CLEVELAND – January 27, 2019 – PolyOne Corporation, as part of its continuing sustainability efforts, today announced it has joined The UK Plastics Pact, a collaborative initiative committed to tackling plastic pollution. PolyOne Corporation (NYSE: POL), with 2018 revenues of $2.9 billion, is a premier provider of specialized polymer materials, services and solutions. Michelle Maniscalco Senior Manager, Marketing Communications PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com

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Director, Investor Relations PolyOne Corporation Vice President, Corporate Communications PolyOne Corporation Marketing Communications Manager, North America PolyOne Corporation

HC360 magazine selected PolyOne as one of the outstanding leading brands committed to promoting the development of China’s plastics industry over the last year. PolyOne Corporation, with 2013 revenues of $3.8 billion, is a premier provider of specialized polymer materials, services and solutions. Media Contact Jennifer Huang Marketing Communications Manager, Asia PolyOne Corporation +86 21 50802923 jennifer.huang@avient.com

Replay: The replay will be available for one week, beginning at              12:30 p.m. 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

Replay: The replay will be available for one week, beginning at              11:30 a.m. PolyOne Corporation, with 2013 revenues of $3.8 billion, is a premier provider of specialized polymer materials, services and solutions. Media Contact: Kyle Rose Vice President, Corporate Communications PolyOne Corporation +1 440-930-3162 kyle.rose@avient.com

Replay: The replay will be available for one week, beginning at               2:00 p.m. 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

Replay: The replay will be available for one week, beginning at               12:00 p.m. 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

Replay: The replay will be available for one week, beginning at              12:00 p.m. 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  

The replay will be available for one week, beginning at 12:00 p.m. Director, Investor Relations PolyOne Corporation Vice President, Corporate Communications PolyOne Corporation