Revised: December 20, 2024 AVIENT CORPORATION Securities Trading Policy 1. Because this rule is complex, the Company recommends that you work with a broker and be sure you fully understand the limitations and conditions of the rule before you establish a trading plan. The policy does apply, however, to any sale of stock as part of a broker-assisted cashless exercise of an option, or any other market sale for the purpose of generating the cash needed to pay the exercise price of an option.

We understand that exhilarating your customers’ experience is what sets you apart from the competition. Let’s not keep them waiting. 1.844.4AVIENT www.avient.com Copyright © 2023, Avient Corporation. Avient makes no warranties or guarantees respecting suitability of either Avient’s products or the information for your process or end-use application.

Patterson, Chairman, President, and Chief Executive Officer, Avient Corporation. Beggs, Senior Vice President and Chief Financial Officer, Avient Corporation. To access Avient’s news library online, please visit www.avient.com/news. https://www.avient.com/investors/ https://edge.media-server.com/mmc/p/ky9b3iov https://www.avient.com/investors/ https://register.vevent.com/register/BIa7fc29ba31db4eec88eca2de2a3faa90 https://www.avient.com/investors/events-presentations https://www.avient.com/news-events 4 About Avient Avient Corporation (NYSE: AVNT) provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world.

Ashish Khandpur, President and Chief Executive Officer, Avient Corporation. Webcast Details Avient will host a webcast on Tuesday, May 7, 2024 at 8:00 a.m. About Avient Avient Corporation (NYSE: AVNT) provides specialized and sustainable materials solutions that transform customer challenges into opportunities, bringing new products to life for a better world.

Senior management uses gross margin before special items and operating income before special items to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and how it may serve as a basis for future performance.

Silicone’s excellent resistance to staining, however, comes with some trade offs - limited design freedom, long lead times and supply chain challenges. Avient makes no warranties or guarantees respecting suitability of either Avient’s products or the information for your process or end-use application. Avient makes no warranties or guarantees respecting suitability of either Avient’s products or the information for your process or end-use application.

Until now, silicone was the only proven material that was resistant to staining, but silicone produces a long list of challenges to phone case brands: lengthy lead times, supply chain issues, and manufacturing complexities. Copyright © 2020, Avient Corporation. Copyright © 2020, Avient Corporation.

© 2021, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 To learn more about OnFlex™ S HF, contact Avient at +1.844.4AVIENT (1.844.428.4368) or visit us at avient.com. THE CHALLENGE Schneider-Electric NB (Strömfors), a Nordic-based producer of electrical parts recently switched to a non-halogenated gasket (seal) material from Avient in boxes and enclosures for household electrical installations. Avient determined the TPE would perform satisfactorily at an 85 Shore A hardness level.

We understand how important user interaction can be. Avient makes no warranties or guarantees respecting suitability of either Avient’s products or the information for your process or end-use application. AVIENT MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, either with respect to the information or products reflected by the information.

If you need to contact Avient directly, please visit our list of global facilities. Challenge Accepted