Total number of shares previously listed in the Articles or other Amendments with the Ohio Secretary of State: With the submission of this amendment, NEW total number of shares: Print Name By (if applicable) Signature Print Name By (if applicable) Signature By signing and submitting this form to the Ohio Secretary of State, the undersigned hereby certifies that he or she has the requisite authority to execute this document. James S T A T E OF O H I O C E R T I F I C A T E Ohio Secretary of State, Frank LaRose 4463782 It is hereby certified that the Secretary of State of Ohio has custody of the business records for and, that said business records show the filing and recording of: AVIENT CORPORATION United States of America State of Ohio Office of the Secretary of State Witness my hand and the seal of the Secretary of State at Columbus, Ohio this 23rd day of April, A.D. 2020. 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.”

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avient ATM/ CASH MACHINE T R A Y S T R U C T U R E • Excellent stiffness & rigidity • Anti-static, frictional note speed • Excellent dimensional stability • Flame resistance • Service life durability • Provided a solution with permanent antistatic properties • Excellent wear and friction resistance, enhancing durability • Additional performance characteristics of flame resistance and low COF Stat-Tech™ PC custom formulations KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION ESD WITH EXCELLENT STIFFNESS & FR LEARN MORE Copyright © 2023, Avient Corporation.

Slide 1 PolyOne Corporation Page 1 PolyOne Investor Presentation Goldman Sachs 2014 US Emerging / SMID Cap Growth Conference New York, NY November 20, 2014 PolyOne Corporation Page 2 Forward-Looking Statements  In this presentation, 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. They use words such as “will,” “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “believe,” and other words and terms of similar meaning in connection with any discussion of future operating or financial performance and/or sales ��PolyOne Investor Presentation�Goldman Sachs 2014 US Emerging / SMID Cap Growth Conference�New York, NY�November 20, 2014�� Forward-Looking Statements Use of Non-GAAP Measures PolyOne Commodity to Specialty Transformation PolyOne�At A Glance Mix Shift Highlights Specialty Transformation Confirmation of Our Strategy Strategy and Execution Drive Results Proof of Performance & 2015 Goals 32% Adjusted EPS CAGR from 2011 Innovation Drives Earnings Growth A Rich Pipeline of Opportunity Megatrends Aligned with Key End Markets Debt Maturities & Pension Funding – 9/30/14 Free Cash Flow and Strong Balance Sheet �Fund Investment / Shareholder Return PolyOne Core Values Why Invest In PolyOne?

Edison, New Jersey 4. Lockport, New York 38. Christopher Largent – Inside Sales Representative.

Avient Announces Quarterly Dividend... Avient Board of Directors Appoints Ashish K. Avient Announces First Quarter 2025 Results...

They use words such as "will," "anticipate," "estimate," "expect," "project," "intend," "plan," "believe," and other words and terms of similar meaning in connection with any discussion of future operating or financial condition, performance and/or sales. news library online, please go to www.polyone.com/news  SEARCH INVESTOR NEWS

news library online, please visit www.polyone.com/news. Sales SEARCH INVESTOR NEWS

The manufacturer began working with Avient to find a thermoplastic elastomer (TPE) solution to meet its dual requirements. Avient gathered detailed data from this customer’s production facility in Mexico and helped them calculate and compare the costs of the two solutions. The manufacturer expects to save more than $55,000 per year, achieving ROI for the new solution within 12 months.

The manufacturer began working with Avient to find a thermoplastic elastomer (TPE) solution to meet its dual requirements. Avient gathered detailed data from this customer’s production facility in Mexico and helped them calculate and compare the costs of the two solutions. The manufacturer expects to save more than $55,000 per year, achieving ROI for the new solution within 12 months.