Negotiations with Indigenous Groups as well as mounting environmental awareness by the general public have slowed or blocked more than $20 billion US in power stations, gold and copper mines, and transmission lines, according to company statements and a study by Matias Abogabir, head of indigenous affairs during former President Sebastián Piñera’s administration.(Abogabir now advises companies on indigenous relations.) After a decade-long copper boom that made Chile the richest country…