The Company plans to host an Investor Day in 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

Media Contact Jennifer Huang Senior Manager, Marketing Communications Asia +86 21 6028 4888 jennifer.huang@avient.com Media Relations Contacts Company Officers

Avient’s chief operating decision maker uses these financial measures to monitor and evaluate the ongoing performance of the Company and each business segment and to allocate resources. Each of such adjustments has not yet occurred, are out of the Company's control and/or cannot be reasonably predicted. For the same reasons, the Company is unable to address the probable significance of the unavailable information.

Specific grades are available to meet food contact requirements and also as nucleating additives for physical foaming agents. EXCELITE VS POWDER • Enables a greater level of density control, through consistent distribution in the polymer • Simplifies and optimizes resin compounding capabilities (PVC dry blends) • Enables greater control over foaming and expands processing window when re-introducing regrind • Clean and highly accurate dosing process, with fewer of the health and safety concerns that can become apparent with powder CFAs EXCELITE VS PELLET • Being significantly more concentrated, Excelite additive enables lower total cost to foam • Can achieve lower density, less carrier influence • Finer and tighter cell structure through better additive distribution • Improved linear consistency of cell structure as ColorMatrix pumps continually meter output, giving greater stability over material dosing • Improved plant working capital as lower let down ratios means less material is consumed and reduces inventory holdings TECHNICAL SUPPORT • Avient has a market leading service team which understands foaming processes, we assist customers to deliver performance and production efficiencies with Excelite™ technology • Please contact your local Avient representative for additional information on our line of foaming additives www.avient.com Copyright © 2020, Avient Corporation.

Contact your FIBER-LINE® representative for exact product details which conform to your specific requirements. Contact us today for small order quantity orders.

Contact us for even more ideas on how we can help you reach your current and future sustainability goals. Contact your Avient sales representative for more information.

ECO-CONSCIOUS FLEXIBLE FOAM GUN GRIP SLEEVES HIT THE MARK ECO-CONSCIOUS PLASTISOLS IMPROVE THE FIREARM EXPERIENCE AND MEET GUIDELINES THE CHALLENGE EZR Sport® is an American company specializing in grips for industrial & military manufacturers since 1964. In creating the EZR Gauntlet® System, the company aims to provide custom-fit gun grip sleeves that improve performance and confidence when handling a firearm. THE IMPACT By using Avient’s CORE formulation combined with the proprietary manufacturing process from EZR Sport, the companies created an exceptional foam cell structure, providing excellent shock absorption with a cushioning effect for steady hand placement.

Contact Avient for more information. Reference to them does not indicate any affiliation with or endorsement by them. 1 surface sanded with 220 grit scuff prep 2 surface primed with 459T For more information on installation, adhesives, and fasteners for specific applications, please contact Avient. To learn more about our advanced composite solutions, contact Avient at 1.844.4AVIENT or visit www.avient.com.

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. To provide comparable results, the company references “pro forma” financial metrics, which include the business results of Avient Protective Materials for periods prior to the Acquisition Date, as if the transaction occurred on January 1, 2021 and reflect Distribution as a discontinued operation. The presentation of these measures may be different from non-GAAP financial measures used by other companies.

Purayath joined Avient in 2021to lead the development of emerging, next-generation and sustainable technologies globally for the company. At SanDisk Corporation, he held technical and engineering leadership positions over an eight-year period, building and leading a global team of engineers, whose success underpinned the growth of the company.