Free Republic

RUBAYA, Democratic Republic of Congo - Under the watchful eye of M23 rebels in the hills around the Congolese town of Rubaya, a line of men in rubber boots ferry sacks full of crushed rocks up winding paths cut into the slopes.The laborers are hauling coltan ore, a mineral that powers the modern world. The ore will be loaded onto motorbikes and eventually shipped thousands of kilometers away to Asia. There it’s processed into tantalum, a heat-resistant metal that fetches more than $300 a kilogram and is in high demand by makers of mobile phones, computers, aerospace components and gas...

The accident in the makeshift mine occurred on Friday about 3pm local time (13:00 GMT) following heavy rains in the town of Kamituga in South Kivu province. The mine was not located on the Kamituga gold concession owned by the Canadian miner Banro Corporation, the company's chief executive said. Thousands of informal miners operate in and around mines in DRC, which produces more than half of the world's cobalt, a key component in electric car batteries. Mining accidents are common, with dozens of deaths every year in mines where often ill-equipped diggers burrow deep underground in search for ore. Last...