Caterpillar | Caterpillar Successfully Demonstrates First Battery Electric Large Mining Truck and Invests in Sustainable Proving Ground
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Harvard professor tells Joe Rogan all tech devices with lithium batteries come from slave mines | Daily Mail Online
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Like slave and master': DRC miners toil for 30p an hour to fuel electric cars | Africa | The Guardian
Caterpillar | Caterpillar Successfully Demonstrates First Battery Electric Large Mining Truck and Invests in Sustainable Proving Ground
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