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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.

Media Contact Nicole DeChant Avient Corporation nicole.dechant@avient.com Media Relations Contacts Company Officers

Media contact Nicole DeChant Avient Corporation nicole.dechant@avient.com Media Relations Contacts Company Officers

Media Contact Jennifer Huang Senior Manager, Marketing Communications Asia +86 21 6028 4888 jennifer.huang@avient.com Media Relations Contacts Company Officers

Incident reporting and contact tracing procedures, including self-quarantine if suspected exposure Companies acquired by Avient go through a rigorous EH&S integration process to bring new sites in line with our high standards and policies. These rates are compiled globally and reported on a monthly basis to all leadership personnel in the company.

Polyone Corporation at Roulston & Company Midwest Conference Avient Company Officers Investor Contacts

PolyOne Corporation at Gabelli & Company Specialty Chemical Conference Avient Company Officers Investor Contacts

PolyOne IR Presentation - Gabelli & Company Specialty Chemical Conference - 3/22/2017 Avient Company Officers Investor Contacts

The question and answer session will follow the company's presentation and prepared remarks. Investor Relations Contact: Giuseppe (Joe) Di Salvo, Vice President, Treasurer and Investor Relations, +1 440-930-1921, giuseppe.disalvo@avient.com ; Media Contact: Kyle G. Investor Contacts