Advent Investor Day Presentation Deck

Finance ADVENT Revenue 2025 Revenue Target: $300 Million Significant Market Opportunities • Stationary: 1.18 million telecom towers globally need backup power x 15kW = 18GW • Mobility: Heavy-Duty Trucks, Marine, Aviation • Current technology assessments with Hyundai and another top automaker Electrolysers and Fuel Cells from Green HiPo: • Electrolysers: If Green HiPo has less than 1% share of 400GW EU target by 2030, cumulative electrolyser capacity for Advent of 1.5GW over 6 years x estimated price of $300/kW = $450 Million cumulative revenue over 6 years • Fuel Cells: If Green HiPo has 0.07% share of 170GW EU target by 2030, cumulative fuel cell capacity for Advent of 120MW over 6 years x estimated price of $1700/kW = $205 Million cumulative revenue over 6 years • Fractional share of these markets can support Advent's long-term revenue target S AP (summmmmm INTIMI MONU 7 OOO 1 () 6

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