Kudremukh Iron Ore Company Ltd (KIOCL), a Government of India enterprise under the Union ministry of steel, has repoted a turnover of Rs 620 crore in the financila year 1999-2000 compred with a turnover of Rs 594 crore in the previous fiscal. The company has registered an increase of 14 per cent in iron ore concentrate production from 5.042 million tonne to 5.75 million tonne.