by 2025, at a 6.6% CAGR, according to

The Compensation Committee maintained adjusted EPS as the performance measure for the 2023-2025 cash-settled performance unit awards in order to drive improvements in shareholder value. COMPENSATION DISCUSSION AND ANALYSIS 52 PROXY STATEMENT 2024 | Annual Meeting of Shareholders   Performance Period Weighting January 1, 2023 through December 31, 2023 25% January 1, 2024 through December 31, 2024 25% January 1, 2025 through December 31, 2025 25% January 1, 2023 through December 31, 2025 25% The attainment level for the cash-settled performance units will be certified at the end of the total three- year performance period. If the date of the 2025 Annual Meeting is delayed by more than 60 calendar days after the anniversary of the Annual Meeting, then a shareholder’s notice must be delivered to our principal executive offices not later than the close of business on the later of the 90th calendar day prior to the 2025 Annual Meeting or the 10th calendar day following the day on which public announcement of the date of the 2025 Annual Meeting is first made.

Canada and China Regional Strengths • Solutions with Avient’s engineered materials customers • Avient’s distribution channels Segment Cross-selling C O M P L E M E NTA RY T E C H N O LOG I E S A N D C U S TO M ER S D R I V E R E V E N U E S Y N E RG I E S Revenue synergy opportunities in excess of $50MM by 2025 The complementary aspects of our combined businesses are unquestionable. We estimate in excess of $50 million dollars of new application sales by 2025, exclusively generated from the joining of our portfolios and technology teams.

Canada and China Regional Strengths • Solutions with Avient’s engineered materials customers • Avient’s distribution channels Segment Cross-selling C O M P L E M E N TA RY T E C H N O LO G I E S A N D C U S TO M E R S D R I V E R E V E N U E S Y N E RG I E S Revenue synergy opportunities in excess of $50MM by 2025 The complementary aspects of our combined businesses are unquestionable. We estimate in excess of $50 million dollars of new application sales by 2025, exclusively generated from the joining of our portfolios and technology teams.

The Compensation Committee maintained adjusted EPS as the performance measure for the 2023-2025 cash-settled performance unit awards in order to drive improvements in shareholder value. COMPENSATION DISCUSSION AND ANALYSIS 52 PROXY STATEMENT 2024 | Annual Meeting of Shareholders   Performance Period Weighting January 1, 2023 through December 31, 2023 25% January 1, 2024 through December 31, 2024 25% January 1, 2025 through December 31, 2025 25% January 1, 2023 through December 31, 2025 25% The attainment level for the cash-settled performance units will be certified at the end of the total three- year performance period. If the date of the 2025 Annual Meeting is delayed by more than 60 calendar days after the anniversary of the Annual Meeting, then a shareholder’s notice must be delivered to our principal executive offices not later than the close of business on the later of the 90th calendar day prior to the 2025 Annual Meeting or the 10th calendar day following the day on which public announcement of the date of the 2025 Annual Meeting is first made.

Globalization Positions us to ser ve our customers consistently, ever ywhere in the world. These swaps have a combined notional amount of 677.0 million Euros, which were set to mature in May 2025. Globalization Positions us to ser ve our customers consistently, ever ywhere in the world.

Versión: Abril de 2025 Salud y Seguridad Medio Ambiente Social Ética y Gobernanza Sistemas de Gestión

Avient 2025 Proxy Statement Avient 2025 proxy statement

We are Avient. 6 B ET T E R TO G E TH E R : P O LYO NE A N D C L A R I A N T M A S T ER BATC H Key Financial Data (1) 2021E Sales $4.6 - $4.7 billion 2021E EBITDA $580 million 2021E Free Cash Flow $280 million 87% of EBITDA from specialty applications (1) As of July 30, 2021 webcast Synergies ($ millions) Three-Year Estimate Administrative $ 20 Sourcing 30 Operational 25 Total Synergies $ 75 7 C L A R I A N T C O S T S Y N ERG I E S • On-track to realize $45 million of expected synergies in 2021 – up from previous estimate of $35 million • Relentless focus on guiding principles for acquisition integration: safety first, employee collaboration and exceeding customer expectations • Future revenue synergies in excess of $50 million by 2025 are not part of these estimates and represent additional growth over the long term 8 • Barrier technology • Functional additives • Processing aids • Flame retardants • Light-weighting additives Complementary Technologies • Clariant’s approved formulations and certified facilities • Legacy PolyOne’s leading share in distribution channels Healthcare Solutions • Clariant’s position in SE Asia, Latin America, Germany & Italy • Legacy PolyOne’s position in U.S., Canada and China Regional Strengths • Solutions with Avient’s engineered materials customers • Avient’s distribution channels Segment Cross-selling C O M P L E M E NTA RY T E C H N O LOG I E S A N D C U S TO M ER S D R I V E R E V E N U E S Y N E RG I E S Revenue synergy opportunities in excess of $50MM by 2025 The complementary aspects of our combined businesses are unquestionable. We estimate in excess of $50 million dollars of new application sales by 2025, exclusively generated from the joining of our portfolios and technology teams.