Cobalt Mined with Child Labour used by Apple, Samsung, Sony & others, 

In the process, Amnesty spoke to 87 current and former cobalt miners, including 17 children. Children told Amnesty International they worked for up to 12 hours a day in the mines, carrying heavy loads to earn between $1 and $2 US a day. In 2014, approximately 40,000 children worked in mines across southern DRC, many of them mining cobalt, according to UNICEF.In a report, the group documents how traders buy cobalt from areas where child labour is rife and sell it to a company called Congo Dongfang Mining (CDM), a wholly-owned subsidiary of Chinese mineral giant Zhejiang Huayou Cobalt Ltd (Huayou Cobalt).According to filings, Huayou Cobalt sold more than $235 million worth of cobalt in 2013.

Source: Cobalt mined with child labour used by Apple, Samsung, Sony & others, Amnesty International says – Business – CBC News