About PolyOne PolyOne Corporation, with 2015 revenues of $3.4 billion, is a premier provider of specialized polymer materials, services and solutions. Media contact  Michelle Maniscalco Senior Manager, Marketing Communications PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com  Company Officers

CLEVELAND – June 11, 2018 – PolyOne Corporation (NYSE: POL) today unveiled the first-ever thermoplastic elastomer (TPE) material able to resist bl CLEVELAND – May 9, 2018 – PolyOne Corporation (NYSE: POL) today announced that its thermoplastic elastomer (TPE) materials for packaging are enabl Company Officers

CLEVELAND – PolyOne Corporation (NYSE: POL), a premier provider of specialized polymer materials, services and solutions, today announced that Bradl CLEVELAND - PolyOne Corporation (NYSE: POL), a premier provider of specialized polymer materials, services and solutions, today announced that Scott J Company Officers

Avient Corporation was originally established as PolyOne Corporation in 2000 through the consolidation of two companies in the materials industry. Avient Corporation (NYSE: AVNT), with 2023 revenues of $3.1 billion, is a leading provider of specialized and sustainable materials solutions.

PolyOne Corporation chairman, president, and chief executive officer, executive vice president and chief financial officer,

Michelle Maniscalco Senior Manager, Marketing Communications Avient Corporation michelle.maniscalco@avient.com Jennifer Huang Senior Manager, Marketing Communications Asia Avient Corporation +86 21 6028-4888 jennifer.huang@avient.com Company Officers

Avient Corporation’s PCR Color Prediction Service earns 2023 Re|focus Sustainability Innovation in Design Award by The Plastics Industry Association (PLASTICS). Media contact Nicole DeChant Avient Corporation nicole.dechant@avient.com Company Officers

Our purpose at Avient Corporation (NYSE: AVNT) is to be an innovator of materials solutions that help our customers succeed, while enabling a sustainable world. Media Contact Nicole DeChant Avient Corporation nicole.dechant@avient.com Company Officers

Avient Corporation provides specialized and sustainable materials solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Media Contact Nicole DeChant Avient Corporation nicole.dechant@avient.com Company Officers

MILAN – December 7, 2021 – Avient Corporation today announced the release of ColorForward™ 2023, the 17th edition of the annual color forecasting guide for the plastics industry created by its ColorWorks™ team.  Media contact Michelle Maniscalco Senior Manager, Marketing Communications Avient Corporation michelle.maniscalco@avient.com Company Officers