Advent Investor Presentation Deck

POTENTIAL GROWTH CATALYSTS POTENTIAL CATALYSTS TO EXPEDITE GROWTH OVER THE NEXT 12 MONTHS ADVENT • Completion of the advanced manufacturing facility in Boston & Europe • Continued progress on commercializing the DoE technology • Collaboration/Joint Development Agreements (JDAS) with large, global players ● Product development activity around portable/off-grid, aviation and mobility • Potential strategic transactions EU approval of and breaking ground on the White Dragon and Green HiPo Projects Any Fuel. Anywhere. 32

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