Trump Announced an $8.4 Billion Korean Investment. Seoul Says It Never Agreed — and Its Own Review Rejected the Project.

On October 2, Trump posted the number on Truth Social.

“I am pleased to announce that our negotiations with South Korea continue to get better and better,” he wrote. “$8.4 billion for Enhanced Oil Recovery projects.”

The post read as a deal closed: South Korea putting billions into American oil production after talks with Washington.

Seoul did not read it that way.

What the Project Is

The project behind the number has been identified as the Midwest Carbon Express, a carbon capture, utilization, and storage plan from Summit Carbon Solutions.

• Capture carbon dioxide from ethanol plants across the US Midwest
• Pipe it about 1,800 miles to Wyoming
• Inject it into underground oil fields to push out more crude — enhanced oil recovery

The US government put the project in front of Korea in May as a leading candidate for Korea’s investment commitments to the United States.

What Seoul Says

South Korea’s position is that it has no agreed investment with the US beyond the three strategic US investment projects it has already announced.

On this one, the government went further. It reportedly had a major Korean accounting firm examine the pipeline’s feasibility in detail, concluded it lacked “commercial rationality,” and effectively turned it down.

Industry analysts point to the same problem: very high upfront construction costs and weak investment stability. Large CO2 pipelines in the US have also faced years of permitting fights and landowner opposition in the states they cross.

This is the same sequence as Alaska last month: Trump names a Korean investment in a specific American project, and Seoul answers that money only moves if the returns justify it. The pattern comes from the structure of the tariff deal. Korea’s $350 billion pledge, made in January in exchange for cutting reciprocal tariffs from 25% to 15%, is a total, not a list. Washington wants to fill it with projects that fit its priorities — energy, and this time a pipeline across the farm states that matter in November. Seoul wants to fill it with projects its companies can defend to shareholders. Every Truth Social announcement that gets ahead of Seoul is a negotiating move to make a project feel decided before it is. Each correction from Seoul is a reminder that the pledge is not a blank check.

Why This Project, and Why Now

The pipeline’s route runs through the Corn Belt, collecting carbon from ethanol plants — the industry that buys a large share of the corn crop. Iowa, home to many of those plants, has a Senate seat and three House districts in play on November 3, and was the site of Trump’s $15 billion steel mill announcement four days earlier.

A foreign-funded pipeline that pays ethanol plants for their carbon and feeds Wyoming oil fields would be a campaign asset in both places. That gives Washington a reason to announce it whether or not Seoul has agreed.

The Other Side

Negotiations are ongoing, and Trump may be announcing where he expects them to land. Korea’s pledge does commit it to large US investments, and Washington has the right to push for its priorities within it. Seoul’s “no agreement beyond the three projects” is also a negotiating stance, not necessarily a final answer. The accounting review reflects one assessment at one point in time; terms, subsidies, or US guarantees could change the economics.