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Wulfsohn 69 AVIENT CORPORATION [This page intentionally left blank] [This page intentionally left blank] [This page intentionally left blank] 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 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. Shareholders will be able to attend and participate in the annual meeting online, vote shares electronically, and submit questions during the annual meeting by visiting www.virtualshareholdermeeting.com/AVNT2024.

NORTH AMERICA (Goods manufactured by Avient): Use the search boxes on the current page to use the online search for SDS for products manufactured by Avient. NORTH AMERICA (Goods manufactured by Avient): Use the search boxes on the current page to use the online search for SDS for products manufactured by Avient.

NORTH AMERICA (Goods manufactured by Avient): Use the search boxes on the current page to use the online search for SDS for products manufactured by Avient. NORTH AMERICA (Goods manufactured by Avient): Use the search boxes on the current page to use the online search for SDS for products manufactured by Avient.

NORTH AMERICA (Goods manufactured by Avient): Use the search boxes on the current page to use the online search for SDS for products manufactured by Avient. NORTH AMERICA (Goods manufactured by Avient): Use the search boxes on the current page to use the online search for SDS for products manufactured by Avient.

NORTH AMERICA (Goods manufactured by Avient): Use the search boxes on the current page to use the online search for SDS for products manufactured by Avient. NORTH AMERICA (Goods manufactured by Avient): Use the search boxes on the current page to use the online search for SDS for products manufactured by Avient.

NORTH AMERICA (Goods manufactured by Avient): Use the search boxes on the current page to use the online search for SDS for products manufactured by Avient. NORTH AMERICA (Goods manufactured by Avient): Use the search boxes on the current page to use the online search for SDS for products manufactured by Avient.

NORTH AMERICA (Goods manufactured by Avient): Use the search boxes on the current page to use the online search for SDS for products manufactured by Avient. NORTH AMERICA (Goods manufactured by Avient): Use the search boxes on the current page to use the online search for SDS for products manufactured by Avient.

NORTH AMERICA (Goods manufactured by Avient): Use the search boxes on the current page to use the online search for SDS for products manufactured by Avient. NORTH AMERICA (Goods manufactured by Avient): Use the search boxes on the current page to use the online search for SDS for products manufactured by Avient.