Production volume in 1Q16 stabilized at mn tons in

Quarterly Production SR Production in Thousand Tons Production Summary MT: Million Ton 1Q15 1Q16 Change Comment Sales Volume SR x 1.9 1.4 12.4 12.4 26.3 0.0 1Q16 sales volume tracked its 1Q16 production volume SR stabilized in line with mine plan 1.5 1.5 Production volume in 1Q16 stabilized at 1.5 mn tons in line with mine plan, while ensuring certain margin and optimizing reserve preservation

0.0 Production

Volume Production Summary MT: Million Tons  Q-o-q production volume of 1.5 mn tons in 1Q16 came in line with 2016 quarterly guidance of 1.25 - 1.75 mn tons  1Q16 SR stabilized at 12x level, in line with annual and quarterly SR guidance of 11x - 12x  Quarterly SR of 12.4x in 1Q16 remained the same as that in 1Q15 12 1,911 2,160 2,330 1,653 1,505 1,469 1,565 1,529 1,503 13.5x 13.8x 12.5x 13.8x 12.4x 12.5x 12.0x 12.1x 12.4x 00x 05x 10x 15x 20x 400 800 1,200 1,600 2,000 2,400 1Q14 2Q14 3Q14 4Q14 1Q15 2Q15 3Q15 4Q15 1Q16 TOBA Production Volume 000 Stripping Ratio ABN TMU IM PT Kutai Energi Quarterly Production SR Production in Thousand Tons Key Highlights  1Q16 quarterly production increased y-o-y and q-o-q from 4Q15 and 1Q15 respectively, both in line with internal guidance  SR in 1Q16 stabilized at 12.9x level from 4Q15, and edged down from 13.1x in 1Q15 13 904 969 987 994 1,071 13.1x 13.3x 13.0x 12.6x 12.9x 0x 5x 10x 15x 20x 200 400 600 800 1,000 1,200 1Q15 2Q15 3Q15 4Q15 1Q16 ABN Production Volume 000 Stripping Ratio TMU ABN PT Kutai Energi Quarterly Production SR Production in Thousand Tons Key Highlights  Production decrease to 140K tons in 1Q16 came in line with 2016 internal quarterly guidance of 125K - 175K tons  SR in 1Q16 stabilized y-o-y from 1Q15 at 12.0x 14 388 231 319 288 140 12.0x 12.7x 12.2x 13.6x 12.0x 0x 5x 10x 15x 50 100 150 200 250 300 350 400 450 1Q15 2Q15 3Q15 4Q15 1Q16 IM Production Volume 000 Stripping Ratio ABN IM PT Kutai Energi Note: - - - Hauling road Key Highlights Quarterly Production SR Production in Thousand Tons  1Q16 production volume came in at 292K tons, in line with 2016 internal quarterly production guidance of 225K-325K tons  1Q16 SR on q-o-q and y-o-y basis edged up to 10.8x from 8.3x in 4Q15 and 10.4x in 1Q15 15 213 269 259 247 292 10.4x 9.4x 8.3x 8.3x 10.8x 0x 5x 10x 15x 50 100 150 200 250 300 1Q15 2Q15 3Q15 4Q15 1Q16 TMU Production Volume 000 Stripping Ratio 16 1Q16 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 deferred exploration development costs 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 17 60 57 55 55 53 49 49 53 51 50 47 43 41 38 35 63 52 59 56 51 52 51 54 50 51 46 42 41 38 34 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 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 FOB cash cost Adj. FOB cash cost SR

13.9 10.6