Compañía Minera San Esteban Primera Piñera said on October 12 that "the mine will remain closed until security measures that guard the life and dignity of the workers are established." Compañía Minera San Esteban Primera Compañía Minera San Esteban Primera (San Esteban Primera Mining Company) is a Chilean mining company, dedicated to the production of copper and gold concentrates. San Esteban's headquarters are located in Providencia, Santiago Metropolitan Region. San Esteban also owns the San José Mine in Copiapó, Chile, where 33 miners were trapped underground for 69 days after a mining accident on August 5, 2010. Chile has a long tradition in mining, which
2010 Copiapó mining accident a Pulitzer Prize-winning writer at the "Los Angeles Times". Tobar had exclusive access to the miners and in October 2014 published an official account titled "Deep Down Dark: The Untold Stories of 33 Men Buried in a Chilean Mine, and the Miracle That Set Them Free". Tobar described the previous books published on the topic as "quick and dirty" with "almost no cooperation from the miners." These books include "Trapped: How the World Rescued 33 Miners from 2,000 Feet Below the Chilean Desert" (August 2011) by Marc Aronson; "Buried Alive!: How 33 Miners Survived 69 Days Deep Under the Chilean