PERUSAHAAN PERSEROAN PERSERO PT TELEKOMUNIKASI INDONESIA Tbk AND SUBSIDIARIES
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS AS OF JUNE 30, 2013 UNAUDITED AND FOR SIX MONTHS PERIOD ENDED
WITH COMPARATIVE FIGURES AS OF DECEMBER 31, 2012 AUDITED AND FOR SIX MONTHS PERIOD ENDED JUNE 30, 2012 UNAUDITED
Figures in tables are presented in billions of Rupiah, unless otherwise stated
35
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES continued
aa. Critical accounting estimates and judgements
Estimates and judgements are continually evaluated and are based on historical experience and other factors, including expectations of future events that are believed to be reasonable under the
circumstances.
The  Company  and  subsidiaries  make  estimates  and  assumptions  concerning  the  future.  The resulting  accounting  estimates  will,  by  definition,  seldom  equal  the  related  actual  results.  The
estimates  and  assumptions  that  have  a  significant  risk  of  causing  a  material  adjustment  to  the carrying amounts of assets and liabilities within the next financial year are addressed below.
i. Retirement benefits
The present value of the retirement benefits obligations depends on a number of factors that are determined on an actuarial basis using a number of assumptions. The assumptions used
in determining the net cost income for pensions include the discount rate. Any changes in these assumptions will impact the carrying amount of retirement benefits obligations.
The  Company  and  subsidiaries  determine  the  appropriate  discount  rate  at  the  end  of  each reporting period. This is the interest rate that should be used to determine the present value
of  estimated  future  cash  outflows  expected  to  be  required  to  settle  the  obligations.  In determining  the  appropriate  discount  rate,  the  Company  and  subsidiaries  consider  the
interest rates of government bonds that are denominated in the currency in which the benefits will be paid and that have terms to maturity approximating the terms of the related retirement
benefits obligations.
If there is an improvement in the ratings of such government bonds or a decrease in interest rates as a result of  improving economic  conditions, there could be a material  impact on the
discount rate used in determining the post-employment benefits obligations.
Other key assumptions for retirement benefits obligations are based in part on current market conditions. Additional information is disclosed in Notes 34, 35 and 36.
ii. Estimating useful lives of property and equipment and intangible assets
The Company and subsidiaries estimate the useful lives of their property and equipment and intangible  assets  based  on  expected  asset  utilization,  considering  strategic  business  plans,
expected  future  technological  developments and  market  behavior. The  estimates  of  useful lives  of  property  and  equipment  are  based  on  the  Company  and  subsidiaries  collective
assessment  of  industry  practice,  internal  technical  evaluation  and  experience  with  similar assets.
The  Company  and  subsidiaries  review  estimates  of  useful  lives  at  least  each  financial  year end and are updated if expectations differ from previous estimates due to physical wear and
tear,  technical  or  commercial  obsolescence  and  legal  or  other  limitations  on  the  use  of  the assets. The  amounts  and  timing  of  recorded  expenses  for  any  year  will  be  affected  by
changes  in  these  factors  and  circumstances.  A  change  in  the  estimated  useful  lives  of  the property and equipment is the change in accounting estimates and is applied prospectively in
profit or loss in the period of the change and future periods.
Detail of nature and carrying amounts of property and equipment is disclosed in Note 10 and intangible assets in Note 12.
PERUSAHAAN PERSEROAN PERSERO PT TELEKOMUNIKASI INDONESIA Tbk AND SUBSIDIARIES
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS AS OF JUNE 30, 2013 UNAUDITED AND FOR SIX MONTHS PERIOD ENDED
WITH COMPARATIVE FIGURES AS OF DECEMBER 31, 2012 AUDITED AND FOR SIX MONTHS PERIOD ENDED JUNE 30, 2012 UNAUDITED
Figures in tables are presented in billions of Rupiah, unless otherwise stated
36
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES continued