Coal is a readily combustible black or brownish – black sedimentary rock. It is composed primarily of carbon along with variable quantities of other elements, namely sulphur, hydrogen, oxygen and nitrogen. It is formed from vegetation, which has been consolidated between other rock strata and altered by the combined effects of pressure and heat over millions of years to form coal seams.

It is fossil fuel, the largest source of energy for the generation of electricity worldwide, as well as one of the largest worldwide source of carbon dioxide emission. Coal is extracted from the ground by mining, either underground or in open pits.

We can classified the Coal categories with their uses, as shown by the below diagram.

Coal Diagram

We are offering the various grade of coal with different origins as.