The open pits of the Mutanda copper mine are seen in this aerial view in Katanga province, Democratic Republic of Congo, on Wednesday, Aug. 1, 2012. Israeli billionaire Dan Gertler, whose grandfather co-founded Israel's diamond exchange in 1947, arrived in Congo in 1997 seeking rough diamonds. Since those early days, Gertler has invested in iron ore, gold, cobalt and copper as well as agriculture, oil and banking. Photographer: Simon Dawson/Bloomberg