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Who we are

ZettaJoule

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Mitsuo
Shimofuji

Co-founder, President & CEO

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17 years of experience in mega project of natural resources,  Biz-Dev, M&A, Finance, Governance, etc.

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Jeff
Harper, MBA

Co-Founder

EVP

Chief Commercial Officer

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30 years in nuclear sector. 

ex-X-energy VP, ex-Westinghouse, etc.

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Dr.Kazuhiko
Kunitomi

Co-Founder, CNO

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Internationally known expert in HTGR. 

ex-JAEA Deputy Director General, Sector of Fast Reactor and Advanced Reactor R&D

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Rumina
Velshi

Co-Founder

Regulatory Affairs

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4 decades of experience in nuclear space. ex-President & CEO, Canadian Nuclear Safety Commission. 

ex-Ontario Power Generation.

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Dr.Finis
Southworth

CTO

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Former Areva CTO

Former Leader of NGNP

Ex. Project Management of INL

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John
Valentino

VP

International Government Affairs

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ex-E-energy (BD, Gov’t affairs), 

ex-Centrus, ex-Westinghouse, 

ex-Duke Energy, ex-IAC

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Mike
Melton

VP

Business Development

International Regulatory Affairs

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Current X-energy (BD, Licensing), 

ex-NuScale Licensing Manager, 

ex-Westinghouse, MHI

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Ken
Petrunik

Senior Advisor to the CEO

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Advisor to CEO, ENEC

Chair Advisory Board Rolls-Royce SMR

Ex. ENEC Chief Program Officer

Ex. Candu Senior VP Projects

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Asahi
Chikaoka

Co-Founder

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Nuclear researcher in quantum beam, beta decay research. 

Intern at Toshiba and JAEA.

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Kaoko
Tateishi, CPA

VP

Corporate and Finance Ops

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Professional of international tax, FP&A, Accounting
ex-Sumitomo Corporation

ex-Deloitte

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Junichi
Sadamori, CPA

Head of Compliance and Internal Control

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Professional of Internal Control
ex-Sumitomo Corporation

ex-PwC

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Dr.Rube
Williams

Rep in Texas

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Nuclear Engineer, IT/AI Professional

Ex. NASA Ex. JAXA …etc

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