The CEI is the United States’ premier report on corporate policies and practices relating to LGBTQ workplace equality, administered by the Human Rights Campaign Foundation. Reporting CDP Climate Change Report

yesterday issued its first Sustainability Report.  Available at www.avient.com/sustainability, the report captures performance and progress in In addition, operating income before the effect of special items is a component of PolyOne annual and long-term employee incentive plans and is used in debt covenant computations.

Members of the Committee will be appointed by the Board each year following the annual meeting of shareholders Conduct an annual evaluation of the Committee’s performance. The Committee will regularly report the Committee’s activities and any recommendations to the Board in such manner and at such times as the Committee or the Board deems appropriate

I have reviewed this Annual Report on Form 10-K of PolyOne Corporation; 2. I have reviewed this Annual Report on Form 10-K of PolyOne Corporation; 2. The meeting notice and proxy materials were mailed to shareholders with this annual report.

ANNUAL REPORT 2023ANNUAL REPORT 2023ANNUAL REPORT 2023 In this annual report, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. This attestation report is set forth on page 31 of this Annual Report on Form 10-K and is incorporated by reference into this Item 9A. The meeting notice and proxy materials were made available to shareholders with this annual report.

I have reviewed this Annual Report on Form 10-K of PolyOne Corporation; 2. I have reviewed this Annual Report on Form 10-K of PolyOne Corporation; 2. The meeting notice and proxy materials were mailed to shareholders with this annual report.

In this press release, statements that are not reported financial results or other historical information are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the annual and long-term employee incentive plans and is used in debt covenant computations.

Conduct an annual evaluation of the Committee’s performance. 3 Recommendations as to the Board. The Committee will regularly report the Committee’s activities and any recommendations to the Board in such manner and at such times as the Committee or the Board deems appropriate. The Committee will annually review its charter and recommend any changes to the Board of Directors.

NYSE: POL) today reported its full year and fourth quarter results for 2019. of annual revenue, and with run rate synergies will add In addition, operating income before the effect of special items is a component of PolyOne annual and long-term employee incentive plans and is used in debt covenant computations.