The operation is comprised of an underground mine and a polymetallic mill with a capacity of 800kt ore per year. Commercial production started in April 2009. Campo Morado is a polymetallic VMS deposit comprised of five defined zones: G-9, Naranjo, Reforma, El Rey and El Largo. Production from G-9 commenced in 2008. The other deposits are at an early stage of development, but could potentially provide mill feed in future years. In January 2015, the operations were suspended due to the on-going issues associated with security in the region including security of mine workers that were being systematically intimidated by non-affiliated union activists who were blocking the mine entrance.