1. This includes standards for flame retardant performance to IEC 60332-1, another key characteristic to consider.   How can Avient help?  

The determination of the GHG emissions is the sole responsibility of Avient. Verification Opinion: Based on the verification process and procedures conducted to a limited assurance level of the GHG emissions statement shown above, Apex found no evidence that the GHG emissions statement:  is not materially correct and is not a fair representation of the GHG emissions data and information; and  has not been prepared in accordance with the WRI/WBCSD GHG Protocol Corporate Accounting and Reporting Standard (Scope 1 and 2), and WRI/WBCSD Greenhouse Gas Protocol Corporate Value Chain Accounting and Reporting Standard (Scope 3). Miami, Florida Lakewood, Colorado July 24, 2023 This verification declaration including the opinion expressed herein, is provided to Avient and is solely for the benefit of Avient in accordance with the terms of our agreement.

Annual Report | 2024 2 STOCK EXCHANGE LISTING Avient's Common Stock is listed on the New York Stock Exchange, Symbol: AVNT SHAREHOLDER INQUIRIES If you have any questions concerning your account as a shareholder, name or address changes, inquiries regarding stock certificates, or if you need tax information regarding your account, please contact our transfer agent: Equiniti Trust Company, LLC 1110 Centre Pointe Curve, Suite 101 Mendota Heights, MN 55120-4100 Phone: 1-855-598-2615 or 1-651-450-4064 www.shareowneronline.com Additional information about Avient, including current and historic copies of Annual Reports on Form 10-K and other reports filed with the Securities and Exchange Commission, is available online at www.avient.com or free of charge from: Investor Relations Avient Corporation 33587 Walker Road Avon Lake, Ohio 44012 Phone: 1-440-930-1000 ANNUAL MEETING The annual meeting of Avient will be held virtually via live webcast at 9:00 a.m. Committees: 1, 2 Gregory J. Committees: 1, 4 Kim Ann Mink, Ph.D.

This makes them ideal for applications where weight savings is important, such as aerospace, automotive, and transportation. Weight requirements: Is weight savings important for the application?

This makes them ideal for applications where weight savings is important, such as aerospace, automotive, and transportation. Weight requirements: Is weight savings important for the application?

This makes them ideal for applications where weight savings is important, such as aerospace, automotive, and transportation. Weight requirements: Is weight savings important for the application?

This makes them ideal for applications where weight savings is important, such as aerospace, automotive, and transportation. Weight requirements: Is weight savings important for the application?

1. This includes standards for flame retardant performance to IEC 60332-1, another key characteristic to consider.   How can Avient help?  

1. This includes standards for flame retardant performance to IEC 60332-1, another key characteristic to consider.   How can Avient help?  

Avient’s chief operating decision maker uses these financial measures to monitor and evaluate the ongoing performance of Avient and each business segment and to allocate resources. Pro Forma Financial Information The Company acquired Avient Protective Materials (“Dyneema”) on September 1, 2022 (the “Acquisition Date”) and sold the Distribution segment on November 1, 2022. To provide comparable results, the company references “pro forma” financial metrics, which include the business results of Avient Protective Materials for periods prior to the Acquisition Date, as if the transaction occurred on January 1, 2021 and reflect Distribution as a discontinued operation.