Advent Technologies Receives Nasdaq Notification Regarding Compliance with Listing Requirements, Appoints Three New Directors Page 1

Advent Technologies Holdings, Inc. (NASDAQ: ADN), an innovative leader in the fuel cell and hydrogen technology sectors, today announced that it has received a letter from the Listing Qualifications Department of the Nasdaq Stock Market (“Nasdaq”) confirming that the company has cured its prior deficiency with respect to the filing of its Annual Report on Form 10-K on August 13, 2024. The letter also informed Advent Technologies that it remains non-compliant with Nasdaq Listing Rule 5250(c)(1) due to the delayed filing of its Quarterly Reports on Form 10-Q for the periods ended March 31, 2024 (the “First Quarter 10-Q”) and June 30, 2024 (the “Second Quarter 10-Q” and, together with First Quarter 10-Q, the “Delinquent Reports”). The Nasdaq letter has no direct impact on the listing or trading of Advent Technologies shares.

Nasdaq has granted the company an extension to file the Delinquent Reports until October 14, 2024. Advent Technologies is actively working to complete the required filings and aims to be back in full compliance by the deadline.