Ripple is responsible for developing and leading the company’s global sustainability strategy. Ripple began his current role in January 2019, leading corporate initiatives that help the company achieve critical sustainability and performance goals. Avient’s sustainability efforts have been acknowledged by third party sustainability recognitions such as Newsweek’s America’s Most Responsible Companies, Barron’s 100 Most Sustainable Companies, and USA Today’s Climate Leader awards.

Ripple is responsible for developing and leading the company’s global sustainability strategy. Ripple began his current role in January 2019, leading corporate initiatives that help the company achieve critical sustainability and performance goals. Avient’s sustainability efforts have been acknowledged by third party sustainability recognitions such as Newsweek’s America’s Most Responsible Companies, Barron’s 100 Most Sustainable Companies, and USA Today’s Climate Leader awards.

Garratt joined Avient in 2013 from Marmon Utility, a Berkshire Hathaway company, where he served as president. Garratt’s chemical career began with The Dow Chemical Company, where he served in commercial and marketing roles in Canada and the United States.

She previously served as senior vice president and deputy chief legal officer, global operations at Eaton Corporation, a power management company. Sanders spent over 20 years at 3M Company with various roles of increasing responsibility, culminating as senior vice president and deputy general counsel supporting global business operations for all segments and manufacturing operations.

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.

As the company disclosed in December, the Commenting on the company's outlook, Mr. Investor Contacts

Investor Relations Contact: Eric R. Media Relations Contacts Company Officers

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. ASHISH KHANDPUR PRESIDENT & CEO 7 8 PORTFOLIO TRANSFORMATION 8 46% 66% 87% 100% 0% 20% 40% 60% 80% 100% 2005 2010 2015 2020 2023 % o f A dj us te d EB IT D A Commodity JVs Distribution Performance Products & Solutions Specialty Businesses Adjusted EBITDA from Specialty Applications SUSTAINABILITY AS A GROWTH DRIVER 9 LONG-TERM REVENUE GROWTH DRIVERS Sustainable Solutions Composites, Healthcare, Asia / LATAM Overlap Other 60%+ Key Growth Drivers Total Company Revenue Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Composites 8–10% Healthcare 8–10% Asia / LATAM 5% Other 0–2% Avient 6% END MARKET OBSERVATIONS (% OF COMPANY SALES) ENERGY DEFENSE TELECOMMUNICATIONS HEALTHCARE 10 TRANSPORTATION INDUSTRIAL BUILDING & CONSTRUCTION 9% CONSUMER PACKAGING 23% 11 REGIONAL OBSERVATIONS (% OF COMPANY SALES) 11 Q 4 2023 RE S U LT S Q4 2023 PERFORMANCE VS. The presentation of these measures may be different from non-GAAP financial measures used by other companies.

Drying non-halogenated materials is suggested. 2 hours @ 100 (38) Moisture Range (%) Not required

Contact us to discuss the additive solution most adapted to your healthcare product. For more detailed information on Mevopur uses and restrictions see www.avient.com/healthcare-use-limitations-mevopur-products or contact your Avient sales representative. 1.844.4AVIENT www.avient.com