TerraPower Awards Next Round of Vendor Contracts for Natrium® Reactor, Advances Supply Chain for Kemmerer Unit 1

BELLEVUE, WA – August 31, 2026 – TerraPower, a nuclear innovation company, today announced the selection of 12 supplier awards as it continues to build out the supply chain needed to support its first Natrium plant, Kemmerer Unit 1, and secure American energy dominance for generations. Kemmerer Unit 1 is currently under construction in Wyoming and is the first utility-scale advanced reactor project under construction in the Western Hemisphere.

“Securing supplier contracts is fundamental to establishing the resilient and sustainable supply chain needed to build advanced nuclear plants,” said Pat Young, senior vice president and Natrium project director at TerraPower. “With each contract awarded, we are strengthening our network of qualified partners and ensuring critical milestones are met as we bring the Natrium reactor to market.”

These equipment awards support the construction of the Natrium plant, as well as support completion of the first-of-a-kind sodium test and fill facility that is also being constructed on the Natrium site in Wyoming.

Through these award selections for the first Natrium plant, TerraPower is establishing a resilient and sustainable supply chain to bring a fleet of Natrium reactors online in the coming decade.

Supplier awards include:

• Merrick & Company: Pin Removal Cell Design
• Merrick & Company: Sodium Cover Gas Monitoring Skids Design
• Mirion Technologies Inc.: Plant Cyber System
• BWXT Canada Ltd.: Control Rod Drives Design
• Teledyne Brown Engineering Inc.: Sodium Cover Gas Tag Gas Analysis Cabinet
• Marmen Inc.: Fuel Transfer Lift Design for Manufacturing
• Thermal Engineering International (USA) Inc: Air-Sodium Heat Exchanger
• Jensen Hughes: Drain and Expansion Tanks Design
• Boston Government Services, LLC: Sodium Cover Gas Control Skids Design
• James Fisher Technologies LLC: Ex-Vessel Storage Tank Design
• KROHNE Nuclear: Intermediate Heat Transfer Flow Meters
• Valserve: Intermediate Heat Transfer Drain Valves

Securing contracts up and down the supply chain is critical to ensuring project milestones are met and the U.S. manufacturing base is well positioned to support the exponential growth in advanced nuclear deployment anticipated in the coming decade.

About the Natrium Technology
The Natrium technology is the first mover in the advanced reactor sector and is well positioned to support rapidly increasing energy demand. The Natrium plant design features a 345 MW sodium-cooled fast reactor with a patented molten salt-based energy storage system. The storage technology can boost the system’s output to 500 MW of power when needed as it is designed to keep base output steady, ensuring constant reliability, and can quickly ramp up when demand peaks—it is the only advanced reactor design with this unique feature.

The first Natrium plant is being developed through the U.S. Department of Energy’s Advanced Reactor Demonstration Program (ARDP), a public-private partnership. That project is expected to be completed in 2030 and will be the first utility-scale advanced nuclear power plant in the United States. TerraPower is rapidly commercializing the Natrium technology, which includes an agreement with Meta for up to eight Natrium plants in the United States by 2035.

About TerraPower
TerraPower is a leading nuclear innovation company that strives to improve the world through nuclear energy and science. Since it was founded by Bill Gates and a group of like-minded visionaries, TerraPower has emerged as an incubator and developer of ideas and technologies that offer energy independence, environmental sustainability, medical advancement and other cutting-edge opportunities. It accepts and tackles some of the world’s most difficult challenges. Behind each of its innovations and programs, TerraPower actively works to bring together the strengths and experiences of the world’s public and private sectors to answer pressing global needs. Learn more at terrapower.com.

Press contact
TerraPower – press@terrapower.com