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加拿大多伦多ＩＢＩ公司已获得乌干达Ｂｕｓｕｍｂｕ地区磷矿的投资权，该磷矿床已探明储量为８５万ｔ，比世界上其他的可工业开采的磷矿床的规模小，但ＩＢＩ公司称它为该矿床提供的资金将获得７０％的利息。该矿床约有３００万ｔ矿石Ｐ２Ｏ５平均品位为１１％，其余的平均品?
IBI, Toronto, Canada, has obtained the right to invest in phosphate rock in the Busumbu area of Uganda, which has a proven reserve of 850,000 tonnes, which is smaller than the rest of the world’s industrially exploitable phosphate deposits but IBI calls it The deposit provided by the deposit will receive 70% interest. About 3 million tons of ore P2O5 average grade of the deposit is 11%, the remaining average product?