Trump's tariff notice to Seoul fuels push for swift Korea-US summit

Korea's top security adviser Wi Sung-lac, left, shakes hands with U.S. Secretary of State Marco Rubio during a South Korea–U.S. national security advisors' meeting held in Washington, D.C., Monday (local time). Courtesy of the presidential office

After Korea received a letter early Tuesday morning from U.S. President Donald Trump notifying Seoul of a 25 percent tariff set to take effect Aug. 1, attention has shifted to whether a summit between the two leaders can be arranged in time to address the issue at the highest level.

While some have raised concerns about the start of the U.S. congressional summer recess and the logistical hurdles of organizing such a high-level meeting on short notice, others suggest that close coordination between Seoul and Washington could still create an opening for a swift, in-person summit between the two allied leaders.

National Security Adviser Wi Sung-lac, left, stands next to U.S. Secretary of State Marco Rubio in Washington, D.C., Monday (local time). Courtesy of the presidential office

According to Korea’s presidential office, National Security Adviser Wi Sung-lac met with U.S. Secretary of State and National Security Advisor Marco Rubio in Washington, Monday, holding critical bilateral security talks amid escalating trade tensions.

During the meeting, Wi emphasized the need for both countries to reinforce their alliance in tackling shared challenges, stressing that all dialogue must be grounded in a spirit of partnership.

The top security adviser also underscored that an early summit between the leaders of the two countries could yield mutually beneficial outcomes across key areas, a view reportedly shared by the U.S. side.

While the two top national security officials held talks, on Monday (local time) Trump publicly shared a copy of the tariff letter addressed to Lee Jae Myung on his social media platform. Korea was the second in a series of 14 countries to receive such notices that day, including Japan, Malaysia, Cambodia, Thailand and Kazakhstan.

This image, captured from U.S. President Donald Trump’s social media platform, shows a letter dated July 7 (local time) addressed to President Lee Jae Myung. Yonhap

"Our relationship has been, unfortunately, far from Reciprocal. Starting from August 1, 2025, we will charge Korea a Tariff of only 25% on any and all Korean products sent into the United States, separate from all Sectoral Tariffs," Trump wrote on his social media. "Please understand that the 25% number is far less than what is needed to eliminate the Trade Deficit disparity we have with your Country."

The tariff rate for Korea remains unchanged at 25 percent, although the implementation deadline has been extended by three weeks — from July 9 to Aug. 1.

The presidential office views the three-week delay as a sign of Washington’s openness to further negotiations, offering Seoul a crucial window to seek a diplomatic resolution to the trade dispute. With earlier efforts hampered by the recent presidential impeachment and transition of power in Korea, the Korean government is now expected to embark on an intensive round of trade talks in the coming weeks.

Presidential spokesperson Kang Yu-jung speaks during a press briefing at the presidential office in Seoul, Tuesday. Joint Press Corps.

Presidential spokesperson Kang Yu-jung told reporters, Tuesday, that the postponement is seen as evidence that “the worst-case scenario has been avoided,” and emphasized that both nations are maintaining close contact.

“Considering the compressed timeline since the new administration took office, we believe we've successfully avoided the worst possible outcome. National Security Adviser Wi is now continuing high-level discussions in Washington to secure a better result,” Kang said.

She added that Seoul intends to fully leverage this grace period to reduce trade-related uncertainties and resolve the issue through diplomatic channels — potentially including a presidential summit. However, she declined to confirm any specific plans, saying only that the two countries are currently in consultation on the matter.

“In terms of when and how the summit may be scheduled, those details are still under review and [require] coordination between the two countries,” she said.

President Lee Jae Myung talks with U.S. President Donald Trump by phone at the official residence in Seoul, June 6. Yonhap

With Lee’s top priority now to reduce or suspend the planned tariffs within the three-week window, Seoul is hoping that a potential summit could also serve as a platform to address other bilateral issues — including defense cost sharing — in tandem.

Still, some observers note this may reflect Korea’s aspirations, rather than a shared readiness for a summit on the U.S. side.

Doubts remain about whether a meeting can be arranged in time.

One complicating factor is the vacancy at the helm of Korea’s foreign ministry, with Cho Hyun’s confirmation hearing set for July 17. Diplomatic observers note that without a fully staffed foreign policy team and adequate time to prepare, organizing a high-level summit within the next three weeks may prove difficult.

Amid mounting concerns, the Korean government is mobilizing both formal and informal channels in an all-out push to generate diplomatic momentum. The effort carries added weight, as economic revitalization remains central to Lee’s policy agenda.

The appointments of career diplomats to two of the three deputy roles within the National Security Office suggests that the administration is leaning on diplomatic channels to manage ongoing trade disputes.