Sustainability experts from Avient will be on hand to help address recycling challenges in packaging, drawing on research conducted at Avient’s CycleWorks™ Innovation Center that focuses on mechanical recycling challenges and solutions.   Media contact Nicole DeChant Avient Corporation nicole.dechant@avient.com Company Officers

Avient experts will be on hand to share insights on technologies and services that address recycling challenges. Media contact Nicole DeChant  Avient Corporation  nicole.dechant@avient.com Company Officers

Corporate Governance Guidelines. March 2025 - Final and Approved version.pdf 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.

Name of Corporation Charter Number The articles are hereby amended by the Incorporators. Brown: Please be advised that the office of the Secretary of State has reviewed your pre- clearance request for the Certificate of Amendment for PolyOne Corporation. I have provided all the necessary information to complete the filing process with our office.

Chairman, President and Chief Executive Officer, Senior Vice President and Chief Financial Officer, For the same reasons, the Company is unable to address the probable significance of the unavailable information.

Avient Corporation addresses major trends and challenges in the polymer industry at Chinaplas 2024 with innovative colorants, additives, and services Company Officers

President and Chief Executive Officer of Senior Vice President and Chief Financial Officer of For the same reasons, the Company is unable to address the probable significance of the unavailable information.

President and Chief Executive Officer, Senior Vice President and Chief Financial Officer, For the same reasons, the Company is unable to address the probable significance of the unavailable information.

President and Chief Executive Officer, Senior Vice President and Chief Financial Officer, For the same reasons, the Company is unable to address the probable significance of the unavailable information.

Avient Corporation Chairman, President and Chief Executive Officer, For the same reasons, the Company is unable to address the probable significance of the unavailable information.