Proterra SPAC Presentation Deck

PROTERRA OVERVIEW Strategically Positioned for a Total Addressable Market of ~$260 Billion April 8, 2021 ~$225 Billion Global Commercial Vehicle Powertrain Market 1 ~4.4 Million Vehicles 1 PROTERRA POWERED PROTERRA DAIMLER DAIMLER FRAS TRANSIT VAN HOOL BusTech Group KOMATSU OPTIMAL EV Can Cas LIGHTNING e MOTORS VOLTA TRUCKS Current Proterra Vehicle Categories ~$37 Billion Global Commercial Vehicle Charging Investment ² 40 TWh Annual Energy Need by 2030+ ² PROTERRA ENERGY™ FLEET SOLUTIONS PROTERRA 1. Estimated 2023 addressable market and number of vehicles for long-haul, medium-duty, construction / mining and buses; refer to Index on page 66 for additional information 2. Estimated 2030 addressable market and energy need excluding passenger cars; refer to Index on page 66 for additional information 16

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