Proterra SPAC Presentation Deck

PROTERRA BUSINESS UNITS PROTERRA POWERED OEM Partner Model Vehicle Class New Partnerships Have Expanded into Truck and Off-Highway Categories Applications Served Battery Size PROTERRA ENERGY Range PARET SELUTIONS April 8, 2021 Production Volumes PROTERRA TRANSIT VOLTA TRUCKS Volta Zero Last-Mile Urban Delivery Class 7 ZER 225 kWh up to 125 miles First deliveries targeted for 2022 FREIGHTLINER Custom Chassis MT50e Step Vans Class 4-6 226 kWh > 125 miles Initial production targeted for 2021 R LIGHTNING e MOTORS Transit Van Cargo vans, ambulances, shuttle buses Class 3 Confidential up to ~200 miles PROTERRA Initial production of ~100 in 2021; Targeting ~3k in 2023 KOMATSU KOMATSU Hydraulic Excavator 10 - 20 ton Construction Equipment Confidential NM First prototype in 2021; commercial production planned for 2023-24 30

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