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A majority of our associates have full time contracts. 102–9 Supply chain Products—Management Approach: Supplier Collaboration/Supplier Evaluation Avient 2020 Annual Report—Form 10-K Page 4 102–10 Significant changes to the organization and its supply chain About Us—Better Together: PolyOne and Clariant Masterbatch Avient 2020 Annual Report—Form 10-K Pages 2 & 19–20 102–11 Precautionar y Principle or approach About Us—Who We Are Avient 2020 Annual Report—Form 10-K Pages 9–13 102–12 External initiatives About Avient—Who We Are People—Security; A Great Place to Work Products—Management Approach: Product Stewardship; Strategic Partnerships and Alliances Planet— Eliminating Plastic Waste 102–13 Membership of associations United Nations Global Compact American Chemistry Council Plastics Industry Association 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 Avient 2020 Annual Report—Letter To Our Shareholders GRI Standards Content Index HOME | Contents | Message from the CEO | Who We Are | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2020 87 http://newsletter.avient.com/IHDP/2020%20annual%20report/viewer/desktop/#page/1 http://newsletter.avient.com/IHDP/2020%20annual%20report/viewer/desktop/#page/1 http://newsletter.avient.com/IHDP/2020%20annual%20report/viewer/desktop/#page/1 http://newsletter.avient.com/IHDP/2020%20annual%20report/viewer/desktop/#page/1 http://newsletter.avient.com/IHDP/2020%20annual%20report/viewer/desktop/#page/1 http://newsletter.avient.com/IHDP/2020%20annual%20report/viewer/desktop/#page/1 http://newsletter.avient.com/IHDP/2020%20annual%20report/viewer/desktop/#page/1 http://newsletter.avient.com/IHDP/2020%20annual%20report/viewer/desktop/#page/1 https://www.unglobalcompact.org https://www.americanchemistry.com https://www.plasticsindustry.org 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 http://newsletter.avient.com/IHDP/2020%20annual%20report/viewer/desktop/#page/1 GRI Standards Content Index GRI Standard Disclosure Title Avient Disclosures General Disclosures Strategy 102–15 Key impacts, risks, and opportunities Products—Innovation: The Lifeblood of a Specialty Organization Performance—Enterprise Risk Management (ERM) Avient 2020 Annual Report—Form 10-K Pages 9–13 Ethics & Integrity 102–16 Values, principles, standards, and norms of behavior About Us—Who We Are Performance—The Highest Ethical Standards Avient 2020 Annual Report—Creating a World-Class, Sustainable; Vision and Strategy 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 2020 Annual Report—Form 10-K Pages 15–16 & 70 and Proxy Statement Pages 23–28 https://www.avient.com/investors/governance 102–20 Executive-level responsibility for economic, environmental, and social topics Message from the Governance and Corporate Responsibility Committee Performance—Board of Directors Governance Avient 2020 Annual Report—Form 10-K Pages 15–16 & 70 and Proxy Statement Page 24 https://www.avient.com/investors/governance 102–22 Composition of the highest governance body and its committees Message from the Governance and Corporate Responsibility Committee Performance—Board of Directors Governance Avient 2020 Annual Report—Form 10-K Pages 15–16 & 70 and Proxy Statement Pages 23–28 https://www.avient.com/investors/governance 102–23 Chair of the highest governance body Message from the Governance and Corporate Responsibility Committee Performance—Board of Directors Governance Avient 2020 Annual Report—Form 10-K Pages 15–16 & 70 and Proxy Statement Pages 23–24 https://www.avient.com/investors/governance 102–24 Nominating and selecting the highest governance body Performance—Board of Directors Governance Avient 2020 Annual Report—Form 10-K Pages 15–16 & 70 and Proxy Statement Pages 26–27 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 2020 Annual Report—Form 10-K Pages 15–16 & 70 and Proxy Statement Pages 23–29 https://www.avient.com/investors/governance 102–27 Collective knowledge of highest governance body Performance—Board of Directors Governance Avient 2020 Annual Report—Form 10-K Pages 15–16 & 70 and Proxy Statement Pages 14–18 https://www.avient.com/investors/governance HOME | Contents | Message from the CEO | Who We Are | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2020 88 http://newsletter.avient.com/IHDP/2020%20annual%20report/viewer/desktop/#page/1 http://newsletter.avient.com/IHDP/2020%20annual%20report/viewer/desktop/#page/1 http://newsletter.avient.com/IHDP/2020%20annual%20report/viewer/desktop/#page/1 https://www.avient.com/investors/financials/reporting-sec-filings https://www.avient.com/investors/governance http://newsletter.avient.com/IHDP/2020%20annual%20report/viewer/desktop/#page/1 https://www.avient.com/investors/financials/reporting-sec-filings https://www.avient.com/investors/governance http://newsletter.avient.com/IHDP/2020%20annual%20report/viewer/desktop/#page/1 https://www.avient.com/investors/financials/reporting-sec-filings https://www.avient.com/investors/governance http://newsletter.avient.com/IHDP/2020%20annual%20report/viewer/desktop/#page/1 https://www.avient.com/investors/financials/reporting-sec-filings https://www.avient.com/investors/governance http://newsletter.avient.com/IHDP/2020%20annual%20report/viewer/desktop/#page/1 https://www.avient.com/investors/financials/reporting-sec-filings https://www.avient.com/investors/governance https://www.avient.com/company/policies-and-governance/code-conduct https://www.avient.com/investors/governance http://newsletter.avient.com/IHDP/2020%20annual%20report/viewer/desktop/#page/1 https://www.avient.com/investors/financials/reporting-sec-filings https://www.avient.com/investors/governance http://newsletter.avient.com/IHDP/2020%20annual%20report/viewer/desktop/#page/1 https://www.avient.com/investors/financials/reporting-sec-filings https://www.avient.com/investors/governance GRI Standard Disclosure Title Avient Disclosures General Disclosures Governance 102–28 Evaluating the highest governance body's performance Performance—Board of Directors Governance Avient 2020 Proxy Statement Page 28 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 2020 Proxy Statement Page 24 https://www.avient.com/investors/governance 102–31 Review of economic, environmental, and social topics Performance—Board of Directors Governance; Enterprise Risk Management (ERM) Avient 2020 Annual Report—Form 10-K Pages 15–16 & 70 and Proxy Statement Pages 23–29 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 2020 Annual Report—Form 10-K Pages 15–16 & 70 and Proxy Statement Pages 23–29 https://www.avient.com/investors/governance 102–33 Communicating critical concerns Performance—Board of Directors Governance Avient 2020 Annual Report—Form 10-K Pages 15–16 & 70 and Proxy Statement Page 25 Code of Conduct https://www.avient.com/investors/governance 102–34 Nature and total number of critical concerns Avient 2020 Annual Report—Form 10-K Page 57 102–35 Renumeration Policies Avient 2020 Proxy Statement Pages 34–47 102–36 Process for determining renumeration Avient 2020 Proxy Statement Pages 34–47 102–37 Stakeholders' involvement in renumeration Avient 2020 Proxy Statement Page 36 102–38 Annual total compensation ratio Avient 2020 Proxy Statement Page 62 Stakeholder Engagement 102–40 List of stakeholder groups Throughout Avient 2020 Sustainability Report 102–41 Collective bargaining agreements People—Workforce Demographics Approximately 1% of North American associates are covered by collective bargaining agreements. GRI Standards Content Index HOME | Contents | Message from the CEO | Who We Are | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2020 89 https://www.avient.com/investors/financials/reporting-sec-filings https://www.avient.com/investors/governance https://www.avient.com/investors/governance https://www.avient.com/investors/financials/reporting-sec-filings https://www.avient.com/investors/governance http://newsletter.avient.com/IHDP/2020%20annual%20report/viewer/desktop/#page/1 https://www.avient.com/investors/financials/reporting-sec-filings https://www.avient.com/investors/governance http://newsletter.avient.com/IHDP/2020%20annual%20report/viewer/desktop/#page/1 https://www.avient.com/investors/financials/reporting-sec-filings https://www.avient.com/investors/governance http://newsletter.avient.com/IHDP/2020%20annual%20report/viewer/desktop/#page/1 https://www.avient.com/investors/financials/reporting-sec-filings https://www.avient.com/company/policies-and-governance/code-conduct https://www.avient.com/investors/governance http://newsletter.avient.com/IHDP/2020%20annual%20report/viewer/desktop/#page/1 https://www.avient.com/investors/financials/reporting-sec-filings https://www.avient.com/investors/financials/reporting-sec-filings https://www.avient.com/investors/financials/reporting-sec-filings https://www.avient.com/investors/financials/reporting-sec-filings http://newsletter.avient.com/IHDP/2020%20annual%20report/viewer/desktop/#page/1 GRI Standard Disclosure Title Avient Disclosures General Disclosures Reporting Practice 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. Code of Conduct https://www.avient.com/investors/governance GRI 206: Anti-Competitive Behavior 103-1, 2 and 3 Management approach—GRI 103 Code of Conduct 206–1 Legal actions for anti-competitive behavior, anti-trust, and monopoly practices No legal actions were brought against Avient for anti-competitive behavior, anti-trust, or monopoly practices in 2020.

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