President Trump and Japan's Prime Minister Sanae Takaichi unveiled a $40 billion partnership at the White House on March 20, 2026 to build BWRX-300 SMRs in Tennessee and Alabama — the largest bilateral SMR commitment in history. GE Vernova Hitachi is the reactor technology provider. The deal is part of the broader $550 billion US-Japan trade agreement with Japan simultaneously committing up to $33 billion in natural gas power plants in Pennsylvania and Texas. GE Vernova stock rose significantly on the announcement. The programme could deploy 3 GW of BWRX-300 capacity.