Kahler, senior vice president, chief commercial officer. Rose Director, Corporate Communications PolyOne Corporation +1 440-930-3162 kyle.rose@avient.com Company Officers

Patterson, president and chief executive officer, PolyOne Corporation. Media contact: Kyle Rose Director, Corporate Communications PolyOne Corporation +1 440-930-3162 kyle.rose@avient.com Company Officers

Patterson, president and chief executive officer, PolyOne Corporation. Rose Director, Corporate Communications PolyOne Corporation +1 440.930.3162 kyle.rose@avient.com Company Officers

During the meeting PolyOne’s President and Chief Executive Officer Robert M. Rose Vice President, Corporate Communications PolyOne Corporation +1 440-930-3162 kyle.rose@avient.com Company Officers

Swanson Director, Investor Relations PolyOne Corporation +1 440-930-1018 eric.swanson@avient.com Rose Vice President, Corporate Communications PolyOne Corporation +1 440-930-3162 kyle.rose@avient.com Company Officers

BEGGS Senior Vice President and Chief Financial Officer Jamie A. Beggs is senior vice president and chief financial officer of Avient Corporation, a premier provider of specialized and sustainable material solutions and services. Prior to Hunt, she worked for Celanese Corporation, where she served in a variety of finance and business positions, including vice president and corporate treasurer, and earlier as chief financial officer of the materials solutions business.

For the same reasons, the Company is unable to address the probable significance of the unavailable information. Clariant Revenue Synergies Avient Corporation 19 Avient Corporation 20 Customer Experience I N S P I R A T I O N . D is tr ib u tio n Avient Corporation 132 A V N T ex .

PolyOne Corporation, with 2013 revenues of $3.8 billion, is a premier provider of specialized polymer materials, services and solutions. Matt Defosse Marketing Communications Manager, Europe PolyOne Corporation +49 6406-832-061 matt.defosse@avient.com Company Officers

PolyOne Corporation, with 2014 revenues of $3.8 billion, is a premier provider of specialized polymer materials, services and solutions. Michelle Maniscalco Marketing Communications Manager, North America PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com Company Officers

CLEVELAND – May 19, 2023 – Avient Corporation, a premier provider of specialized and sustainable material solutions and services, is proud to announce it has earned the LUXE PACK “in green” award, highlighting a Corporate Social Responsibility (CSR) initiative.   Media contact Nicole DeChant Avient Corporation nicole.dechant@avient.com Company Officers