The Corporate Ethics Officer, in coordination with the Legal Department, is responsible for giving advice on interpreting and applying this Policy, supporting training and education, and responding to reported concerns. Under these circumstances, contact the Corporate Ethics Officer (ethics.officer@avient.com) or General Counsel (legal.officer@avient.com) immediately. An independent company receives all website and phone reports received by the Ethics Hotline and reports the information to the Corporate Ethics Officer.

PolyOne Corporation Chairman, President and Chief Executive Officer, PolyOne Corporation

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 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

Avient Corporation Announces Annual Sustainability Report Highlighting Achievements in 2024 Media Contact Nicole DeChant Avient Corporation nicole.dechant@avient.com Company Officers

Caption: Avient Corporation today announced the ISO 13485:2016 certification of its production site in Taoyuan, Taiwan (near Taipei). Media contact Michelle Maniscalco Senior Manager, Marketing Communications Avient Corporation michelle.maniscalco@avient.com Company Officers

TAOYUAN, Greater China – February 15, 2023 – Today, Avient Corporation is excited to announce that its production site in Taoyuan has achieved full compliance with the Global Recycled Standard (GRS) 4.0. Media contact Jennifer Huang  Senior Manager, Marketing Communications Asia  Avient Corporation   +86 21 60284888  jennifer.huang@avient.com  Company Officers

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

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

About PolyOne PolyOne Corporation, with 2016 revenues of $3.3 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