In this July 6, 2012 photo, excavation continues at the Erdenes Tavan Tolgoi coal mining facility in southern Mongolia. Fully 90 percent of Mongolia's exports - coal, copper, cashmere and livestock - go to China, which in turn sends machinery, appliances and other consumer goods that account for a third of Mongolian imports. The rising trade with China now amounts to three-fourths of Mongolia's economy, one of the highest ratios in the world, according to an Associated Press analysis of IMF trade data. (AP Photo/Andy Wong)