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Trump says South Korea can build nuclear-powered submarine, trade agreement reached

6:29
What's at stake in Trump's meeting with China's Xi
Mark Schiefelbein/AP
BySelina Wang, Rachel Scott, Hannah Demissie, Hakyung Kate Lee, and Isabella Murray
October 29, 2025, 9:51 PM

President Donald Trump said he approves of South Korea building a nuclear-powered submarine -- a permission that comes after he and President Lee Jae Myung reached a trade agreement during a bilateral meeting on Wednesday.

Trump said during the meeting several economic promises were made on the part of South Korea.

"Our Military Alliance is stronger than ever before and, based on that, I have given them approval to build a Nuclear Powered Submarine, rather than the old fashioned, and far less nimble, diesel powered Submarines that they have now. A great trip, with a great Prime Minister!” Trump posted on his social media platform on Wednesday. 

Trump added that the submarine will be built in the U.S. The Philly Shipyard, where Trump said construction will take place, is located in Philadelphia, Pennsylvania, and was acquired last year by the Korean company Hanwha Group.

President Donald Trump salutes as he and South Korean President Lee Jae Myung walk along an honor guard during a welcome ceremony at the Gyeongju National Museum in Gyeongju, South Korea, Oct. 29, 2025.
Mark Schiefelbein/AP

The economic agreements that Trump said were made during the meeting Wednesday include South Korea paying the U.S. $350 billion in exchange for the Trump administration granting the country a lower tariff rate.

Currently in South Korea meeting with the country’s leaders during the Asia-Pacific Economic Cooperation (APEC) forum, Trump also said that South Korea agreed to buy U.S. oil and gas in "vast quantities," with those investments that will "exceed" $600 billion. 

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After the meeting, President Lee’s chief of staff said the tariffs the U.S. imposes on automobile exports will be lowered to 15% from 25%. The framework deal from July lowered the reciprocal rate to 15% and that will be maintained. 

Back in July, South Korea pledged to invest $350 billion into the U.S. Lee's chief of staff said a $200 billion investment will be made in installments of up to $20 billion cash payments each year. Another $150 billion will be invested in the U.S. shipbuilding industry. 

President Donald Trump and South Korean President Lee Jae Myung leave after a high honor presentation ceremony at the Gyeongju National Museum in Gyeongju, October 29, 2025.
Andrew Caballero-Reynolds/AFP via Getty Images

This now puts the auto tariffs South Korea will pay in line with those on Japan.  

The White House has not responded to a request for comment about the tariffs, but released a fact sheet with more details of the trade deal.

It includes a commitment from Korean Air to purchase 103 new Boeing aircraft for $36.2 billion, a move that is expected to support up to 135,000 jobs in the U.S. The Republic of Korea Air Force will invest $2.3 billion to develop its aircraft with an American technology company.

President Donald Trump is presented with the Grand Order of Mugunghwa and the Silla gold crown by South Korean President Lee Jae Myung at the Gyeongju National Museum, October 29, 2025 in Gyeongju, South Korea.
Andrew Harnik/Getty Images

Plus, the White House said it has secured key investments that solidify the United States as a global energy leader, including South Korean purchases of American liquid natural gas and a $3 billion investment in U.S. power-grid infrastructure.

Earlier on Wednesday, the South Korean president greeted Trump with flattery and gifts, including a replica of the ancient gold crown from the Silla dynasty. Their meeting was held in Gyeongju, South Korea, which was the capital of the ancient Silla Kingdom. 

Trump was also awarded the Grand Order of Mugunghwa, South Korea’s highest honor. Trump is the first U.S. president to receive the honor.

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