Knowledge Center

Getting To Know Coal

As one of the natural mining resource, coal has heterogeneity and high complexity.  A number of exp... read more

The Occurence Of Coal

There are 2 theories that describe the occurence of coal : In-situ Theory : Coal is shaped from p... read more

Coal Types

Through observation of several compounds and elements that were shaped during coalification, there a... read more

Coal Composition

Coal is a solid hydrocarbon compound that is found in natures with a complex composition. The main ... read more

Discovering Coals

Coals can be easily find in its precipitation areas because it is usually exposed on the ground's se... read more

Calculation Of Resource And Coal Reserve

Classification of natural resource and coal reserve geologically determine the borehole distance or ... read more