What caused the impairment loss relating to Copper & Diamonds, at Oyu Tolgoi in Mongolia, how was the amount of the loss estimated, and what effect did this have on the financial statements?

(1) Using the group balance sheet (p37), calculate Rio Tinto’s: (a) current ratio, and (b) financial leverage. In your view, and using both Rio Tinto’s income statement (p32) and cash flow statement (p35) in addition to its balance sheet, does Rio Tinto have significant amounts of debt, or any potential problems in being able to […]