With the rapid rise in the prices of certain minerals and metals, commodity-rich nations in Africa are looking to capture a greater share of this bonanza. To take advantage of the growing demand for key metals such as cobalt and vanadium, developing countries can either open up mining operations to foreign direct investment or try to collect more revenue from their raw materials. The Democratic Republic of the Congo is taking the second approach, which is adding to the problems facing Glencore PLC, one of the country's larger mining operators....
