We established a comprehensive EH&S MS to systemically identify and address any risks. Regarding physical security, facilities undergo periodic analyses to address potential threats. To ensure mutually beneficial and productive relationships, Avient also asks all suppliers to adhere to our safety procedures and security policies within our manufacturing plants, distribution centers, as well as our sales, regional, or corporate offices.

We established a comprehensive EH&S MS to systemically identify and address any risks. Regarding physical security, facilities undergo periodic analyses to address potential threats. To ensure mutually beneficial and productive relationships, Avient also asks all suppliers to adhere to our safety procedures and security policies within our manufacturing plants, distribution centers, as well as our sales, regional, or corporate offices.

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

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

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

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

PolyOne Corporation (NYSE:POL), 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

About Avient Avient Corporation (NYSE: AVNT), with 2020 pro forma revenues of $3.8 billion, provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Media contact Michelle Maniscalco Senior Manager, Marketing Communications Avient Corporation michelle.maniscalco@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

Avient Corporation (NYSE: AVNT), with expected 2021 revenues of $4.6 to $4.7 billion, provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Media contact Michelle Maniscalco Senior Manager, Marketing Communications Avient Corporation michelle.maniscalco@avient.com  Company Officers