The children forced to work in order to make smartphones

Last updated at 07:15
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Were kids forced to work to make your phone?

To make smartphone batteries you need a metal called cobalt and one of the few places you can find it is underground in the Democratic Republic of Congo.

Many children there are forced to work to make money for their families because the country is very poor.

But there are not enough checks by the government to stop this happening.

Mining can be very dangerous and the children often work very long hours in hot, cramped conditions.

Women workers wait at a colbalt mineGetty Images
Young women workers at a colbalt mine in the Democratic Republic of Congo

A campaign group called Amnesty International have said today that phone companies are not doing enough to make sure that the cobalt in their phones hasn't come from children working in the mines.

They say this includes very big smartphone companies like Apple, Samsung, and Sony.

A man searches for cobalt in an old mineGetty Images
A man searches for leftover cobalt in a mine

The companies say they have a zero tolerance policy towards children working.

Paul, a 14-year-old who lives in Congo, started mining when he was 12. He said: "I would spend 24 hours down in the tunnels. I arrived in the morning and would leave the following morning."