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Datasea Inc is a technology company. Its offers provides acoustic business services (focusing on high-tech acoustic technologies and applications such as ultrasound, infrasound, and Schumann resonance), 5G application services (5G AI multimodal digital business), and other products and services to various corporate and individual customers. The business activity of the group functions through China.
Advent Technologies Holdings Inc is an innovation-driven company in the fuel cell and hydrogen technology space. The company develops, manufactures, and assembles complete fuel cell systems and the critical components that determine the performance of hydrogen fuel cells and other energy systems. It serves automotive; aviation and power generation industries. It generates revenue from the sale of fuel cell systems and the sale of MEAs, membranes, and electrodes for specific applications in the fuel cell and energy storage (flow battery) markets.