Production TBS Company Presentation First Semester 2016

Quarterly Production SR Production in Thousand Tons Production Summary MT: Million Ton 1H15 1H16 Change Comment Sales Volume SR x 3.3 3.1

12.5 13.1

6.1 4.8 1H16 sales volume tracked its 1H16 production volume SR edged up due to pre-stripping at ABN, and in line with mine plan

3.0 2.8

Production volume in 1H16 stabilized at 2.8 mn tons in line with mine plan, while ensuring certain margin and optimizing reserve preservation

6.7 Production

Volume Production Summary MT: Million Tons  Q-o-q production volume of 1.3 mn tons in 2Q16 came in line with 2016 quarterly guidance of 1.25 - 1.75 mn tons  2Q16 SR rose to 13.9x from 12.4x in 1Q16 due primarily to pre-stripping activity at ABN new pit  SR in subsequent quarter is expected to remain at similar level before normalizing in 4Q16 2,160 2,330 1,653 1,505 1,469 1,565 1,529 1,503 1,269 13.8x 12.5x 13.8x 12.4x 12.5x 12.0x 12.1x 12.4x 13.9x 0.0x 5.0x 10.0x 15.0x 20.0x 500 1,000 1,500 2,000 2,500 2Q14 3Q14 4Q14 1Q15 2Q15 3Q15 4Q15 1Q16 2Q16 TOBA Production Volume 000 Stripping Ratio ABN TMU IM PT Kutai Energi Quarterly Production SR Production in Thousand Tons Key Highlights  2Q16 quarterly production decreased y-o-y and q-o-q from 1Q16 and 2Q15 respectively due to pre- stripping activity  SR in 2Q16 rose to 15.0x due to pre- stripping activity at ABN’s opening of new pit 969 987 994 1,071 876 13.3x 13.0x 12.6x 12.9x 15.0x 0x 5x 10x 15x 20x 200 400 600 800 1,000 1,200 2Q15 3Q15 4Q15 1Q16 2Q16 ABN Production Volume 000 Stripping Ratio TMU ABN PT Kutai Energi Quarterly Production SR Production in Thousand Tons Key Highlights  Production increase to 173K tons in 1H16 came in line with 2016 internal quarterly guidance of 125K - 175K tons  SR in 1Q16 stabilized y-o-y and q-o-q at 12.0x 231 319 288 140 173 12.7x 12.2x 13.6x 12.0x 12.0x 0x 5x 10x 15x 50 100 150 200 250 300 350 2Q15 3Q15 4Q15 1Q16 2Q16 IM Production Volume 000 Stripping Ratio ABN IM PT Kutai Energi Note: - - - Hauling road Key Highlights Quarterly Production SR Production in Thousand Tons  2Q16 production volume came in at 220K tons, slightly below 2016 internal quarterly production guidance of 225K-325K tons  2Q16 SR on q-o-q stabilized but edged slightly on y-o-y basis 269 259 247 292 220 9.4x 8.3x 8.3x 10.8x 10.6x 0x 5x 10x 15x 50 100 150 200 250 300 350 2Q15 3Q15 4Q15 1Q16 2Q16 TMU Production Volume 000 Stripping Ratio 17 3 1H16 Financial Highlights Quarterly FOB Cash Cost In USton Notes: 1 FOB Cash Cost = COGS including royalty and selling marketing expense – depreciation and amortization 2 Adj. FOB cash costs = COGS, including selling marketing expense and royalty – depreciation amortization of deferred exploration development costs and excluding deferred stripping cost Divergence between SR averaging at 12x-13x and falling FOB cash cost reflect Toba operating within mine plan and more efficiently over time 60 57 55 55 53 49 49 53 51 50 47 43 41 38 35 35 63 52 59 56 51 52 51 54 50 51 46 42 41 38 34 35 14.2x 12.1x 15.1x 13.6x 12.7x 12.7x 13.5x 13.8x 12.5x 13.8x 12.4x 12.5x 12.0x 12.1x 12.4x 13.9x 0x 3x 6x 9x 12x 15x 18x 21x 20 40 60 80 100 3Q12 4Q12 1Q13 2Q13 3Q13 4Q13 1Q14 2Q14 3Q14 4Q14 1Q15 2Q15 3Q15 4Q15 1Q16 2Q16 FOB cash cost Adj. FOB cash cost SR Notes: 1 FOB Cash Cost = COGS inc. royalty and selling marketing expense – depreciation amortization 2 EBITDA = Gross Profit – selling expenses – GA + depreciation amortization + other non- cash items

23.9 20.2