Mongolia Copper Mine at Oyu Tolgoi Tests Water Supply and ...
1990: Mongolia transitions from a single party socialist system, with ties to the Soviet Union, to a multi-party democracy.. 1997: Mongolia's authorities enact the Mineral Law and opened most of the country to mineral development.More than 6,000 licenses were approved, including those for the big copper and coal mines in Omnogovi. 2003: BHP, an Australian company, drills water monitoring ...