Ingevity Corporation (NYSE:NGVT) today announced that Dave Li, president and CEO, will participate in a fireside chat during the 2026 Water Tower Research Insights Conference on Wednesday, September 23, 2026, at 10:00 a.m. ET.

Ingevity invites investors and interested parties to access the live webcast via the following link: WTR Virtual Insights Conference. A transcript will be available following the event on the Events and Presentations section of Ingevity’s investor relations website.

Ingevity: Purify, Protect and Enhance

Ingevity (NYSE:NGVT) is a global specialty materials company that develops advanced carbon and engineered materials solutions that improve mobility, strengthen and extend the life of infrastructure and enhance industrial processes. With a 90-year legacy of innovation, we work closely with customers to solve technical challenges and deliver materials that improve performance and environmental outcomes in essential applications. Our portfolio includes Performance Materials activated carbon technologies for emissions control and filtration; Pavement Technologies solutions for high-performance pavement applications and dispersants for crop protection; and Advanced Polymer Technologies specialty polymers for coatings and industrial applications. Headquartered in North Charleston, South Carolina, Ingevity operates from 17 locations worldwide and employs approximately 1,400 people. Learn more at ingevity.com.

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Caroline Monahan

843-740-2068

caroline.monahan@ingevity.com

Investors:

Mickey Walsh

843-740-2002

investors@ingevity.com