The last ten years have seen the growth of mining companies coal in Indonesia which is very rapid. This is due to increase demand for coal as energy supply in the future makes this industry very attractive to consumers investors. Coal is one of the important energy commodities in Indonesia. Mining has been going on since the Dutch Colonial period. Coal mining by the Dutch Colonial was first carried out on the Island Kalimantan and Sumatra Island which are currently the main producers coal in Indonesia
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