Inquiries will be answered within a maximum period of ten (10) business days from the date of receipt. Once the information has been received, the maximum resolution period is 15 working days from the day following its receipt. If more time is required, Avient will explain the reasons and inform a new response date, which may not exceed 8 working days in addition to the initial deadline.

PolyOne Corporation Investor Day 2012 CFA Society Cleveland Midwest Investment Conference 2013 PolyOne Investor Presentation November 19, 2013 • 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. EPS: $2.50 Assumptions • Mid single digit revenue CAGR • Operating margins in mid-range of 2015 targets • No global recession • No investment in incremental PP&S capacity • Housing starts at 85% of 50 year norm by 2015 • Remain comfortably below 3X Net Debt / EBITDA Page 10 2012 Rev: $2.9B Adj.

PolyOne Corporation Investor Day 2012 PolyOne Investor Presentation Credit Suisse 26th Annual Chemical and Ag Science Conference September 17th, 2013 • 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. EPS: $2.50 Assumptions • Operating margins in mid-range of 2015 targets • No global recession • No investment in incremental PP&S capacity • Completion of 2-3 midsize accretive acquisitions • Housing starts at 85% of 50 year norm by 2015 • Mid single digit revenue CAGR • Remain comfortably below 3X Net Debt / EBITDA Page 11 2012 Rev: $2.9B Adj.

PolyOne Corporation Investor Day 2012 PolyOne Investor Presentation Credit Suisse Boston Basic Materials Conference June 26, 2013 • 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. EPS: $2.50 Assumptions • Operating margins in mid-range of 2015 targets • No global recession • No investment in incremental PP&S capacity • Completion of 2-3 midsize accretive acquisitions • Housing starts at 85% of 50 year norm by 2015 • Mid single digit revenue CAGR • Remain comfortably below 3X Net Debt / EBITDA Page 12 2012 Rev: $2.9B Adj.

PolyOne Corporation Investor Day 2012 PolyOne Investor Presentation Deutsche Bank 2013 Global Industrials and Basic Materials Conference June 12, 2013 • 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. EPS: $2.50 Assumptions • Operating margins in mid-range of 2015 targets • No global recession • No investment in incremental PP&S capacity • Completion of 2-3 midsize accretive acquisitions • Housing starts at 85% of 50 year norm by 2015 • Mid single digit revenue CAGR • Remain comfortably below 3X Net Debt / EBITDA Page 11 2012 Rev: $2.9B Adj.

Dove non richiesto, se decidi di trasmetterci questo tipo di dati durante il processo di candidatura, ci riserviamo il diritto di eliminarli dai nostri database. 2. In caso tu ci fornisca i dati personali di chi fornisce una referenza o di qualsiasi altra persona, come parte della tua domanda (ad esempio, un contatto di emergenza o i dettagli di un parente prossimo), è tua responsabilità ottenere il consenso da tale persona, prima di fornirci i suoi dati, e informarla del contenuto della presente Informativa. 3. In caso contrario, i tuoi dati personali verranno conservati solo per il periodo necessario a valutare la tua candidatura e come previsto dai termini di prescrizione applicabili e dagli obblighi legali di conservazione dei dati, a seconda dei casi.

Partner, Jones Day (a global law firm) from January 2006 to February 2007. Associate, Jones Day from August 1995 to January 2006. Common collective funds are valued at the net asset value of units held by the fund at year-end.

September 20, 2023 (NYSE: AVNT)Avient Sustainability Day AGENDA WELCOME Bob Patterson INTRODUCTION Jamie Beggs SUSTAINABILITY STRATEGY Walter Ripple SUSTAINABLE SOLUTIONS Michael Garratt, Chris Pederson, Woon Keat Moh SUMMARY Jamie Beggs WRAP UP AND Q+A Bob Patterson Avient Corporation 2 Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995.

This feature also provides for deemed reinvestment of dividend equivalents on amounts attributed to the Company stock fund. None of the agreements contain a single trigger or a modified single trigger for benefits. Sixty days prior to the first anniversary of this date will be January 28, 2023, and 90 days prior to the first anniversary of this date will be December 29, 2022.

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