Proterra SPAC Presentation Deck

PROTERRA OVERVIEW Proterra Has Overcome Key Obstacles to Electrification Obstacle Cost Performance Safety Quality Charging Scale January 2021 What We Do Isn't Easy ✓ Highly competitive total cost of ownership ✓ Best-in-class battery system enables greater range and weight loads ✓ State-of-the-art testing, certification, and compliance programs ✓ ~16MM real world miles, long lifespan of 4,000+ cycles, and low maintenance ✓ End-to-end solutions with 54 MW installed at 450+ charge points Over a decade of experience with ~350k sq. ft. of advanced manufacturing capacity Integrated Platform Enabling Commercial Vehicle Electrification PROTERRA 11

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