Grupo Argos to sell stake in Colombian EPSA February 15, 2018 | Latin America Deal Watch Colombian conglomerate Grupo Argos is selling its 100 per cent stake in Colombian electricity company Empresa de Energia del Pacifico S.A. E.S.P. (EPSA) to its unit Celsia S.A. E.S.P. This content is available to only paying subscribers. Username or E-mail Password Remember Me Forgot Password