Terrestrial Energy

Today, Terrestrial Energy and @RiotPlatforms signed a Memorandum of Understanding for the development of Terrestrial Energy’s IMSR Plants, which will be co-located with Riot's data centers, built for AI and high-performance compute applications. Our collaboration with Riot Platforms will pair best-in-class nuclear energy and data centers to deploy multiple 390 MW IMSR Plants, representing up to 4 GW of nuclear power capacity. It will also include the potential to incorporate natural gas as a bridge fuel for commercial operations on an accelerated timeline and enhance power supply resilience alongside IMSR Plant development. Terrestrial Energy’s IMSR Plant is uniquely suited for data center operation and our non-nuclear energy conversion system provides a competitive advantage in the small modular reactor (SMR) sector. Read the press release: businesswire.com/news/home/2026…

Terrestrial Energy continues to advance its Integral Molten Salt Reactor (IMSR) Plant projects, including its participation in U.S. Department of Energy (DOE)'s Advanced Reactor Pilot and Fuel Line Pilot programs as it works toward commercial deployment. In a recent conversation with @ChemEngMag, CEO and Director, Simon Irish, discussed how the IMSR's 585°C output improves the efficiency of electricity power generation by nearly 50% over light water reactors, as well as being deliverable directly to drive the thermal energy needs of many chemical production processes. At 390 MW electric or 822 MW thermal or combination of both, the IMSR Plant is sized for industrial scale users. chemengonline.com/molten-salt-nu…

We are pleased to announce another regulatory milestone as we advance our programs for licensed commercial operation of IMSR Plants in the U.S. The U.S. Nuclear Regulatory Commission (NRC) has issued its Safety Evaluation Report (SER) for the company’s Postulated Initiating Events (PIE) Topical Report, which follows the NRC's acceptance of Terrestrial Energy's final Topical Report submission announced in April 2026. The Topical Report’s approved safety evaluation establishes another fundamental regulatory framework supporting future IMSR Plant licensed operation. This and prior NRC approved safety analyses of IMSR performance establish critical elements of the IMSR’s licensing basis and reinforce the company’s continued progress toward commercial deployments of multiple IMSR plants. → Full press release: businesswire.com/news/home/2026… #IMSR #SMR #NuclearEnergy

Terrestrial Energy is excited to announce that Tyler Gronbach has joined the company as Vice President of Investor Relations and Public Relations to lead investor and public communications as the company advances Integral Molten Salt Reactor (IMSR) commercialization. The appointment comes as Terrestrial Energy accelerates commercialization of its IMSR plants and expands engagement with institutional investors, sell-side analysts and the financial media following its Nasdaq listing last year. Tyler has extensive experience helping publicly traded companies tell their stories to key stakeholders and will be key in ensuring that the company's messaging captures the energy market value of IMSR technology. He will report directly to Terrestrial Energy CEO, Simon Irish. Welcome to the team, Tyler! Read the full announcement here: businesswire.com/news/home/2026…

As energy demand increases, SMR nuclear options are becoming more attractive due to their efficiency, clean energy production, and scalability. This recent piece in The Free Press dives into the hurdles U.S. nuclear energy has faced in the past and how new policy developments are opening doors for the next generation of nuclear energy. thefp.com/p/will-america… #IMSR #NuclearEnergy #CleanEnergy

Terrestrial Energy just hit a significant NRC milestone. We’ve submitted a foundational safety analysis to the @NRCgov — a critical step toward licensed commercial operation of the IMSR Plant in the U.S. What makes this meaningful beyond the regulatory milestone: the NRC’s Safety Evaluation Report process allows a single review to apply across multiple IMSR plants — a scalability advantage built into the licensing framework from the start. This builds on our NRC Principal Design Criteria approval achieved in 2025, and keeps us on track toward deployment of the first commercial IMSR plants in the early 2030s. → Full press release:  ir.terrestrialenergy.com/news-releases/… #IMSR #AdvancedNuclear #SMR #CleanEnergy #NuclearEnergy

During a panel discussion at @CERAWeek, the world's premier energy event, Terrestrial Energy's CEO Simon Irish highlighted the design benefits of the company's Integral Molten Salt Reactor (IMSR) Plant. Operating at a high temperature, low pressure, and with inherent safety characteristics, the IMSR Plant stands out for its capital efficiency. Importantly, the IMSR Plant is fueled by readily-available standard-assay low enriched uranium, avoiding supply chain challenges and offering an unmatched competitive edge. #CERAWeek #IMSR #NuclearEnergy

Simon Irish, Terrestrial Energy CEO, spoke at @CERAWeek, the world's premier energy event, on "Harnessing the Future: an In-depth look at Terrestrial Energy and its Integral Molten Salt Reactor." Simon described the unique and highly competitive design and operating characteristics of the IMSR technology. Terrestrial Energy's IMSR Plant delivers the commercial and economic factors required to drive a massive expansion in nuclear energy supply to meet the rapidly growing energy needs of our nation and the world. #CERAWeek #IMSR #NuclearEnergy

We look forward to CEO Simon Irish's participation at @CERAWeek 2026! If you're attending, be sure to check out Simon's #CWAgora Pod, "Harnessing the Future: An In-depth Look at Terrestrial Energy and Its Integral Molten Salt Reactor," and join the discussion on the benefits of Integral Molten Salt Reactors (IMSRs) and the emergence of Small Nuclear Reactors. More on Simon's CERAWeek Particpation:  ceraweek.com/en/speakers/si… #CERAWeek #IMSR #NuclearEnergy

Our CEO Simon Irish, will be among the energy industry leaders speaking at @CERAWeek 2026. Simon will participate in discussions centered on Terrestrial Energy's innovative, Gen IV Integral Molten Salt Reactor (IMSR) technology and how Small Modular Reactors (SMRs) are emerging as the most prominent next generation nuclear technology. We are excited for Simon to share his insights and connect with others in the energy industry at the conference. We look forward to seeing you in Houston next week! More on Simon's CERAWeek Agenda: ceraweek.com/en/speakers/si… #CERAWeek #IMSR #NuclearEnergy

As we enter a new phase of nuclear technology, we're having important conversations about its accelerating momentum. A few months ago, our CEO Simon Irish, sat with Brennan Moore on the @NuclearInvest Podcast to discuss the evolution of capital markets in nuclear, the advantages of Terrestrial Energy's Integral Molten Salt Reactor (IMSR) technology, and why capital efficiency and rapid deployment are essential for the future of clean energy. Listen to the podcast: nuclearinvestingpodcast.com/how-big-capita… #IMSR #NuclearEnergy #CleanEnergy

Terrestrial Energy was featured in the Reuters Events piece "Nuclear startups bullish on hitting US pilot program deadline," which highlights the company's Nuclear Regulatory Commission engagement achievements, including Principal Design Criteria approval for Terrestrial Energy's commercial Integral Molten Salt Reactor, its SPAC merger, and its participation in the Department of Energy's Advanced Reactor and Fuel Line Pilot Programs — one of only three companies selected for both initiatives. Our CEO, Simon Irish iterated in the article that DOE programs designed to facilitate SMR deployments have been "instrumental in creating enhanced investor confidence by delivering a clear message about our accelerated commercialization pathway." Read the article: reutersevents.com/nuclear/nuclea…

Iftikhar Haque, Vice President of Nuclear Supply Chain for Terrestrial Energy, shares his expertise at the @US_NIC's Advanced Reactor Summit XIII, in Seattle, Washington.  During his panel appearance, Iftikhar described how Terrestrial Energy has built a mature and trusted US-focused supply chain comprised of a leading group of nuclear fuel, services, and component providers to support commercial deployment of the Integral Molten Salt Reactor (IMSR), a Generation 4 technology that delivers best-in-class capital efficiency and low-cost nuclear energy supply.  By using readily available standard-assay low-enriched uranium in its fuel, with contracts in place with top-tier suppliers, through a modular design for fast construction, and with a low-CAPEX business model, Terrestrial Energy is well positioned for rapid IMSR plant deployment.  Learn more at terrestrialenergy.com

Last Wednesday, Terrestrial Energy CEO and Director, Simon Irish, joined the NACD New Jersey Chapter's virtual panel, "Powering the Future: The Role of Nuclear Energy in U.S. Energy Resilience." Simon and a group of industry experts discussed the evolving role of nuclear energy in the U.S. energy landscape under the new Administration, advancements in technology and the investment implications of nuclear energy. Thank you NACD for inviting Simon and Terrestrial Energy to participate in an engaging discussion. #NuclearEnergy #EnergySecurity #SMR

Terrestrial Energy was recently featured in "Nuclear Energy is Bankable Again," an op-ed by Todd Abrajano published in @thehill. The article recognizes Terrestrial Energy as a promising publicly traded nuclear company and highlights our commercial IMSR plant project at the @TAMU System's RELLIS campus. We credit our incredible team behind the work and thank you to Todd for the mention. thehill.com/opinion/energy…

On Wednesday, Terrestrial Energy CEO, Simon Irish, joined the "Capitalizing Innovation: How Technologies Come to Market" panel at @NEI's Nuclear Finance Summit in New York City. He, and a panel of his peers, discussed different approaches to bring advanced reactor technologies to commercial markets.

Today, Terrestrial Energy announced the execution of a second Other Transaction Authority (OTA) agreement with the Department of Energy (DOE) - this time for Project TEFLA under the Fuel Line Pilot Program. This agreement represents a critical step forward in advancing our integrated fuel-to-reactor commercialization strategy. Project TEFLA will demonstrate our proprietary IMSR Fuel Salt production technology at pilot scale, using readily available SALEU fuel and leveraging our existing supplier relationships. The fuel produced will directly support our Project TETRA test reactor, creating a seamless pathway from fuel production to reactor operation. "Projects TEFLA and TETRA deliver critical elements on IMSR plant design and operation via an accelerated DOE authorization pathway," said Simon Irish, CEO of Terrestrial Energy. "These programs encompass key technologies for IMSR plant commercialization, from fuel to reactor supply, and demonstrate our commitment to delivering practical, deployable nuclear solutions that strengthen America's energy security." With two active DOE OTA agreements now in place, we're accelerating toward our goal of delivering flexible, clean firm energy through our commercial IMSR plants in the early 2030s. Read the full announcement here: globenewswire.com/news-release/2…

Last week, Sarfraz Taj, VP Business Development, participated in a panel titled Unlocking Nuclear Investment: Tackling the Roadblocks to Deployment at the Projects & Money Conference 2026. “The Terrestrial Energy Integral Molten Salt Reactor (IMSR) Plant unlocks investment into new nuclear through transformative capital efficiency and cost improvement. The IMSR Plant’s low-pressure operation eases design requirements and lowers manufacturing costs, and a long, cost-effective LEU fuel cycle further improves economics. The IMSR Plant delivers best-in-class high-temperature thermal output for industrial processes and for electricity generation at ~50% higher efficiency than legacy plants.” “These are some of the many ways our team is focused on removing roadblocks to commercial scale deployment,” said Sarfraz. Terrestrial Energy is working to swiftly commercialize its IMSR advanced reactor technology in order to deliver clean, reliable, and cost-effective high-temperature industrial heat and electricity at scale.

.@TAMU’s plans to advance small nuclear reactor development, as highlighted in the @HoustonChron, reflect the growing momentum behind advanced nuclear energy in Texas and beyond. We are proud to be part of this effort, working alongside academic and industry partners to develop molten salt reactor technology that can deliver safe, reliable, and emission-free power. Read the full article here: houstonchronicle.com/business/colum…