Domestic: 1-844-835-7433 +1 440-930-1018 +1 440-930-3162

Tuesday, March 1, 2016 Swanson, Director, Investor Relations PolyOne Corporation, +1 440-930-1018, eric.swanson@avient.com, Media Contact: Kyle G. Rose, Vice President, Corporate Communications PolyOne Corporation, +1 440-930-3162, kyle.rose@avient.com

When: Thursday, March 26, 2015 – Presentation Time: 1:00 PM Investor Relations Contact: Eric Swanson Director, Investor Relations PolyOne Corporation +1 440-930-1018 eric.swanson@avient.com Media Contact: Kyle Rose Vice President, Corporate Communications PolyOne Corporation +1 440-930-3162 kyle.rose@avient.com

When: Tuesday, May 19, 2015 – Presentation Time: 1:10 PM 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

Future Mobility Innovations Gain Traction with Visionary PolyOne Materials and Services Portfolio

New PTFE-free and non-halogen Cesa™ Flame Retardant Additives can help producers of polycarbonate E&E applications prepare for possible future P

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

October 1, 2018 CLEVELAND, June 1, 2018 /PRNewswire/ -- PolyOne Corporation (NYSE: POL), a premier global provider of specialized polymer materials, servi June 1, 2018

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DeLuca Vice President, Investor Relations PolyOne Corporation +1 440-930-1226 isaac.deluca@avient.com Rose Director, Corporate Communications PolyOne Corporation +1 440-930-3162 kyle.rose@avient.com Trade Media Contact: Michelle Maniscalco Marketing Communications Manager, North America PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com