Mexico has no nuclear weapons, but it possesses the technical capability to manufacture nuclear weapons.[1] However, it has renounced them and has pledged to only use its nuclear technology for peaceful purposes following the Treaty of Tlatelolco in 1967.[2] In the 1970s, Mexico's National Institute for Nuclear Research (Instituto Nacional de Investigaciones Nucleares, or ININ) successfully achieved the creation of highly enriched uranium, which is used in nuclear power plants and in the construction of nuclear weapons. However, the country agreed in 2012 to downgrade the high enriched uranium used on its nuclear power plants to low enriched uranium. This process was carried out with the assistance of the International Atomic Energy Agency.[3][4]