Coals are a product in the Fuels category. It's prices vary between 0.85 and 1.15 per CBM.
Coals are produced by the following units:
|Coal mine||3,600 CBM|
Coals are used by the following units:
|Steel mill||150 CBM|
|Silicon smelter||150 CBM|
|Coal power plant||4,200 CBM|
Coals are not required when installing any sector.