To match Survey COMMODITIES-HOUSES
A combination photo shows, (clockwise, from L-R) a worker counting ingots of tin at a PT Timah smelter in Mentok, Indonesia February 22, 2007; locals of the Qiang ethnic minority picking tea leaves at a tea plantation in Yaan, Sichuan Province April 11, 2010; a tipper truck parked above the main pit at a Rio Tinto iron ore mine at Tom Price, Australia, May 28, 2008; Bosnian miners working deep inside a coalmine near Breza December 5, 2008; a worker filling up a taxi's fuel tank at a gas station in Taipei April 23, 2008; a wheat crop ready for harvest on the Canadian prairies near Taber, Alberta, September 7, 2011; a worker displaying nickel ore in a ferronickel smelter owned by state miner Aneka Tambang Tbk, Sulawesi province March 30, 2011; a worker climbing on a pile of rice stock inside a warehouse of the government National Food Authority (NFA) in Bicutan, Manila September 28, 2010; one kilogram gold bars in a picture illustration taken at the Korea Gold Exchange in Seoul August 9, 2011. For the small club of companies who trade the food, fuels and metals that keep the world running, the last decade has been sensational. Driven by the rise of Brazil, China, India and other fast-growing economies, the global commodities boom has turbocharged profits at the world's biggest trading houses. To match Survey COMMODITIES-HOUSES REUTERS/Staff (AGRICULTURE BUSINESS COMMODITIES ENERGY FOOD)