Meet Dorsen, 8, who mines cobalt to make your smartphone work

Investigation has found wretched working conditions in unregulated artisanal mines where cobalt is extracted for smartphones: abundant child labor; as young as four years old working; 12-hour daily shifts; workers earning as little as 8p a day; desperately dangerous conditions; exposure to cobalt and dust fumes; mine tunnels are dug by hand by miners who have no protective equipment; recent death reported due to mine collapse.