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South Korea’s Hanwha Says Its Philly Shipyard Can Build Nuclear Submarines for US Navy

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Hanwha Group’s global strategy chief has declared that its Philly Shipyard in Pennsylvania is ready and capable of constructing nuclear-powered submarines for the U.S. Navy. The statement comes as the South Korean industrial giant embarks on a major expansion of the American yard, aligning with Washington’s push to bolster its submarine industrial base.

In a bold declaration that signals both capability and ambition, a top executive from South Korea’s Hanwha Group has stated that its American shipyard is prepared to enter one of the most complex and secretive domains of military manufacturing: nuclear submarines. Alex Wong, global chief strategy officer at Hanwha Group, announced that the company’s Philly Shipyard possesses the potential to build Virginia-class attack submarines for the U.S. Navy. “We stand ready to fulfil the ability to build those submarines here in Philly when the governments are ready,” Wong said during a media event, according to a company statement reported by Reuters.

This proclamation is not made in a vacuum. It arrives amidst a significant push by the United States to revitalize and expand its domestic shipbuilding and submarine industrial capacity, a key priority for the U.S. Navy as it seeks to counter naval advancements by China and Russia. Hanwha’s confidence is backed by tangible action; the South Korean conglomerate is actively recruiting talent with expertise in Virginia-class submarine construction, executives revealed. This move directly addresses a critical bottleneck for the U.S.—a shortage of skilled labor and production capacity that has hindered the rate of submarine delivery.

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The context for this expansion is a broader economic and strategic partnership. Last month, South Korea pledged a massive US$150 billion investment into the U.S. shipbuilding sector as part of a trade deal. Hanwha is at the forefront of this commitment. The company purchased the Philly Shipyard in 2024 for US$100 million and is now planning a US$5 billion expansion, a figure highlighted by former President Donald Trump during a recent press conference. Trump noted Hanwha’s planned participation in building new frigates and called the company “a good company,” underscoring the political and economic alignment.

Executives at the media day provided further details on the shipyard’s growth plans. Jongwoo Cho, head of shipyard operations at Hanwha Philly Shipyard, stated that the company is in talks with potential partners to acquire additional land or a dock to facilitate the expansion, reported Reuters. While Cho did not elaborate, such infrastructure is essential for taking on massive projects like nuclear submarine construction, which requires dedicated, secure building halls and deep-water access.

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While the statement from Alex Wong is a powerful signal of intent, actually building a nuclear submarine involves navigating an extremely high barrier of entry. It requires not just physical infrastructure and skilled workers, but also the transfer of profoundly sensitive nuclear propulsion technology and secret combat system designs—a process governed by strict U.S. national security laws (ITAR). However, Hanwha’s move indicates a long-term strategic bet. By positioning the Philly Shipyard as a potential new node in the U.S. submarine industrial base, the company aligns itself with a critical Pentagon priority, aiming to transform an American commercial yard into a cornerstone of future naval power.

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