Renewable Energy Titan Joins Advent Board in Strategic Fuel Cell Play

LIVERMORE, CA – January 23, 2026 – Advent Technologies Holdings, Inc. (OTCQB: ADNH), a developer of advanced fuel cell systems, has appointed renewable energy heavyweight Chris Antonopoulos to its Board of Directors in a move that signals a significant strategic push for the company. The appointment is coupled with a personal investment from Mr. Antonopoulos, providing a potent vote of confidence in Advent's proprietary technology amid a challenging financial landscape.

A Strategic Endorsement

The announcement was met with enthusiasm from Advent's leadership, who see the appointment as a pivotal moment. “We are extremely pleased that Mr. Antonopoulos has invested in the Company and joined our Board,” commented Gary Herman, Chief Executive Officer of Advent. “His deep experience across energy, infrastructure, and global operations will be invaluable as we continue to grow Advent.”

Mr. Antonopoulos’s investment, formalized through a secured promissory note of CHF 500,000 (Swiss Francs), comes with an option to convert the debt into Advent common stock. This structure aligns his financial interests directly with the company's future performance. For his part, Antonopoulos expressed a clear vision for his role.

“Advent has developed a compelling technology platform with broad applicability across transportation, power generation, and industrial markets,” Mr. Antonopoulos stated. “I look forward to working with management to advance the Company’s technology, strengthen its market position, and execute on its growth strategy.”

James Coffey, Advent's Chief Operating Officer, highlighted the specific value Antonopoulos brings, adding, “Chris brings a unique combination of operational leadership and investment expertise that aligns perfectly with Advent’s strategic objectives.”

The Antonopoulos Track Record

Chris Antonopoulos is not just another executive; he is a seasoned leader with a formidable track record of scaling energy and infrastructure enterprises. His most notable recent success was his tenure as CEO of Lekela Power from 2015 to 2024. Under his leadership, Lekela grew into Africa’s largest pure-play renewable energy independent power producer, commanding a portfolio of over 1 GW of operational wind assets.

His stewardship culminated in the 2023 acquisition of Lekela by Infinity Power—a joint venture between Egypt’s Infinity Group and the UAE’s Masdar—in a multi-billion dollar transaction valued at an enterprise level of approximately $1.5 billion. This successful exit demonstrated his ability to build substantial value and navigate complex international energy markets.

Before his time at Lekela, Mr. Antonopoulos held senior leadership roles at Bombardier Transportation and, earlier in his career, presided over the project investment arm of industrial giant ABB. At ABB, he was responsible for developing and operating over 30 power and infrastructure projects that totaled an estimated $13 billion, cementing his reputation as an expert in large-scale project finance and execution.

Navigating a Challenging Landscape

Mr. Antonopoulos’s arrival comes at a critical juncture for Advent Technologies. The company, which currently trades on the OTCQB market, has faced significant financial headwinds. For the second quarter of 2024, Advent reported total revenues and grant income of $1.5 million against a net loss of $11.3 million. Its cash reserves were lean, standing at $0.7 million as of June 30, 2024.

In an effort to stabilize, the company has been streamlining operations to reduce cash burn. In May 2024, Advent executed a 1-for-30 reverse stock split to regain compliance with Nasdaq's previous listing requirements and attempt to attract a broader investor base. Despite these measures, the stock has remained volatile, reflecting market uncertainty about its path to profitability.

Antonopoulos's investment and board seat are therefore more than just a strategic appointment; they represent a potential catalyst. His expertise in securing large-scale financing and managing capital-intensive projects could prove instrumental as Advent seeks to move from research and development grants toward sustainable commercial revenue.

The Promise of HT-PEM Technology

At the heart of Advent's value proposition is its specialized High-Temperature Proton Exchange Membrane (HT-PEM) fuel cell technology. The company holds a robust intellectual property portfolio with over 70 patents related to this technology, which offers distinct advantages over the more common Low-Temperature PEM (LT-PEM) systems.

Unlike LT-PEMs that require high-purity hydrogen, Advent's HT-PEM systems can run on a variety of more accessible and easily transportable hydrogen-carrier fuels, including methanol, natural gas, ammonia, and other renewable biofuels. This fuel flexibility could allow customers to circumvent the estimated $15 trillion infrastructure investment required to build out a global high-purity hydrogen economy.

Furthermore, Advent’s technology is engineered for resilience. It is designed to operate reliably under extreme conditions, from -20°C to +55°C, and in polluted or humid environments where other fuel cells falter. This makes it highly suitable for demanding, mission-critical applications in the automotive, defense, marine, aviation, and power generation sectors.

The company is already leveraging this potential through key strategic partnerships. It is collaborating with Airbus to develop next-generation fuel cells for the aviation industry and holds contracts with the U.S. Department of Defense to optimize its portable power systems. The goal is to dramatically increase the power density and lifetime of its core membrane electrode assembly (MEA), a breakthrough seen as essential for achieving mass-market adoption and cost competitiveness. With the addition of a proven leader like Antonopoulos, Advent is better positioned to turn this technological promise into commercial reality.