Hyliion to Showcase KARNO Technology at 2026 Pennsylvania Defense and Innovation Summit

About this update from Hyliion Holdings Corp.

AUSTIN, Texas, July 10, 2026 --( BUSINESS WIRE )-- Hyliion Holdings Corp. (NYSE American: HYLN), a developer of modular power plant technology, today announced that Hyliion will showcase the KARNO technology and participate in the 2026 Pennsylvania Defense and Innovation Summit at the U.S. Army War College on July 14 and 15. Thomas Healy, Founder and Chief Executive Officer of Hyliion will join this invitation-only gathering hosted by Senator Dave McCormick (R-PA). Remarks at the summit are expected from President Donald Trump. The summit will bring together senior military leaders, administration officials, policymakers, and industry executives to discuss national security, defense modernization, energy resilience, and advanced manufacturing. Hyliion's participation reflects the company's expanding engagement with the U.S. defense community. The company will exhibit at the summit, showcasing the KARNO™ linear generator technology and engaging with military leaders, government officials, and industry partners throughout the event. "The ability to generate reliable power wherever it's needed is becoming increasingly important to military readiness," said Thomas Healy, Founder and Chief Executive Officer of Hyliion. "We're honored to participate in this summit and to showcase how next-generation power technologies can help strengthen America's energy resilience and support national security." The KARNO Power Module is designed to deliver high electrical efficiency, fuel flexibility, and low-maintenance operation across a wide range of use cases, making it well suited for defense, critical infrastructure, and other mission-critical applications. About Hyliion Hyliion is committed to creating innovative solutions that enable clean, flexible and affordable electricity production. The Company's primary focus is to provide modular power plant technology that can operate on various fuel sources to future-proof against an ever-changing energy economy. Headquartered in Austin, Texas, and with research and development in Cincinnati, Ohio, Hyliion is initially targeting the commercial and waste management industries with a locally deployable KARNO Power Module that can offer prime power as well as energy arbitrage opportunities. Beyond stationary power, Hyliion will address mobile applications such as vehicles and marine vessels. The Company aims to offer innovative, yet practical solutions that contribute positively to the environment in the energy economy. For further information, please visit www.hyliion.com .

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