BIAYA EKSPLORASI DAN PENGEMBANGAN TANGGUHAN lanjutan DEFERRED EXPLORATION

PT TOBA BARA SEJAHTRA TBK DAN ENTITAS ANAK CATATAN ATAS LAPORAN KEUANGAN INTERIM KONSOLIDASIAN TIDAK DIAUDIT 30 Juni 2012 dan 31 Desember 2011 dan Enam bulan yang berakhir pada tanggal-tanggal 30 Juni 2012 dan 2011 Disajikan dalam Dolar Amerika Serikat, kecuali dinyatakan lain PT TOBA BARA SEJAHTRA TBK AND SUBSIDIARIES NOTES TO THE INTERIM CONSOLIDATED FINANCIAL STATEMENTS UNAUDITED June 30, 2012 and December 31, 2011 and Six months ended June 30, 2012 and 2011 Expressed in United States Dollar, unless otherwise stated 50

12. BIAYA EKSPLORASI DAN PENGEMBANGAN TANGGUHAN lanjutan

12. DEFERRED EXPLORATION

AND DEVELOPMENT EXPENDITURES continued Mutasi biaya eksplorasi dan pengembangan tangguhan selama masing-masing periode pelaporan adalah sebagai berikut: The movement of deferred exploration and development expenditures during the respective reporting periods were as follows: 30 Juni 2012June 30, 2012 Saldo Awal Saldo Akhir Beginning Penambahan Pengurangan Reklasifikasi Ending Balance Additions Deduction Reclassification Balance Harga perolehan Acquisition costs Tambang produksi 27.665.379 7.408.848 - 57.388 35.131.615 Producing mines Pengembangan dan Development and konstruksi 5.009.894 - - - 5.009.894 construction Eksplorasi 14.229.255 510.110 - 57.388 14.681.977 Exploration 46.903.528 7.918.958 - - 54.822.486 Akumulasi penyusutan Accumulated depreciation Tambang produksi 3.446.756 568.446 - - 4.015.202 Producing mines 3.446.756 568.446 - - 4.015.202 Nilai buku neto 43.456.772 50.807.284 Net book value 31 Desember 2011December 31, 2011 Saldo Awal Saldo Akhir Beginning Penambahan Reklasifikasi` Translasi Ending Balance Additions Reclassification translation Balance Harga perolehan Acquisition costs Tambang produksi 10.546.439 6,602,911 10,701,964 185,935 27.665.379 Producing mines Pengembangan dan Development and konstruksi 4,312,380 696,514 5.009.894 construction Eksplorasi 16,950,443 7,304,605 10,701,964 676,171 14.229.255 Exploration 31,809,262 14,604,030 - 490.236 46.903.528 Akumulasi penyusutan Accumulated depreciation Tambang produksi 2,328,021 1,116,880 - 1,856 3.446.756 Producing mines 2,328,021 1,116,880 - 1,856 3.446.756 Nilai buku neto 29,481,242 43.456.772 Net book value Pemulihan biaya eksplorasi dan pengembangan tangguhan bergantung pada keberhasilan pengembangan dan eksploitasi komersial atau penjualan area of interest tersebut. Ultimate recovery of deferred exploration and development expenditures is dependent upon successful development and commercial exploitation, or alternatively, sale of the respective area of interest. Pembebanan amortisasi biaya eksplorasi dan pengembangan tangguhan dibebankan sebagai biaya produksi. Amortization of deferred exploration and development expenditures were charged to cost of production. PT TOBA BARA SEJAHTRA TBK DAN ENTITAS ANAK CATATAN ATAS LAPORAN KEUANGAN INTERIM KONSOLIDASIAN TIDAK DIAUDIT 30 Juni 2012 dan 31 Desember 2011 dan Enam bulan yang berakhir pada tanggal-tanggal 30 Juni 2012 dan 2011 Disajikan dalam Dolar Amerika Serikat, kecuali dinyatakan lain PT TOBA BARA SEJAHTRA TBK AND SUBSIDIARIES NOTES TO THE INTERIM CONSOLIDATED FINANCIAL STATEMENTS UNAUDITED June 30, 2012 and December 31, 2011 and Six months ended June 30, 2012 and 2011 Expressed in United States Dollar, unless otherwise stated 51 13. UTANG USAHA 13. TRADE PAYABLES