It has long been a challenge in El Salvador to develop new growth sectors for a more diversified economy. In the past, the country produced gold and silver, but recent attempts to reopen the mining sector, which were expected to add hundreds of millions of dollars to the local economy, collapsed after President Saca shut down the operations of Pacific Rim Mining Corporation.  Nevertheless, according to the Central American Institute for Fiscal Studies (Instituto Centroamericano for Estudios Fiscales), the contribution of metallic mining was a minuscule 0.3% of the country's GDP between 2010 and 2015. Saca's decision although not lacking political motives, had strong support from local residents and grassroots movements in the country. President Funes later rejected a company's application for a further permit based on the risk of cyanide contamination on one of the country's main rivers.