Proterra SPAC Presentation Deck

PROTERRA OVERVIEW PROTERRA POWERED Business Model End-to-End Powertrain Partnership Proterra Powered: Tailored Approach Through Partnership Model Proven Partnerships with Industry Leaders. PROTERRA Battery Partnership TRANSIT Energy System Integration Partnership January 2021 PROTERRA ENERGY LETO CONTEN Offering Provided to OEMs High Voltage Systems and Controls Battery System Drivetrain PROTERRA TRANSIT BUSTECH optimal Existing Customers and Applications ELECTRIC Transit Bus Transit Bus Shuttle Bus TEE DAIMLER CLOTHES DAIMLER COLMINTLINE C Class VAN HOOL School Bus Stepvan Coach Bus PROTERRA 1. Statistic specific to North America only 2. Annual vehicles across North American transit, school bus, shuttle bus, coach bus, step van and non-North American transit, refer to Index on page 52 for additional information Note: Refer to Disclaimer on pages 2 and 3 regarding forward-looking statements and use of projections Manufacturer of 1 of 3 school buses on the road today ¹ North America's leading class 6-8 vocational brand Coach and bus leader with 10k+ on the road today 1 Established Partnerships Serve a Target Segment Market Opportunity of ~175,000 Annual Vehicles 2 17

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