Rodriguez 47 Senior Vice President, Chief Human Resource Officer John V. John V. SCHUERING Vice President, Global Key Account Management JOHN V.

Smith 57 Senior Vice President, Chief Information and Human Resources Officer John V. John V. TOMASCH Vice President, Planning and Investor Relations JOHN V.

Cuối cùng, bạn phải coi trọng mức độ nghiêm trọng của các hình phạt trong lĩnh vực này và Avient sẽ không bỏ qua bất kỳ hành vi nào trái với các điều khoản của Chính sách chống độc quyền này hoặc quy định của pháp luật. 6 Nội dung Chính sách Chống độc quyền Sửa đổi Năm 2021 Báo cáo các v i phạm có thể xảy ra Khi có lý do để tin rằng đã xảy ra hoặc có thể xảy ra sự vi phạm Chính sách này, nhân viên phải báo cáo kịp thời lo ngại của mình cho bất kỳ hoặc tất cả các đầu mối liên lạc dưới đây để có thể tiến hành điều tra kỹ lưỡng. • Người giám sát của mình hoặc bất kỳ quản lý nào của Avient; • Nhân viên phụ trách về Đạo đức Doanh nghiệp qua email tại địa chỉ ethics.officer@avient.com • Trưởng phòng Pháp chế của Avient qua email tại địa chỉ legal.officer@avient.com • Bất kỳ nhân viên nào của phòng Pháp chế • Đường dây nóng về Đạo đức của Avient Đường dây nóng về Đạo đức của Av ient Đường dây nóng về đạo đức có sẵn trên toàn cầu với 20 ngôn ngữ, hoạt động 24 giờ một ngày, 7 ngày một tuần, qua điện thoại và qua trang web.

v) “Participant” means a person who is selected by the Compensation Committee to receive benefits under this Plan and who is at the time (i) an officer or other employee of the Company or any Subsidiary, including a person who has agreed to commence serving in such capacity within 90 days of the Date of Grant, (ii) a person, including a consultant, who provides services to the Company or any Subsidiary that are equivalent to those typically provided by an employee (provided that such person satisfies the Form S-8 definition of an “employee”), or (iii) a non-employee Director. c) Each grant will specify whether the Option Price will be payable (i) in cash or by check acceptable to the Company or by wire transfer of immediately available funds, (ii) by the actual or constructive transfer to the Company of Common Shares owned by the Optionee having a value at the time of exercise equal to the total Option Price, (iii) subject to any conditions or limitations established by the Compensation Committee, by the Company’s withholding of Common Shares otherwise issuable upon exercise of an Option Right pursuant to a “net exercise” arrangement (it being understood that, solely for purposes of determining the number of treasury shares held by the Company, the Common Shares so withheld will not be treated as issued and acquired by the Company upon such exercise), (iv) by a combination of such methods of payment, or (v) by such other methods as may be approved by the Compensation Committee. v) Each grant of Appreciation Rights will be evidenced by an Evidence of Award.

CREATING A WORLD-CLASS, SUSTAINABLE ORGANIZATION ANNUAL REPORT 2022 A V IE N T C O R P O R A T IO N A N N U A L R E P O R T 2022 Our Vision At Avient, we create specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. In September 2007, the United States District Court for the Western District of Kentucky (Court) in the case of Westlake Vinyls, Inc. v. Committees: 1, 2 A V IE N T C O R P O R A T IO N A N N U A L R E P O R T 2022 Challenge Accepted.

Smith 59 Senior Vice President, Chief Information and Human Resource Officer John V. John V. In September 2007, we were informed of rulings by the United States District Court for the Western District of Kentucky on several pending motions in the case of Westlake Vinyls, Inc. v.

Skills/Experience Ab er na th y Fe ar on Go ff Gr ee n Je lli so n Kh an dp ur Li n M in k Ni co la s Pr ee te Ve rd ui n W ul fs oh n Financial Knowledge of finance or financial reporting; experience with debt/capital market transactions and/or mergers and acquisitions l l l l l l l l International Experience doing business internationally or focused on international issues and operations and exposure to markets, economies, and cultures outside the U.S. l l l l l l l l l l l l Industry Expertise Significant experience in the Company’s businesses and industries l l l l l l l l l Regulatory Experience in government and regulatory affairs, and regulated industries, including as part of a business and/or through positions with government organizations and regulatory bodies l l l l l l l l Technology Technical or scientific knowledge and experience implementing technology strategies l l l l l Human Capital Experience in management of labor relations, in human resources, and talent management l l l l l l l l l l Operations Experience overseeing complex operations and developing and implementing operational plans and business operations strategy l l l l l l l l l l l Corporate Governance Experience and understanding of governance matters and principles, including management accountability, transparency and protection of shareholder interests l l l l l l l l l l l l IT and Cybersecurity Experience and understanding of information security, data privacy and cybersecurity l l l l Sustainability Experience in environmental matters, community affairs, and/or corporate responsibility initiatives including sustainability l l l l l l l l l l l l Other Public Company Boards 1 3 1 — — 1 2 2 — 1 2 1 PROXY SUMMARY 12 PROXY STATEMENT 2024 | Annual Meeting of Shareholders Board Diversity Matrix (as of March 19, 2024) Total Number of Directors 12 Female Male Gender Identity Directors 3 9 Demographic Background African American or Black — 2 Alaskan Native or Native American — — Asian — 1 Hispanic or Latinx — — Native Hawaiian or Pacific Islander — — White 3 6 Two or More Races or Ethnicities — — Supplemental Characteristics Person with Disability/Disabilities 1 — Military Veteran — — Person of International / Non-U.S.

Skills/Experience Ab er na th y Fe ar on Go ff Gr ee n Je lli so n Kh an dp ur Li n M in k Ni co la s Pr ee te Ve rd ui n W ul fs oh n Financial Knowledge of finance or financial reporting; experience with debt/capital market transactions and/or mergers and acquisitions l l l l l l l l International Experience doing business internationally or focused on international issues and operations and exposure to markets, economies, and cultures outside the U.S. l l l l l l l l l l l l Industry Expertise Significant experience in the Company’s businesses and industries l l l l l l l l l Regulatory Experience in government and regulatory affairs, and regulated industries, including as part of a business and/or through positions with government organizations and regulatory bodies l l l l l l l l Technology Technical or scientific knowledge and experience implementing technology strategies l l l l l Human Capital Experience in management of labor relations, in human resources, and talent management l l l l l l l l l l Operations Experience overseeing complex operations and developing and implementing operational plans and business operations strategy l l l l l l l l l l l Corporate Governance Experience and understanding of governance matters and principles, including management accountability, transparency and protection of shareholder interests l l l l l l l l l l l l IT and Cybersecurity Experience and understanding of information security, data privacy and cybersecurity l l l l Sustainability Experience in environmental matters, community affairs, and/or corporate responsibility initiatives including sustainability l l l l l l l l l l l l Other Public Company Boards 1 3 1 — — 1 2 2 — 1 2 1 PROXY SUMMARY 12 PROXY STATEMENT 2024 | Annual Meeting of Shareholders Board Diversity Matrix (as of March 19, 2024) Total Number of Directors 12 Female Male Gender Identity Directors 3 9 Demographic Background African American or Black — 2 Alaskan Native or Native American — — Asian — 1 Hispanic or Latinx — — Native Hawaiian or Pacific Islander — — White 3 6 Two or More Races or Ethnicities — — Supplemental Characteristics Person with Disability/Disabilities 1 — Military Veteran — — Person of International / Non-U.S.

Skills/Experience A be rn at hy Fe ar o n G o ff G re en Je lli so n K ha nd pu r Li n M in k N ic o la s P re et e V er du in W ul fs o hn Financial Knowledge of finance or financial reporting; experience with debt/capital market transactions and/or mergers and acquisitions l l l l l l l l l International Experience doing business internationally or focused on international issues and operations and exposure to markets, economies, and cultures outside the U.S. l l l l l l l l l l l l Industry Expertise Significant experience in the Company’s businesses and industries l l l l l l l l l Regulatory Experience in government and regulatory affairs, and regulated industries, including as part of a business and/or through positions with government organizations and regulatory bodies l l l l l l l l Technology Technical or scientific knowledge and experience implementing technology strategies l l l l l Human Capital Experience in management of labor relations, in human resources, and talent management l l l l l l l l l l Operations Experience overseeing complex operations and developing and implementing operational plans and business operations strategy l l l l l l l l l l l Corporate Governance Experience and understanding of governance matters and principles, including management accountability, transparency and protection of shareholder interests l l l l l l l l l l l l IT and Cybersecurity Experience and understanding of information security, data privacy and cybersecurity l l l l Sustainability Experience in environmental matters, community affairs, and/or corporate responsibility initiatives including sustainability l l l l l l l l l l l l Other Public Company Boards 1 3 — — 2 1 2 2 — 1 2 1 OUR PURPOSE AND STRATEGIC FRAMEWORK PROXY STATEMENT 2025 | Annual Meeting of Shareholders 7 Governance Highlights As part of our commitment to overall excellence, our Company’s governance practices include the following: Director Independence • Eleven out of our twelve Director nominees are independent. • The independent Directors regularly hold executive sessions without management at Board and committee meetings.

DEFRA version: 2021 v 1.0 DEFRA - Waste disposal - Refuse - Commercial and industrial waste - Combustion DEFRA - Waste disposal - Refuse - Commercial and industrial waste - Landfill DEFRA - Waste disposal - Refuse - Commercial and industrial waste - Closed-loop DEFRA – Business travel – air – Flights - Short-haul – Economy class DEFRA – Business travel – air – Flights - Short-haul – Business class DEFRA – Business travel – air – Flights - Long-haul – Economy class DEFRA – Business travel – air – Flights - Long-haul – Premium economy class DEFRA – Business travel – air – Flights - Long-haul – Business class DEFRA – Business travel – land – Cars (by size) – Average car – Petrol Truck freight: DEFRA - Freighting goods - HGV (all diesel) - All HGVs – Average laden Sea Freight: DEFRA - Freighting goods – Cargo ship – General cargo – Average Air Freight: DEFRA - Freighting goods – Freight flights – Domestic Air Freight: DEFRA - Freighting goods – Freight flights – Short-haul Air Freight: DEFRA - Freighting goods – Freight flights – Long-haul SC1.3 (SC1.3) What are the challenges in allocating emissions to different customers, and what would help you to overcome these challenges?