PolyOne Corporation, with 2013 revenues of $3.8 billion, is a premier provider of specialized polymer materials, services and solutions. Media contact Matt Defosse Marketing Communications Manager, Europe PolyOne Corporation +49 6407-907-0386 matt.defosse@avient.com Company Officers

CLEVELAND – September 16, 2022 – Avient Corporation today announced it will feature Hammerhead™ Marine Composite Panels at the upcoming International Boat Builders’ Exhibition & Conference (IBEX). 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 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

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

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

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

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