Advent Technologies Holdings, Inc. (ADN)

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Based in Boston, Massachusetts, Advent Technologies Holdings, Inc. is an innovator in advanced materials and technology, concentrating its efforts within the fuel cell and hydrogen sectors. The company is responsible for the development, manufacturing, and integration of essential fuel cell systems and critical components that enhance the performance of hydrogen fuel cells and other energy solutions. Its product line encompasses high-temperature proton exchange membrane (HT-PEM) fuel cells, as well as HT-PEM-based membrane electrode assemblies, individual membranes, and electrodes. Advent's te…