Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. In particular, these include statements relating to future actions; prospective changes in raw material costs, product pricing or product demand; future performance; estimated capital expenditures; results of current and anticipated market conditions and market strategies; sales efforts; expenses; the outcome of contingencies such as legal proceedings and environmental liabilities; and financial results. Pro Forma Financial Information The Company acquired Avient Protective Materials (“Dyneema”) on September 1, 2022 (the “Acquisition Date”) and sold the Distribution segment on November 1, 2022.

I’m very pleased that we delivered both, while at the same time setting a new direction and strategy for the Avient of the future. Our strategy is enabled by our focus on four Strategic Drivers: portfolio prioritization, amplify innovation, digital for Letter to Our Shareholders20 24 Annual Report | 2024 1 operational excellence and growth, and leadership, talent and culture for the Avient of the future. Committees: 1, 2 Gregory J.

Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. In particular, these include statements relating to future actions; prospective changes in raw material costs, product pricing or product demand; future performance; estimated capital expenditures; results of current and anticipated market conditions and market strategies; sales efforts; expenses; the outcome of contingencies such as legal proceedings and environmental liabilities; and financial results. Pro Forma Financial Information The Company acquired Avient Protective Materials (“Dyneema”) on September 1, 2022 (the “Acquisition Date”) and sold the Distribution segment on November 1, 2022.

CONTACT INFORMATION Polymer Diagnostics Inc. 33587 Walker Road Avon Lake, Ohio 44012 United States +1 800 438 2335 +1 440 930 1644 fax Polymer Diagnostics Inc. is a contract laboratory with accreditation to ISO/IEC 17025 by the American Association for Laboratory Accreditation (A2LA) for both chemical and mechanical capacities. Delivering Real -World Results Research, development, and optimization of the Freedom® Lumbar Disc will help millions of patients across the world suffering from chronic back pain. Americas U.S. – Avon Lake, Ohio + 1 800 438 2335 Asset No. 76593C M Y K PDICaseStudy.indd REMAY 76593 trim: 8.5in x 11in and 8.25in x 11.6875in bleed: 8.75in x 11.9375in Digital/IAM

It is anticipated that the company will buy back shares through open market purchases or privately negotiated transactions from time to time.   Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. Rose, Vice President, Corporate Communications, PolyOne Corporation, +1 440-930-3162, kyle.rose@avient.com

Forward-looking statements give current expectations or forecasts of future events and are not guarantees of future performance. They use words such as “will,” “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “believe,” and other words and terms of similar meaning in connection with any discussion of future operating or financial performance and/or sales 1) Special items are a non-GAAP financial measure and are used to determine adjusted earnings.

DILUENT PLAS 1 Viscosity Reducer 1 Geon(TM) Black Woven Backing NP

EXCELITE TS-1 AMPMMA HQR 1 DARK BLUE BACK PIECE PE

Cars that don’t parallel park themselves or alert us to a vehicle in our blind spot are so last century—or even last week.

Sensing data acquired by radars, LiDAR and cameras are combined with GPS, V2X and 5G to create very detailed real-time maps so that cars can perform micro path planning, select lanes and avoid obstacles.