DeLuca Vice President, Investor Relations PolyOne Corporation +1 440-930-1226 isaac.deluca@avient.com Media Contact: Kyle Rose Director, Corporate Communications PolyOne Corporation +1 440-930-3162 kyle.rose@avient.com

DeLuca Vice President, Investor Relations PolyOne Corporation +1 440-930-1226 isaac.deluca@avient.com Media Contact: Kyle Rose Director, Corporate Communications PolyOne Corporation +1 440-930-3162 kyle.rose@avient.com

CLEVELAND, June 1, 2017 /PRNewswire/ -- PolyOne Corporation (NYSE: POL), a premier provider of specialized polymer materials, services and solutions June 1, 2017

CLEVELAND, Sept. 1, 2022 /PRNewswire/ -- Avient Corporation (NYSE: AVNT), a leading provider of specialized and sustainable material solutions, has September 1, 2022

CLEVELAND, Nov. 1, 2022 /PRNewswire/ -- Avient Corporation (NYSE: AVNT), a leading global provider of specialized and sustainable material solutions November 1, 2022

CLEVELAND, Oct. 1, 2018 /PRNewswire/ -- PolyOne Corporation (NYSE: POL) a premier provider of specialized polymer materials, services and solutions, October 1, 2018

November 1, 2022 November 1, 2022

Corporate Media Relations North America     Kyle Rose     +1 (440) 930-3162     Kyle.Rose@avient.com Avient Investor Relations     Giuseppe (Joe) Di Salvo     +1 (440) 930-1921     Giuseppe.DiSalvo@avient.com     North America     Nicole DeChant     +1 (440) 930-1309     Nicole.DeChant@avient.com

MORADO 0270-5-1 V3 PANTONE 150-5-1 PANTONE 0330-4-1

X GT-18029-1-1 X GT-18029-1-1 X GT-18029-1-3