APEX (Atacama Pathfinder Experiment) is a collaborative project between Max Planck Institute for Radio Astronomy (MPIfR), Onsala Space Observatory (OSO) and the European Southern Observatory (ESO) to build and operate an antenna prototype for ALMA, located on the plain of Chajnantor near San Pedro de Atacama.

MT Mecatronica SPA works in the maintenance and management of support for the APEX telescope, which enables the study of the cold dust and gas in our Milky Way and distant galaxies.