The company reported first quarter sales of $826.6 million compared to $829.0 million in the prior year quarter. The question-and-answer session will follow the company’s presentation and prepared remarks. You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. 5 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.

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.

COMPANY CONTACT INFORMATION corporateregulatory@avient.com ENVIRONMENTAL EFFECTS Based on its physical/ chemical properties (insolubility, no vapor pressure), Carbon Black released into the environment will be distributed mainly in soil or sediments.

COMPANY CONTACT INFORMATION corporateregulatory@avient.com ENVIRONMENTAL EFFECTS The substance is a natural mineral.

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.avient.com/contact-us-now

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.

Investor Relations Contact: Media Contact: Media Relations Contacts

Investor Relations Contact: Isaac D. Media Relations Contacts Company Officers

The company adds value to global customers and improves sustainability through formulating materials, such as: Investor Relations Contact: Joe Di Salvo, Vice President, Treasurer and Investor Relations, PolyOne Corporation, +1 440-930-1921, giuseppe.disalvo@avient.com; Media Contact: Kyle G. Investor Contacts

The company will then host a conference call at Investor Relations Contact: Joe Di Salvo, Vice President, Treasurer and Investor Relations, PolyOne Corporation, +1 440-930-1921, giuseppe.disalvo@avient.com; Media Contact: Kyle G. Investor Contacts