Investor contact: Eric Swanson Director, Investor Relations PolyOne Corporation +1 440-930-1018 eric.swanson@avient.com Media Relations Contacts Company Officers

If you have any questions, please feel free to contact Helen Devine (614) 644-8977. Sincerely, Helen Devine Helen Devine Certified Paralegal hdevine@OhioSOS.gov DOC ID ----> 202018203934 Change to the Name of the Company; Articles of Incorporation WHEREAS, the Board of Directors (the “Board”) of PolyOne Corporation, an Ohio corporation (the “Company”), deems it to be advisable and in the best interest of the Company to change its corporate name; and WHEREAS, the Board deems it to be advisable and in the best interest of the Company to amend the Company’s Articles of Incorporation, as amended, to reflect the Company’s new name. NOW, THEREFORE, BE IT RESOLVED, that, effective as of the time and date that the applicable certificate is accepted for filing by the Ohio Secretary of State (the “Effective Time”), the name of the Company shall be changed from “PolyOne Corporation” to “Avient Corporation.”

Leaders at our global facilities are in contact with local community leadership such as police and fire, labor safety organizations, local affiliates of global environmental regulatory agencies, local officials and/or trade unions and works councils. Our disclosures are located at: https://www.avient.com/company/policies-and-governance/ca-transparency-act-disclosure https://www.avient.com/company/policies-and-governance/europe-modern-slavery-and-human-trafficking- statement We reinforce Our Commitment to human rights, as set forth above, throughout our organization by incorporating and reflecting these principles in organizational policies, training programs, and our governance management framework. https://www.avient.com/company/policies-and-governance/ca-transparency-act-disclosure https://www.avient.com/company/policies-and-governance/europe-modern-slavery-and-human-trafficking-statement https://www.avient.com/company/policies-and-governance/europe-modern-slavery-and-human-trafficking-statement https://www.avient.com/sites/default/files/2020-10/supplier-code-of-conduct.pdf

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Investor contact: Isaac D. Media contact: Kyle G. Media Relations Contacts

The company adds value to global customers and improves sustainability through formulating materials, such as: Investor Relations Contact - Joe Di Salvo, Vice President, Treasurer and Investor Relations, PolyOne Corporation, +1 440-930-1921, giuseppe.disalvo@avient.com; Media Contact - Kyle G. Investor Contacts

The event will provide participants the opportunity to hear company insights and ask questions on areas of importance to investors, including execution of the company's four-pillar strategy, innovation pipeline, M&A opportunities and integration, and capital allocation priorities.  Investor Relations Contact: Eric R. Investor Contacts

Media Contact: Media Relations Contacts Company Officers

Media contact: Kyle Rose Director, Corporate Communications PolyOne Corporation +1 440-930-3162 kyle.rose@avient.com Media Relations Contacts Company Officers

Investor Relations Contact: Isaac D. Media Relations Contacts Company Officers