AVNT-2022.03.31-News Release - Dyneema 1 NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces Agreement to Acquire DSM Protective Materials (Dyneema®) and Plans to Explore Sale of Distribution CLEVELAND – April 20, 2022 – Avient Corporation (NYSE: AVNT), a leading provider of specialized and sustainable material solutions, today announced that it has entered into an agreement with Royal DSM (“DSM”) to purchase the DSM Protective Materials business (including the Dyneema® brand) (the “Dyneema business”). For 10 years, we have been building our advanced composites platform by focusing on high-performance materials for applications where failure is not an option. The foundation of the protective materials business of DSM is the renowned technology and globally admired brand of Dyneema®, the World’s Strongest Fiber™.

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. In particular, these include statements relating to future actions; prospective changes in raw material costs, product pricing or product demand; future performance; estimated capital expenditures; results of current and anticipated market conditions and market strategies; sales efforts; expenses; the outcome of contingencies such as legal proceedings and environmental liabilities; and financial results. Simply put… We solve customers’ most pressing material science challenges.

Renewable, plant-based raw materials, have been shown to offer significantly lower product carbon footprint values than typical petroleum-based feedstock. The Nymax BIO portfolio includes six grades that offer lower warpage plus excellent surface appearance and colorability compared with traditional PA66 glass fiber-filled materials. Processing conditions can cause material properties to shift from the values stated in the information.

This excludes the impact of EPS accretion from the Dyneema acquisition.” 2 The company is providing its first quarter results in anticipation of discussions with investors, following the signing of an agreement with Royal DSM (“DSM”) to purchase the DSM Protective Materials business (including the Dyneema® brand) (“Dyneema”). 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. They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements.

Glucose Monitoring App Snapshot draft M E D I C A L D E V I C E O E M C O N T I N U O U S G L U C O S E M O N I T O R I N G S Y S T E M • Adapt to strict processing requirements of a secondary operation put in place to manufacture a new device model • Meet material size and thickness requirements while achieving desired color target • Overcome material unpredictability and sensitivity to heat, light and moisture • Minimize impact of supply chain instability and changes • Offered support for processing under low pressure conditions and at every stage of manufacturing • Performed extensive R&D work to consistently deliver the customer’s color target of a hard-to-achieve light gray • Effectively addressed all material challenges and sensitivities • Provided regular ‘summaries of understanding’ to keep up with changing forecasts and ordering patterns Mevopur™ Pre-color Formulation KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION PROCESSING + MATERIAL PERFORMANCE LEARN MORE © 2022, Avient Corporation, All Rights Reserved.

PEDERSON Senior Vice President, President of Specialty Engineered Materials Chris Pederson is senior vice president, president, Specialty Engineered Materials, for Avient Corporation, a premier provider of specialized and sustainable material solutions and services. He later joined Cytec, where he led composite product development for the Americas and Asia Pacific regions, served as vice president of R&D, and ultimately was promoted to vice president of Cytec’s global Aerospace Engineered Materials business, which included P&L responsibility.

HOLGER KRONIMUS Vice President, Europe General Manager, Engineered Materials Europe Holger Kronimus is Vice President, Europe, and General Manager, Specialty Engineered Materials Europe at Avient Corporation, an innovator of materials solutions that help customers succeed while enabling a sustainable world. Kronimus joined Avient in March 1999, and in addition to leading the company’s engineered materials business in Europe and India, also serves as Avient’s legal representative in the region, responsible for building and maintaining relationships with local governments and associations.

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. Pro Forma Financial Information The Company acquired Avient Protective Materials (“Dyneema”) on September 1, 2022 (the “Acquisition Date”) and sold the Distribution segment on November 1, 2022. To provide comparable results, the company references “pro forma” financial metrics, which include the business results of Avient Protective Materials for periods prior to the Acquisition Date, as if the transaction occurred on January 1, 2021 and reflect Distribution as a discontinued operation.

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. Pro Forma Financial Information The Company acquired Avient Protective Materials (“Dyneema”) on September 1, 2022 (the “Acquisition Date”) and sold the Distribution segment on November 1, 2022. To provide comparable results, the company references “pro forma” financial metrics, which include the business results of Avient Protective Materials for periods prior to the Acquisition Date, as if the transaction occurred on January 1, 2021 and reflect Distribution as a discontinued operation.

Vinod Purayath is Senior Vice President and Chief Technology Officer of Avient Corporation, a premier provider of specialized and sustainable material solutions and services. Purayath has achieved global success in materials development, with a particular emphasis on semiconductor and digital memory applications. Purayath later joined Applied Materials, as the technology leader for its new Selective Removal Products business, and most recently served as Vice President, Process Technology for SunRise Memory.