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 6028 4888  jennifer.huang@avient.com Company Officers

With head offices in Vienna, Austria, we employ 6,900 employees and operate in over 120 countries. Media contact Nicole DeChant  Avient Corporation  nicole.dechant@avient.com   Company Officers

Avient’s EH&S Management System (EH&S MS) is managed by its Corporate Environmental, Health, Safety and Product Stewardship Department, and degreed technical experts employed in all regions and businesses. We established a comprehensive EH&S MS to systemically identify and address any risks. Discussion of corporate positions related to government regulations and/or policy proposals that address environmental and social factors affecting the industry

Our Transcend colorants help address all of these needs.” Avient Corporation (NYSE: AVNT), with 2021 revenues of $4.8 billion, provides specialized and sustainable material 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, with 2014 revenues of $3.8 billion, is a premier provider of specialized polymer materials, services and solutions. Media contact Michelle Maniscalco Marketing Communications Manager, North America PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com Company Officers

PolyOne Corporation, with 2014 revenues of $3.8 billion, is a premier provider of specialized polymer materials, services and solutions. Media contact Michelle Maniscalco Marketing Communications Manager, North America PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com Company Officers

Improving our capabilities to develop and deliver new tools to help address the growing threat of insecticide resistance is critical if we are to achieve our mission of delivering a toolbox of effective interventions to eradicate malaria. Media contact Michelle Maniscalco Senior Manager, Marketing Communications Avient Corporation michelle.maniscalco@avient.com Company Officers

Our broad portfolio of solutions on display addresses important needs in a wide range of market segments where sustainability and color matter to help build a better tomorrow.” Media contact Nicole DeChant  Avient Corporation  nicole.dechant@avient.com Company Officers

Avient Corporation Corporate Governance Guidelines The Board of Directors (the “Board”) of Avient Corporation (the “Company”) has adopted the following Corporate Governance Guidelines (the “Guidelines”). The office of Chairman of the Board may or may not be an officer position. March 6, 2024 Avient Corporation Corporate Governance Guidelines 1.