http://www.mongoliaonline.com/Mining/ivanhoe-mines-boosts-oyu-tolgoi-production-estimates/ IVANHOE Mines has unveiled an updated development plan for the big Oyu Tolgoi project in Mongolia that could boost copper production by 50 per cent and gold output by 126 per cent. Oyu Tolgoi, the world's largest undeveloped copper-gold project, recently got the go-ahead from the Mongolian government when a 50-year investment agreement was finalised. The government... Tue, 11 May 2010 16:18:27 EDT en