Return on invested capital Net debt to equity x Cash from operations to capex x Sales volume Mt Overburden removal Mbcm Coal cash cost, excl. royalty USt 40.6 47.7

Figures in US millions unless stated 2008 2009 2010 2011 2012 Financial Performance Net revenue 1,869 2,591 2,718 3,987 3,722 Cost of revenue 1,433 1,534 1,889 2,559 2,680 Gross profit 436 1,057 829 1,428 1,043 EBITDA 506 1,067 883 1,474 1,088 Operating income 305 898 638 1,131 836 Net income 96 417 247 552 383 Basic earnings per share EPS US 0.00392 0.01297 0.00773 0.01721 0.01205 Total assets 3,347 4,530 4,470 5,659 6,692 Total liabilities 1,824 2,648 2,438 3,217 3,697 Stockholders equity 1,523 1,882 2,032 2,442 2,995 Interest-bearing debt 993 1,676 1,592 2,105 2,445 Cash and cash equivalents 221 1,199 607 559 500 Net debt 772 477 985 1,546 1,945 Capex 154 106 245 625 490 Free cash flow EBITDA - Capex 352 960 638 849 598 Financial Ratios Gross profit margin 23.3 40.8 30.5 35.8 28.0 EBITDA margin 27.1 41.2 32.5 37.0 29.2 Operating margin 16.3 34.7 23.5 28.4 22.5 Return on equity 10.6 24.5 12.6 24.7 14.1 Return on assets 3.9 10.6 5.5 10.9

6.2 Return on invested capital

9.5 16.4 9.8 15.1

9.2 Net debt to equity x

0.5 0.3

0.5 0.6

0.6 Net debt to EBITDA x

1.5 0.4 1.1 1.0

1.8 Cash from operations to capex x

0.5 6.6 1.2 1.1 0.9 Operating Statistics Coal production volume Mt

38.5 40.6

42.2 47.7

47.2 Sales volume Mt

41.1 41.4 43.8 50.8

48.6 Overburden removal Mbcm

159.3 208.5 225.9 299.3 331.5 Planned strip ratio x 4.3 5.0 5.5 5.9

6.4 Coal cash cost, excl. royalty USt

27.2 26.9 31.9 35.8 38.9 We expensed our 2012 deferred stripping cost of US55.3 million as part of our strategy to manage our business and balance sheet conservatively. Our EBITDA was in line with our 2012 guidance of US1.0 to US1.3 billion. We reduced our capex spend in 2012 by purchasing less heavy equipment in order to preserve cash. Our balance sheet remained solid with low leverage and access to cash and long-term bank facilities totaling US920 million. Our 2012 production was below guidance of 48-51 Mt as we decided not to sell additional volumes at a discount. As the market recovered, we produced a record quarterly volume of 13.3 Mt in 4Q12. We achieved our planned overburden target of 321 Mbcm, even as coal production decreased, exposing more coal and aiding our ability to lower the strip ratio in 2013. Our coal cash cost was at the bottom end of 2012 guidance of US39 to US42 per tonne due to below-budget fuel costs and cost reduction initiatives. Revenue EBITDA Debt Production 2008 2009 2010 2011 2012 1,869 16.3 2,591 34.7 2,718 23.5 3,987 28.4 3,722 22.5 2008 2009 2010 2011 2012 506 1,067 883 1,474 1,088 27.1 41.2 32.5 37.0 29.2 2008 2009 2010 2011 2012

0.5 0.3

0.5 0.6

0.6 1.5 0.4 1.1 1.0 1.8 2008 2009 2010 2011 2012

38.5 40.6

42.2 47.7

47.2 159.3 208.5 225.9 299.3 331.5 Net Revenue USm Operating margin EBITDA USm EBITDA margin Net debt to equity x Net debt to EBITDA x Coal production Mt Overburden removal Mbcm Capital market regulations were revised in 2012 to require operating income to include other expenses. All years have been restated to reflect this revision. DELIVERING POSITIVE ENERGY 2012 ANNUAL REPORT What Is Positive Energy? Each time we send Envirocoal, the cleanest thermal coal available on the export market, on time and as ordered to our loyal customers, we deliver positive energy. In the passionate work of each of our employees, in the way we conduct ourselves, in the impact we have on those around us and in the contributions we make to society, we deliver positive energy. As we turn a non-renewable resource into a renewable one, as we create maximum sustainable value from Indonesian coal, we deliver positive energy. It is time to see coal for what it really is: positive energy. And in this exciting time of growth in Indonesia and the Asia-Pacific region, it is a great honor to be able to make such a positive impact. At Adaro, we are different from the rest in what we produce and how we behave. We are doing more than just building a great coal and energy company, we are Delivering Positive Energy. DELIVERING POSITIVE ENERGY DELIvERINg POsITIvE ENERgY 4 In Print For a copy of this report in English or Indonesian, e-mail us at investor.relations ptadaro.com As a PDF Download this report in English or Indonesian from www.adaro.com investor_relations reports On adaro.com see our web version of the report at www.adaro.com On your tablet Download the Adaro Annual Report app in the Apple app store. Our Vision To be a leading Indonesian mining and energy group. Our Mission We are in the business of mining and energy to: • Satisfy our customers’ needs. • Develop our people. • Partner with our suppliers. • Support community and national development. • Promote a safe and sustainable environment. • Maximize shareholder value. This Report Is Available: 6 28 114 46 148 162 176 192 116 secrets to success 173 A Note on Indonesias Regulatory Environment 182 Adaro Energy Perception survey 2012 289 Obtaining previous years annual reports 54 Coal: A Rough guide 59 global Coal Markets 2012 61 Maritime Freight 2012 63 What Is Envirocoal? 69 Introducing Envirocoal E4700 127 In Memoriam Andre Mamuaya 189 Corporate Identity Contact Details OU R W O R LD OU R TH O U G HT S OU R B US IN E S S OU R PE O PLE OU R C OMM U N IT IE S OU R G O VE R NAN C E OU R IN V E S TOR S OU R F INAN C E S ADARO ENERgY 2012 ANNUAL REPORT 5 OUR WORLD OUR THOUGHTS OUR BUSINESS OUR PEOPLE OUR COMMUNITIES OUR GOVERNANCE OUR INVESTORS OUR FINANCES 292 GLOSSARY 8 Our Business at a glance 10 2012 as It Happened 11 Why Invest in Adaro? 25 Our Awards in 2012 30 A Letter from the Commissioners 34 A Letter from the Directors 42 President Directors Message 2013 150 Quality, Health, safety Environment 156 social Engagement: Our Community Responsibilities 48 Corporate Overview 62 Coal sales Review 70 Operations Review 86 Financial Review 92 Investing for the Future 102 Exploration Reserves 118 Commissioner Proiles 121 Director Proiles 128 Adaro Energy Management 134 Human Resources 138 Yearbook 2012: Our Winning Team in Photos 164 Corporate governance 169 Risk Management 178 Investor Relations 184 shareholder Information 195 Directors’ statement 196 Independent Auditor’s Report 197 statements of Financial Position Adaro Energy 2012 Annual Report DELIvERINg POsITIvE ENERgY 6 O UR W OR L D ADARO ENERgY 2012 ANNUAL REPORT 7 OU R W O R LD IN THIS SECTION 8 Our Business at a Glance 10 2012 as It Happened 11 Why Invest in Adaro? 25 Our Awards in 2012 OUR WORLD I want Adaro to give the best performance it can to the nation, to the people. Why? It’s very simple. If I can contribute to the country, and later the country becomes a great nation, people become prosperous. They will need more electricity, and the government will need more power plants and more coal. Garibaldi Thohir, President Director Chief Executive Officer PT Adaro Eksplorasi Indonesia AEI Mining exploration 100 owned by Adaro Energy PT Adaro Persada Mandiri APM Land management 100 owned by Adaro Energy PT Adaro Mining Technologies Coal research and development 100 owned by Adaro Energy Adaro Exploration Drilling Services Adaro Land Asset Management Adaro Mining Technologies Jakarta HQ Barito River Taboneo offshore anchorage 1 2 2 3 3 Lampung South Sumatra West Sumatra North Sumatra Jambi Riau SINGA P OR E Bengkulu West Java West Kalimantan M A L A Central Java What Is Adaro? We focus on integrated coal mining through subsidiaries. Our principal location is in South Kalimantan, where we mine Envirocoal, a sub-bituminous, moderate calorific value coal producing ultra-low sulphur, ash and NOx emissions. We are vertically integrated, with pit-to-power subsidiaries including mining, barging, shiploading, dredging, port services, marketing and power generation. Our strategy is to focus on organic growth, improve efficiency and cost control and further integrate our power generation division. In this opening section, see why Adaro is an exceptional company and an excellent prospect for investors. 8 Our Business at a Glance ‘From Pit to Port to Power’ — Adaro Energys subsidiaries are vertically integrated for maximum cost efficiency PT Adaro Indonesia AI Mining license holder 100 owned by Adaro Energy. Operates a coal concession in south Kalimantan currently with three mines: Tutupan, Wara and Paringin. It produced 47.2 million tonnes of Envirocoal sub-bituminous coal in 2012, mostly for blue-chip power utilities. PT Mustika Indah Permai MIP Mining license holder, South Sumatra 75. Pre-production ongoing for sub-bituminous coal. PT Bukit Enim Energi BEE Mining license holder, South Sumatra 61.04 . geological studies for thermal coal mine. PT Bhakti Energi Persada BEP Mining license holder, East Kalimantan 10.22 with option up to 90. Developing mine for low-rank coal. IndoMet Coal Project IMC JV with BHP Billiton, East and Central Kalimantan 25. Developing metallurgical coal. 1 1 1 1 1 1 2 3 4 5 Adaro Mining Assets PT Alam Tri Abadi, 100 AE owned 1 2 3 4 5 1 DELIvERINg POsITIvE ENERgY 8 3 PT Saptaindra Sejati SIS Mining and hauling contractor 100 owned by Adaro Energy PT Jasapower Indonesia JPI Operator of overburden crusher and conveyor 100 PT Servo Meda Sejahtera SMS Coal hauling road operator 35 I N D O N E S I A 1 1 1 5 2 4 Adaro Indonesia mines at Tabalong Central Kalimantan East Kalimantan Southeast Sulawesi Central Sulawesi West Sulawesi Gorontalo East Java South Kalimantan South Sulawesi M A L AYSI A PT Makmur Sejahtera Wisesa MSW Operator of 2x30MW coal- fired mine-mouth power plant 100 PT Bhimasena Power Indonesia BPI Partner in 2x1,000MW power generation project in Central Java 34 South Kalimantan Power Project Partner in 2x100MW power generation project 65 Coaltrade Services International Pte Ltd Marketing 100 owned by Adaro Energy Trading thermal coal, agent for Adaro and third-party coal producers and customers. PT Maritim Barito Perkasa MBP Barging and shiploading 100 PT Harapan Bahtera Internusa HBI Third-party barging and shiploading 100 PT Sarana Daya Mandiri SDM Dredging contractor in Barito River mouth 51.2 PT Puradika Bongkar Muat Makmur PBM Shiploading and barging management 100 PT Indonesia Multi-Purpose Terminal IMPT Port operator 85 PT Indonesia Bulk Terminal IBT Coal and fuel terminal 100 2 1 3 1 3 4 2 5 6 Adaro Logistics Services PT Adaro Logistics, 100 owned by Adaro Energy Adaro Power PT Adaro Power, 100 owned by AE Adaro Marketing Trading Adaro Mining Services 2 1 3 1 Adaro Mining Assets Adaro Exploration Drilling Services Adaro Mining Technologies Adaro Land Asset Management Adaro Energy Group Adaro Mining Services Adaro Logistics Services Adaro Power Adaro Marketing Trading 6 Adaro Marketing Trading OU R W O R LD ADARO ENERgY 2012 ANNUAL REPORT 9 DELIvERINg POsITIvE ENERgY 10 Aug 21 Andre Mamuaya, Director, Corporate Affairs, PT Adaro Energy, passed away. In memoriam, page 127 Jan Adaro Energy share price 2012 May sep Mar Jul Nov Feb Jun Oct Apr Aug Dec 2012 as It Happened March 22 We announced the JORC- Compliant Coal Resources and Reserves for PT Mustika Indah Permai MIP. The JORC-Compliant Coal Resources were estimated at 286.4 million tonnes, of which 272.6 million tonnes were estimated as JORC- compliant coal reserves. Details on page 106-108 May 29 Our barging and shiploading subsidiary, MBP, secured a Us200 million, 7-year 5.75-year average life loan from a group of 10 foreign banks. Details on page 253 July 25 Our subsidiary, AI, received the environmental impact assessment AMDAL approval from the Ministry of Environment to produce 80 million tonnes of coal annually. some of the assessments include a detailed environmental impact analysis, an environmental management plan and an environmental monitoring plan. Details on page 153 Nov 27 Our subsidiary, AI, received the Aditama gold award 2012 for environmental management excellence in the coal sector. The award is given to the best performing companies for environmental management excellence in the coal, mineral and geothermal sector. AI received this award for the third consecutive year. Details on pages 152-153 April 27 We held our Annual general Meeting of shareholders to approve the use of 47.08 of the company’s net income for 2011 to be paid as dividend an interim amount of Us75.17 million paid on Dec. 9, 2011, and the remaining Us183.92 million on June 12, 2012. Details on page 188 May 28 We entered into a convertible loan and share subscription agreement with the option to provide a loan to BEP for up to Us500 million, which is convertible into equity of up to 51 in BEP for a period up to three years Option One, and an option agreement which we are granted to acquire BEP shares from the controlling shareholders of BEP by offering newly issued shares of Adaro Energy Option Two. Details on page 234 Nov 29 Our subsidiary Adaro Indonesia received the gold PROPER award, the highest standard in Indonesian environmental rehabilitation management, becoming the irst mining company to do so since the award was initiated in 2002. AI previously won the green PROPER award, one level below the gold award, for four consecutive years. Details on page 152 1,770 1,590 OU R W O R LD 11 ADARO ENERgY 2012 ANNUAL REPORT Why Invest in Adaro? For Our Core Strengths... Our major shareholders and governance Our strategy to create long-term value Our record for production growth Our respect for people and nature Our coal quality and reserves Our low cost of production Our focus on the Asian growth story Our financial strength Our vertically integrated business 1 5 7 2 6 10 3 8 4 Page 15 Page 16 Page 12 Page 14 Page 20 Page 22 Page 18 Page 19 Page 24 Our experienced management team 9 Page 23 DELIvERINg POsITIvE ENERgY 12 Our Coal Quality and Reserves Adaro controls or has options on 12 billion tonnes of coal resources — including 1.1 billion tonnes of reserves — all in full compliance with JORC standards. We currently produce out of a single concession in South Kalimantan — the largest single-site mine in the southern hemisphere — but we have acquired assets in all of Indonesias four key coal-producing provinces. For our core operation we have a first- generation Coal Cooperation Agreement, a secure contract with the Indonesian government. Our coal is marketed as Envirocoal due to its extremely low ash, nitrogen and sulphur content with heat values ranging from 4,000 kcalkg to 5,000 kcalkg. 12 billion tonnes of coal resources

1.1 billion tonnes

of coal reserves Read More Resources reserves Page 102 About Envirocoal Page 63 Coal acquisitions Pages 96-99 Includes option to control 7 billion tonnes OU R W O R LD ADARO ENERgY 2012 ANNUAL REPORT 13 1-2 Envirocoals average ash content, compared to up to 20 among other globally exported coals. 0.9 Envirocoals average nitrogen content, compared to up to 2.5 among other globally exported coals. 0.2 Envirocoals average sulphur content, compared to up to 2.0 among other globally exported coals.