Jorong Barutuma Gretson (JBG) coal mine

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This article is part of the Global Coal Mine Tracker, a project of Global Energy Monitor.

The Jorong Barutuma Gretson (JBG) is an opencast coal mine, operated by PT Jorong Barutuma Gretson, a subsidiary of Inda Tambangraya Megah, producing 1.2 million tonnes per annum, located 105 km south of Banjarmasi, South Kalimantan, Indonesia.

In 2017, the mine closed due to reserve depletion, but in 2021 was open again with an estimated reserve size of 11.8 million tonnes.[1]


The map below shows the approximate location of JBG near Jorong, within Tanuh Luat, South Kalimantan, Indonesia.[2]

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According to, JBG operates as a wholly­ owned subsidiary of Indonesia-listed mining firm PT Inda Tambangraya Megah Tbk. (ITM) whose shares are majority-owned by the BanpuGroupofThailand (BanpuPie.) through PT Centralink Wisesa International (CWI).” [2]

Production at the mine began in 1999 and, according to in 2016, was planned to cease in 2017, due to reserves depletion.

Project Details

  • Owner: Jorong Barutuma Gretson [2]
  • Parent company: Inda Tambangraya Megah Tb[2]
  • Location: Near Jorong, Tanuh Luat, South Kalimantan, Indonesia[2]
  • GPS coordinates:-3.978889, 114.967228
  • Mine status: Operating
  • Start year: 1999[2]
  • Mineable reserves: 11.8 million tonnes[1]
  • Coal type: sub-bituminous coal
  • Mine size: 10,515 hectares[2]
  • Mine type: Surface
  • Production: 2.14 million tons per annum[1]
  • Equipment:
  • Number of employees:

Articles and resources


  1. 1.0 1.1 1.2 Indonesian Coal Book 2020/2021
  2. 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Alexander Ginting (Publisher), Robert Sihotang (Project Leader), Reiner Simanjuntak, Johannes Simbolon, Tyasno Hery, Rudi Simangunsong, Adianto Simamora, Godang Sitompul, Romel S., Yuda Prihatna, Abdul Karim, lpunk AF [Indonesian Coal Book 2016/2017], Petromindo.Com, May 2016 Release

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