https://www.avient.com/sites/default/files/2023-03/Avient%20Annual%20Report%202022.pdf https://www.avient.com/sites/default/files/2023-03/2023%20Avient%20Bookmarked%20Proxy%20Statement%20-%20FINAL.pdf https://www.avient.com/sites/default/files/2023-03/Avient%20Annual%20Report%202022.pdf https://www.avient.com/sites/default/files/2023-03/2023%20Avient%20Bookmarked%20Proxy%20Statement%20-%20FINAL.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/2023-03/Avient%20Annual%20Report%202022.pdf https://www.avient.com/sites/default/files/2023-03/2023%20Avient%20Bookmarked%20Proxy%20Statement%20-%20FINAL.pdf https://www.avient.com/investors/governance https://www.avient.com/sites/default/files/2023-03/2023%20Avient%20Bookmarked%20Proxy%20Statement%20-%20FINAL.pdf https://www.avient.com/sites/default/files/2023-03/2023%20Avient%20Bookmarked%20Proxy%20Statement%20-%20FINAL.pdf https://www.avient.com/investors/governance GRI Standard Disclosure Title Avient Disclosures General Disclosures Governance 102–29 Identifying and managing economic, environmental, and social impacts Performance—Board of Directors Governance Page 80–81 People—Management Approach: EH&S Page 19 https://www.avient.com/investors/governance 102–30 Effectiveness of risk management processes Performance—Enterprise Risk Management (ERM); Board of Directors Governance; Pages 79, 80 Avient 2023 Proxy Statement Pages 46–47 https://www.avient.com/investors/governance 102–31 Review of economic, environmental, and social topics Performance—Enterprise Risk Management (ERM); Board of Directors Governance; Pages 79, 80 Avient 2023 Proxy Statement Page 46–47, 51 https://www.avient.com/investors/governance 102–32 Highest governance body's role in sustainability reporting Message from the Governance and Corporate Responsibility Committee Page 4 Performance—Board of Directors Governance Page 80–81 Avient 2023 Proxy Statement Page 46–47, 51 https://www.avient.com/investors/governance 102–33 Communicating critical concerns Performance—Board of Directors Governance Page 80–81 Avient 2023 Proxy Statement Page 46–48, 51 Avient Code of Conduct https://www.avient.com/investors/governance 102–34 Nature and total number of critical concerns Avient 2022 Annual Report—Form 10-K Pages 56–57 102–35 Remuneration Policies Avient 2023 Proxy Statement Pages 66–72, 75–84 102–36 Process for determining remuneration Avient 2023 Proxy Statement Pages 66–72 102–37 Stakeholders' involvement in remuneration Avient 2023 Proxy Statement Pages 66–67 102–38 Annual total compensation ratio Avient 2023 Proxy Statement Page 85 Stakeholder Engagement 102–40 List of stakeholder groups About Us—Engaging with Our Stakeholders Page 9 102–41 Collective bargaining agreements Workforce Demographics—Employee Representation Page 31 102–42 Identifying and selecting stakeholders About Us—Engaging with Our Stakeholders Page 9 102–43 Approach to stakeholder engagement About Us—Engaging with Our Stakeholders Page 9 102–44 Key topics and concerns raised About Us—Engaging with Our Stakeholders Page 9 Reporting Practice 102–45 Entities included in the consolidated financial statements Avient 2022 Annual Report—Form 10-K Page 2–3 We operate in three reportable segments: (1) Color, Additives and Inks; (2) Specialty Engineered Materials; and (3) Distribution. 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.

Color, Additives and Inks (CAI) Specialty Engineered Materials (SEM) 1. A majority of associates have full-time contracts. 102–9 Supply chain Avient 2023 Annual Report—Form 10-K Page 5 102–10 Significant changes to the organization and its supply chain Avient 2023 Annual Report—Form 10-K Page 18 102–11 Precautionary Principle or approach Avient 2023 Annual Report—Form 10-K Page 8–13 102–12 External initiatives About Us—Who We Are Page 11 People—Security, Becoming an Even Better Place to Work Page 22, Page 36 Products—Strategic Partnerships and Alliances Page 50 102–13 Membership of associations Strategic Partnerships and Alliances Page 50 Strategy 102–14 Statement from senior decision-maker 2023 Sustainability Report—Message from the CEO Page 3 102–15 Key impacts, risks, and opportunities Avient 2023 Annual Report—Form 10-K Page 8–13 Innovating for a Sustainable Future Page 38 Ethics & Integrity 102–16 Values, principles, standards, and norms of behavior About Us—Who We Are Page 11 Avient 2023 Annual Report—Our Vision; Our Culture; Our Sustainability Guiding Principle and Four Cornerstones 102–17 Mechanisms for advice and concerns about ethics Performance—Ethics Hotline and Reporting Page 69 HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 80 https://www.avient.com/products https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf GRI Standard Disclosure Title Avient Disclosures General Disclosures Governance 102–18 Governance structure Performance—Board of Directors Governance Page 71 People—Environmental, Health & Safety Page 18 Avient 2023 Annual Report—Form 10-K Pages 14–15 & 68 Avient 2024 Proxy Statement—Pages 14–15 https://www.avient.com/investors/governance 102–20 Executive-level responsibility for economic, environmental, and social topics Performance—Board of Directors Governance Page 71 People—Environmental, Health & Safety Page 18 People—Training and Development Page 23 People—Diversity & Inclusion Page 24 Products—Product Stewardship Page 45 Products—Supplier Collaboration Page 48 https://www.avient.com/investors/governance 102–22 Composition of the highest governance body and its committees Avient 2023 Annual Report—Form 10-K Pages 13–14, & 65 Performance—Board of Directors Governance Page 71 102–23 Chair of the highest governance body Avient 2024 Proxy Statement—Page 19 102–24 Nominating and selecting the highest governance body Performance—Board of Directors Governance Page 71 Avient 2023 Annual Report—Form 10-K Pages 13–14 Avient 2024 Proxy Statement—Page 16 https://www.avient.com/investors/governance 102–25 Conflicts of interest Performance—Board of Directors Governance Page 71 Avient Code of Conduct https://www.avient.com/investors/governance 102–26 Role of highest governance body in setting purpose, values, and strategy Performance—Board of Directors Governance Page 71 Avient 2023 Annual Report—Form 10-K Pages 13–14 & 65 Avient 2024 Proxy Statement—Pages 29–31 https://www.avient.com/investors/governance 102–27 Collective knowledge of highest governance body Performance—Board of Directors Governance Page 71 Avient 2024 Proxy Statement—Pages 14–16 102–28 Evaluating the highest governance body's performance Performance—Board of Directors Governance Page 71 Avient 2024 Proxy Statement—Pages 32–36 https://www.avient.com/investors/governance 102–29 Identifying and managing economic, environmental, and social impacts Performance—Board of Directors Governance Page 71 People—Environmental, Health & Safety Page 18 https://www.avient.com/investors/governance 102–30 Effectiveness of risk management processes Performance—Enterprise Risk Management; Board of Directors Governance; Pages 70,71 Avient 2024 Proxy Statement—Pages 30–31 https://www.avient.com/investors/governance 102–31 Review of economic, environmental, and social topics Performance—Enterprise Risk Management; Board of Directors Governance; Pages 70,71 Avient 2024 Proxy Statement—Pages 30–31, 34 https://www.avient.com/investors/governance HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 81 https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement_March.pdf https://www.avient.com/investors/governance https://www.avient.com/investors/governance https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement_March.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement_March.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/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement_March.pdf https://www.avient.com/investors/governance https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement_March.pdf https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement_March.pdf https://www.avient.com/investors/governance https://www.avient.com/investors/governance https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement_March.pdf https://www.avient.com/investors/governance https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement_March.pdf https://www.avient.com/investors/governance GRI Standard Disclosure Title Avient Disclosures General Disclosures Governance 102–32 Highest governance body's role in sustainability reporting Message from the Governance and Corporate Responsibility Committee Page 4 Performance—Enterprise Risk Management; Board of Directors Governance; Pages 70,71 Avient 2024 Proxy Statement—Pages 30–31, 34 https://www.avient.com/investors/governance 102–33 Communicating critical concerns Performance—Enterprise Risk Management; Board of Directors Governance; Pages 70,71 Avient 2024 Proxy Statement—Pages 30–31, 34 Avient Code of Conduct https://www.avient.com/investors/governance 102–34 Nature and total number of critical concerns Avient 2023 Annual Report—Form 10-K Pages 54–55 102–35 Remuneration Policies Avient 2024 Proxy Statement—Pages 49–57, 59–70 102–36 Process for determining remuneration Avient 2024 Proxy Statement—Pages 49–54 102–37 Stakeholders' involvement in remuneration Avient 2024 Proxy Statement—Pages 49–50 102–38 Annual total compensation ratio Avient 2024 Proxy Statement—Page 71 Stakeholder Engagement 102–40 List of stakeholder groups About Us—Engaging with Our Stakeholders Page 9 102–41 Collective bargaining agreements Workforce Demographics—Employee Representation Page 28 102–42 Identifying and selecting stakeholders About Us—Engaging with Our Stakeholders Page 9 102–43 Approach to stakeholder engagement About Us—Engaging with Our Stakeholders Page 9 102–44 Key topics and concerns raised About Us—Engaging with Our Stakeholders Page 9 Reporting Practice 102–45 Entities included in the consolidated financial statements Avient 2023 Annual Report—Form 10-K Pages 2–3 We operate in three 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.

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. 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.

Business division Scope 1 emissions (metric ton CO2e) Global Color, Additives and Inks 5,136 Avient CDP Climate Change Questionnaire 2022 Friday, July 29, 2022 72 Global Specialty Engineered Materials 3,088 Masterbatch 5,329 Avient Corporate 3,930 Avient Distribution 759 C-CE7.4/C-CH7.4/C-CO7.4/C-EU7.4/C-MM7.4/C-OG7.4/C- ST7.4/C-TO7.4/C-TS7.4 (C-CE7.4/C-CH7.4/C-CO7.4/C-EU7.4/C-MM7.4/C-OG7.4/C-ST7.4/C-TO7.4/C-TS7.4) Break down your organization’s total gross global Scope 1 emissions by sector production activity in metric tons CO2e. Business division Scope 2, location-based (metric tons CO2e) Scope 2, market-based (metric tons CO2e) Global Color, Additives and Inks 35,150 21,674 Global Specialty Engineered Materials 37,555 17,253 Avient CDP Climate Change Questionnaire 2022 Friday, July 29, 2022 74 Masterbatch 56,313 46,632 Avient Corporate 4,544 333 Avient Distribution 681 0 C-CE7.7/C-CH7.7/C-CO7.7/C-MM7.7/C-OG7.7/C-ST7.7/C- TO7.7/C-TS7.7 (C-CE7.7/C-CH7.7/C-CO7.7/C-MM7.7/C-OG7.7/C-ST7.7/C-TO7.7/C-TS7.7) Break down your organization’s total gross global Scope 2 emissions by sector production activity in metric tons CO2e.

Color, Additives and Inks (CAI) Specialty Engineered Materials (SEM) 1. A majority of associates have full-time contracts. 102–9 Supply chain Avient 2023 Annual Report—Form 10-K Page 5 102–10 Significant changes to the organization and its supply chain Avient 2023 Annual Report—Form 10-K Page 18 102–11 Precautionary Principle or approach Avient 2023 Annual Report—Form 10-K Page 8–13 102–12 External initiatives About Us—Who We Are Page 11 People—Security, Becoming an Even Better Place to Work Page 22, Page 36 Products—Strategic Partnerships and Alliances Page 50 102–13 Membership of associations Strategic Partnerships and Alliances Page 50 Strategy 102–14 Statement from senior decision-maker 2023 Sustainability Report—Message from the CEO Page 3 102–15 Key impacts, risks, and opportunities Avient 2023 Annual Report—Form 10-K Page 8–13 Innovating for a Sustainable Future Page 38 Ethics & Integrity 102–16 Values, principles, standards, and norms of behavior About Us—Who We Are Page 11 Avient 2023 Annual Report—Our Vision; Our Culture; Our Sustainability Guiding Principle and Four Cornerstones 102–17 Mechanisms for advice and concerns about ethics Performance—Ethics Hotline and Reporting Page 69 HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 80 https://www.avient.com/products https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf GRI Standard Disclosure Title Avient Disclosures General Disclosures Governance 102–18 Governance structure Performance—Board of Directors Governance Page 71 People—Environmental, Health & Safety Page 18 Avient 2023 Annual Report—Form 10-K Pages 14–15 & 68 Avient 2024 Proxy Statement—Pages 14–15 https://www.avient.com/investors/governance 102–20 Executive-level responsibility for economic, environmental, and social topics Performance—Board of Directors Governance Page 71 People—Environmental, Health & Safety Page 18 People—Training and Development Page 23 People—Diversity & Inclusion Page 24 Products—Product Stewardship Page 45 Products—Supplier Collaboration Page 48 https://www.avient.com/investors/governance 102–22 Composition of the highest governance body and its committees Avient 2023 Annual Report—Form 10-K Pages 13–14, & 65 Performance—Board of Directors Governance Page 71 102–23 Chair of the highest governance body Avient 2024 Proxy Statement—Page 19 102–24 Nominating and selecting the highest governance body Performance—Board of Directors Governance Page 71 Avient 2023 Annual Report—Form 10-K Pages 13–14 Avient 2024 Proxy Statement—Page 16 https://www.avient.com/investors/governance 102–25 Conflicts of interest Performance—Board of Directors Governance Page 71 Avient Code of Conduct https://www.avient.com/investors/governance 102–26 Role of highest governance body in setting purpose, values, and strategy Performance—Board of Directors Governance Page 71 Avient 2023 Annual Report—Form 10-K Pages 13–14 & 65 Avient 2024 Proxy Statement—Pages 29–31 https://www.avient.com/investors/governance 102–27 Collective knowledge of highest governance body Performance—Board of Directors Governance Page 71 Avient 2024 Proxy Statement—Pages 14–16 102–28 Evaluating the highest governance body's performance Performance—Board of Directors Governance Page 71 Avient 2024 Proxy Statement—Pages 32–36 https://www.avient.com/investors/governance 102–29 Identifying and managing economic, environmental, and social impacts Performance—Board of Directors Governance Page 71 People—Environmental, Health & Safety Page 18 https://www.avient.com/investors/governance 102–30 Effectiveness of risk management processes Performance—Enterprise Risk Management; Board of Directors Governance; Pages 70,71 Avient 2024 Proxy Statement—Pages 30–31 https://www.avient.com/investors/governance 102–31 Review of economic, environmental, and social topics Performance—Enterprise Risk Management; Board of Directors Governance; Pages 70,71 Avient 2024 Proxy Statement—Pages 30–31, 34 https://www.avient.com/investors/governance HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 81 https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement_March.pdf https://www.avient.com/investors/governance https://www.avient.com/investors/governance https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement_March.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement_March.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/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement_March.pdf https://www.avient.com/investors/governance https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement_March.pdf https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement_March.pdf https://www.avient.com/investors/governance https://www.avient.com/investors/governance https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement_March.pdf https://www.avient.com/investors/governance https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement_March.pdf https://www.avient.com/investors/governance GRI Standard Disclosure Title Avient Disclosures General Disclosures Governance 102–32 Highest governance body's role in sustainability reporting Message from the Governance and Corporate Responsibility Committee Page 4 Performance—Enterprise Risk Management; Board of Directors Governance; Pages 70,71 Avient 2024 Proxy Statement—Pages 30–31, 34 https://www.avient.com/investors/governance 102–33 Communicating critical concerns Performance—Enterprise Risk Management; Board of Directors Governance; Pages 70,71 Avient 2024 Proxy Statement—Pages 30–31, 34 Avient Code of Conduct https://www.avient.com/investors/governance 102–34 Nature and total number of critical concerns Avient 2023 Annual Report—Form 10-K Pages 54–55 102–35 Remuneration Policies Avient 2024 Proxy Statement—Pages 49–57, 59–70 102–36 Process for determining remuneration Avient 2024 Proxy Statement—Pages 49–54 102–37 Stakeholders' involvement in remuneration Avient 2024 Proxy Statement—Pages 49–50 102–38 Annual total compensation ratio Avient 2024 Proxy Statement—Page 71 Stakeholder Engagement 102–40 List of stakeholder groups About Us—Engaging with Our Stakeholders Page 9 102–41 Collective bargaining agreements Workforce Demographics—Employee Representation Page 28 102–42 Identifying and selecting stakeholders About Us—Engaging with Our Stakeholders Page 9 102–43 Approach to stakeholder engagement About Us—Engaging with Our Stakeholders Page 9 102–44 Key topics and concerns raised About Us—Engaging with Our Stakeholders Page 9 Reporting Practice 102–45 Entities included in the consolidated financial statements Avient 2023 Annual Report—Form 10-K Pages 2–3 We operate in three 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.

Color, Additives and Inks (CAI) Specialty Engineered Materials (SEM) 1. A majority of associates have full-time contracts. 102–9 Supply chain Avient 2023 Annual Report—Form 10-K Page 5 102–10 Significant changes to the organization and its supply chain Avient 2023 Annual Report—Form 10-K Page 18 102–11 Precautionary Principle or approach Avient 2023 Annual Report—Form 10-K Page 8–13 102–12 External initiatives About Us—Who We Are Page 11 People—Security, Becoming an Even Better Place to Work Page 22, Page 36 Products—Strategic Partnerships and Alliances Page 50 102–13 Membership of associations Strategic Partnerships and Alliances Page 50 Strategy 102–14 Statement from senior decision-maker 2023 Sustainability Report—Message from the CEO Page 3 102–15 Key impacts, risks, and opportunities Avient 2023 Annual Report—Form 10-K Page 8–13 Innovating for a Sustainable Future Page 38 Ethics & Integrity 102–16 Values, principles, standards, and norms of behavior About Us—Who We Are Page 11 Avient 2023 Annual Report—Our Vision; Our Culture; Our Sustainability Guiding Principle and Four Cornerstones 102–17 Mechanisms for advice and concerns about ethics Performance—Ethics Hotline and Reporting Page 69 HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 80 https://www.avient.com/products https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf GRI Standard Disclosure Title Avient Disclosures General Disclosures Governance 102–18 Governance structure Performance—Board of Directors Governance Page 71 People—Environmental, Health & Safety Page 18 Avient 2023 Annual Report—Form 10-K Pages 14–15 & 68 Avient 2024 Proxy Statement—Pages 14–15 https://www.avient.com/investors/governance 102–20 Executive-level responsibility for economic, environmental, and social topics Performance—Board of Directors Governance Page 71 People—Environmental, Health & Safety Page 18 People—Training and Development Page 23 People—Diversity & Inclusion Page 24 Products—Product Stewardship Page 45 Products—Supplier Collaboration Page 48 https://www.avient.com/investors/governance 102–22 Composition of the highest governance body and its committees Avient 2023 Annual Report—Form 10-K Pages 13–14, & 65 Performance—Board of Directors Governance Page 71 102–23 Chair of the highest governance body Avient 2024 Proxy Statement—Page 19 102–24 Nominating and selecting the highest governance body Performance—Board of Directors Governance Page 71 Avient 2023 Annual Report—Form 10-K Pages 13–14 Avient 2024 Proxy Statement—Page 16 https://www.avient.com/investors/governance 102–25 Conflicts of interest Performance—Board of Directors Governance Page 71 Avient Code of Conduct https://www.avient.com/investors/governance 102–26 Role of highest governance body in setting purpose, values, and strategy Performance—Board of Directors Governance Page 71 Avient 2023 Annual Report—Form 10-K Pages 13–14 & 65 Avient 2024 Proxy Statement—Pages 29–31 https://www.avient.com/investors/governance 102–27 Collective knowledge of highest governance body Performance—Board of Directors Governance Page 71 Avient 2024 Proxy Statement—Pages 14–16 102–28 Evaluating the highest governance body's performance Performance—Board of Directors Governance Page 71 Avient 2024 Proxy Statement—Pages 32–36 https://www.avient.com/investors/governance 102–29 Identifying and managing economic, environmental, and social impacts Performance—Board of Directors Governance Page 71 People—Environmental, Health & Safety Page 18 https://www.avient.com/investors/governance 102–30 Effectiveness of risk management processes Performance—Enterprise Risk Management; Board of Directors Governance; Pages 70,71 Avient 2024 Proxy Statement—Pages 30–31 https://www.avient.com/investors/governance 102–31 Review of economic, environmental, and social topics Performance—Enterprise Risk Management; Board of Directors Governance; Pages 70,71 Avient 2024 Proxy Statement—Pages 30–31, 34 https://www.avient.com/investors/governance HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 81 https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement_March.pdf https://www.avient.com/investors/governance https://www.avient.com/investors/governance https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement_March.pdf https://www.avient.com/sites/default/files/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement_March.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/2024-03/AS-FILED%20EF20024640%20Avient%20Corp%20ARS.pdf https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement_March.pdf https://www.avient.com/investors/governance https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement_March.pdf https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement_March.pdf https://www.avient.com/investors/governance https://www.avient.com/investors/governance https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement_March.pdf https://www.avient.com/investors/governance https://www.avient.com/sites/default/files/2024-03/2024%20Proxy%20Statement_March.pdf https://www.avient.com/investors/governance GRI Standard Disclosure Title Avient Disclosures General Disclosures Governance 102–32 Highest governance body's role in sustainability reporting Message from the Governance and Corporate Responsibility Committee Page 4 Performance—Enterprise Risk Management; Board of Directors Governance; Pages 70,71 Avient 2024 Proxy Statement—Pages 30–31, 34 https://www.avient.com/investors/governance 102–33 Communicating critical concerns Performance—Enterprise Risk Management; Board of Directors Governance; Pages 70,71 Avient 2024 Proxy Statement—Pages 30–31, 34 Avient Code of Conduct https://www.avient.com/investors/governance 102–34 Nature and total number of critical concerns Avient 2023 Annual Report—Form 10-K Pages 54–55 102–35 Remuneration Policies Avient 2024 Proxy Statement—Pages 49–57, 59–70 102–36 Process for determining remuneration Avient 2024 Proxy Statement—Pages 49–54 102–37 Stakeholders' involvement in remuneration Avient 2024 Proxy Statement—Pages 49–50 102–38 Annual total compensation ratio Avient 2024 Proxy Statement—Page 71 Stakeholder Engagement 102–40 List of stakeholder groups About Us—Engaging with Our Stakeholders Page 9 102–41 Collective bargaining agreements Workforce Demographics—Employee Representation Page 28 102–42 Identifying and selecting stakeholders About Us—Engaging with Our Stakeholders Page 9 102–43 Approach to stakeholder engagement About Us—Engaging with Our Stakeholders Page 9 102–44 Key topics and concerns raised About Us—Engaging with Our Stakeholders Page 9 Reporting Practice 102–45 Entities included in the consolidated financial statements Avient 2023 Annual Report—Form 10-K Pages 2–3 We operate in three 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.

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Color, Additives and Inks (CAI) Distribution Specialty Engineered Materials 1. A majority of our associates have full time contracts. 102–9 Supply chain Avient 2021 Annual Report—Form 10-K Page 5 102–10 Significant changes to the organization and its supply chain Avient 2021 Annual Report—Form 10-K Page 18 102–11 Precautionary Principle or approach Avient 2021 Annual Report—Form 10-K Pages 8–12 102–12 External initiatives About Avient—Who We Are People—Security; A Great Place to Work Products—Strategic Partnerships and Alliances 102–13 Membership of associations United Nations Global Compact American Chemistry Council Alliance To End Plastic Waste Operation Clean Sweep UK Plastics Pact PetCore Europe Association of Plastic Recyclers (APR) Plastics Recyclers Europe (PRE) Responsible Mica Initiative (RMI) Microfibre Consortium (TMC) Strategy 102–14 Statement from senior decision-maker Message from the CEO 102–15 Key impacts, risks, and opportunities Products—Innovation: The Lifeblood of a Specialty Organization Avient 2021 Annual Report—Form 10-K Pages 8–12 Ethics & Integrity 102–16 Values, principles, standards, and norms of behavior About Us—Who We Are Avient 2021 Annual Report—Creating a World-Class, Sustainable; Vision and Strategy 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 89 https://www.avient.com/sites/default/files/2022-03/Avient%202021%20Annual%20Report.pdf https://www.avient.com/sites/default/files/2022-03/Avient%202021%20Annual%20Report.pdf https://www.avient.com/sites/default/files/2022-03/Avient%202021%20Annual%20Report.pdf https://www.avient.com/sites/default/files/2022-03/Avient%202021%20Annual%20Report.pdf https://www.avient.com/sites/default/files/2022-03/Avient%202021%20Annual%20Report.pdf https://www.avient.com/sites/default/files/2022-03/Avient%202021%20Annual%20Report.pdf https://www.avient.com/sites/default/files/2022-03/Avient%202021%20Annual%20Report.pdf https://www.avient.com/sites/default/files/2022-03/Avient%202021%20Annual%20Report.pdf https://www.avient.com/sites/default/files/2022-03/Avient%202021%20Annual%20Report.pdf https://www.unglobalcompact.org https://www.americanchemistry.com https://endplasticwaste.org https://www.opcleansweep.org https://www.newplasticseconomy.org/projects/plastics-pact https://www.petcore-europe.org https://plasticsrecycling.org https://www.plasticsrecyclers.eu/who-we-are https://responsible-mica-initiative.com https://www.microfibreconsortium.com https://www.avient.com/sites/default/files/2022-03/Avient%202021%20Annual%20Report.pdf https://www.avient.com/sites/default/files/2022-03/Avient%202021%20Annual%20Report.pdf GRI Standard Disclosure Title Avient Disclosures General Disclosures Ethics & Integrity 102–17 Mechanisms for advice and concerns about ethics Performance—Ethics Hotline and Reporting Governance 102–18 Governance structure Performance—Board of Directors Governance People—Management Approach: EH&S Avient 2021 Annual Report—Form 10-K Pages 14–15 & 70 and Proxy Statement Pages 13–15 https://www.avient.com/investors/governance 102–20 Executive-level responsibility for economic, environmental, and social topics Performance—Board of Directors Governance People—Management Approach: EH&S People—Management Approach: Training and Development People—Management Approach: Diversity & Inclusion Products—Management Approach: Product Stewardship Products—Management Approach: Supplier Collaboration https://www.avient.com/investors/governance 102–22 Composition of the highest governance body and its committees Performance—Board of Directors Governance Avient 2021 Annual Report—Form 10-K Pages 14–15 & 70 Avient Governance—Board of Directors 102–23 Chair of the highest governance body Avient 2022 Proxy Statement Pages 21, 29 102–24 Nominating and selecting the highest governance body Performance—Board of Directors Governance Avient 2021 Annual Report—Form 10-K Pages 14–15 & 70 and Proxy Statement Pages 30–31 https://www.avient.com/investors/governance 102–25 Conflicts of interest Performance—Board of Directors Governance Code of Conduct https://www.avient.com/investors/governance 102–26 Role of highest governance body in setting purpose, values, and strategy Performance—Board of Directors Governance Avient 2021 Annual Report—Form 10-K Pages 14–15 & 70 and Proxy Statement Pages 30–31 https://www.avient.com/investors/governance 102–27 Collective knowledge of highest governance body Performance—Board of Directors Governance Avient 2022 Proxy Statement Pages 13–15 102–28 Evaluating the highest governance body's performance Performance—Board of Directors Governance Avient 2022 Proxy Statement Pages 32, 34 https://www.avient.com/investors/governance 102–29 Identifying and managing economic, environmental, and social impacts Performance—Board of Directors Governance People—Management Approach: EH&S https://www.avient.com/investors/governance 102–30 Effectiveness of risk management processes Performance—Board of Directors Governance; Enterprise Risk Management (ERM) Avient 2022 Proxy Statement Pages 29–30 https://www.avient.com/investors/governance 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 90 https://www.avient.com/sites/default/files/2022-03/Avient%202021%20Annual%20Report.pdf https://www.avient.com/sites/default/files/2022-03/Avient%202022%20Proxy%20Statement.pdf https://www.avient.com/investors/governance https://www.avient.com/investors/governance https://www.avient.com/sites/default/files/2022-03/Avient%202021%20Annual%20Report.pdf https://www.avient.com/investors/governance https://www.avient.com/sites/default/files/2022-03/Avient%202022%20Proxy%20Statement.pdf https://www.avient.com/sites/default/files/2022-03/Avient%202021%20Annual%20Report.pdf https://www.avient.com/sites/default/files/2022-03/Avient%202022%20Proxy%20Statement.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/2022-03/Avient%202021%20Annual%20Report.pdf https://www.avient.com/sites/default/files/2022-03/Avient%202022%20Proxy%20Statement.pdf https://www.avient.com/investors/governance https://www.avient.com/sites/default/files/2022-03/Avient%202022%20Proxy%20Statement.pdf https://www.avient.com/sites/default/files/2022-03/Avient%202022%20Proxy%20Statement.pdf https://www.avient.com/investors/governance https://www.avient.com/investors/governance https://www.avient.com/sites/default/files/2022-03/Avient%202022%20Proxy%20Statement.pdf https://www.avient.com/investors/governance GRI Standard Disclosure Title Avient Disclosures General Disclosures Governance 102–31 Review of economic, environmental, and social topics Performance—Board of Directors Governance; Enterprise Risk Management (ERM) Avient 2022 Proxy Statement Pages 30–31, 34 https://www.avient.com/investors/governance 102–32 Highest governance body's role in sustainability reporting Message from the Governance and Corporate Responsibility Committee Performance—Board of Directors Governance Avient 2022 Proxy Statement Pages 30–31, 34 https://www.avient.com/investors/governance 102–33 Communicating critical concerns Performance—Board of Directors Governance Avient 2022 Proxy Statement Pages 30–32, 34 Code of Conduct https://www.avient.com/investors/governance 102–34 Nature and total number of critical concerns Avient 2021 Annual Report—Form 10-K Pages 56–57 102–35 Renumeration Policies Avient 2022 Proxy Statement Pages 33–39, 49–58 102–36 Process for determining renumeration Avient 2022 Proxy Statement Pages 33–39 102–37 Stakeholders' involvement in renumeration Avient 2022 Proxy Statement Page 33–34 102–38 Annual total compensation ratio Avient 2022 Proxy Statement Page 70 Stakeholder Engagement 102–40 List of stakeholder groups Engaging with Stakeholders 102–41 Collective bargaining agreements People—Workforce Demographics Employee Representation 102–42 Identifying and selecting stakeholders Engaging with Stakeholders 102–43 Approach to stakeholder engagement Engaging with Stakeholders 102–44 Key topics and cocnerns raised Engaging with Stakeholders Reporting Practice 102–45 Entities included in the consolidated financial statements Avient 2021 Annual Report—Form 10-K Page 3 We operate in three reportable segments: (1) Color, Additives and Inks; (2) Specialty Engineered Materials; and (3) Distribution. 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.