# South Korea-U.S. economic and energy investment cooperation > Live situation record from CLSTR: https://clstr.news/situations/south-korea-us-economic-and-energy-investment-cooperation > Updated: 2026-09-10T15:26:27.000Z. Sources: 17. Developments: 3. Economic cooperation between South Korea and the United States has expanded through significant investments in technology and energy sectors. In early September 2026, four American companies in the semiconductor, advanced materials, and clean energy sectors announced a combined $2 billion in foreign direct investment into South Korea. These projects include expanding semiconductor gas supply facilities, ion implantation equipment manufacturing, advanced material production for mobile devices, and a 3.2GW offshore wind farm project. Developments regarding a $22.3 billion South Korean investment in a 6.3-gigawatt gas-fired power plant in Encinal, Texas, have progressed. Designed to meet electricity demands for artificial intelligence data centers, this initiative is reportedly the first major project under a broader bilateral trade framework. Under this framework, South Korea has pledged $350 billion in total U.S. investments—with a strategic investment portion valued at approximately $200 billion—in exchange for favorable import tariffs. New details indicate South Korea is preparing to announce over $100 billion in U.S. energy projects, specifically targeting eight nuclear power plants and a natural-gas project in Texas. The nuclear initiatives may utilize a combination of technologies, potentially employing the AP1000 design from Westinghouse Electric alongside South Korean-developed APR1400 designs from Kepco. These moves follow a broader trade agreement where South Korea pledged $350 billion in investments to secure a reduction in U.S. tariff rates on most South Korean imports from 25 percent to 15 percent. To manage these strategic investments, South Korea has established a state-run corporation to coordinate with the U.S. government. ## Claims - South Korea and the United States have reached an agreement regarding a planned $22.3 billion investment in a Texas gas project. (disputed by 4 sources) - The South Korean Industry Ministry stated that reports regarding the Texas gas project were inaccurate and that consultations are ongoing. (disputed) - The project involves constructing a 6.3-gigawatt gas plant in Encinal, Texas. (corroborated by 10 sources) - The gas plant is intended to meet the rising electricity demand of AI data centers. (corroborated by 8 sources) - Negotiations include the construction of up to eight large-scale nuclear reactors in the United States. (corroborated by 4 sources) - South Korea and the U.S. are negotiating a $200 billion strategic investment package. (corroborated by 3 sources) - The first major project is expected to be a gas-fired combined cycle power plant in Encinal, Texas. (corroborated by 3 sources) - The cost for the Encinal power plant project was negotiated to approximately $22 billion. (corroborated by 3 sources) ## Timeline ### 2026-09-10: South Korea to invest $100 billion in U.S. energy projects South Korea plans to invest over $100 billion in U.S. energy projects, including Texas nuclear plants and natural gas, to support AI infrastructure and fulfill trade agreements. 2 sources. https://clstr.news/cluster/south-korea-to-invest-100-billion-in-us-energy-projects ### 2026-09-07: South Korea and U.S. agree on $22.3B Texas gas plant investment South Korea and the U.S. have reportedly agreed to a $22.3 billion gas plant project in Texas to power AI data centers, part of a larger $350 billion strategic investment framework. 11 sources. https://clstr.news/cluster/south-korea-and-us-agree-to-223-billion-texas-gas-plant ### 2026-09-03: Four U.S. companies to invest $2 billion in South Korea Four U.S. companies in semiconductor, materials, and clean energy sectors will invest $2 billion in South Korea to strengthen supply chain cooperation. 6 sources. https://clstr.news/cluster/four-us-companies-to-invest-2-billion-in-south-korea --- Cite as: South Korea-U.S. economic and energy investment cooperation. CLSTR, https://clstr.news/situations/south-korea-us-economic-and-energy-investment-cooperation