Proterra SPAC Presentation Deck

TRANSACTION SUMMARY Conservative, Risk-Adjusted Projections... Revenue Growth Benchmarking High-Growth Technology Reference Peers and Mobility Technology SPAC Transactions Revenue rowth CAGR (%) ¹ 1 SPAC Median: 172% Base Year: 68% '20E Reference Median: 63% PROTERRA January 2021 Proterra's Projected Growth In-Line with Similar High-Growth Technology Precedents 61% TESLA '13-'18 Passenger Electric Vehicles 65% CATL '15-'19 Lithium-Ion Batteries 58% '20E 85% '22E -chargepoin+² LORDSTOWN. I 103% I '21E 1 -CANOO- 147% '22E HYLIION 172% '20E ROMEO POWER TECHNOLOGY High-Growth Technology Reference Peers 178% '21E 185% '20E PROTERRA 234% N NIKOLA™ XLFleet 4 '20E Mobility Technology SPAC Transactions 274% THE LION ELECTRIC CO Source: Company materials 1. Revenue growth CAGR calculated using the base year and the last year from each respective company's transaction announcement presentation, final year revenue based on 2024E for Arrival, Nikola, XL Fleet, Hyliion, Lion Electric, and Lordstown, 2025E for Proterra and Romeo Power, and 2026E for ChargePoint and Canoo 2. ChargePoint approximate calendar year (actual fiscal year ends January 31st) Note: Refer to Disclaimer on pages 2 and 3 regarding forward-looking statements and use of projections '22E * ΑΓΓΙVAL 48

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