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HD Hyundai and TerraPower Sign Natrium® Reactor Supply Framework Agreement

The companies said the deal will secure a scalable supply chain and support serial production of Natrium reactor components.

  • On Wednesday, May 20, 2026, TerraPower signed a Natrium Reactor Supply Framework Agreement with HD Hyundai Heavy Industries, establishing a scalable supply chain for serial production of reactor components.
  • Following a year-long joint study evaluating manufacturing feasibility and delivery schedules, the companies expanded their collaboration from First-of-a-Kind production to Nth-of-a-Kind serial manufacturing.
  • The Natrium technology features a 345 MW sodium-cooled fast reactor with patented molten salt storage that boosts output to 500 MW when demand peaks, with Hyundai Engineering joining to manage design, procurement, and construction.
  • TerraPower CEO Chris Levesque stated the agreement ensures production capacity for global plant builds, while HHI executive Kwang-shik Won called it "a critical foundation for our entry into the global nuclear market."
  • The first Natrium plant is under development through the Advanced Reactor Demonstration Program, supporting TerraPower's deployment across the United States and a commitment with Meta for up to eight reactors by 2035.
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HD Hyundai and TerraPower Sign Natrium® Reactor Supply Framework Agreement

Signed Agreement to establish Natrium reactor supply chain for serial production based on a year-long joint studyHD Hyundai selected as a preferred manufacturer to supply Natrium Reactor Enclosure System (RES) components leveraging its world-class fabrication capabilities, industrial production expertise, and…

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PR Newswire broke the news in United States on Wednesday, May 20, 2026.
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