ASOCIACIÓN ARTE CONCRETO-INVENCIÓN (CONCRETE-INVENTION ART ASSOCIATION)
Founded by Tomás Maldonado in 1944, the Asociación Arte Concreto-Invención (Concrete-Invention Art Association) was one of two artistic groups formed in Buenos Aires devoted to pure geometric abstraction (the other being Arte Madí)
Like their fellow constructivists the Asociación Arte Concreto-Invención embraced the purist aesthetics of Piet Mondrian and Theo van Doesburg, and created paintings on irregular shaped canvases. They were less experimental than the Arte Madí artists due to the tight creative constraints placed upon them by their Marxist leader Maldonado who had utopian ambitions for art in a new revolutionary society.
Artists associated with the group include Tomás Maldonado, Manuel Espinosa, Lidy Prati, Enio Iommi, Alfredo Hlito and Raúl Lozza.
Source: https://www.tate.org.uk/art/art-terms/a/asociacion-arte-concreto-invencion-concrete-invention-art-association