SINGAPORE — South Korea has unveiled an initial roadmap for the development of nuclear-powered submarines, targeting the deployment of the first vessel in the mid-2030s, according to the country’s defense minister.
Ahn Gyu-back announced the timeline during a press briefing at the South Korean naval base in Jinhae, stating the nation aims to “launch the first nuclear-powered submarine in the mid-2030s, and advance development toward entering operational service in the latter half of the 2030s or beyond.”
The Ministry of National Defense (MND) published the “Basic Plan for the Development of Nuclear Submarines for the Republic of Korea,” detailing the project designated as the “Jang Bogo N Project.” The initiative will be developed and constructed domestically using indigenous technologies, including nuclear reactors and the vessels’ energy conversion systems.
Described as a “national strategy project,” the plan emphasizes that nuclear-powered submarines offer significantly enhanced operational capabilities compared to diesel-electric submarines, particularly in underwater endurance and mobility.
“[They] will play a core role in responding to threats such as North Korea’s submarine-launched nuclear and missile threats,” the plan stated.
To address nuclear non-proliferation and safety concerns, the plan reaffirms South Korea’s commitment to neither seeking nor developing nuclear weapons. It will implement nuclear non-proliferation obligations when acquiring low-enriched uranium from the United States and establish safeguards in coordination with the International Atomic Energy Agency.
South Korea has pursued nuclear-powered submarines for over three decades and recently secured approval from former U.S. President Donald Trump for U.S. nuclear propulsion technology.
The country has also been advancing nuclear-powered commercial shipping, including obtaining certification for a nuclear-powered liquefied natural gas carrier and deploying Small Modular Reactors for marine propulsion.
The MND estimates the program will generate over 40,000 jobs across South Korea’s shipbuilding, nuclear, and defense sectors, with the submarines expected to remain in service for 30 years.
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