Terrestrial Energy Signs Agreement with Hatch for IMSR Power Plant Engineering and Construction Services

Oakville, Ontario, Canada – May 4, 2021 – Hatch and Terrestrial Energy have signed an engineering services contract to support deployment of the Integral Molten Salt Reactor (IMSR), a Generation IV nuclear power plant. The scope of the agreement includes support for engineering, component procurement, project and construction management, and power plant cost estimation relating to the development and construction of an IMSR power plant. Services will be provided by a team of Hatch engineers based in Ontario.

Hatch is a global employee-owned engineering, project management, and professional services firm with headquarters in Mississauga, Ontario. Its engineering expertise covers a comprehensive range of technical and strategic project services, including project definition, architecture, engineering, digital solutions, procurement, project and construction management, and commissioning. Hatch recognizes that Small Modular Reactors (SMR) have an important role to play in a clean energy transition.

“Terrestrial Energy’s IMSR, a Generation IV SMR, has the potential to displace carbon-intensive energy sources and play an important role in Canada’s clean energy transition,” said Amar Jolly, Global Director, Nuclear Power at Hatch. “Hatch is committed to supporting Terrestrial Energy and IMSR development with expert engineering services as the project moves forward to first deployment.”

“Ontario is home to world class nuclear engineering and project management firms. That expertise is important to Terrestrial Energy as we progress to detailed pre-construction engineering and project planning for IMSR deployment,” said Simon Irish, CEO of Terrestrial Energy. “Hatch has supported industrial innovation for 65 years, and we are pleased to be advancing IMSR development with Hatch as a key project team member.”

About Terrestrial Energy

Terrestrial Energy is a developer of Generation IV advanced nuclear power plants that use its proprietary Integral Molten Salt Reactor (IMSR®) technology. IMSR® technology represents true innovation in cost reduction, versatility and functionality of nuclear power plants. IMSR® power plants will provide zero-carbon, reliable, dispatchable, cost-competitive electric power and high-grade industrial heat for use in many industrial applications, such as chemical synthesis and desalination, and in so doing extend the application of nuclear energy far beyond electric power markets. They have the potential to make important contributions to industrial competitiveness, energy security, and economic growth. Their deployment will support rapid global decarbonization of the primary energy system by displacing fossil fuel combustion across a broad spectrum. Using an innovative design, and proven and demonstrated molten salt reactor technology, Terrestrial Energy is engaged with regulators and industrial partners to complete IMSR® engineering and to commission first IMSR® power plants in the late 2020s.

About Hatch

Hatch is a global engineering, project management, and professional services firm. Whatever our clients envision, our teams can deliver. With over six decades of business and technical experience in the energy, infrastructure, and mining sectors we understand that your challenges are changing rapidly. Few firms can match our deep subject matter expertise, strongly differentiated engineering, and project implementation capabilities, as well as first-of-a-kind technology implementation track record. Our solutions are innovative,

timely, and more efficient. We draw upon 9,000 staff, deployed on all continents, with experience in over 150 countries to challenge the status quo and create positive change for our clients, employees, and the communities we serve. See: https://www.hatch.com