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6. Income tax expense (continued): 

The income tax effect of the temporary differences that give rise to the Corporation’s deferred income tax assets and liabilities are as follows: 

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As at December 31, 2011, the Corporation has $2,989,609 in non-capital losses available to reduce income tax in future years that expire in 2025 or later. 

As at December 31, 2011, the Corporation has unused federal investment tax credits which expire from time to time as follows: 

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The Corporation has research and development expenditures not deducted at the end of the year, to be deducted over an indefinite period for an amount of $58,131,473. 

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