San José Mine San José Mine The San José Mine () is a small copper-gold mine located near Copiapó, Atacama Region, Chile. The mine became known internationally for its collapse in 2010, which trapped 33 miners underground. Its workings are reached by a long sloping roadway with many spiral turns (a diagram shows ten turns), not by a vertical mineshaft. The San José Mine is located 45 kilometers northwest of Copiapó. The mine began operations in 1889. In 1957, Jorge Kemeny Letay, a Hungarian immigrant founded the San Esteban Mining Company (). According to Terra, the mine's annual sales surpassed 20 million dollars.
Grupo México to the possibility of huge gas concentrations, there are certain theories that indicate the mine has an important lack of safety rules, very similar to the problem presented in the Sago Mine disaster in West Virginia with the accident that caused death of 12 miners on January 2, 2006. Union critics of the company openly refer to the incident as a "homicide." After the successful rescue of 33 trapped miners in October 2010 in Copiapó, Chile, the case gained popularity again, and many people including bishop Raúl Vera demanded that the case be reopened. Grupo México has not responded. According