Miners walk near the Cabeza de Negro gold-and-copper mine where nine miners are trapped in Ica April 9, 2012. Nine workers trapped inside a wildcat mine in southern Peru received oxygen and liquids through a giant hose on Saturday while a rescue team toiled to get them out, officials said. The men have been stuck about 656 feet (200 meters) below ground since the Cabeza de Negro gold-and-copper mine partially collapsed on Thursday. Small illegal mines are common in Peru, generating as much as $2 billion a year in income, according to private estimates. Peru's mining sector accounts for 60 percent of total exports. REUTERS/Mariana Bazo (PERU - Tags: DISASTER BUSINESS)