Company News

September 9, 2026

NANO Nuclear Energy Hires Marilyn Diaz, an Experienced Nuclear Fuel and Enrichment Regulatory Executive, as its Director of Fuel Facilities Operations

New York, N.Y, Sept. 09, 2026 (GLOBE NEWSWIRE) -- NANO Nuclear Energy Inc. (NASDAQ: NNE) ("NANO Nuclear" or “the Company"), a leading advanced nuclear micro modular reactor and technology company focused on developing clean energy solutions, nuclear fuel cycle capabilities and nuclear transportation solutions, today announced that it has appointed Marilyn Diaz as its Director of Fuel Facilities Operations.

Ms. Diaz is an experienced industry leader with a robust background in regulatory and policy matters. She joins NANO Nuclear after serving more than seventeen years at the U.S. Nuclear Regulatory Commission (NRC), where she most recently served as Acting Deputy Division Director in the Office of Nuclear Reactor Regulation, leading a multidisciplinary team of more than 60 engineers and scientists supporting advanced and operating reactor licensing. Ms. Diaz previously served as Chief of Staff and Technical Assistant to NRC Commissioner Annie Caputo, advising on regulatory and policy matters, including the development of the NRC's regulatory framework for advanced nuclear reactors and fusion technologies. Throughout her NRC career, she held leadership and technical positions spanning reactor regulation, nuclear fuel facilities, advanced nuclear fuels, and materials licensing.

Ms. Diaz is expected to leverage her significant regulatory knowledge and experience within the NRC to assist NANO Nuclear in its continuing plan to vertically integrate across key aspects of the nuclear supply chain. She joins three other former senior NRC employees at NANO Nuclear to augment the Company’s regulatory and industry expertise.

“I am delighted to join NANO Nuclear as I take my first professional steps outside of the U.S. Nuclear Regulatory Commission,” said Marilyn Diaz, Director of Fuel Facilities Operations of NANO Nuclear Energy. “Throughout my tenure at the NRC, ensuring that public health and safety remained at the forefront of my work was a constant priority, and I am grateful for the opportunity to now apply that experience toward shaping NANO Nuclear’s expansion across the front end of the nuclear fuel cycle.”

Figure 1 - NANO Nuclear Energy Appoints Marilyn Diaz as its Director of Fuel Facilities Operations.

Particularly, earlier in her career with the NRC, Marilyn served in multiple supervisory roles, leading technical and licensing activities for uranium conversion, enrichment, and fuel fabrication facilities, as well as nuclear material transportation systems She holds a B.S. in Chemical Engineering from the University of Puerto Rico and an M.S. in Environmental Health Sciences and Policy from George Washington University.

"As our reactor technology continues to advance, NANO Nuclear remains focused on strengthening our leadership and management teams across key aspects of the nuclear fuel cycle, and Marilyn's appointment as our Director of Fuel Facilities Operations is a major endorsement of NANO Nuclear’s capabilities and future," said Jay Yu, Founder and Chairman of NANO Nuclear Energy. "We are pleased to welcome her to the team and believe she will play a key role in positioning our company for long-term achievement of our mission."

In her role as Director of Fuel Facilities Operations, Ms. Diaz will oversee NANO Nuclear’s strategic expansion across the front end of the nuclear fuel cycle. Drawing on her extensive background in nuclear regulation, policy, and licensing, she will lead NANO Nuclear’s efforts to help strengthen the nation's nuclear fuel and enrichment capabilities, with a particular focus on reinforcing the domestic fuel supply chain and positioning NANO Nuclear as a key contributor to U.S. energy security.

"We have always believed that access to nuclear fuel, and the logistics of supplying that demand, is one of the key pillars of the entire nuclear energy space and our vertical integration strategy which requires deep technical and regulatory expertise to tie together," said James Walker, Chief Executive Officer of NANO Nuclear Energy. "That is why attracting some of the best talent in the world to our leadership team remains a priority, and Marilyn's appointment underscores our continued commitment to that effort. In her new role, Marilyn will help oversee NANO Nuclear’s growing presence across the nuclear fuel cycle with a specific focus on the fuel conversion and de-conversion segments. We believe her experience will strengthen how we plan for and execute the next phase of growth to support our long-term vision for the nation's energy security."

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