AVNT-2022.03.31-News Release 1 NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces First Quarter 2022 Results in Connection with Announcement to Acquire DSM Protective Materials (Dyneema®) • First quarter sales grew to $1.3 billion, an 11% increase over the prior year • GAAP EPS increased to $0.91 from $0.86 in the prior year first quarter • Adjusted EPS increased 11% to $0.99 compared to $0.89 in the prior year first quarter, exceeding first quarter guidance of $0.95 • Second quarter adjusted EPS guidance of $0.92 introduced with full year adjusted EPS expectation maintained at $3.50 (excluding the impact of the acquisition) • Full year free cash flow now expected to approximate $285 million, an increase of $35 million from prior estimates CLEVELAND – April 20, 2022 – Avient Corporation (NYSE: AVNT), a leading provider of specialized and sustainable material solutions, today announced its first quarter 2022 results. About Avient Avient Corporation (NYSE: AVNT), with 2021 revenues of $4.8 billion, provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise.

Investor Day POLYONE I N V E S T O R P R E S E N T A T I O N M A R C H 2 0 1 8 FORWARD LOOKING STATEMENTS PolyOne Corporation 2 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. We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise. Material & Color Expertise Manufacturing Expertise 3 to 14 industrial designers $0 to $7M new business revenue $4M to $40M opportunities identified LSS CUSTOMER FIRST PolyOne Corporation 15 Customer Projects Cumulative LSS Projects Enables sales growth by building more intimate customer relationships, giving us insight to customers’ needs, with a service that is not easily replicated 2 85 PolyOne Corporation 16 W H Y I N V E S T I N P O L Y O N E ?

In 2023, Avient collected sustainable assessments for 70% of our total direct spend for sourcing. Avient is committed to continue partnerships with suppliers who align with the following policies: The template also facilitates the identification of new smelters and refiners to potentially undergo an audit via the RMI Conflict–Free Smelter program.

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PolyOne S.à r.l., Avient Luxembourg S.à r.l., 19 Route de Bastogne Avient’s Singapore Production Facility Receives ISCC PLUS Certification for Bio-Derived Materials... More News

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How efficiently can you specify, trial and implement a new color? HELPING YOU WITH LIQUID COLOR There are many important technical factors to consider when implementing new technologies into new or existing injection molding and extrusion processes. To find your nearest ColorMatrix facility, go to avient.com.

How efficiently can you specify, trial and implement a new color? HELPING YOU WITH LIQUID COLOR There are many important technical factors to consider when implementing new technologies into new or existing injection molding and extrusion processes. To find your nearest ColorMatrix facility, go to avient.com.

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As an intermediate supplier, Avient’s manufacturing facilities are not required to register with nor be directly held to the FDA’s specific good manufacturing practice requirements. Modeled after FDA’s GMP requirements, these internal procedures include internal audit/reviews of all Avient’s manufacturing facilities involved in making products entering into food and/or drug markets including these elements: Avient currently has twenty-three facilities globally certified to the Corporation’s GMP program and two facilities certified to "ISO 13485, Medical Device - Quality Management Systems - Requirements for Regulatory Purposes."