He offered no further details on potential concessions or timelines.
U.S. Trade Representative Jamieson Greer said the United States reduced the rate in exchange for Seoul’s pledge to invest $350 billion in the United States, allow more U.S. cars into South Korea, and eliminate some nontariff barriers.
He said that South Korea had also fallen short on promises related to agriculture, manufacturing, and digital services.
Greer highlighted the swelling U.S. trade deficit with South Korea, which reached $65 billion under the Biden administration.
He said it is “not sustainable” and has to change.
Under terms agreed to in 2025, the United States reduced tariffs on Korean goods from 25 percent to 15 percent in exchange for expanded market access in South Korea for U.S. vehicles, barrier reductions, and a massive investment commitment.
Kim Hyun-jung, a South Korean Democratic Party spokesperson, said on Jan. 27 that five bills are before the National Assembly and have bipartisan support from the People Power Party, which is currently the second-largest party in the legislature and the main opposition party.

“Since President Trump has not mentioned the timing of the tariff increase, the key question is how quickly follow-up legislation and support systems, such as special laws, can be established to support the implementation of the Korea–U.S. agreement,” Kim said.
The South Korean Democratic Party spokesperson said the party looked forward to bipartisan cooperation with the People Power Party.
In a separate statement, People Power Party spokesperson Choi Bo-yoon criticized the current South Korean presidency for entering into the trade agreement without sufficiently addressing the necessary steps to ratify the agreement.
“Since the Korea–U.S. tariff agreement was signed, the People Power Party has repeatedly emphasized that National Assembly ratification must take precedence, given its significant impact on national finances, key industries, and trade sovereignty,“ Choi said. ”However, the ruling party has staunchly ignored National Assembly ratification.”
The South Korean president’s office said Industry Minister Kim Jung-kwan and Trade Minister Yeo Han-koo will travel to the United States to meet with their respective U.S. counterparts, Commerce Secretary Howard Lutnick and Greer.
“The government will convey its commitment to implementing the deal to the U.S. side,” South Korean presidential spokesperson Kang Yu-jung told Yonhap News Agency on Jan. 26.
The White House has not specified when the higher duties might be imposed and did not return a request for comment by publication time.







