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Indonesia
Borneo Indobara (BIB) Mine

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 Location:
22 km NW from Sebamban Lama, Indonesia

  Regional Office:
Jl. A. Yani
Angsana
Indonesia
72275
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Coal (thermal)
Mining Method
  • Truck & Shovel / Loader
Production Start...
The current concession area has been divided into five mining blocks: Kusan Girimulya (KG), Batulaki South (BS), Sebamban South (SS), Sebamban North (SN) and Pasopati (PP). Mining has been carried out in four blocks – Kusan (KG), Batulaki South (BS), Sebamban South (SS) and Sebamban North (SN).

KG Block still remains as the main operating block to support BIB’s enhanced production along with some production from SN and BS Blocks.


Owners

Source: p. 20
CompanyInterestOwnership
Golden Energy and Resources Ltd. (GEAR) 65.7 % Indirect
GEAR holds the mining rights to the BIB concession through its subsidiary PT Roundhill Capital Indonesia (Net 65.7235%). Tenure at the BIB concession is held under the second generation PKP2B. PKP2B was originally executed between PT Borneo Indobara and PT Tampang Batubara Bukit Asama, a government-owned company for an area of 93,164 ha.

Contractors

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Deposit Type

  • Sedimentary


Summary:

The coal deposits found within the BIB coal concession area are located within the Asem Asem Basin of South-eastern Kalimantan. The Asem Asem Basin has been previously termed the Pasir or Asem Asem sub-basin to the larger Barito Basin.

The BIB coal concession area has a general inverted U shape which follows both limbs of a synclinal structure with an approximate north-northeast trending synclinal axis. The seams generally display shallow dips of around 20 degrees but dips can increase locally up to around 60 degrees. The entire Pasopati resource area, which is adjacent to obducted basement volcanic and ophiolites, exhibits dips of around 60 degrees. The increased dip in the Pasopati resource area is associated with increased coal rank, as seen from the fact that coals in the Pasopati area have in general higher calorific values compared to coals in the rest of the concession.

Structure within the area is relatively benign, with most of the significant faults in the area consisting of the north-east trending thrust faults that follow the general trend of the fold axes. Normal and block faulting is seen mainly in the basement (Pre-Tertiary) rocks (Panggabean, 1991). However, localised increase in seam dips have been observed in the coal models constructed for resource estimation purposes and this may be due to as yet un-mapped faults.

Kusan Girimulya (KG Block)
The deposit at KG Block contains approximately 54 modelled coal seams of which ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The mining schedule for the BIB concession blocks includes 4 existing open-cut mines, Kusan Girimulya (KG), Batulaki South (BS), Sebamban North (SN) and Sebamban South (SS) and a proposed open-cut mine at Pasopati (PP) with a target combined total coal production of 45 Mtpa from all the pits from the year 2023 onwards.

The mining operation in BIB is an open-pit mine using standard truck and excavator methods which are a common practice in Indonesia. Waste material is mined using hydraulic excavators and loaded into standard rear tipping off-highway trucks and hauled to dumps in close proximity to the pits or to in-pit dumps where possible. For the purpose of this Report, it is proposed that contractors will continue to be used for mining and haulage operations over the life of mine, and the unit costs used for the Reserve estimate reflect this style of mining.

All pits except for Pasopati block have been designed such that low walls commenced at the sub crops and followed the coal floors. The overall highwall batter angle approximately varies from 20 to 35 degrees as the ultimate pit depth ranges from a little more than 80 m to 200 m. This was done in accordance with the geotechnical study done on the KG Block.

In Pasopati, it was not possible to follow any seam floor at the lowwall side because of the block's steeply dipping stratigraphy. Hence a geotechnically stable batter angle was selected for this block and used for the pit design. As a ........


Crushing and Grinding


Processing

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Summary:

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Production:

CommodityUnits2022202120202019201820172016
Coal (thermal) Mt  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required20137.5
Sulfur%0.22
^ Guidance / Forecast.
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Reserves at December 31, 2021:

CategoryTonnage Commodity
Proven 595.6 Mt Coal (thermal)
Probable 107.2 Mt Coal (thermal)
Proven & Probable 702.8 Mt Coal (thermal)
Measured 935 Mt Coal (thermal)
Indicated 378 Mt Coal (thermal)
Inferred 543 Mt Coal (thermal)
Total Resource 1,856 Mt Coal (thermal)



Heavy Mobile Equipment as of December 31, 2021:
HME TypeModelSizeLeased or
Contractor
Excavator 200 t Leased
Excavator 110 t Leased
Excavator ....................... Subscription required Leased
Truck (haul) 30 t Leased
Truck (haul) 60 t Leased
Truck (haul) 100 t Leased
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Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Aug 10, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 10, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 31, 2021
....................... Subscription required ....................... Subscription required Subscription required Aug 10, 2022
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Staff:

EmployeesYear
Subscription required 2021
Subscription required 2020
Subscription required 2019
Subscription required 2018

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
Annual Report 2018
Annual Report 2017
Annual Report 2016
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