In response to CNN investigation, car manufacturer Daimler promises to audit cobalt supply 'to the mine'

Daimler has pledged to investigate its supply chain to ensure child labour is not being used to power its electric vehicles.

New CNN investigation finds children mining cobalt in Congo

The CNN team witnessed children working at the Musonoie river mine – washing and carrying cobalt ore in sacks – before being chased away by officials. CNN cameras even captured one mining ministry official slapping a child in the face once he realised he was being filmed.

Trump halts study into Appalachian mining technique's likely health hazards

Method is believed to deposit waste containing toxic minerals in ground waters.