ONE Nuclear Energy LLC and Hennessy Capital Investment Corp. VII Announce Closing of Business Combination

Sep 23, 2026 4:01 PM Eastern Daylight Time

ONE Nuclear Energy Inc. Expected to Trade Under Ticker “ONEN” on Nasdaq on or About September 24, 2026

Transaction positions ONE Nuclear to advance its nuclear and large-scale energy infrastructure development platform

Combined Platform Launches with 5 GW of Nuclear, Natural Gas and Battery Storage Capacity in Active Development

WEST PALM BEACH, Fla. & ZEPHYR COVE, Nev.--( BUSINESS WIRE )-- ONE Nuclear Energy LLC (“ONE Nuclear”), an independent developer of large-scale energy solutions powered by natural gas and advanced nuclear technologies, and Hennessy Capital Investment Corp. VII (“Hennessy VII”), a special purpose acquisition company, today announced the closing of their previously announced business combination (the “Business Combination”). The Business Combination was approved by Hennessy VII shareholders at an extraordinary general meeting held on August 24, 2026. In connection with the closing, Hennessy VII completed its previously disclosed domestication as a Delaware corporation and ONE Nuclear became a direct, wholly-owned subsidiary of Hennessy VII. Effective immediately following the consummation of the Business Combination, the combined company was renamed “ONE Nuclear Energy Inc.” Shares of ONE Nuclear Energy Inc.’s common stock are expected to commence trading on the Nasdaq Global Market under the ticker symbol “ONEN” on or about September 24, 2026.

"As a public company, we are well positioned to accelerate the development of our integrated natural gas and advanced nuclear platform and help meet the surging demand for reliable, baseload power,” said Richard Taylor, CEO of ONE Nuclear.

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“Today is an important milestone in ONE Nuclear's journey. As a public company, we are well positioned to accelerate the development of our integrated natural gas and advanced nuclear platform and help meet the surging demand for reliable, baseload power,” said Richard Taylor, Co-Founder, Chairman and Chief Executive Officer of ONE Nuclear. “Going public gives us the capital access and visibility to move the Louisiana Portfolio forward at the pace the market demands, including meeting the fast-growing power needs of AI and data center customers. We are grateful to our shareholders and partners for their support as we build the energy infrastructure America needs.”

ONE Nuclear’s multi-technology strategy pairs fast-to-market natural gas generation with advanced nuclear small modular reactor (“SMR”) technologies to deliver reliable, baseload power at scale. ONE Nuclear is advancing a pipeline of utility-scale projects designed around the needs of specific customers, grids and communities. ONE Nuclear’s Louisiana Portfolio includes Project Amberjack, a standalone, scalable, multi-unit SMR campus targeting up to 1 GW of advanced nuclear generation capacity, Project Cayman, a separate 2.88 GW natural gas plant and a 700 MW, 2.88 GWh Battery Energy Storage System project with a co-located high-capacity data center campus, and Project Barracuda, a 1.2 GW natural-gas plant with a 300 MW / 1,200 MWh BESS and a co-located 1 GW data center. To support its development program, ONE Nuclear works with a range of leading technology providers across the natural gas and advanced nuclear sectors and is supported by a management team and advisory board with deep energy, nuclear, regulatory and governmental experience.

Daniel J. Hennessy, the Chairman & Chief Executive Officer of Hennessy VII said, “We are excited to see the Business Combination successfully completed and congratulate the ONE Nuclear Energy team on this milestone. Becoming a publicly listed company positions ONE Nuclear to complete its growth plans, address the country’s growing need for reliable, large-scale power and create significant and sustained value for all stakeholders.”

B. Riley Securities, Inc. served as financial advisor, Rose & Ward PLLC and Nelson Mullins Riley & Scarborough, LLP served as legal advisors, and ICR, Inc. served as strategic communications advisor to ONE Nuclear. Cohen & Company Capital Markets, a division of Cohen & Company Securities, LLC served as exclusive financial advisor and lead capital markets advisor, Sidley Austin LLP served as U.S. legal advisor and Appleby (Cayman) Ltd. served as Cayman Islands legal advisor to Hennessy VII.

About ONE Nuclear

ONE Nuclear develops advanced nuclear and large-scale energy infrastructure designed to deliver reliable power, strengthen energy security and enable American industrial growth. The company advances projects through disciplined site control, siting and constraints analysis, regulatory planning, engineering coordination and project development. For more information, please visit www.onenuclearenergy.com .

About Hennessy VII

Hennessy VII is a blank check company formed for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization, or similar business combination with one or more businesses or entities, with a focus on identifying and acquiring companies in the industrial technology and energy transition sectors. For additional information, please visit www.hennessycapital7.com .

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