** FILE ** Men walk around the area where uranium was once mined, at the Shinkolobwe Cobalt mine, 35km from the town of Likasi, in southeastern Congo in this Saturday, April 10, 2004 file photo. Britain's Brinkley Mining PLC signed a contract for uranium exploitation in Congo on Monday, July 9, 2007, promising a US$3 million start-up investment into a partnership with the government. (AP Photo/Schalk van Zuydam, File)