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Coal: The Black Treasure
Definition Coal is a combustible black or brownish-black sedimentary rock, primarily composed of carbon along with hydrogen, oxygen, nitrogen, and sulfur, typically formed alongside earthy impurities underground.
History Humans have been using coal as a fuel source since ancient times. With the advent of the Industrial Revolution, coal consumption surged, becoming a primary energy source.
Applications
Coal
Export
Domestic
PT.HARTA BUMI RESOURCES
Indonesian coal
inspection organization
Quality Analysis
The performance of analytical procedure on coal and mineral in custody chain shall meet of standard practice of procedure and accuracy as quality assurance programmed that started from raw material up so we were able to provide the information at every stage of the cycle.
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