A worker checks granules of palladium, transported from Norilsk Nickel plant, for production of ingots of 99.98 percent pureness at the Krastsvetmet nonferrous metals plant in Russia's Siberian city of Krasnoyarsk April 12, 2012. Krastsvetmet is one of the world's largest players in the precious metals industry. REUTERS/Ilya Naymushin (RUSSIA - Tags: BUSINESS COMMODITIES)