The principal operating official was David C. Naccarati, president. The mine was normally operated two, 12hour shifts a day, seven days a week. Total employment was 2,073 persons. Copper ore was drilled, blasted, loaded on trucks, and transported to various locations throughout the mine in preparation for crushing and milling.
Jun 16, 2020· In 2019, the Chuquicamata mine – one of the largest copper mines in the world – was converted from an openpit mine to an underground operation. In 2015, TAKRAF was contracted to supply the principal ore transportation system moving crushed copper ore .