LIVERMORE, Calif., Sept. 22, 2025 (GLOBE NEWSWIRE) -- Advent Technologies Holdings, Inc. (NASDAQ: ADN), an innovation-driven leader in fuel cells and hydrogen technologies, has delivered its next generation, state-of-the-art Honey Badger 50™ (“HB50”) portable power units to the U.S. ARMY. This milestone achievement comes under the contract titled “Honey Badger Design Lock for Future Adoption” (the “Design Lock Contract”). Advent has designed the HB50 to play a crucial role in supporting the demanding defens ...