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. 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”).

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2 Bribery of Government Officials 2 Commercial Bribery 2 Facilitation Payments and Kickbacks 3 Working with Agents, Distributors and Other Third Parties 3 Due Diligence and Approval Process 3 Red Flags 3 Accounting and Record Keeping Requirements 4 Reporting Possible Violations 4 Avient Ethics Hotline 4 Protection from Retaliation 4 Quick Reference: ABAC DOs and DON’Ts 5 1 Our Global Policy on Anti-Bribery and Anti-Corruption Avient strictly prohibits fraud, bribery, and other corrupt business practices in all of our business operations anywhere in the world. When reporting any concern involving a payment, please include the following information (to the extent you are aware of these details): • The amount and purpose of the payment • The identification and the line of business of the person making the payment • The circumstances under which the payment was made • The identity of any person who knows of the payment Protection from Retaliation Retaliation in any form against an employee who has, in good faith, reported a violation or possible violation of this Policy is strictly prohibited.

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.

Data Protection. In case Buyer is required to disclose the information by virtue of a court order or statutory duty, Buyer shall immediately inform Seller and reasonably cooperate with Seller should it seek to obtain a protective order.

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