26.7 21.4 10.5 1.4 17.1 96.2 mn ton 36.9 Company Presentation 1Q 2017

Operational 1Q16 1Q17 Δ Production Vol 1.5

1.1 26.7

Sales Vol 1.4

1.1 21.4

Stripping Ratio x 12.4

13.7 10.5

Sales 63.6

62.7 1.4

EBITDA 2

11.3 17.1

51.3 Net Profit 5.2

10.2 96.2

Financial 1Q16 1Q17 46.8 NEWC Index 81.5

62.0 50.3

ASP 57.2

22.2 mn ton

mn ton USton USton US mn US mn US mn Δ EBITDATon 8.3 15.7 Focused on profitable production output based on mine plan through optimization of :  Infrastructure and connectivity sharing hauling road, coal processing plants CPP, jetties among Group mines  Joint mine plan between three adjacent mines and contractors 1  Competitive coal pricing driven by strong coal branding from consistency in scheduled deliveryproduct quality and securing term contracts using mostly fixed price  Diversified customer base and export market base through suitable mix between end-users and traders, and more evenly spread stable demand markets respectively Note: 1 As per September 2016, all three Group mines of ABN, IM, and TMU have mining contracting cooperation with Cipta Kridatama CK to improve further cost efficiency through economies of scale and better mine planning 2 EBITDA = Gross Profit – selling expenses – GA + depreciation and amortization EBITDA Margin 17.8 27.3 USton FOB Cash Cost US mn

34.8 36.9

6.0 10 4,1 Mt 5,2 Mt 5,6 Mt 6,5 Mt 8,1 Mt 6,1 Mt 5,5 Mt 5.0-6.0 Mt 99 121 97 85 71 59 66 65-70 20 40 60 80 100 120 140 1 2 3 4 5 6 7 8 9 10 2010 2011 2012 2013 2014 2015 2016 2017 est. Toba Consolidated NEWC Price 30,1 32,9 5,7 13,9 13,5 15,4 15,2 Stable margin EBITDA Margin 11 Hauling road completed in May 2013 facilitated 2014 production ramp-up Source: Coal price from GlobalCoal Amidst the coal price volatility over the past several years and to sustain the Company’s survival mode, Toba has undergone cost efficiency initiatives on consistent basis as shown by stable EBITDA margin Situation Solution  Seize dependence on 3 rd party facility and look to internal integration via hauling road construction to connect ABN and utilize IM’s CPP and Jetty  Construction initiated end-2012 and targeted for completion June 2013 Achievement  Hauling road was completed in May 2013, ahead of schedule in June 2013  Logistics cost fell translating to lower cash cost  Production ramp up became viable 2012-2013 Case Study: TMU Ramp-Up in 2014  TMU was unable to boost output due to logistical disadvantage of dependence on 3 rd party facility and subject to high tariff Production Mn tons

8.1 6.5