INDONESIA'S COAL PRODUCTION AND EXPORT
Indonesia is one of the world's largest producers and exporters of coal. Since 2005, when it overtook Australia, the country is leading exporter in thermal coal. A significant portion of this exported thermal coal consists of a medium-quality type (between 5100 and 6100 cal/gram) and a low-quality type (below 5100 cal/gram) for which large demand comes from China and India. According to information presented by the Indonesian Ministry of Energy, Indonesian coal reserves are estimated to last around 83 years if the current rate of production is to be continued. Regarding global coal reserves, Indonesia currently ranks 10th, containing roughly 3.1 percent of total proven global coal reserves according to the most recent BP Statistical Review of World Energy. Around 60 percent of Indonesia's total coal reserves consists of the cheaper lower quality (sub-bituminous) coal that contains less than 6100 cal/gram.
There are numerous smaller pockets of coal reserves on the islands of Sumatra, Java, Kalimantan, Sulawesi and Papua but the three largest regions of Indonesian coal resources are:
1. South Sumatra
2. South Kalimantan
3. East Kalimantan