Trump’s Alaska Liquefied Natural Gas (LNG) Announcement Sparks Korea-U.S. Investment Dispute

On September 30, 2026, President Donald Trump announced that South Korea would invest roughly $54 billion in the Alaska LNG project and warned that if Seoul did not sign soon, the United States would “double it up,” implying a higher Korean burden. The comment was made during an Oval Office briefing with Alaska Governor Mike Dunleavy and several cabinet secretaries.

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The dispute follows a U.S.–Korea investment framework announced in 2025, under which Seoul pledged $350 billion for strategic projects in the United States. The first concrete step was a $22.3 billion gas-fired power plant in Texas. The Alaska LNG pipeline—about 800 miles from the North Slope to a coastal liquefaction facility—was listed only as a subject for further review in the joint fact sheet released by the two governments.

Alaska LNG dispute threatens to stall Korea-U.S. security talks

The White House framed the comment as a push for a swift decision ahead of the November 2026 midterms, where Alaska’s Senate race is unusually competitive. South Korea’s Ministry of Trade, Industry and Energy countered that only the agreements detailed in the joint fact sheet are binding and that no decision on the Alaska project’s scale or financing has been made. Minister Kim Jung-kwan said Seoul is still assessing commercial viability and legal compliance.

Alaska LNG dispute threatens to stall Korea-U.S. security talks

• $54 billion – Trump’s claimed Korean investment in Alaska LNG.

Alaska LNG dispute threatens to stall Korea-U.S. security talks

• $50 billion – Alternative figure cited in some U.S. statements.

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• $22.3 billion – Approved Texas gas-fired power plant.

Alaska LNG dispute threatens to stall Korea-U.S. security talks

• $350 billion – Total Korean investment pledged for U.S. projects.

Alaska LNG dispute threatens to stall Korea-U.S. security talks

• Potential tariff increases mentioned by Trump range from 150 % to 300 % on Korean imports if the LNG deal is not finalized.

Trump says Korea could pay 'double' if it doesn't sign on to $50B Alaska LNG deal

The disagreement threatens to stall the Korea-U.S. security dialogue that underpins Korean plans for nuclear-powered submarines and uranium enrichment. Analysts note the timing aligns with the 2026 midterms, where a high-profile investment announcement could be leveraged politically. Ambiguity over “double it up”—whether a larger investment commitment or punitive tariffs—creates uncertainty for Korean exporters and could reignite broader trade tensions.

Trump says Korea could pay 'double' if it doesn't sign on to $50B Alaska LNG deal

• Investment amount: Trump cited $54 billion; Korean officials say no final figure is agreed.

Alaska LNG dispute threatens to stall Korea-U.S. security talks

• Scope of “doubling”: U.S. media speculate it refers to tariffs; the President did not specify.

Trump says Korea could pay 'double' if it doesn't sign on to $50B Alaska LNG deal

• Legal authority: The International Emergency Economic Powers Act, previously used for tariff threats, was ruled invalid by the Supreme Court, leaving unclear which legal pathway could be employed.

Trump says Korea could pay 'double' if it doesn't sign on to $50B Alaska LNG deal

• “If they don't want to do it, that's OK with me. I'll just charge them more,” — Donald Trump

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• “Progress on [Korea’s] strategic investment in the United States has created momentum to pursue follow-up consultations in all areas of the joint fact sheet,” — Foreign Minister Cho Hyun

Alaska LNG dispute threatens to stall Korea-U.S. security talks

Korean officials have indicated an intention to “restart security consultations soon,” aiming to separate the LNG dispute from broader strategic talks. The United States has not set a formal deadline for a Korean decision, but pressure is expected to continue through the election cycle.

Alaska LNG dispute threatens to stall Korea-U.S. security talks