Advent SPAC Presentation Deck

Business Model Illustrative Revenue from Single OEM Advent: Manufacturer of MEAS & developer of fuel cell systems 50+ patents, $500m of IP and partnerships with top US-labs provide for competitive advantage OEM: Fuel cell manufacturer or EV manufacturer Prototype Phase: We develop in cooperation with OEM specific prototype fuel cell system for application/market $0.3 Year 1 Engineering Fees $2m Year 2 Advent's business model provides strong customer traction and high revenue visibility «« Early Production Phase: We manufacture MEAS and earn license fees on fuel cell system $4m $1m $3m Year 3: 30 MW Licensing fees www.advent.energy MEA sales OEM focuses on manufacturing & marketing preparation $13m $2m $11m Year 4: 120 MW Mass Production We sell MEAs and earn license fees $72m $12m MEAS produced by roll- to-roll manufacturing means low-capex, high- margin scalability $39m $7m $37m Year 5: 450 MW Licensing fees MEA sales Mass market scale- up to 100k+ units $60m Year 6: 750 MW Licensing fees MEA sales $96m $16m $80m Year 7: 1 GW AMCI ADVENT Acquisition Corp. 28

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