The Large Latin American Millimeter Array (LLAMA) is a single-dish 12 m Nasmyth optics antenna which is under construction in the Puna de Atacama desert in the Province of Salta, Argentina, next to the Qubic experiment. The primary mirror accuracy will allow observation from 40 GHz up to 900 GHz. After installation it will be able to join other similar instruments to perform Very Large Base Line Interferometry or to work in standalone mode. Financial support is provided by the Argentinian and Brazilian governments. The total cost of construction, around US$20 million, and operation as well as the telescope time use will be shared equally by the two countries. Construction planning started in July 2014 after the formal signature of an agreement between the main institutions involved. Overview LLAMA is a joint project between Argentinian and Brazilian Astronomers to build and operate a radio telescope at submillimeter wavelengths, that can work in stand alone mode or join a Very Long Baseline Interferometry (VLBI) network. The main scientific institutions involved in the project are the Argentine Institute of Radio Astronomy (IAR), and the Núcleo para o Apoio da Rádio Astronomia (NARA), from the Universidade de São Paulo (Brazil). The telescope is located at a very high altitude (4,825 m) where the atmospheric absorption (mostly due to water vapor) allows the observation at the very short wavelengths of less than 1 mm. It is a multipurpose instrument that will have cryogenic receivers with very high sensitivity in order to observe very faint sources, and filters to observe the Sun. History The history of the instrument can be traced back to 2007, during the XII Latin American Regional IAU Meeting (LARIM) held in Isla de Margarita (Venezuela). Argentinian radio astronomers discussed the idea with colleagues from South America. The search for the best place for a submillimeter (wavelength less than 1 mm) telescope had started in Argentina in 2003, with a 210 GHz tipper which was installed in different places to investigate the atmospheric opacity. During the XXVII General Assembly in Rio de Janeiro, the project gained a name in a document authored by the leading scientists of the project. In the same document, scientists also proposed the initial science, budget, strategies for construction, site, and other matters. The formal presentation before the Argentinian Science Ministry (MinCyT) was in 2010, while a meeting held at the offices of FAPESP in August 2011 was