Some officials in South Korea say agreeing to the pipeline investment might placate the U.S., but Trump is still threatening tariffs.

President Donald Trump pointed to South Korea as a country with more unfair tariffs against American products than China, while slamming the handing out of subsidies for foreign chipmakers like Samsung Electronics Co.

Japan, South Korea and other countries want to partner with the United States in a "gigantic" natural gas pipeline in Alaska, U.S. President Donald Trump said on Tuesday, claiming they would invest "trillions of dollars each.

Alaska political leaders on Wednesday broadly welcomed President Donald Trump’s remarks to Congress talking up the prospects of the state’s long-sought but faltering natural gas pipeline. In his speech to a joint session of Congress on Tuesday night,

The $44 billion Alaska LNG project, which U.S. President Donald Trump touted Japan, South Korea and other nations “want to invest trillions of dollars each,” involves constructing a 1,300-km pipeline from Alaska’s North Slope to the southern coast.

Different versions of the Alaska LNG project have been discussed in Alaska for decades, and there are longstanding questions about how it would pencil out.