LIVERMORE, Calif., Sept. 29, 2025 — (NASDAQ: ADN) Advent Technologies Holdings, Inc., through its wholly owned subsidiary, Advent Technologies, SA, is pleased to announce a new contract with Siqens GmbH, a leading German fuel cell system manufacturer. Under the terms of the 12-month contract, Advent will supply Membrane Electrode Assemblies (“MEAs”) for integration into Siqens’ innovative fuel cell systems.
This marks a significant milestone in Advent’s ongoing mission to expand the adoption of its proprietary High-Temperature Proton Exchange Membrane (HT-PEM) technology across global markets. The Advent MEAs are designed to deliver high performance and durability, enabling Siqens to enhance the efficiency and reliability of its fuel cell solutions for off-grid and backup power applications.
Gary Herman, CEO of Advent Technologies, commented, “This agreement with Siqens is a testament to the strength of our MEA technology and our ability to meet the evolving needs of the fuel cell industry. We look forward to a successful partnership and continued growth in the European market.”
Nikos Farmakiotis, Sales and Marketing Manager of Advent Technologies, stated:
“This agreement with Siqens demonstrates the continued relevance and reliability of our PBI-based MEA technology to be integrated in the Siqens fuel cell systems that meet the growing demand for clean and dependable power solutions.”
Dr. Thomas Klaue, CEO of Siqens GmbH, added, “We are pleased to collaborate with Advent Technologies as a provider and integrate their advanced MEAs into our fuel cell systems. This partnership supports our commitment to delivering robust and sustainable energy solutions to our customers worldwide. The collaboration between Advent and Siqens reflects a shared commitment to advancing clean energy technologies and accelerating the transition to a low-carbon future. By leveraging Advent’s advanced MEA components, Siqens aims to further optimize its fuel cell systems for a wide range of applications, including telecommunications, emergency power, and remote infrastructure.”
About Advent Technologies Holdings, Inc.
Advent Technologies Holdings, Inc. is a U.S. corporation that develops, manufactures, and assembles complete fuel cell systems, as well as supplying customers with critical components for fuel cells in the renewable energy sector. Advent is headquartered in Livermore, CA, with offices in Germany, Athens and Patras, Greece. With more than 70 patents issued, pending, and/or licensed for fuel cell technology, Advent holds the IP for next-generation HT-PEM that enables various fuels to function at high temperatures and under extreme conditions, suitable for the automotive, aviation, defense, oil and gas, marine, and power generation sectors.