In its most recent report, published in 2014 and titled ‘The Mineral Industry of Congo (Kinshasa)’, the US Geological Survey (USGS) notes that the country “played a globally significant role in the world’s production of cobalt, copper, diamonds, tantalum and tin”. In 2014, the country’s share of the world’s mined cobalt production amounted to 51%; tantalum, 17%; diamonds, 13%; copper, ...