Proterra SPAC Presentation Deck

TRANSACTION SUMMARY Peer Median: 23% Higher Growth, Scaling Margins... Operational Benchmarking vs. Publicly-Traded Mobility Technology Leaders Revenue Growth 2020E2022E CAGR (%) ¹ 68% 51% 20E-20E- 22E 25E PROTERRA Peer Median: 37% Gross Margin 2022E (%) 1 16% 13% 20% 25% 22E 23E 24E 25E PROTERRA January 2021 82% 40% NIO NIO EVE亿纬锂能 39% PLUG POWER 37% P BALLARD 37% 35% CATL TESLA 27% 27% 25% 24% 23% 21% | | | | | | PLUG CATL EVE IZ BALLARD SAMSUNG SAMSUNG SDI TESLA POWER Source: Capital IQ, Company materials 1. Market data and Refinitiv median estimates from Capital IQ as of January 8, 2021 Note: Refer to Disclaimer on pages 2 and 3 regarding forward-looking statements and use of projections 20% SAMSUNG SAMSUNG SDI 19% NIO 19% BYD 16% BYD PROTERRA NM WORKHORSE 13% WORKHORSE 45

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