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

CLEVELAND – October 18, 2021 – Avient Corporation today announced new Gravi-Tech™ density-modified thermoplastics that enable advanced metal plating surface treatments to deliver both the look and feel of metal in premium packaging applications.  Media contact Michelle Maniscalco Senior Manager, Marketing Communications Avient Corporation 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 Jennifer Huang  Senior Manager, Marketing Communications Asia  Avient Corporation   +86 21 60284888  jennifer.huang@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

About Avient  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 Jennifer Huang Avient Corporation jennifer.huang@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 has expanded its LubriOne™ portfolio to include a range of innovative new internally lubricated polymer formulations produced without PTFE lubricants. Avient Corporation provides specialized and sustainable materials solutions that transform customer challenges into opportunities, bringing new products to life for a better world. 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

PolyOne Corporation (NYSE: POL), with 2018 revenues of $3.5 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

LUXEMBOURG – November 8, 2021 – Avient Corporation, a premier provider of specialized and sustainable material solutions and services, today launches new ECCOH™ grades for telecom and industrial cable manufacturers. Media contact Michelle Maniscalco Senior Manager, Marketing Communications Avient Corporation michelle.maniscalco@avient.com Company Officers