[A]ny household electronic…could contain minerals mined in the Democratic Republic of the Congo…Tin, tantalum, tungsten and gold mined in the eastern part of the DRC are said to finance the armed rebel groups that contribute to the ongoing violence in the country…The DRC supplies dozens of electronics companies around the word with the minerals needed to manufacture products like iPhones and video games. The DRC is the fifth largest supplier of tin ore, and according to a U.S. Geological Survey, about 10 percent of tungsten--the mineral used to make cell phones vibrate--is imported to the United States…[refers to Advanced Micro Devices]