A llama stands next to a cactus growing on Incahuasi Island above the Uyuni salt lake, which holds the world's largest reserve of lithium, located at 3,656 meters (11,995 ft) above sea level in southwestern Bolivia, November 7, 2012. Argentina, Chile and Bolivia hold the planet's largest reserves of lithium, the world's lightest metal and a key component in batteries used to power a range of technologies from cell phones to laptops to electric cars. Industrial production from countries in this so-called 'lithium triangle' is already high. Chile is the world's leading source of the metal, turning out around 40 percent of global supply, and Argentina is also a significant producer. Output from the Andes may soon rise after Bolivia - the country that holds an estimated 50 percent of the world's lithium reserves - opened its first lithium pilot plant in January. Picture taken November 7, 2012. REUTERS/David Mercado (BOLIVIA - Tags: BUSINESS COMMODITIES ENVIRONMENT ENERGY ANIMALS)

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