To meet the FERC requirements, each utility company is required to perform a risk assessment of their systems, identify the most critical assets within the power grid, and then propose and implement a plan to protect them. Using GlasArmor panels, Ballisti-Wall® and Ballisti- Cover® solutions enable utility companies to add a superior level of protection to critical components and meet FERC security requirements within a modular, adaptable construction. 1 https://www.nbcnews.com/news/us-news/three-substations- attacked-washington-state-rcna63214 2 https://www.ferc.gov/sites/default/files/2020-04/E-4_10.pdf © 2023, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 To learn more about Avient’s advanced composite solutions, visit www.avient.com/composites.

Corporate seat Luxemburg Date of deed of incorporation 04-07-2018 Registered in Registre de Commerce et des sociétés Luxemburg, Luxembourg under number B226205 Company Trade name Avient S.à r.l., Netherlands branch Company start date 24-07-2018 Activities SBI-code: 46769 - Wholesale of other intermediary products SBI-code: 46696 - Wholesale of packaging SBI-code: 4941 - Freight transport by road (no removal services) Employees 0 Establishment Establishment number 000040405362 Trade name Avient S.à r.l., Netherlands branch Visiting address Uranusweg 3, 8938AJ Leeuwarden Date of incorporation 24-07-2018 Activities SBI-code: 46769 - Wholesale of other intermediary products SBI-code: 46696 - Wholesale of packaging SBI-code: 4941 - Freight transport by road (no removal services) For further information on activities, see Dutch extract.

Avient Corporation’s continued dedication to equal employment opportunity may be re-emphasized and augmented in programs of affirmative action throughout the Company, if and as required by law. It is extremely important that all employees of our Company comply with this policy. You are encouraged to contact your supervisor, your Human Resources representative, or the Corporate Human Resources department if you believe that there has been a violation of this policy, or you can notify the company’s EEO/AA compliance officer at PeopleLink@avient.com.

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. The presentation of these measures may be different from non-GAAP financial measures used by other companies.

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.

VERIFICATION OPINION DECLARATION GREENHOUSE GAS EMISSIONS To: The Stakeholders of Avient Corporation Apex Companies, LLC (Apex) was engaged to conduct an independent verification of the greenhouse gas (GHG) emissions reported by Avient Corporation (Avient) for the period stated below. Armstrong-Friberg, Lead Verifier Scott Johnston, Technical Reviewer ESG Program Manager Principal Consultant Apex Companies, LLC. Apex Companies, LLC.

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. Innovation is the lifeblood of a specialty company.

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.

The question and answer session will follow the company’s presentation and prepared remarks. 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.

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. For the same reasons, the Company is unable to address the probable significance of the unavailable information.