 Because Doe Run Company is a major employer in the city, union leaders and the mayor were often persuaded to side with the industry and circumvent government attempts to address the pollution, but the political tide finally started to shift in the mid-2000s
In 2006, the Peruvian government granted Doe Run a three-year extension to meet emission level standards.In February 2007 Doe Run's Peruvian assets were spun out as an independent subsidiary of Renco Group, Doe Run Peru.In a 2007 press release, Doe Run Peru announced that it would appeal a fine levied on it by Peruvian regulators for surpassing emissions standards in La Oroya.