First, Let's take a look of what is a "Conflict Minerals""
The term “conflict minerals” is defined as columbite-tantalite, also known as coltan (from which tantalum is derived); cassiterite (tin); gold; wolframite (tungsten); or their derivatives; or any other mineral or its derivatives determined by the Secretary of State to be financing conflict in the Democratic Republic of the Congo or an adjoining country.
On June 7, under the umbrella of the U.S.-China Strategic and Economic Dialogue, the U.S. and China recognized that responsible mineral supply chain practices promote stability and prosperity in the African Great Lakes region. The two sides welcomed each other’s efforts in this area.
Both sides expect to encourage exchanges and the sharing of best practices between commercial enterprises in the two countries. The U.S. Department of State and relevant U.S. agencies, and China’s Ministry of Commerce and the General Administration of Quality Supervision, Inspection and Quarantine intend to collaborate on implementation of due diligence guidance, relevant standards, and initiatives, consistent with UNSCR 1952 (2010).
The full Outcome Document can be found at http://go.usa.gov/chqrj (see #36 for conflict minerals language).