Adaro Services

Mining Services

PT Saptaindra Sejati

PT Saptaindra Sejati (SIS) is one of Indonesia’s leading mining contractors that provides a broad range of services for coal mining companies, covering many aspects from contract mining, mine planning, civil works, infrastructure development, land logistics and reclamation of mining areas. Due to its large exposure to customers in the coal mining sector, SIS can be directly impacted by the fluctuations of coal prices.

Following a robust coal price environment in 2017, 2018 started with a stronger outlook for the coal industry so SIS’s customers planned to increase operational activities to seize the upside of the positive coal market. This positive sentiment supported SIS’s execution of its strategic plans, as reflected in its capital spending and investments during the year. SIS recorded capex of US$269 million in 2018 mainly to purchase, acquire and replace heavy equipment, develop infrastructure, purchase of other supporting equipment and major refurbishments.

At the end of 2018, SIS owned more than 2,000 units of heavy equipment, including 400-tonne class face shovels and excavators, 200-tonne capacity of dump truck and 136-tonne capacity off highway haul trucks, giving it an annual capacity of 44.9 Mt and 220.6 Mbcm. SIS is committed to partner with its customers and be the preferred mining contractor and continues to deliver projects on time, within budget, incident-free and in an environmentally sustainable manner that is in harmony with the local community.

SIS recorded solid operations in 2018 as overburden removal volume increased by 23% over 2017 to 220.6 Mbcm while coal production volume increased by 27% y-o-y to 44.9 Mt. The higher volume came from both coal mining companies under the Adaro Group and third party customers, resulting in a y-o-y increase in revenue of 32% to US$711 million in 2018. The Adaro Group accounted for 55% of SIS’s total overburden removal and 80% of total coal production volume.
SIS handled 44% and 56% of PT Adaro Indonesia’s overburden removal and coal production respectively in 2018, and all of overburden removal and coal production of Balangan Coal Companies. While continuing to serve the Adaro Group as its captive market, SIS remains committed to seek for growth opportunities from third-party relationships.

In 2018 SIS logged a total of 40,700,947 working hours and maintained a strong safety performance throughout the year. SIS achieved LTIFR of 0.02 and SR of 0.15, and received Aditama Award and Subroto Award from the Ministry of Energy and Mineral Resources as a recognition of its relentless efforts in mine safety improvement and management.

Our History

PT Saptaindra Sejati started its business in 1991 as a small subcontractor for heavy equipment named Dianlia Setyamukti. The business developed and successfully became a mining contractor, and among the several first projects it was awarded were for PT Adaro Indonesia and PT Berau Coal.

In 2002, the shareholders and the management agreed to transfer all operational activities, consisting of staff and assets, gradually into PT Saptaindra Sejati (SIS). SIS was acquired by Adaro Energy in 2008.

Overburden removal and coal transportation are our main expertise. Through many years of working with a range of clients in differing conditions, we have gained a wealth of experience in the types of environment that characterize most mines in Indonesia.

Our workforce is trained and experienced in all required activities including planning, overburden removal, coal production and support activities needed to provide efficient mining. We use modern equipment and comply with all applicable safety standards.

With our well-maintained dump trucks and trailers, we can transfer coal efficiently from mining locations to ROM stockpiles and client shipping locations. We understand that every mining service is different and thus requires a specifically designed solution. SIS operates a different fleet for every hauling operation; this means that even for the most difficult areas coal can be hauled efficiently.

Moreover, SIS has adopted several cutting-edge mining technologies to improve the services; among these are using high-capacity machinery and adopting real-time tracking in fleet management. This system, adopted in 2010, uses micro-controllers for heavy equipment and Global Positioning System (GPS) technology to track the location and evaluate the performance of equipment on site.

SIS is also a leader in the use of dewatering technology, with material-breaking dredger pumps introduced in early 2011.

SIS is constantly striving to improve its services by applying the best technologies available to increase efficiencies, especially during the current difficult coal market condition.

SIS has implemented the “jigsaw system” technology, a real-time tracking method to maximize efficiencies and cost savings. It has also obtained several international certificates for quality assurance, such as ISO 9001:2008 for Quality Management System, OHSAS 18001:2007 for Occupational Health and Safety Management System, and ISO 14001:2004 for Environmental Management System.

Key Financial Highlights (US$ million) 2014 2015 2016 2017 2018
Total assets 559,7 439,0 470,1 532,5 757,5
Total liabilities 412,9 267,8 283,4 389,8 587,2
Interest-bearing debt 335,5 210,8 202,4 249,7 434,2
Total equity 146,8 171,2 186,7 142,7 170,5
Revenue 486,4 432,6 443,2 537,4 711,0
Operating Statistics
Overburden Removal (Mbcm) 174,3 151,1 163,1 179,1 220,6
Coal Getting (Mt) 30,3 29,5 35,3 35,5 44,9

With its 1,300-strong fleet of heavy mining and support equipment, SIS has a continual flow of machinery that is surplus to requirement through being replaced by newer or upgraded units.

We have recently begun offering for sale good-quality used units and have a supply of approximately 30 units available for sale at any one time, including dump trucks, excavators, articulated trucks, dozers, motor graders and others.

For more details and full specifications, please see

Contact us directly at or call: +62 21 769 3378 (Hunting)

Heri Iswantara  (ext 2000-3401)

Aldhi Wibawa (ext 2000-3402)

Poly Mahendra (ext 2000-3406)

PT Adaro Jasabara Indonesia

PT Adaro Jasabara Indonesia (AJI) is a company under the Adaro Services pillar offering a range of services to AE’s other subsidiaries, which include acting as “owner’s engineers” and providing construction surveillance, strategic mine planning, exploration and geotechnical drilling and mine water management. In addition, AJI also offers management services to third-party contractors for ensuring adherence to the Adaro Group’s safety standards.

In 2018, AJI worked on 154 projects, of which the biggest has been providing engineering surveillance for PT Maruwai Coal at their Lampunut mine project. Other important projects include a crushing plant for PT Adaro Indonesia, drilling at PT Adaro Indonesia and Balangan Coal Companies’ sites, strategic studies for various AE’s mining companies, road designs and evaluations, and coal exploration and geotechnical evaluation.

As at 31st December 2018, AJI employed 64 people, the majority of which are classed as engineers and professionals. Their experience and work ethics determines AJI’s ability to undertake and complete multiple projects.

PT Jasapower Indonesia

PT Jasapower Indonesia (JPI) is the operator of the Out-of-Pit Overburden Crusher and Conveyor system (OPCC) at AI’s Tutupan mine. The OPCC is an infrastructure built as part of AE’s continuous efficiency improvement along the coal supply chain with the goal to handle AI’s growing overburden removal volume and overcome the challenge in hauling the overburden over longer distance.

The OPCC has two crushing stations of 7,000 and 12,000 tonne per hour. Overburden material is transported 10 kilometers from the hopper to disposal area and is stacked and spread by a mobile conveyor according to the design of the overburden disposal area.

The OPCC is powered by electricity generated by AE’s subsidiary PT Makmur Sejahtera Wisesa from its 2x30MW coal-fied mine-mouth power station nearby. The use of coal-fired power for the OPCC has helped to reduce dependency on diesel fuel.

Throughout the year, JPI continued to maintain operational excellence, which was underlined by rigorous implementation of operational safety standards.

Coaltrade Services International Pte Ltd

Coaltrade Services International Pte. Ltd. (CTI) is AE’s subsidiary based in Singapore running the business as a coal trader, marketing agent, and coal terminal service agent. CTI plays a strategic role for the Adaro Group by providing agency services and giving the group the access to international marketing networks for the group’s exports to certain destination countries and geographic areas, observing the global and regional trends of coal production, supply, demand and pricing, working closely with AE’s port management subsidiary PT Indonesia Bulk Terminal to supply coal from a variety of producers particularly from South and East Kalimantan, and trading the third-party coals when the opportunity arises.

CTI delivered strong results in 2018 with coal sales increased by 95% to 8.69 Mt. CTI is developing new relationships in the global coking coal markets and with the robust outlooks of the global coal demand, this will lead to CTI’s continuous growth for the longer term. Increasing third-party businesses continues to be one of CTI’s priorities and therefore CTI maintains its clients by providing quality services and using the group’s networks to develop new relationships in the global coking coal markets. The robust outlooks for global coal demand and the growth potentials in Asia’s coal trades are expected to bring a positive impact to CTI’s trading volume and activities, thus generating higher revenue contribution to the Adaro Group in the coming years.

Last modified on April 23, 2019, 4:18 pm | 121294