Terrestrial Energy Board Adds Industry Veteran Kathryn McCarthy; Announces Second Quarter 2026 Earnings Release and Conference Call Date

Terrestrial Energy Inc. (NASDAQ: IMSR), a developer of small modular nuclear power plants using its Generation IV Integral Molten Salt Reactor (IMSR), today announced that industry veteran Kathryn McCarthy has been appointed to the Board of Directors.

“Kathy has decades of leadership in major nuclear science and technology projects at the nation's leading national laboratories. Her experience with the delivery of large-scale projects brings further expertise to the Company as it moves ahead with project execution and IMSR plant commercial deployment,” said Simon Irish, Terrestrial Energy CEO. “We welcome Kathy to the Company and look forward to her playing an important role.”

“Terrestrial Energy is at the forefront of the nuclear sector at a time when nuclear plant innovations and developments can deliver exceptional improvements in the performance and application of nuclear energy supply. I look forward to drawing on my many years in nuclear technology development to assist in moving the Company's IMSR plant to commercial markets,” said McCarthy.

McCarthy led U.S. participation in the international ITER project, the world's leading fusion energy project, as Director of the US ITER Project Office at Oak Ridge National Laboratory, where she also served as Associate Laboratory Director for the Fusion and Fission Energy and Science Directorate. Previously, she served as Vice-President, Science & Technology and Laboratory Director at Canadian Nuclear Laboratories.