SÃO PAULO Workers at Corporación Nacional del Cobre de Chiles (Codelcos) Salvador copper mine in Chile have gone on strike following failed negotiations over payments.
"It is not yet possible to quantify the impact of this strike, as it depends on the scope and the length of the stoppage," Codelco executive president Iván Arriagada said in a statement.
Workers have demanded equal benefits to miners hired before and after September 2009, according to Chilean newspaper La Tercera.
Salvador is one of Codelcos smallest projects, producing 22,200 tonnes of copper in the first half of 2013, down 16.5 percent from the same period last year, according to Chilean Copper Commission Cochilco.
"The legal strike started by the workers of Codelcos Salvador division will increase the production problems faced by this mining operation, which in the first half of the year has generated over $50 million in losses for Codelco," the state-owned company said.
A version of this article was first published in AMM sister publication Metal Bulletin.