Advent SPAC Presentation Deck

Vast Market Opportunities Beyond Fuel Cells Advent MEA 01 02 03 Description 5 Advent Competitive Advantages Market Size 2 2 Flow Battery Energy Storage Storage solutions for wind or solar energy (utility, commercial & industrial, off-grid) ESS EW Sources: IDTechEx, Allied Market Research. Lower cost (50% lower) and higher power (5-10%) Adaptable to numerous RFB chemistries Already commercial and deployed the market $4.5 billion by 2028 2 2 Renewable Power Generation Water Electrolysis Plant Exceeds DOE goals for H₂ production Eliminates platinum on the anode Green Hydrogen Production: Electrolysis Green Hydrogen is essential for decarbonization, energy storage, and can be converted to renewable fuel Advent Membrane $2.3 billion by 2028 www.advent.energy Electrochemical Sensors R&D with key partners for directly using salt water for electrolysis and hydrogen production 2 2 2 loT loT Sensors Miniaturized sensors with applications in pollution detection, health screening and eNoses (phones that can "smell") High-temp Advent Materials are ideal for this application Multi-year development and ready for production Korean and Chinese phone makers poised to implement eNose in 2021 $1.3 billion by 2027 AMCI ADVENT Acquisition Corp. 26

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