ATHENS, Greece, Sept. 02, 2025 (GLOBE NEWSWIRE) -- Advent Technologies Holdings, Inc. (NASDAQ: ADN), an innovation-driven leader in the fuel cell and hydrogen technology space, announce today that its wholly owned Greek subsidiary, Advanced Energy Technologies S.A. has submitted five (5) required deliverables to the European Climate, Infrastructure and Environment Executive Agency (CINEA) -since April 1st 2025 when the RHyno Project officially commenced- and is preparing to submit the first Progress Report ...