Energy Vault SPAC Presentation Deck

Projected Financial Profile | ($ in millions) Total Projects Post-NTP (MWh): Revenue Growth - 0 ENERGY VAULT $0 2021 $25 2021 NM Revenue 858 $148 2022 Novus Capital Corporation II NM CapEx $211 2022 1,755 $535 10% 2023 262% Tech & Other ■Mobile Mass Machines (MMM) Equity Project Co-Investments $193 2023 4,623 $1,519 8% 2024 184% $156 2024 9,223 $2,764 7% 2025 82% $122 2025 Adj. EBITDA Margin 4% MMM CapEx/ % of Adj. EBITDA Revenue Adj. EBITDA calculated as revenue less COGS less operating expenses, inclusive of SG&A and R&D. Reconciliation to GAAP is not provided as it cannot be made without unreasonable burden. ($36) 2021 ENERGY VAULT, INC. ALL RIGHTS RESERVED NM ($61) 2021 Adj. EBITDA¹ NM ($10) 2022 (7%) ($221) 2022 $102 Adj. EBITDA-CapEx NM 2023 19% ($90) 2023 NM $366 2024 24% $210 2024 57% $662 2025 24% $540 2025 82% 41 Enabling a Renewable World

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