Tungsten From Colombia Taints Phone-to-Car Sales

Aug. 8 (Bloomberg) -- Illegally mined minerals that fund a decades-old war in Colombia are making their way into supply lines for cars, smart phones and computers. Amazon Indians explore the rain forest for valuable rocks that contain tantalum and tungsten, both of which are used to manufacture smartphones and other mobile devices. While the Indians do the digging, they rely on another more powerful group to get the ore to market, the Revolutionary Armed Forces of Colombia (FARC). Bloomberg's Michael Smith reports. This story is featured in the September issue of Bloomberg Markets magazine. (Source: Bloomberg)

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