ADVENT TECHNOLOGIES HOLDINGS Business Summary

Advent Technologies Holdings, Inc. (ADNH) is an advanced materials and technology company specializing in High-Temperature Proton Exchange Membrane (HT-PEM) fuel cells, generating revenue through the sale of complete fuel cell systems, membrane electrode assemblies (MEAs), and specialized components. The company operates through two primary segments: Clean Power, which provides portable and off-grid power solutions like the Serene and Honey Badger systems, and Materials, which focuses on licensing proprietary intellectual property and selling core electrochemical components to the automotive, aviation, and defense sectors. Following a severe liquidity crisis and its 2024 transition to the OTCQB market, Advent has pivoted toward an asset-light model centered on IP licensing and strategic projects, such as the megawatt-scale "RHyno" initiative in Greece. It competes directly with Plug Power, Ballard Power Systems, and Bloom Energy, positioning itself as a niche provider of "any-fuel" technology capable of utilizing liquid green fuels like methanol and ammonia, though it currently maintains a significantly smaller market capitalization and workforce than its primary peers. The company’s leadership underwent a major restructuring in late 2024, resulting in the appointment of Gary Herman as Chief Executive Officer and Interim Chief Financial Officer. Herman is a seasoned turnaround executive with a background in investment management at Strategic Turnaround Equity Partners and Burnham Securities. He is supported by co-founder and Chief Technology Officer Dr. Emory De Castro, a prominent electrochemist formerly of BASF Fuel Cell and De Nora, and James Coffey, who serves as Chief Operating Officer and General Counsel. The board of directors was recently strengthened in January 2026 by the appointment of Chris Antonopoulos, a private investor and former CEO of Lekela Power, who brings extensive infrastructure and energy sector expertise. While the company was originally founded by Dr. Vasilis Gregoriou and backed by institutional investors like Mitsui & Co., its current governance is focused on financial stabilization and the commercialization of its HT-PEM patent portfolio.