BIAYA EKSPLORASI DAN PENGEMBANGAN TANGGUHAN lanjutan DEFERRED EXPLORATION UTANG USAHA TRADE PAYABLES

343 Penawaran Umum Perdana Saham – PT Toba Bara Sejahtra Tbk PT TOBA BARA SEJAHTRA DAN ENTITAS ANAK CATATAN ATAS LAPORAN KEUANGAN KONSOLIDASIAN Tahun yang Berakhir pada Tanggal-tanggal 31 Desember 2011, 2010 dan 2009 dan 1 Januari 200931 Desember 2008 Disajikan dalam ribuan Rupiah, kecuali dinyatakan lain PT TOBA BARA SEJAHTRA AND SUBSIDIARIES NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS Years Ended December 31, 2011, 2010 and 2009 and January 1, 2009December 31, 2008 Expressed in thousands of Rupiah, unless otherwise stated

13. BIAYA EKSPLORASI DAN PENGEMBANGAN TANGGUHAN lanjutan

13. DEFERRED EXPLORATION

AND DEVELOPMENT EXPENDITURES continued 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. 14. UTANG USAHA 14. TRADE PAYABLES Disajikan Kembali As Restated Catatan 2 Catatan 2 dan 4 Note 2 Notes 2 and 4 1 Jan. 2009 31 Des. 2008 Jan. 1, 2009 2011 2010 2009 Dec. 31, 2008 Pihak ketiga: Third parties: PT Petrosea, Tbk 70.005.253 30.513.599 39.628.092 - PT Petrosea, Tbk PT Sapta Indra Sejati 64.713.782 48.845.066 40.182.828 66.818.367 PT Sapta Indra Sejati PT Arkananta Apta Pratista 42.028.952 - - - PT Arkananta Apta Pratista PT Surya Teknik Anugerah 19.512.548 - - - PT Surya Teknik Anugerah PT Bangun Karya PT Bangun Karya Pratama Lestari 18.221.635 43.128.360 33.073.340 10.033.810 Pratama Lestari PT Astiku Sakti 6.714.297 - - - PT Astiku Sakti China Enterprise Advisory Ltd. 4.013.149 14.013.526 - - China Enterprise Advisory Ltd. Lik Wah Overseas Lik Wah Overseas Investment Ltd. 3.003.347 - - - Investment Ltd. PT Kalimantan Inti Raharja 2.583.978 - - - PT Kalimantan Inti Raharja Guangdong Materials Group Guangdong Materials Group Hongkong Company Ltd. 2.552.750 - - - Hongkong Company Ltd. PT Pelita Samudra Shipping 2.406.622 5.154.632 3.723.350 - PT Pelita Samudra Shipping PT Pelayaran Kartika PT Pelayaran Kartika Samudera Adijaya 1.925.587 7.750.580 7.658.233 2.619.254 Samudera Adijaya PT Wahyu Rama Tama 1.572.763 674.429 1.474.020 - PT Wahyu Rama Tama PT Indobeta 1.183.562 - - - PT Indobeta PT Duta Jaya Persada 1.150.295 - - - PT Duta Jaya Persada KSU. Pemuda Abadi Jaya 1.033.262 - - - KSU. Pemuda Abadi Jaya PT Runge Indonesia 930.600 - - - PT Runge Indonesia MarstonMarston 628.778 - - - MarstonMarston PT Harma Presis PT Harma Presis Meka Indonesia - 2.373.339 4.903.786 - Meka Indonesia PT Prima Vita Utama - - - 4.192.057 PT Prima Vita Utama Lain-lain dibawah Rp500 juta 3.486.977 2.909.053 32.408.085 22.692.608 Others below Rp500 million Total utang usaha 247.668.137 155.362.584 163.051.734 106.356.096 Total trade payables Utang usaha terutama timbul dari transaksi pembelian barang dan jasa oleh entitas anak. The trade payables primarily arose from the purchase of goods and services by the subsidiaries. Utang kepada PT Petrosea, Tbk dijamin dengan bank garansi Catatan 40.a.ii The trade payables to PT Petrosea, Tbk is secured with bank guarantee Note 40.a.ii. 344 Penawaran Umum Perdana Saham – PT Toba Bara Sejahtra Tbk PT TOBA BARA SEJAHTRA DAN ENTITAS ANAK CATATAN ATAS LAPORAN KEUANGAN KONSOLIDASIAN Tahun yang Berakhir pada Tanggal-tanggal 31 Desember 2011, 2010 dan 2009 dan 1 Januari 200931 Desember 2008 Disajikan dalam ribuan Rupiah, kecuali dinyatakan lain PT TOBA BARA SEJAHTRA AND SUBSIDIARIES NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS Years Ended December 31, 2011, 2010 and 2009 and January 1, 2009December 31, 2008 Expressed in thousands of Rupiah, unless otherwise stated 14. UTANG USAHA lanjutan 14. TRADE PAYABLES continued