Many companies don't make an effort to audit their supply chain to ensure their minerals are sourced ethically. For some reference as to which companies do the

Many companies don't make an effort to audit their supply chain to ensure their minerals are sourced ethically. For some reference as to which companies do the best, check: http://www.raisehopeforcongo.org/content/conflict-minerals-company-rankings http://www.raisehopeforcongo.org/content/conflict-minerals-c...