Eos Energy Enterprises, Inc. (NASDAQ:EOSE) ("Eos" or the "Company"), America’s leading innovator in designing, manufacturing, and providing zinc-based long-duration energy storage (LDES) systems sourced and manufactured in the United States, today announced a strategic partnership with the Department of War to enhance the resilience of national defense infrastructure. Eos was awarded a Golden Dome for America contract to integrate mission-ready long-duration energy storage supporting requirements of the nation’s defense shield.

The award was highlighted by President Donald Trump during Senator Dave McCormick's Defense and National Security Summit in Carlisle, Pennsylvania on July 15, 2026.