12.4 1.5 Production Company Presentation 1Q 2015 TBS CP 1Q15

Quarterly Production Stripping Ratio SR Production in Thousand Tons Production Summary MT: Million Ton 1Q14 1Q15 Change Comment Sales Volume mt SR x 1.9 1.9

13.5 12.4

0.0 8.1 Sales volume stabilized at 1.9 mn tons SR continued to fall resulting in lower mining cost

1.9 1.5

Production volume decreased y-o-y to 1Q15 to ensure profitable margin

21.1 Production

Volume mt Production Summary MT: Million Ton  1Q15 production came in line with 2015 quarterly guidance of 1.5- 2.0 mn tons  To anticipate potentially weaker coal prices in 2015, the relatively higher SR in 4Q14 stemmed from higher pre-stripping activities to allow for better coal extraction in subsequent periods.  In line with internal SR guidance, 1Q15 SR decreased to 12.4x vs 13.8 in 4Q14 and 13.5x in 1Q14 1.298 1.501 1.802 1.950 1.911 2.160 2.330 1.653 1.505 15,1x 13,6x 12,7x 12,7x 13,5x 13,8x 12,5x 13,8x 12,4x 0,0x 5,0x 10,0x 15,0x 20,0x 500 1.000 1.500 2.000 2.500 1Q13 2Q13 3Q13 4Q13 1Q14 2Q14 3Q14 4Q14 1Q15 Production Volume 000 Stripping Ratio ABN TMU IM PT Kutai Energi Quarterly Production Stripping Ratio Production in Thousand Tons Key Highlights Dump Dist. m 1,894 1,842 1,853 2,111 2,153  Q-o-q production declined 9.9 to 0.9 mn tons in 1Q15 but in line with 2015 internal guidance  4Q14 SR rose from previous quarters due to relatively high pre-stripping to anticipate better coal extraction during continued weak coal prices in 2015  SR decreased y-o-y by 7.1 to 13.1x in 1Q15 1.003 1.213 1.300 930 904 14,1x 14,9x 12,4x 14,2x 13,1x 0x 5x 10x 15x 20x 200 400 600 800 1.000 1.200 1.400 1Q14 2Q14 3Q14 4Q14 1Q15 Production Volume 000 Stripping Ratio TMU ABN PT Kutai Energi Quarterly Production Stripping Ratio Production in Thousand Tons Key Highlights  Although 1Q15 production volume fell y-o-y to 1Q15, it came in line with 2015 quarterly internal guidance of 200K – 300K tons  SR decreased significantly from 13.7x in 1Q14 and from 13.3x in 4Q14 to 12.0x in 1Q15 Dump Dist. m 1,904 1,751 1,957 1,831 2,255 547 570 700 493 388 13,7x 12,8x 13,3x 13,3x 12,0x 0x 5x 10x 15x 100 200 300 400 500 600 700 800 1Q14 2Q14 3Q14 4Q14 1Q15 Production Volume 000 Stripping Ratio ABN IM PT Kutai Energi Note: - - - Hauling road Key Highlights Quarterly Production Stripping Ratio Production in Thousand Tons  1Q15 production volume came in line with 2015 internal production guidance  SR declined 8.8 and 19.4 from 11.4x in 1Q14 to 10.4x in 1Q15 and from 12.9x in 4Q14 to 10.4x in 1Q15 respectively 362 379 400 231 213 11,4x 11,7x 11,7x 12,9x 10,4x 0x 5x 10x 15x 50 100 150 200 250 300 350 400 450 1Q14 2Q14 3Q14 4Q14 1Q15 Production Volume 000 Stripping Ratio 16 1Q15 Financial Highlights 3 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 exploration development and excluding deferred stripping cost Constant convergence between FOB cash cost and adjusted FOB cash cost underline normalization of SR over quarterly period resulting from more efficient mine operations 67 69 60 57 55 55 53 49 49 53 51 50 47 77 73 63 52 59 56 51 52 51 54 50 51 46 17,7x 16,6x 14,2x 12,0x 15,1x 13,6x 12,7x 12,7x 13,5x 13,8x 12,5x 13,8x 12,4x 0x 3x 6x 9x 12x 15x 18x 21x 20 40 60 80 100 1Q12 2Q12 3Q12 4Q12 1Q13 2Q13 3Q13 4Q13 1Q14 2Q14 3Q14 4Q14 1Q15 FOB cash cost Adj. FOB cash cost SR 15,8 13,9 2,6 3,7 2,6 0,9 1Q14 1Q15 TMU IM ABN 01 0,9 0,5 0,4 0,4 0,2 1Q14 1Q15 TMU IM ABN Production in mt

1.9 1.5