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

MEXICO CITY – March 7, 2022 – Avient Corporation, a premier provider of specialized and sustainable material solutions and services, will exhibit in person at the Plastimagen tradeshow this week. Media contact Michelle Maniscalco Senior Manager, Marketing Communications Avient Corporation michelle.maniscalco@avient.com Company Officers

CLEVELAND – July 31, 2020 – Avient Corporation, a leading provider of specialized and sustainable material solutions, today announced the addition of eight new grades to its healthcare portfolio of Versaflex™ thermoplastic elastomers (TPEs). Michelle Maniscalco Senior Manager, Marketing Communications Avient Corporation +1 440-930-1988 michelle.maniscalco@avient.com Company Officers

PolyOne Corporation, with 2017 revenues of $3.2 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 Company Officers

Avient Corporation provides specialized and sustainable material 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

Avient Corporation (NYSE: AVNT) provides specialized and sustainable material 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

CLEVELAND – November 10, 2020 – Avient Corporation, a premier provider of specialized and sustainable material solutions and services, today introduced its newest sustainable material family: Artisan™ thermoplastics. Michelle Maniscalco Senior Manager, Marketing Communications Avient Corporation +1 440-930-1988 michelle.maniscalco@avient.com Company Officers

PolyOne Corporation, with 2013 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

SHANGHAI – August 12, 2020 – Avient Corporation, a premier provider of specialized and sustainable material solutions and services, today launched a new generation of Edgetek™ 3D/LDS solutions in Asia. Jennifer Huang Senior Manager, Marketing Communications Asia Avient Corporation +86 21-6028-4888 jennifer.huang@avient.com Company Officers

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 Company Officers