CAEN Code 3521: Manufacture of gas
This class includes:
- production of gas for the purpose of gas supply by carbonation of coal, from by-products of agriculture or from waste
- manufacture of gaseous fuels with a specified calorific value, by purification, blending and other processes from gases of various types including natural gas
This class excludes:
- production of crude natural gas, see CAEN 0620
- operation of coke ovens, see CAEN 1910
- manufacture of refined petroleum products, see CAEN 1920
- manufacture of industrial gases, see CAEN 2011
Also used for in caselaw:
- Gasification of lignite
- Transformation of pipeline natural gas into compressed natural gas (CNG) off mine site