# US-Argentina nuclear cooperation negotiations > Live situation record from CLSTR: https://clstr.news/situations/us-argentina-nuclear-cooperation-negotiations > Updated: 2026-08-31T05:33:00.000Z. Sources: 2. Developments: 2. Argentina and the United States are working to finalize a new nuclear energy cooperation agreement, referred to as ‘Agreement 123’, before the end of 2026. This pact is intended to replace a 1997 convention that expires in 2027. The agreement establishes a legal framework for the transfer of nuclear technology, equipment, and materials for civilian use. As negotiations progress, the updated framework aims to encourage private American investment and integrate Argentine industry into the North American nuclear value chain, including the potential introduction of small modular reactors. Concurrently, the United States is advancing its own domestic nuclear infrastructure through the Department of Energy’s Nuclear Lifecycle Innovation Campus (NLIC) initiative. The DOE has narrowed its selection for this project to five candidates, with Tennessee being a leading contender to host a complex focused on nuclear fuel manufacturing, recycling, and waste management. ## Timeline ### 2026-08-31: United States advances nuclear expansion and cooperation plans The U.S. is selecting sites for a new Nuclear Lifecycle Innovation Campus, while Argentina and the U.S. negotiate a new nuclear cooperation agreement to modernize their technological partnership. 2 sources. https://clstr.news/cluster/united-states-advances-nuclear-expansion-and-cooperation-plans ### 2026-08-10: Argentina pursues US nuclear pact as Chile approves vandalism registry Argentina seeks a new nuclear cooperation agreement with the US by year-end, while Chile's Security Commission approved a bill to create a national registry of vandalism and incivilities. 2 sources. https://clstr.news/cluster/argentina-pursues-us-nuclear-pact-as-chile-approves-vandalism-registry --- Cite as: US-Argentina nuclear cooperation negotiations. CLSTR, https://clstr.news/situations/us-argentina-nuclear-cooperation-negotiations