1 AVIENT CORPORATION AUDIT COMMITTEE CHARTER Authority The Board of Directors, by resolution dated August 31, 2000, established the Audit Committee. The Audit Committee Charter was first adopted by the Board on September 6, 2000 and amended subsequently, the last amendment being July 14, 2021. Audit Committee Charter, approved on October 14, 2021.

AVIENT CORPORATION GOVERNANCE AND CORPORATE RESPONSIBILITY COMMITTEE CHARTER Membership • The Governance and Corporate Responsibility Committee (the “Committee”) of the Board of Directors (the “Board”) of Avient Corporation (the “Company”) will consist entirely of directors who meet the definition of “independent” as set forth in the Corporate Governance Standards of the New York Stock Exchange Evaluate and recommend the processes and practices that the Board shall use to conduct its business, including (a) the structure, charter and membership of committees of the Board and (b) committee membership qualifications, appointment and removal. The Committee will annually review its charter and recommend any changes to the Board of Directors.

The charter of the Committee is to oversee and monitor the establishment and maintenance by management of comprehensive environmental, health, safety, security and product stewardship policies, standards and practices to procure regulatory compliance and safety/environmental operational excellence on a global basis.

The Guidelines, together with the charters of the committees of the Board, provide the framework for the corporate governance of the Company. They are in addition to and are not intended to change or interpret any federal or state law or regulation, including the laws of the State of Ohio, the Company’s Amended and Restated Articles of Incorporation or Regulations, or any committee charter reviewed and approved by the Board. These committees operate in accordance with (a) their respective charters, which are reviewed annually, (b) applicable law, and (c) applicable rules of the Securities and Exchange Commission and the New York Stock Exchange.

The Guidelines, together with the charters of the committees of the Board, provide the framework for the corporate governance of the Company. They are in addition to and are not intended to change or interpret any federal or state law or regulation, including the laws of the State of Ohio, the Company’s Amended and Restated Articles of Incorporation or Regulations, or any committee charter reviewed and approved by the Board. These committees operate in accordance with (a) their respective charters, which are reviewed annually, (b) applicable law, and (c) applicable rules of the Securities and Exchange Commission and the New York Stock Exchange.

Name of Corporation Charter Number The articles are hereby amended by the Incorporators.

To accomplish this oversight, the Board has assigned responsibilities among committees of the Board and has documented those responsibilities in committee charters. To further its commitment to maintaining a diverse board, our Board recently revised the charter for the Governance and Corporate Responsibility Committee to include (and require that any search firm it engages to include) qualified female and racially/ethnically diverse persons, in the initial pool from which Director nominees are chosen. Sustainability Report | 2020 80 Audit Committee Charter California Transparency in Supply Chains Act Disclosure Code of Ethics—Applicable to Avient Senior Officers ColorMatrix Europe Limited—Modern Slavery and Human Trafficking Statement Compensation Committee Charter Conflict Minerals Policy Corporate Governance Guidelines Environmental Policy Equal Employment Opportunity Global Policy on Anti-Bribery and Anti-Corruption Global Policy on Antitrust Governance and Corporate Responsibility Committee Charter Position Statement on Human Rights Privacy Policy Product Stewardship Policy Quality Policy Responsible Care Policy Safety and Health Policy Security Policy Policies & Guidelines In addition to our Code of Conduct, our corporate governance policies show our commitment to honest, ethical business practices and compliance with applicable law.

Our Corporate Governance Guidelines and our Committee charter furthers our commitment to maintain diversity at the highest levels of our company. To accomplish this oversight, the Board has assigned responsibilities among committees of the Board and has documented those responsibilities in committee charters. To further its commitment to maintaining a diverse board, during any search for a new Board member, the charter for the Governance and Corporate Responsibility Committee requires the inclusion of qualified female and racially/ethnically diverse persons in the initial pool from which Director nominees are chosen.

However, we recently made some changes to our committee’s charter to better reflect this role, and accordingly have changed the name of our committee to the Governance and Corporate Responsibility Committee. To accomplish this oversight, the Board has assigned responsibilities among committees of the Board and has documented those responsibilities in committee charters. Quality Policy Corporate Governance Guidelines Product Stewardship Policy Safety and Health Policy Environmental Policy Security Policy Conflict Minerals Policy Compensation Committee Charter Governance and Corporate Responsibility Committee Charter Audit Committee Charter Code of Ethics—Applicable to Avient Senior Officers Position Statement on Human Rights California Transparency in Supply Chains Act Disclosure Privacy Policy Sustainability Report | 2019 84 https://www.avient.com/sites/default/files/2020-10/avient-quality-policy.pdf https://www.avient.com/sites/default/files/2020-07/avient-corporate-governance-guidelines-change-in-ng-committee-name-2020.pdf https://www.avient.com/sites/default/files/2020-10/avient-product-stewardship-policy-august-2020.pdf https://www.avient.com/sites/default/files/2020-10/avient-health-safety-policy-august-2020.pdf https://www.avient.com/sites/default/files/2020-10/avient-security-policy-august-2020.pdf https://www.avient.com/sites/default/files/2020-10/avient-conflict-minerals-policy-10.2020.pdf https://www.avient.com/sites/default/files/2020-07/avient-compensation-committee-charter-amended-july-2018-name-july-2020.pdf https://www.avient.com/sites/default/files/2020-07/avient-governance-and-corporate-responsibility-committee-charter-rev-2020.pdf https://www.avient.com/sites/default/files/2020-07/avient-audit-committee-charter-rev-10-2019.pdf https://www.avient.com/sites/default/files/2020-07/code-of-ethics-for-ceo-cfo-and-controller.pdf https://oag.ca.gov/SB657 https://www.avient.com/company/policies-and-governance/polyone-corporation-privacy-statement GOALS & METRICS Sustainability Report | 2019 85 By 2030, Avient will enable 100% of our products manufactured for packaging applications to be recyclable or reusable to advance the circular economy

However, we recently made some changes to our committee’s charter to better reflect this role, and accordingly have changed the name of our committee to the Governance and Corporate Responsibility Committee. To accomplish this oversight, the Board has assigned responsibilities among committees of the Board and has documented those responsibilities in committee charters. Quality Policy Corporate Governance Guidelines Product Stewardship Policy Safety and Health Policy Environmental Policy Security Policy Conflict Minerals Policy Compensation Committee Charter Governance and Corporate Responsibility Committee Charter Audit Committee Charter Code of Ethics—Applicable to Avient Senior Officers Position Statement on Human Rights California Transparency in Supply Chains Act Disclosure Privacy Policy Sustainability Report | 2019 84 https://www.avient.com/sites/default/files/2020-10/quality-policy.pdf https://www.avient.com/sites/default/files/2020-07/avient-corporate-governance-guidelines-change-in-ng-committee-name-2020.pdf https://www.avient.com/sites/default/files/2020-10/avient-product-stewardship-policy-august-2020.pdf https://www.avient.com/sites/default/files/2020-10/avient-health-safety-policy-august-2020.pdf https://www.avient.com/sites/default/files/2020-10/avient-security-policy-august-2020.pdf https://www.avient.com/sites/default/files/2020-10/avient-conflict-minerals-policy-10.2020.pdf https://www.avient.com/sites/default/files/2020-07/avient-compensation-committee-charter-amended-july-2018-name-july-2020.pdf https://www.avient.com/sites/default/files/2020-07/avient-governance-and-corporate-responsibility-committee-charter-rev-2020.pdf https://www.avient.com/sites/default/files/2020-07/avient-audit-committee-charter-rev-10-2019.pdf https://www.avient.com/sites/default/files/2020-07/code-of-ethics-for-ceo-cfo-and-controller.pdf https://oag.ca.gov/SB657 https://www.avient.com/company/policies-and-governance/polyone-corporation-privacy-statement GOALS & METRICS Sustainability Report | 2019 85 By 2030, Avient will enable 100% of our products manufactured for packaging applications to be recyclable or reusable to advance the circular economy