Energy Vault SPAC Presentation Deck

Project Delivery Scope Outsourced assembly and construction model supports rapid growth and global execution Energy Vault Sales Funnel (Next 5 Years)' 361 Total Engagements $32+ bn in Potential Sales Stage 1 214 engagements 31,050 MWh - $7.5 billion Stage 2 57 engagements 28,450 MWh - $6.8 billion Stage 3 64 engagements 37,415 MWh - $9.0 billion Stage 4 18 engagements 26,525 MWh- $6.4 billion Stage 5 8 engagements 11,855 MWh- $2.9bn Executed agreements or LOIs with 8 customers represent 1,223 MWh and $368 million in bookings Pipeline Contract Signed Revenue Recognized I ENERGY VAULT Selection of pre-qualified engineering, procurement and construction (EPC) partner Project management and logistics Components sourced from established global supply chains Novus Capital Corporation II M1 M2 Planning & Procurement ● M3 Note: Revenue recognition will be on percent completion, not at cash received. ¹ Figures shown represent total MWh and $ value of projects to be delivered over the next five years. M4 Foundation Prep Foundation excavation and construction Locally procured and manufactured Local contractors Mold and press assembled on site Utilizes local soil, sand or waste material Mobile Mass Manufacturing M5 QA/ QC M6 M7 Sales Cycle ● Construction & Assembly ENERGY VAULT, INC. ALL RIGHTS RESERVED ● Fixed frame erected in segments Power electronics hoisted into place using standard construction machinery Installation Major structural and mechanical components manufactured at vendor facilities Fixed frame segments assembled on-site Initial assembly of power components on ground M8 M9 M10 Legend Energy Vault Scope Outsourced (EPC) Scope ● ● M11 Testing & Commissioning Verification of proper installation Energy Vault oversees initial operations and maintenance Preventative and corrective maintenance through qualified local subcontractors System testing Training for successful turnover M12 ● O&M Services ● Post-COD Software Licensing & Support 34 Long-term software license Software upgrades & technical support Revenue Recognition Enabling a Renewable World

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