Tungsten's Tainted Trail

By Mike Smith - 2013-08-08T15:33:40Z

Photograph by Carlos Villalon/Bloomberg Markets

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International Demand 

Raul Linares, holding tungsten ore from the FARC mine, worked for Cali-based Geo Copper SAS, which has sold the metal internationally. Linares says part of his job was buying tungsten ore from the FARC mine. Geo Copper denies its tungsten comes from the illegal FARC mine.