SDJ has been engaged in coal mining activities in South Kalimantan since 2002, and currently holds a 235 ha coal concession by virtue of a Production Operation IUP granted in June 2014 and valid until May 2022.
SDJ commenced coal production from the concession in December 2015 and delivered the first shipment of 55,000 tonnes of coal to China in January 2016. The Group shipped its first capesize vessel of coal of 153,240 tonnes from SDJ in December 2017.

SDJ has engaged open-cut coal mining contractor BUMA, a subsidiary of Indonesia-listed mining services firm PT Delta Dunia Makmur Tbk.,
to conduct mining operations.
SDJ achieved a coal production and delivery of 7.7 million tonnes in 2017.

Concession Area
The SDJ concession covers an area of 235 ha, and is administratively located in Angsana and Sungai Lohan districts, Tanah Bumbu regency,
South Kalimantan.

The easiest way to reach the concession area from Jakarta is to take a two-hour domestic flight to the province’s capital of Banjarmasin and then continue the trip by car to Tanah Bumbu for approximately three hours. From Tanah Bumbu, the concession area can be reached within approximately thirty minutes via a regional tarred road and then palm plant haul road.

 Category   Mineral Type  Gross Attributable to License 1    Net Attributable to Issuer 4  Remarks
Grade Tonnes
Grade Change from
previous update
Reserves 5              
Proved  Coal 24.2 Sub-bituminous
Rank C
23.9 Sub-bituminous
Rank C
- 13.88% Changes due to
Probable Coal 8.8 Sub-bituminous
Rank C
8.7 Sub-bituminous
Rank C
- 4.35%
Total Coal 33 Sub-bituminous
Rank C
32.7 Sub-bituminous
Rank C
- 11.53%
Resources 3 & 5
Measured Coal 25.5 Sub-bituminous
Rank C
25.2 Sub-bituminous
Rank C
- 2.30% Changes due
to production
Indicated Coal 10.2 Sub-bituminous
Rank C
10.1 Sub-bituminous
Rank C
- 1.92%
Inferred Coal 0.3 Sub-bituminous
Rank C
0.3 Sub-bituminous
Rank C
- 0.00%
Total Coal 36 Sub-bituminous
Rank C
35.6 Sub-bituminous
Rank C
- 2.17%

1 License refers to SDJ Production Operation IUP.
2 Previous coal reserves and resources estimates as at 31 December 2016.
3 Resources are inclusive of reserves.
4 The results presented are rounded to reflect the accuracy of the estimates. Minor discrepancies are due to rounding and are not considered material by SMGC.
5 Reserves and resources are reported in accordance with SMGC’ interpretation of the JORC Code 2012 Edition.