The Ley Reservada del Cobre stipulates that 10% of Codelco's export sales are to be transferred to the armed forces. Each year Codelco deposits the earmarked resources in dollars in three secret accounts (army, air force and navy) at the Central Bank of Chile. Law 20.977 from December 2016 indicates that the text of Law No. 13,196, including its amendments, will no longer be secret or reserved. https://www.defensa.cl/temas-de-contenido/ley-reservada-del-cobre/