Acciona Ossa Pizzarotti workers were allegedly deliberately isolated by the other unions on the site, which prevented their members from joining the picket with threats and intimidation. The unions that prevented them from joining are allegedly " corporatist unions which have served as industrial policemen for the capitalist class". Acciona Ossa Pizzarotti workers also initiated a wildcat strike in August 2021, the third in so many months, due to "terrible working conditions at the Chuquicamata underground site in the region of Antofagasta".