In mineral-rich Rubaya, source of most of the world’s coltan, miners suffer poverty and dangerous working conditions.

At least 200 were killed when mines collapsed at a coltan mining site in eastern Congo this week, rebel authorities say. The Rubaya mines, where the disaster occurred, supply a key metal for ...

The nation is a major supplier of coltan - dug out by hand - which contains a key component for smartphones, computers and ...

More than 200 people have been killed in a collapse at the Rubaya coltan mine in eastern Democratic Republic of Congo (DRC), ...

More than 200 people have been reported dead after a landslide hit coltan mines in the Democratic Republic of Congo.

As officials meet in Washington to discuss critical minerals, many in DRC fear their country will gain little.

A landslide last week collapsed tunnels at a major coltan mining site in eastern Congo, leaving at least 200 people dead.

Rubaya mine produces about 15% of the world’s coltan, which is processed into tantalum, used in mobile phones ...

Several mines collapsed in region that produces 15% of world’s supply of rare metal that is key for production of smartphones, computers and aircraft engines ...

Egypt on Sunday expressed condolences to the Democratic Republic of Congo (DRC) after the collapse of a coltan mine in the eastern town of Rubaya killed hundreds of people.

, REUTERS -Rwandan company Boss Mining Solution bought minerals smuggled from rebel-held areas of neighboring Congo, helping fund an insurgency in that vast African country, according to a ...