Deep Isolation Nuclear, Inc. (“Deep Isolation” or the “Company”), a leading innovator in nuclear waste disposal technology, today announced the appointment of Renée Hornbaker to its Board of Directors, effective immediately.

Deep Isolation Nuclear, Inc. (“Deep Isolation” or the “Company”), a leading innovator in nuclear waste disposal technology, today announced the submission of its response to the National Association of State Energy Officials’ (NASEO) consultation on its Advanced Nuclear First Movers Orderbook Strategy.

Deep Isolation Nuclear, Inc. (“Deep Isolation” or the “Company”), a leading innovator in nuclear waste disposal technology, today announced the appointment of Christa Steele to its Board of Directors, effective immediately.

Berkeley, CA, September 30, 2025 – Deep Isolation Nuclear, Inc. (“Deep Isolation” or the “Company”), a leading innovator in nuclear waste disposal technology, today confirmed the restart of its U.S. Trade and Development Agency (USTDA)–funded feasibility study to assess the viability of deep borehole disposal of Bulgarian spent nuclear fuel.

Deep Isolation Nuclear, Inc. (together with its subsidiaries “Deep Isolation” or the “Company”), a leading innovator in nuclear waste disposal technology, today announced it has signed a technology licensing agreement with Navarro Research and Engineering, Inc. (“Navarro”). The agreement grants Navarro access to Deep Isolation’s portfolio of intellectual property for use in nuclear and hazardous waste management applications across the states of Tennessee and Idaho.

Deep Isolation Nuclear, Inc., a leading innovator in nuclear waste disposal technology, announced that on July 23, 2025, it closed a reverse merger transaction, as a result of which it acquired Deep Isolation, Inc. The stockholders of Deep Isolation, Inc. now hold a majority of the outstanding shares of Common Stock of the Company.

CEO Rod Baltzer appeared live on Bloomberg’s Open Interest. The segment aired on Bloomberg Television and streamed online at bloomberg.com/live/us.

Deep Isolation welcomes the release of a new national Action Plan by the U.S. Nuclear Industry Council (USNIC), outlining a path to implement President Trump’s vision for nuclear waste disposal as set forth in Executive Order 14302. The Action Plan for Transforming the Back End of the U.S. Nuclear Fuel Cycleprovides a detailed roadmap for enabling permanent disposal of the nation’s spent nuclear fuel and high-level radioactive waste, and advances a public-private partnership model to move the nation forward.

On June 25, CEO Rod Baltzer discussed how Deep Isolation’s breakthrough technology is addressing one of nuclear energy’s most urgent and unresolved challenges: permanent waste disposal.

Deep Isolation will participate in the 2025 American Nuclear Society (ANS) Annual Meeting, taking place June 15–18 in Chicago, Illinois. The company will be represented by CEO Rod Baltzer, who will participate in a panel discussion exploring progress toward establishing a domestic nuclear waste repository program.

Deep Isolation announced its participation in the newly launched WISARD (Waste Integration for Small and Advanced Reactor Designs), a three-year international project spearheaded by the Nuclear Energy Agency (NEA). The initiative aims to develop integrated approaches to radioactive waste management for the next generation of nuclear power systems.

Deep Isolation applauds the suite of executive orders signed by President Donald J. Trump on May 23, 2025, which prioritize revitalizing the nuclear industrial base, accelerating the deployment of advanced reactors, and advancing spent nuclear fuel (SNF) and high-level radioactive waste (HLW) disposal.

CEO Rod Baltzer appeared on Bloomberg May 23 to discuss Deep Isolation’s technology and why it matters amid rising interest in nuclear energy.

Deep Isolation, a leading innovator in nuclear waste disposal technology, has successfully completed Project PUCK, a groundbreaking, government-funded initiative to demonstrate the feasibility and potential commercial readiness of its Universal Canister System (UCS) to manage TRISO spent nuclear fuel.

Deep Isolation, a leader in deep borehole nuclear waste disposal solutions, and Deep Fission Inc. (Deep Fission), the pioneering nuclear energy startup revolutionizing the industry by placing reactors a mile underground, have signed a Memorandum of Understanding (MOU) to collaborate on spent fuel management for Deep Fission’s advanced underground reactors. This agreement marks a shared commitment to ensuring a comprehensive approach to the full nuclear fuel cycle.

Deep Isolation, a leader in nuclear waste disposal technology, has successfully completed a multi-year project with the UK government, marking a major step forward in proving the feasibility and commercial readiness of deep borehole disposal solutions.

Deep Isolation will participate in the ARPA-E Energy Innovation Summit in Washington, D.C., an event bringing together energy industry leaders and experts to explore breakthrough technologies, shaping the future of energy innovation.

With financial support from USTDA, Bulgaria’s national waste management organization, the State Enterprise Radioactive Waste (SERAW), has engaged Deep Isolation to conduct a Feasibility Study.