Page 295 - TSMC 2020 Annual Report
P. 295

 Impairment of Tangible Assets, Right-of-use Assets and Intangible Assets Other than Goodwill
In the process of evaluating the potential impairment of tangible assets, right-of-use assets and intangible assets other than goodwill, the Company determines the independent cash flows, useful lives, expected future revenue and expenses related to the specific asset groups with the consideration of the nature of semiconductor industry. Any change in these estimates based on changed economic conditions or business strategies could result in significant impairment charges or reversal in future years.
Realization of Deferred Income Tax Assets
Deferred tax assets are recognized to the extent that it is probable that future taxable profits will be available against which those deferred tax assets can be utilized. Assessment of the realization of the deferred tax assets requires subjective judgment and estimate, including the future revenue growth and profitability, tax holidays, the amount of tax credits can be utilized and feasible tax planning strategies. Any changes in the global economic environment, the industry trends and relevant laws and regulations could result in significant adjustments to the deferred tax assets.
Determination of Lessees’ Incremental Borrowing Rates
In determining a lessee’s incremental borrowing rate used in discounting lease payments, the Company mainly takes into account the market risk-free rates, the estimated lessee’s credit spreads and secured status in a similar economic environment.
Cash and deposits in banks $ 303,165,717
December 31, 2020
December 31, 2019
$ 141,450,698
  Deposits in banks consisted of highly liquid time deposits that were readily convertible to known amounts of cash and were subject to an insignificant risk of changes in value.
Financial assets
Mandatorily measured at FVTPL Forward exchange contracts
Financial liabilities
Held for trading
Forward exchange contracts
December 31, 2020
$ 2,125,825
$ 93,153
December 31, 2019
$ 27,481
$ 982,302
      The Company entered into forward exchange contracts to manage exposures due to fluctuations of foreign exchange rates. These forward exchange contracts did not meet the criteria for hedge accounting. Therefore, the Company did not apply hedge accounting treatment for these forward exchange contracts.
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