Commenting on the company's outlook, Mr. Investor Relations Contact: Eric R. Investor Contacts

Investor Relations Contact: Isaac D. Media Relations Contacts Company Officers

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reporting  companies  that   manufacture  products  (or  have  others  manufacture  products)  that  contain  3TG  metals  or  their  derivatives   (tantalum,  tin,  tungsten  and  gold)  that  are  necessary  to  product  functionality  or  production  are  required  to  assess   their  supply  chains  and  report  to  the  SEC  on  whether  those  materials  are  sourced  from  the  Democratic  Republic  of   Congo  and  adjoining  countries.       As an American Chemistry Council ResponsibleCare® Company and a founding member of the Alliance to End Plastic Waste, we are further committed through our landmark No Surprises PledgeSM and our Sustainability Promise.

12950 Worldgate Drive, Suite 800, Herndon, VA 20170-6007 USA A Member of the BSI Group of Companies. Americas Headquarters: BSI Group America Inc., 12950 Worldgate Drive, Suite 800, Herndon, VA 20170-6007 USA A Member of the BSI Group of Companies.

THE CHALLENGE Rolatube, an innovative company with a fresh approach to product design, is the world’s only bistable, rollable composite manufacturer. The thermoplastic polymer base resin used also enables recyclability to support the company’s sustainability goals.

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.

ACTIVE INGREDIENTS RESISTANCE RATING Clorox® Disinfecting Wipes 5813-79 Quaternary ammonium +++++ +++++ +++++ ++ +++ ++++ Formula 409® Heavy Duty Degreaser N/A Lauramine oxide, ethanolamine +++++ +++++ +++++ + ++ +++ Lysol® All-Purpose Cleaner 777-66 Quaternary ammonium +++++ +++++ +++++ + + ++ $$$ $$$ $$$$ $ $$$ $ MATERIAL COMPARISON WITH COMMON CONSUMER DISINFECTANTS P AB S P PE T P PB T E 90 0 CR E 90 0 H I C R E 92 0 C RCRITERIA FOR RESISTANCE RATING + strength and elongation at yield retention between 90-110% + strength and elongation at yield retention between 75-125% + no statistically significant reduction in elongation at break (p < 0.05) + visual observation score of 4 or better (minor/no crazing, no cracks) + samples survived disinfectant exposure in strain jig Lysol® is a trademark of Reckitt Benckiser LLC Formula 409® is a trademark of The Clorox Company Clorox® is a trademark of The Clorox Company An independent, A2LA-accredited lab tested the following polymers with various disinfectants to help customers choose the material suitable for their specific application requirements.

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.