http://www.mongoliaonline.com/Mining/chinalco-confirms-rio-guinea-mongolia-jv-talks/ BEIJING, March 17 (Reuters) - China's top state-owned nonferrous metals company Chinalco has confirmed that it is in talks with Rio Tinto about potential joint ventures in Mongolia and Guinea, a Chinese newspaper reported on Wednesday. Wed, 17 Mar 2010 03:13:26 EDT en