A recording of the webcast and the slide presentation will be available at avient.com/investors/events-presentations immediately following the conference call and will be accessible for one year.

A recording of the webcast and the slide presentation will be available at avient.com/investors/events-presentations immediately following the conference call and will be accessible for one year.

A recording of the webcast and the slide presentation will be available at avient.com/investors/events-presentations immediately following the conference call and will be accessible for one year.

PolyOne has a proven track record of innovating and collaborating with our customers to develop specialty formulations that meet their specific performance needs,” said Craig Nikrant, president, Global Specialty Engineered Materials, PolyOne Corporation.

Each Committee member will serve until his or her successor is elected and qualified, or until his or her earlier death, retirement, resignation, or removal by the Board. • The Committee will consist of a minimum of three directors.

Adjusted EPS expands 15% to a new first quarter record of $0.68 driven by a 20% increase in operating income from Color, Additives and Inks A recording of the call will also be available for one week, beginning at To listen to this recording, dial 1-855-859-2056 (domestic) or 1-404-537-3406 (international) and enter conference ID number 6747028.

RECORD DATE The Board set March 19, 2024 as the record date for the Annual Meeting and owners of record of common shares of Avient as of the close of business on that date are eligible to: • Receive this notice of the Annual Meeting; and • Vote at the Annual Meeting and any adjournments or postponements of the Annual Meeting. Shareholders as of the close of business on March 19, 2024, the record date for the Annual Meeting (the "Record Date"), may attend and participate in the Annual Meeting. VOTING AT THE MEETING Shareholders of record at the close of business on the Record Date, March 19, 2024, are entitled to vote at the Annual Meeting.

added, "Our Color, Additives and Inks segment also delivered record operating income of A recording of the webcast and the investor presentation will be available at avient.com/investors. In addition, a recording of the audio will be available for one week, beginning at

Public Health Service, the incidence of hospital-acquired infections (HAI’s), such as MRSA and VRE, has increased approximately 36% in the last 20 years and today causes nearly 100,000 deaths annually.

Vinod's expertise in material science and proven track record in differentiating product development will further position