A letter report issued by the Government Accountability Office with an abstract that begins "Stakeholder-developed initiatives may facilitate companies' compliance with the Securities and Exchange Commission's (SEC) final conflict minerals rule, but other factors may affect the rule's impact on reducing benefits to armed groups in the Democratic Republic of the Congo (DRC) and neighboring countries. Agency and industry officials as well as representatives from international organizations and nongovernmental organizations (NGO) stated that adoption of the rule as well as stakeholder-developed initiatives--which include the development of guidance documents, audit protocols, and in-region sourcing of conflict minerals--can support companies' efforts to conduct due diligence and to identify and responsibly source conflict minerals. For example, officials GAO interviewed explained that the Conflict-Free Smelter Program enables suppliers to source conflict minerals from smelters (companies that refine the ore of the conflict minerals into metals) that have been certified by an independent third-party auditor as obtaining their minerals from sources that did not benefit armed groups. However, officials GAO interviewed cited constraining factors such as lack of security, lack of infrastructure, and lack of capacity in the DRC that could affect the ability to expand on efforts to achieve conflict-free sourcing of minerals from …