PolyOne Expands Specialty Offerings with Acquisition of Magenta Master Fibers Specialty acquisition broadens solutions portfolio of colorant and additives technologies for fiber applications - Extends PolyOne's existing rea PolyOne Associates Raise Over $1.5 Million for United Way

Caption: PolyOne invites product designers and engineers to collaborate on material development, product design, processing, and testing in their thermoplastic composite innovation cell in Englewood, CO. Avient Announces Second Quarter 2025 Results... Avient Announces Quarterly Dividend...

Material selection doesn't have to be a tricky balancing act between over-engineering and under-performance. Catheter Materials & Medical Tubing Engineered Polymer Formulations

PolyOne Investor Presentation November 2017 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. The non-GAAP financial measures include: adjusted EPS, Specialty platform operating income percentage, adjusted operating income, and return on invested capital.  PolyOne’s chief operating decision maker uses these financial measures to monitor and evaluate the ongoing performance of the Company and each business segment and to allocate resources. Senior management believes these measures are useful to investors because they allow for comparison to PolyOne's performance in prior periods without the effect of items that, by their nature, tend to obscure PolyOne's operating results due to the potential variability across periods based on timing, frequency and magnitude.

Fiber-Line™ Engineered Fibers Engineered Fiber Solutions Whether you are looking for added strength, reduction in weight or diameter, or replacement for metal, Avient’s Fiber-Line™ Engineered Fiber Solutions are designed to meet the most specific and demanding requirements.

EMBRACE, formed in 2021, has been hard at work to enhance racially diverse talent at Avient. We look forward to expanding our racial representation by recruiting more diverse talent to Avient and ensuring our associates of different heritage feel understood, accepted and valued. Ambassador program deployed to support newly hired diverse talent

Avient Resources Discover the precision engineering behind high-reliability aircraft cable solutions in this informative video by Avient Fiber-Line™ Specialty Engineered Thermoplastic Tapes

About Avient Our purpose at Avient Corporation (NYSE: AVNT) is to be an innovator of materials solutions that help our customers succeed, while enabling a sustainable world. Our expanding portfolio of offerings includes colorants, advanced composites, functional additives, engineered materials, and Dyneema®, the world’s strongest fiber™.

Design and Manufacture of Specialty Engineered Thermoplastics 65536-56176Certificate No: Page 7 of 53 ABS Quality Evaluations ABS Quality Evaluations, Inc. 1701 City Plaza Drive, Spring, TX 77389, U.S.A. Dominic Townsend, President Effective Date: 22 March 2024 Expiration Date: 28 February 2025 Revision Date: 22 March 2024 Avient Corporation - Esenyurt, Turkey Orhan Gazi Mahallesi 1683 Sokak No:6 34538 Esenyurt Istanbul Turkey Design and Manufacture of Specialty Engineered Thermoplastics 65536-116867Certificate No: Page 16 of 53 ABS Quality Evaluations ABS Quality Evaluations, Inc. 1701 City Plaza Drive, Spring, TX 77389, U.S.A. Dominic Townsend, President Effective Date: 22 March 2024 Expiration Date: 28 February 2025 Revision Date: 22 March 2024 NEU Specialty Engineered Materials, LLC 15 Corporate Drive North Haven, CT 06473 U.S.A.

Nicolas served as Rockwell Automationʼs Senior Vice President, Operations and Engineering Services; from 2018 to 2019, he served as Vice President, Global Supply Chain; and from 2015 to 2018, he served as Vice President, Strategic Sourcing and Supply Management. Patterson Chairman, President and Chief Executive Officer of Avient. Wulfsohn was President and Chief Executive Officer of Carpenter Technology Corporation (“Carpenter”), a manufacturer of stainless steel, titanium and other specialty metals and engineered products, and was a director of Carpenter from 2009 until 2014.