Trump threatens tariff hikes on South Korea over stalled trade deal approval

475 people were detained during an immigration raid at a Hyundai manufacturing site in Georgia last year.
Trading partners need to match the speed with which America reduces tariffs
Trump's justification for raising tariffs on South Korean goods while his own tariff reductions were already in effect.
Mark

So Trump is essentially punishing South Korea for not moving fast enough on a deal they both agreed to?

Mimi

That's the shape of it, yes. He imposed tariffs unilaterally in the U.S., but South Korea's legislature has to vote. He's now raising those tariffs to pressure them to vote faster.

Luke

But we should be clear: the bills are already in committee. South Korea isn't dragging its feet out of bad faith—they're following their own constitutional process. The question is whether Trump accepts that other countries have different approval timelines.

Mark

What's the actual leverage here? If he raises tariffs, doesn't that hurt American importers and consumers too?

Mimi

It does. But Trump's argument is that the pain is temporary—that once South Korea approves the deal and commits the $350 billion investment, the tariffs come down and everyone benefits.

Luke

That's the theory. But we've seen this pattern repeat with Europe and Canada. He threatens, sometimes backs down, sometimes doesn't. And many of his deals haven't been finalized yet. So there's a real question about whether this is negotiating or just disruption.

Mark

The raid at the Hyundai plant—475 people detained. Does that factor into why South Korea might be moving cautiously?

Mimi

It's hard to say directly, but it certainly didn't help the relationship. It signaled that even major South Korean employers operating in the U.S. weren't safe from enforcement actions.

Luke

Right. And that's worth noting: the tariff threat exists in a context where trust is already damaged. South Korea is trying to cooperate, but they're also dealing with the fact that the U.S. just detained nearly 500 of their citizens at a factory.

Mark

So what happens next?

Mimi

South Korea's ministers are heading to Washington to talk. The bills are being fast-tracked through committee. It's a race against Trump's patience.

Luke

And if they don't move fast enough? We don't know. But the pattern suggests he'll keep raising the pressure.

  • Trump's tariff announcement landed without warning, threatening to upend a trade relationship that both governments had publicly celebrated as a success just months earlier.
  • South Korea's National Assembly, bound by its own constitutional process, has not yet approved the investment framework — a procedural gap that Trump is now treating as a breach of good faith.
  • Seoul scrambled to respond, dispatching two senior trade ministers to Washington while lawmakers fast-tracked five investment bills through committee review in an effort to demonstrate urgency.
  • The tariff threat follows a volatile pattern — Trump recently threatened 100 percent duties on Canada and tariffs on eight European nations, only to retreat from both after diplomatic engagement.
  • Beneath the trade dispute lies deeper friction: last year's immigration raid on a Hyundai plant in Georgia, where 475 people were detained, signals that the bilateral relationship carries tensions that extend well beyond tariff schedules.

In the shifting architecture of global trade, President Trump has once again reached for the tariff lever — this time aimed at South Korea, whose legislature has yet to formally ratify a $350 billion investment framework first announced last July. The move raises rates on automobiles, lumber, and pharmaceuticals while pushing general import duties from 15 to 25 percent, a pressure campaign that mirrors similar ultimatums recently directed at Canada and Europe. At its core, this is a story about the friction between democratic deliberation and executive impatience — between the pace of legislative process and the speed of geopolitical dealmaking.

President Trump announced on Monday that he would raise tariffs on South Korean goods, targeting automobiles, lumber, and pharmaceuticals while lifting general import rates from 15 to 25 percent. The trigger, according to Trump, was Seoul's failure to secure legislative approval for a trade framework first unveiled last July and reaffirmed during his October visit to South Korea — a deal centered on a $350 billion South Korean investment in the American economy, with a focus on revitalizing U.S. shipyards.

The disconnect between the two governments is partly structural. Trump imposed his initial tariffs by declaring an economic emergency, bypassing Congress entirely. South Korea, by contrast, requires its National Assembly to formally ratify such agreements — a process that moves on its own timeline. Lawmakers have submitted five bills outlining the investment package, currently under finance committee review, with officials indicating they may be consolidated before advancing to floor votes.

Seoul moved swiftly to contain the damage, announcing that Industry Minister Kim Jung-Kwan would travel to Washington to meet with Commerce Secretary Howard Lutnick, while Trade Minister Yeo Han-koo would separately engage U.S. Trade Representative Jamieson Greer. South Korea's Democratic Party pledged to coordinate with the government to accelerate the bills, though the timeline remains unresolved.

The episode fits a recognizable pattern. Within the same week, Trump had threatened 100 percent tariffs on Canada over its China ties — then retreated after Davos meetings — and had similarly threatened European nations over Greenland before pulling back. Many of his most prominently announced trade frameworks, including a 15 percent tariff deal with the European Union, remain unapproved. The South Korean situation adds another chapter to a negotiating style defined by escalation, retreat, and the persistent use of tariffs as a tool of coercion rather than conclusion.

On Monday, President Trump announced he would raise tariffs on South Korean goods, citing the country's failure to win legislative approval for a trade framework that was first announced last July and reaffirmed during his visit to Seoul in October. The new tariffs would target automobiles, lumber, and pharmaceutical products specifically, while rates on all other South Korean imports would climb from 15 percent to 25 percent. Trump posted on social media that the move was necessary because trading partners needed to match the speed with which the United States had already reduced its own tariffs under the agreement.

The framework at the center of the dispute centers on a South Korean commitment to invest $350 billion in the American economy over several years, with particular emphasis on revitalizing U.S. shipyards. Trump had previously imposed the initial tariffs by declaring an economic emergency and bypassing Congress—a power he had already wielded to reshape trade relationships. South Korea, by contrast, required its National Assembly to formally approve the deal, a process that has moved more slowly than Trump's timeline apparently allows.

South Korea's government moved quickly to respond. The presidential office announced that Industry Minister Kim Jung-Kwan would travel to the United States to meet with Commerce Secretary Howard Lutnick, while Trade Minister Yeo Han-koo would separately meet with U.S. Trade Representative Jamieson Greer. The South Korean side emphasized its commitment to implementing the agreement. Lawmakers had already submitted five bills to the National Assembly outlining the investment package, and these proposals were currently under review by the finance committee. Officials indicated the bills would likely be consolidated into a single measure before advancing to floor votes in both the finance and judiciary committees.

The tariff threat fit a broader pattern of Trump's approach to trade negotiations. Just days earlier, he had threatened 100 percent tariffs on Canadian goods if Canada pursued deeper trade ties with China, only to walk back that ultimatum after meetings at the World Economic Forum in Davos. The previous week, he had threatened tariffs on eight European nations over Greenland, another threat he later retreated from. Yet the European Parliament had not yet approved a Trump-backed trade deal that would impose 15 percent tariffs on the majority of goods from the European Union's 27 member states—a reminder that many of Trump's heavily promoted trade frameworks remained incomplete.

The relationship between the United States and South Korea had been strained at points. Immigration officials had raided a Hyundai manufacturing facility in Georgia the previous year, resulting in 475 people being detained. That incident had underscored tensions beneath the surface of the formal trade negotiations. Now, with tariffs on the table and legislative approval still pending in Seoul, the two countries faced a test of whether the framework could be finalized before Trump's trade pressure escalated further. South Korea's Democratic Party spokesperson said his party would coordinate with the government to move the bills through debate and action swiftly, but the timeline remained uncertain—and Trump's willingness to use tariffs as leverage suggested that patience was not a feature of his negotiating strategy.

Our Trade Deals are very important to America. In each of these Deals, we have acted swiftly to reduce our tariffs in line with the transaction agreed to. We, of course, expect our Trading Partners to do the same.
— President Trump, on social media
South Korea's governing Democratic Party will coordinate with the government to organize swift debate and action on the bills.
— Kim Hyun-jung, spokesperson for South Korea's Democratic Party
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