Advent SPAC Presentation Deck

Leadership & Expertise 30+ years of operational and strategy experience in the US and Europe World-renowned renewable energy expert Extensive experience in product development and company management • Ph.D. in Physical Chemistry, Duke MBA, Northeastern . Vasilis Gregoriou* Chairman & CEO ● Duke UNIVERSITY PRINCETON UNIVERSITY Polaroid . Bill Hunter* CEO, AMCI Incoming President & CFO of Advent Technologies, Inc. 25+ years of financial services experience, with a focus on the industrial and natural resources sectors Long track record in battery metals-related investments, including current Board member of American Battery Metals Corp. MBA, DePaul University AMCI Jefferies NOMURA ● ● Proven track-record of technological development and • 35+ years of technology commercialization, 25+ years in fuel cells ● commercialization Emory De Castro* CTO Volume manufacturing expert DOE Manufacturing Award BASF Fuel Cell Inc. PEMEAS Inc., and De Nora N.A. E-TEK Ph.D., Cincinnati B.S., Duke D-BASF We create chemistry PEMEAS E-TEK Fuat Cal Technologies Chris Kaskavelis CMO 20+ years as a C-Suite Officer in Tech/Marketing (founded start up to AIM & Nasdaq IPOs) • Ph.D. in Supply Chain Management and M.Sc. in Manufacturing Engineering, Boston University B.Sc. in Electrical Engineering and B.A. in Business Economics, Brown University *Indicates member of Board of Directors following the Business Combination. Additional Board of Director members include Katherine Fleming, Anggelos Skutaris, Katrina Fritz and Lawrence Clark. www.advent.energy Jim Coffey COO and General Counsel • 30+ years experience in corporate and securities law, M&A, VC, corporate finance and IP law ● Long track record working with companies in the clean energy and technology sectors, with specific experience in the fuel cell industry • LL.M. in Corporate Law, NYU J.D., New England School of Law B.A., Providence College AMCI ADVENT Acquisition Corp. 19

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