The STT project area covers a total of 4,600 ha of land located in the Damai sub district of the Kutai Barat regency in the Indonesian province of East Kalimantan. Tenure for STT is held under an operation production IUP granted on 26 October 2012 and valid for a period of 20 years. The validity of the STT mining license is effective through to October 2032. The area is classified as 50% APL and 50% production forest (Hutan Produksi – HP). An IPPKH will be required for all mining and exploration activities within the HP zone.

STT has not commence coal production. Coal within the STT concession is characterised as low moisture, low ash, high sulphur and high energy coal.

 Category  Units Moisutre Base Exploration Target Range Estimate1
Coal Quantity 
Tonnage Mt adb 1 - 25
Coal Quality
Total Moisture % ar 3 - 13
Inherent Moisture % adb 2 - 5
Ash % adb 2 - 20
Volatile Matter % adb 36 - 44
Five Carbon % adb 42 - 55
Total Sulphur % adb 0.8 - 6
Calorific Value kcal/kg adb 6,455 - 8,065
gar 6,197 - 7,934
CSN   adb 0 - 7

1 The estimated Exploration Target coal quantity and quality is conceptual in nature, there has been insufficient exploration to estimate a Mineral Resource and it is uncertain if further exploration will result in the estimation of a Mineral Resource.

Mt = Million tonnes
ar = as received
adb = air dried basis
gar = gross as received