What is conflict coltan? What groups benefited from the trade in conflict coltan?What groups were hurt by it?

Questions:1. What is conflict coltan? What groups benefited from the trade in conflict coltan?What groups were hurt by it?2. What three sectors were concerned with the problem of conflict coltan? Whatwere the interests of each, and in what ways did their interests converge?3. What steps could be taken by governments, NGOs, and companies to strengthenthe process to exclude conflict minerals from the global supply chain?4. Could conflict minerals be excluded from the global supply chain without hurtingthe noncombatant citizens of the DRC?