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| Name of Subsidiary | | Country of Incorporation | | Percentage of Voting Securities Owned |
| Energy Vault, Inc. | | United States (Delaware) | | 100% |
| Calistoga Resiliency Center Holdco, LLC | | United States (Delaware) | | 100% |
| Calistoga Resiliency Center, LLC | | United States (Delaware) | | 100% |
| Cetus Energy LLC | | United States (Delaware) | | 100% |
| Cetus Energy, Inc. | | United States (Delaware) | | 97% |
| Cross Trails Energy Storage Project Holdco, LLC | | United States (Delaware) | | 100% |
| Cross Trails Energy Storage Project, LLC | | United States (Delaware) | | 100% |
| Asset Vault, LLC | | United States (Delaware) | | 100% |
| Energy Vault CDU Holdco, LLC | | United States (Delaware) | | 100% |
| Energy Vault CDU Project, LLC | | United States (Delaware) | | 100% |
| Energy Vault SOSA HoldCo LLC | | United States (Delaware) | | 100% |
| SOSA Energy Center, LLC | | United States (Delaware) | | 100% |
| Snyder Housing LLC | | United States (Texas) | | 100% |
| Energy Vault SA | | Switzerland | | 100% |
| Energy Vault Pty Ltd | | Australia | | 100% |
| Energy Vault Stoney Creek HoldCo Pty Ltd. | | Australia | | 100% |
| Energy Vault Stoney Creek ProjectCo Pty Ltd. | | Australia | | 100% |
| Energy Vault Solutions UK Limited | | United Kingdom | | 100% |
| Energy Vault Nantong Co., Ltd. | | China | | 100% |
| Energy Vault Srl | | Italy | | 100% |
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