Momentus SPAC Presentation Deck

$, Cost LONG-TERM GROWTH OPPORTUNITY IN-SPACE RENEWABLE ENERGY SOLAR POWER AND DATA CENTERS ARE POTENTIALLY A $1.4T OPPORTUNITY BY 2050¹ 100B 10B 1B 100M 10M 1M Power Vigoride 1kW Ardoride PHOTOVOLTAIC SOLAR PANELS 10kW Fervoride 100kW Valoride TRADITIONAL GAAS SOLAR PANELS $600/W SOLAR THERMAL STEAM TURBINES AND GENERATOR 1MW LOW-COST SI PANELS $100/W Solar Power 10MW 100MW Copyright 2020. Momentus Inc. Proprietary & Confidential. Not Export Controlled. Any use, reproduction, or distribution without the express consent of Momentus is strictly prohibited. If you are not the intended recipient, please immediately delete this document and any associated communications. 1GW The largest source of energy in the Solar System is the Sun. Every sq. ft. of surface in space gets 10 times more energy in space than on Earth Traditional photovoltaic solar panels are competitive in space only for smaller power uses. Solar-thermal systems using steam turbines and generators are more efficient at the hundreds of kW power level Advantages: Low-cost Scalability Radiation tolerance Availability of technologies 1. Management estimates 28

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