Total Company Investor Relations Contact: Giuseppe (Joe) Di Salvo, Vice President, Treasurer and Investor Relations, Avient Corporation, +1 440-930-1921, giuseppe.disalvo@avient.com; Media Contact: Kyle G. Investor Contacts

Director since: 2023 Age: 56 Current Public Company Directorships: • Constellation Energy Corporation Former Directorships: • 3M India ELECTION OF BOARD OF DIRECTORS PROXY STATEMENT 2024 | Annual Meeting of Shareholders 19 Sandra Beach Lin Retired President, Chief Executive Officer and Director of Calisolar, Inc. The Consultant regularly attends Compensation Committee meetings, maintains regular contact with the Compensation Committee, and interacts with management to gather the data needed to prepare reports for Compensation Committee review. To obtain comparability based on company size, the Consultant’s analysis either referenced a specific sample of comparably-sized companies or calibrated the pay of a broad sample of companies against company size.

Investor Relations Contact: Media Contact: Media Relations Contacts

Avient Company Officers Investor Contacts

Avient Company Officers Investor Contacts

Business Media Contact: Trade Media Contact: Company Officers

It offers the most comprehensive story of our company yet, in terms of our culture, who we are as as one of America's Most Responsible Companies by Newsweek Investor Contacts

Investor Relations Contact: Eric R. Swanson, Director, Investor Relations, PolyOne Corporation, +1 440-930-1018, eric.swanson@avient.com; Media Contact: Kyle G. Investor Contacts

Media contacts Media Relations Contacts Company Officers

Media contact Media Relations Contacts Company Officers