The De Beers Group of Companies has a leading role in the diamond exploration, diamond mining, diamond retail, diamond trading and industrial diamond manufacturing sectors. The company is currently active in every category of diamond mining: open-pit, underground, large-scale alluvial, coastal and deep sea. The company operates in 28 countries and mining takes place in Botswana, Namibia, South Africa and Canada. De Beers currently sells approximately 35% of the world’s rough diamond production through its distribution subsidiary, DTC.