Proterra SPAC Presentation Deck

PROTERRA BUSINESS UNITS PROTERRA POWERED OEM Partner Model Initial Partnerships Established a Foundation for our Growth VAN HOOL Applications Served Vehicle Class Battery Size PROTERRA ENERGY PLEET ERLUTIONS Range Production Volumes April 8, 2021 PROTERRA TRANSIT Thomas BUILT BUSES Saf-T-Liner C2 Jouley School buses (Type C) Class 7 226 kWh up to 135 miles Deliveries began in Q2 2020 0555 CX45E Commuter coach buses Class 8 676 kWh up to 310 miles First deliveries in 1H 2021 BusTech Group Buslech ZDI-P450 Transit buses (Australia) Class 8 452 kWh up to ~200 miles Initial production targeted for 2021 PROTERRA OPTIMAL ' EV E1 Cutaway chassis Class 4 113 kWh up to 125 miles Initial production targeted for 2021 29

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