Chile’s vaunted copper industry is nearing a tipping point as coronavirus explodes across the South American nation, mine workers and analysts say, laying bare the hidden costs of policies that have until now salvaged its output of the red metal. Since early April leading miners, including state-owned Codelco, BHP, Anglo American, Glencore and Antofagasta have doubled down with skeleton crews in the world’s largest copper producer, churning out more amid the pandemic than the year before. But cracks are beginning to show, union leaders told Reuters. Patricio Elgueta, president of Chile’s Federation of Copper Workers (FTC), an umbrella group for Codelco’s unions, said miners are exhausted and scared of falling ill but keep working to make ends meet. Elgueta said unions were weighing a proposal from a regional roundtable of healthworkers, politicians and social groups to draw down production to a “minimum” at all of the mines around the hard-hit city of Calama in order to sanitize them. The Antofagasta region, where Calama is located, accounts for more than half of Chile’s mine production, according to state copper agency statistics. Meanwhile, Elgueta said emphasis at the major mines had necessarily shifted to processing ore as companies have scaled back staffing by around 40%. Contract work has already largely been slashed. “You focus on production and neglect maintenance… it’s not sustainable,” Elgueta said in a phone interview. “First you exhaust the workers, then you cause damage to the equipment, then come delays.” Juan Carlos Guajardo, head of Santiago-based consultancy Plusmining, told Reuters the industry was coming “dangerously close to the edge.”