Deferred exploration and development expenditure

142 Adaro Energy Annual Report 2008 www.adaro.com Adaro in Summary From Us to You Running Adaro Management Report Owning Adaro PT ADARO ENERGY Tbk Schedule 510 FORMERLY PT PADANG KARUNIA AND SUBSIDIARIES NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS 31 DECEMBER 2008 AND 2007 Expressed in million Rupiah, unless otherwise stated

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES continued

p. Provision for employee benefits continued

i Post-retirement benefit obligations continued The liabilities recognised in the consolidated balance sheets in respect of the defined benefit pension plan are the present value of the defined benefit obligation at the balance sheet date less the fair value of plan assets, together with adjustments for unrecognised actuarial gains or losses and past service costs. The defined benefit obligation is determined based on the periodic calculation of independent actuaries using the projected unit c redit method. The present value of the defined benefit obligation is determined by discounting the estimated future cash outflows using interest rates of high quality government bonds considering currently there is no deep market for high-quality corporate bonds that are denominated in the currency in which the benefit will be paid, and that have terms of maturity approximating the terms of the related pension liabilities. Actuarial gains and losses arising from experience adjustments, changes in actuari al assumptions and amendments to the pension plan, when exceeding 10 of the defined benefit or 10 of the fair value of the programme’s assets, are charged or credited to the consolidated statement of income over the average remaining service lives of the related employees. ii Termination benefits Termination benefits are payable whenever an employee’s employment is terminated before the normal retirement date. The Group recognises the termination benefits when it is demonstrably committed to terminati ng the employment of current employees according to a detailed formal plan with a low possibility of withdrawal.

q. Taxation

Deferred income tax is provided using the liability method for all temporary differences arising between the tax bases of assets and liabilities and their carrying values for financial reporting purposes. The tax rate used to calculate the deferred income tax by the Company and its subsidiaries, except for Adaro, is the current or substantially enacted tax rate. The tax rate used by Adaro is, according to CCA, 35 for the first 10 years from the date of the agreement and 45 for the subsequent years. Deferred tax assets relating to future tax benefits and the carry forward of unused tax losses are recognised to the extent that it is probable that future taxable profit will be available against which the future tax benefits and unused tax losses can be utilised. Amendments to taxation obligations are recorded when an assessment is received or, if appealed against, when the results of the appeal are determined.

r. Revenue and expense recognition

Revenue represents revenue earned from the sale of the Group’s products and services, net of returns, trade allowances, duties and Value Added Tax “VAT”. Revenue from sales of goods is recognised when all the following conditions are met: - the Group has transferred to the buyer the significant risks and rewards of ownership of the goods; - the Group retains neither continuing managerial involvement nor effective control over the goods sold; - the amount of revenue can be measured reliably; - it is probable that the economic benefits associated with the transaction will flow to the Group; and - the costs incurred or to be incurred with respect to the sales transaction can be measured reliably. When the outcome of a transaction involving the rendering of services can be estimated reliably, revenue associated with the transaction should be recognised by reference to the stage of completion of the transaction at the balance sheet date. The outcome of a transaction can be estimated reliably when all the following conditions are met: - the amount of revenue can be measured reliably; - it is probable that the economic benefits associated with the transaction will flow to the Group; - the stage of completion of the transaction at the balance sheet date can be measured reliably; and - the costs incurred for the transaction, and the costs to complete the transaction, can be measured reliably. When the outcome of a transaction involving the rendering of services cannot be estimated reliably, revenue is recognised only to the extent of the expenses recognised that are recoverable. Expenses are recognised as incurred on an accrual basis.