Avient corporation first quarter 2023 results AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) J A N UA RY 2 0 2 4 DISCLAIMER Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995.

Rotary Die v/s Rotary Platen Machines: In some cases, the rotation is built into the machine in the form of a rotary platen on the second half of the press.

Rathbun 44 Senior Vice President, Mergers & Acquisitions João José San Martin Neto 56 Senior Vice President, Chief Human Resource Officer John V. John V. SLOAN Vice President, Treasurer JOHN V.

TPE Injection Molding Injection Molding Range Compression Molding Range Extrusion Range V is co si ty , P a. s Shear Rate, 1/s 10,000 1,000 100 10 Figure 15 illustrates the range of viscosity of GLS overmolding TPEs. TPE Injection Molding Injection Molding Range Compression Molding Range Extrusion Range V is co si ty , P a. s Shear Rate, 1/s 10,000 1,000 100 10 Due to the shear sensitivity of TPEs, 1 1,00010 100 10,000 100,000 their injection molding process is slightly *Measured at 390˚F (200˚C) Figure 15.

Edgetek™ Engineered Polymer Formulations achieved a UL 94 V-0 flammability rating certification for server cabinets

Altice(3) - 4,301(5) 4,301 John V. Altice Former Senior Vice President, President of Designed Structures and Solutions (“DSS”) John V. Patterson, Chairman, President and Chief Executive Officer John V.

Newlin 195,348 124,980(4) 320,328 John V. Newlin Executive Chairman John V. Newlin, Executive Chairman(1) - - 223,430 1,276,548 1,278,853 292,176 3,812,040 1,483,710 285,550 902,608 John V.

Standard formulations conforming to UL 94 V-2, V-0 and 5VA performance ratings are available, with many in the portfolio offering elevated Relative Thermal Index (RTI) ratings.

ANNUAL REPORT 2021 CREATING A WORLD-CLASS, SUSTAINABLE ORGANIZATION A V IE N T C O R P O R A T IO N A N N U A L R E P O R T 2021 CORPORATE OFFICERS ROBERT M. In September 2007, the United States District Court for the Western District of Kentucky (Court) in the case of Westlake Vinyls, Inc. v. AVIENT.COM A V IE N T C O R P O R A T IO N A N N U A L R E P O R T 2021

Rodriguez 48 Senior Vice President, Chief Human Resource Officer John V. John V. SCHUERING Vice President, Global Key Account Management JOHN V.