South Korea Weighs Cautious Stance on Proposed Alaska LNG Investment

South Korea is approaching the long-sought Alaska liquefied natural gas (LNG) project with significant caution, even as President Donald Trump highlights it as a cornerstone of Seoul’s proposed $200 billion investment in U.S. energy infrastructure. While Trump announced on Wednesday that the two nations had reached an agreement to advance the $50 billion venture, South Korean President Lee Jae Myung indicated that participation is contingent upon strict financial viability and legal compliance.

The proposed project aims to transport natural gas via an approximately 800-mile pipeline from Prudhoe Bay on Alaska’s North Slope to an LNG terminal in Nikiski in the south. According to the Alaska Gasline Development Corporation, the integrated facility would have an annual production capacity of 20 million metric tons. Industry estimates place the total development cost between $44.5 billion and $54.5 billion, according to Go Katayama, a principal insight analyst at Kpler.

Proponents argue that the project offers strategic logistical advantages. Shipping LNG from Nikiski to South Korea would take roughly seven to nine days, a significant reduction from the 20 to 30 days required for supplies from the U.S. Gulf Coast. Seung Hoon Yoo, a professor at Seoul National University of Science and Technology’s Department of Future Energy Convergence, noted that this shorter route could lower transportation costs and bypass geopolitical chokepoints such as the Strait of Hormuz.

However, experts warn that these shipping savings may be offset by the massive capital expenditure required to construct the pipeline. Kit Ling Wong, head of business intelligence for Asia Pacific at Poten & Partners, stated that the economics of Alaska LNG are likely to be expensive compared to other global projects. “It will not be the cheapest supply for South Korea,” Wong said, adding that LNG from Australia, Qatar, or U.S. Gulf Coast facilities would generally offer lower prices. She highlighted that the capital cost of the Alaska project could fund three separate Gulf Coast developments.

For South Korean buyers, the primary concern is whether the reduced transit time can result in a landed price competitive with alternatives like LNG Canada or U.S. Gulf Coast exports. Concerns also include the risk of cost overruns and the potential burden of locking buyers into long-term contracts as domestic gas demand in South Korea slows. Industry observers suggest that greater certainty regarding project financing, stronger U.S. government support, and opportunities for South Korean firms to participate beyond mere purchasing could be essential to securing broader involvement.