Pet tech companies are creating ‘wellbeing ecosystems’ which allow pet owners oversight of everything from their pet’s activity levels and the quality of their sleep, to when they get fed, how much they eat, and when they enter and leave the house. © 2022, Avient Corporation www.avient.com https://www.polyone.com/contact-us-now

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Dominic Townsend, President Effective Date: 22 March 2024 Expiration Date: 28 February 2025 Revision Date: 22 March 2024 Avient Corporation - Kalol, India Kalol Works, Shed No.18-22 GIDC Estate Kalol, Gujarat 389330 India Design & Manufacture of Color, Additive Concentrate & Specialty Compounds 65536-116869Certificate No: Page 18 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 - Rania, India Survey No.344/1-2-3 Rania Works, Sakarda Bhadarwa Road Rania, Gujarat 391780 India Design & Manufacture of Color, Additive Concentrate & Specialty Compounds 65536-117322Certificate No: Page 40 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 - Vashere, India Renaissance Industrial & Warehousing Complex Unit No.

The company has priced Investor Relations Contact: Giuseppe (Joe) Di Salvo, Vice President, Treasurer and Investor Relations, Avient Corporation, +1 440-930-1921, giuseppe.disalvo@avient.com; Media Contact: Kyle G. Investor Contacts

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Director since: 2023 Age: 57 Current Public Company Directorships: • Constellation Energy Corporation Former Directorships: • 3M India Current University Directorships: • Dean's Advisory Board, College of Science and Engineering, University of Minnesota Former University Directorships: • St. To obtain comparability based on company size, the Consultant’s analysis either referenced a specific sample of comparably-sized companies or calibrated the pay of a broad sample of companies against company size. Garratt retired from the Company.

The board demands honesty and integrity from each of the company's officers and employees and from each member of the board. Avient Company Officers Investor Contacts

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Media Contact Crandall Turner Avient Corporation crandall.turner@avient.com  Media Relations Contacts Company Officers