(GOLD) 1 metric tonne = 32,150.7466 troy ounces. So, how much is 2500 tonnes of annual world gold production worth? Well, times 32,151 ounces, its 80 million ounces. www.lateralthinking.biz/wp-content/uploads/2009/08/saupload_08_06_24b_gld_world_reserves.png