Independent Testing Proves PolyOne Shock-Absorbing TPEs Protect Phone Cases from Impact Better Than TPUs PolyOne Launches First-Ever TPE with Blue Jean Stain Resistance for Phone Cases Beyond Acrylic: New Resilience™ LS Materials from PolyOne Boost LED Lens Performance

Total company adjusted EBITDA margin expanded to 16.2%, and we generated adjusted EPS of $2.66, up 13% from the prior year(1). 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. The graph assumes the investing of $100 from December 31, 2019 through December 31, 2024.

Accounts receivable, net Accounts payable Decrease in accounts receivable

Accounts receivable, net Accounts payable Increase (decrease) in accounts payable

The Company may find it necessary, from time to time, to require compliance with the pre-clearance process from employees or agents other than and in addition to the Covered Employees. 9. The policy does apply, however, to certain elections you may make under the 401(k) plan, including an election to make an intra-plan transfer of an existing account balance into or out of the Company stock fund. 14. Sanders Phone: (440) 930-1318 For Pre-clearance Contact: Amy M.

How do I identify key application requirements? The product doesn’t break from temperature fluctuations, exposure to moisture, or impact/drops Over 10 injection molding machines ranging from 50–550 tons

Find out how and where these game changing materials are being used in healthcare applications

Discover how Avient can help you develop and build nearly any automotive part you need to create. Read how the combined value of a specialty TPE and technical support met processing and performance demands

Discover how to choose the best filler or reinforcement for your application needs. Discover how Avient can help you develop and build nearly any automotive part you need to create.

Accounts receivable, net Accounts payable Increase in accounts payable