DAVIDSON, N.C. – Curtiss-Wright Corporation (NYSE: CW) today announced that it has transitioned from Design to Prototype Manufacturing of Helium Circulator Systems and Reactivity Control and Shutdown Systems, both pivotal components in X-energy’s Xe-100 advanced High Temperature Gas-cooled Reactor (“HTGR”).

The Helium Circulator System is integral to the reactor's functionality, efficiently circulating helium throughout the primary system. This process is crucial for transferring thermal energy from the reactor core to the steam generator, enabling conversion into electrical power, optimizing process heat usage, and enabling effective residual heat removal.

Complementing this, the Reactivity Control and Shutdown System is designed to regulate temperature and provide an independent and reliable method to safely shut down the reactor during operation. It features two separate rod banks, each equipped with essential control rod drive mechanisms and controls.

“We are proud to continue our partnership with X-energy and help support the transition from development to the initial prototype stage for the Xe-100 advanced reactor program," said Lynn M. Bamford, Chair and CEO of Curtiss-Wright Corporation. “The manufacturing and testing of these prototype units represents a meaningful step forward and signifies Curtiss-Wright’s ongoing commitment to advancing innovation in energy technology.”

Curtiss-Wright is a key partner in X-energy's global deployment strategy, leveraging its specialized capabilities and expertise to support execution of X-energy’s commercial pipeline.

X-energy's Xe-100 is a Generation IV HTGR optimized to deliver 80 megawatts (MW) of electric power per unit, or 320 MW per four-unit plant. The reactor can provide clean, reliable, and safe baseload power to an electricity system or support various industrial applications. In addition, X-energy’s advanced reactor technology offers remarkable efficiency and resiliency to meet the requirements of energy-intensive data centers.

X-energy is developing its initial Xe-100 plant at Dow Inc.’s UCC Seadrift Operations manufacturing site on the Texas Gulf Coast. X-energy is also advancing plans to develop up to 12 units, or 960 MW, with Energy Northwest in Washington state as the first project of Amazon’s announced 5 GW deployment target of new Xe-100 projects.

For more information on Curtiss-Wright’s Commercial Nuclear Power & Process solutions, please visit https://curtisswright.com/markets/power-process..

About Curtiss-Wright Corporation

Curtiss-Wright Corporation (NYSE: CW) is a global integrated business that provides highly engineered products, solutions and services mainly to Aerospace & Defense markets, as well as critical technologies in demanding Commercial Nuclear Power, Process and Industrial markets. We leverage a workforce of approximately 9,100 highly skilled employees who develop, design and build what we believe are the best engineered solutions to the markets we serve. Building on the heritage of Glenn Curtiss and the Wright brothers, Curtiss-Wright has a long tradition of providing innovative solutions through trusted customer relationships. For more information, visit www.curtisswright.com.

This press release contains forward-looking statements made pursuant to the Safe Harbor provisions of the Private Securities Litigation Reform Act of 1995. Such statements, including statements relating to Curtiss-Wright Corporation's expectations of future performance of our system designs for this X-energy nuclear program, the continued relationship with a new customer, the successful implementation and the success of this reactor program and future opportunities associated with this program, are not considered historical facts and are considered forward-looking statements under the federal securities laws. Such forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially from those expressed or implied. The Company assumes no obligation to update any forward looking information contained in this press release. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. Such risks and uncertainties include, but are not limited to: a reduction in anticipated orders; a delay in the development of small modular reactor programs; an economic downturn; changes in competitive marketplace and/or customer requirements; a change in US and Foreign government spending; an inability to perform customer contracts at anticipated cost levels; and other factors that generally affect the business of aerospace, defense contracting, marine, electronics and industrial companies. Please refer to the Company's current SEC filings under the Securities Exchange Act of 1934, as amended, for further information.

Cheswick, PA – March 25, 2026 – Curtiss-Wright today announced that it has signed a Teaming Agreement with Hanwha Ocean of Korea for long-term cooperation on the Canadian Patrol Submarine Project for Towed Array Handling Systems to support KSS-III submarines. Work under this agreement will be performed by Curtiss-Wright Electro-Mechanical Systems, based in Mississauga, Ontario, Canada.

“We are proud to further our partnership with Hanwha Ocean through this Teaming Agreement. Leveraging our long-proven Canadian expertise in complex systems integration and advanced handling equipment, we are pleased to support next-generation submarine systems with international partners, expanding high-value engineering and manufacturing work in Mississauga while developing Canada’s broader defense industrial capacity,” said David Micha, Sr. Vice President & General Manager, Curtiss-Wright Electro-Mechanical Systems.

Curtiss-Wright has supplied the Towed Array Handling Systems to the KSS-III submarine, one of the most capable ocean-going, diesel-electric platforms, to the Republic of Korea Navy since 2011. KSS-III is an in-service platform that meets all the Royal Canadian Navy’s operational requirements and the urgent delivery timeline for the Canadian Patrol Submarine Project.

“These partnerships reflect our long-term commitment to working alongside Canadian industry to deliver meaningful and lasting value. By partnering with leading Canadian companies across critical capability areas, we are not only strengthening Canada’s defense industrial base, but also supporting innovation, advanced manufacturing, and the development of a highly skilled workforce. We see this as part of a broader effort to contribute to Canada’s long-term economic growth and sovereign defense capability, aligned with the country’s national priorities.”– Glenn Copeland, CEO, Hanwha Defence Canada

Curtiss-Wright is a leading manufacturer of naval helicopter handling systems, undersea sensor handling and deployment systems, and ship aviation support systems for major naval defense programs. Curtiss-Wright has secured contracts globally, supporting navies in the United States, Canada, Japan, Italy, Australia, Chile, India, Singapore, Spain, and Turkey.

For more information on Curtiss-Wright naval aircraft handling systems, please visit https://electro-mechanicalsystems.curtisswright.com/indal..

About Curtiss-Wright Corporation

Curtiss-Wright is a global integrated business that provides highly engineered products, solutions and services mainly to Aerospace & Defense markets, as well as critical technologies in demanding Commercial Nuclear Power, Process and Industrial markets. We leverage a workforce of approximately 9,100 highly skilled employees who develop, design and build what we believe are the best engineered solutions to the markets we serve. Building on the heritage of Glenn Curtiss and the Wright brothers, Curtiss-Wright has a long tradition of providing innovative solutions through trusted customer relationships. For more information, visit www.curtisswright.com.

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