Proterra SPAC Presentation Deck

PROTERRA FINANCIALS Use of Transaction Proceeds Expands Proterra's Moat and Accelerates Growth Investments in Next-Generation Battery Program Target Powertrain Parity Projected Use of Proceeds Strategic Priorities Research & Development Capital Investments April 8, 2021 Growth Capex Domestic Cell Capacity Investment $200MM - $300MM $150MM - $225MM $100MM - $120MM ● ● ● ● Continue to optimize battery performance and costs Further develop drivetrain platform Fortify software and energy-as-a-service offerings Expand battery capacity to 5+ GWh Broaden vertical integration Co-locate factories at customers' sites PROTERRA Guarantee cell supply Lower cell prices Access to next-generation cell technology 57

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