This report, jointly researched by Amnesty International and African Resources Watch (Afrewatch), examines the conditions under which artisanal miners extract a significant proportion of the world’s cobalt supply, and then traces how this mineral is traded. It is the first comprehensive account of how cobalt from the DRC’s artisanal mines enters the supply chain of multinational companies, including some of the world’s wealthiest electronics companies. The report assesses the extent to which companies have put in place human rights due diligence measures to know where the cobalt in their products comes from and the conditions under which it is extracted and traded. [includes responses by Apple, BYD, Dell, HP, Huawei, LG, Lenovo (which owns Motorola Mobility), Microsoft, Samsung, Sony, Vodafone, Daimler, Volkswagen]