Notes to Consolidated Financial Statements  Years ended December 31, 2012 and 2011 18. Income and Resource Taxes (continued)  b) Reconciliation of income and resource taxes calculated at the statutory rates to the actual tax provision is as follows: (Cdn$ in millions) 2012 2011 Tax expense at the Canadian statutory income tax rate of 25.15% (2011 – 26.68%)  $ 374 $ 1,111 Tax effect of: Resource taxes, net of resource and depletion allowances  172 253 Non-temporary differences including one-half of capital gains and losses 47 13 Tax losses not recognized (recognition of previously unrecognized losses)  6 (13) Effect of newly enacted change in tax rates  3 – Benefit of change in expected timing of temporary difference reversals  – (42) Withholding taxes 24 56 Difference in tax rates in foreign jurisdictions  57 38 Tax settlements and revisions to prior year estimates  (59) 3 Other (9) (21) $ 615 $ 1,398 The Canadian statutory tax rate decreased to 25.15% due to legislated changes. c) The analysis of deferred tax assets and deferred tax liabilities is as follows: (Cdn$ in millions) 2012 2011 Deferred tax assets Expected to be reversed after more than a year  $ 124 $ 316 Expected to be reversed within a year  105 (136) $ 229 $ 180 Deferred tax liabilities Expected to be reversed after more than a year  5,465 5,114 Expected to be reversed within a year  (18) 228 5,447 5,342 Net deferred tax liabilities  $ 5,218 $ 5,162 Teck 2012 Annual Report 106