The company reported third quarter sales of $815.2 million compared to $753.7 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.

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.

Media contacts: Media Relations Contacts Company Officers

Media contact  Matt Defosse Marketing Communications Manager, Europe PolyOne Corporation +49 6407-907-0386 matt.defosse@avient.com Media Relations Contacts Company Officers

Jefferies and Company, Inc. Avient Company Officers Investor Contacts

Investor Relations Contact: Eric R. Swanson, Director, Investor Relations, PolyOne Corporation, +1 440-930-1018, eric.swanson@avient.com or Media Contact: Kyle G. Investor Contacts

For the second quarter 2019, the company expects adjusted earnings per share of 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

First quarter adjusted EPS1 increased 21% to $0.76 and exceeded the company’s previous guidance of $0.68. The Company uses both GAAP (generally accepted accounting principles) and non-GAAP financial measures. 1 Company’s non-GAAP reconciliation can be found at the press release here.

Director since: 2023 Age: 57 Current Public Company • Constellation Energy • 3M India Current University Directorships: • Dean's Advisory Board, College of Science and Engineering, University of Minnesota Former University Directorships: • St. The Consultant regularly attends Compensation Committee meetings, maintains regular contact with the PROXY STATEMENT 2025 | Annual Meeting of Shareholders 34 Compensation Committee, and interacts with management to gather the data needed to prepare reports for Compensation Committee review. 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.

Director since: 2023 Age: 56 Current Public Company Directorships: • Constellation Energy Corporation • 3M India PROXY STATEMENT 2024 | Annual Meeting of Shareholders 19 Sandra Beach Lin Retired President, Chief Executive Officer and Director of Calisolar, Inc. The Consultant regularly attends Compensation Committee meetings, maintains regular contact with the Compensation Committee, and interacts with management to gather the data needed to prepare reports for Compensation Committee review. 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.