In December 2013, IndustriAll denounced that Glencore Xstrata was using unfair dismissals, coercion and interference in union affairs to prevent technicians at the Antapaccay copper company in the Cuzco region of Peru from unionising.
On 24 March 2014, workers at the Antapaccay company, a Glencore Xstrata subsidiary, began a two-day stoppage in protest of the failure to pay legally-mandated profit sharing; the violation of the collective bargaining agreement; the use of fixed-term contracts, and the illegal dismissal of employees for forming a union of technicians and administrative staff.