The United States announces an implementation plan to support trilateral cooperation with South Korea and Japan aimed at deploying small modular reactors (SMRs) in third countries. The U.S. State Department makes the announcement on the margins of the United Nations General Assembly in New York, describing the plan as part of an “ambitious agenda” to pursue SMR fleet deployment in response to growing global energy demand.

The announcement follows a memorandum of cooperation (MOC) on civil nuclear energy that the three countries sign in Ankara in July, during talks among South Korean Foreign Minister Cho Hyun, U.S. Secretary of State Marco Rubio, and Japanese Foreign Minister Toshimitsu Motegi. The State Department says details of the implementation plan are not specified in its public media note. Separate reporting highlights that the initiative also references a related industry framework.

Across outlets, both accounts agree the plan ties to an industry cooperation arrangement involving companies from the three countries plus Poland. This framework is described as centered on advancing deployment of the BWRX-300 SMR, with named firms including GE Vernova, Hitachi, Samsung C&T, and SGE. The State Department frames the effort as supporting nuclear safety, security, and nonproliferation, and as encouraging future reactor investment, though reported figures vary by outlet coverage.