Manufacture of basic chemicals

This class excludes: - extraction of methane, ethane, butane or propane, see 0620 - manufacture of fuel gases such as ethane, butane or propane in a petroleum refinery, see 1920 - manufacture of nitrogenous fertilizers and nitrogen compounds, see 2012 - manufacture of ammonia, see 2012 - manufacture of ammonium chloride, see 2012 - manufacture of nitrites and nitrates of potassium, see 2012 - manufacture of ammonium carbonates, see 2012 - manufacture of plastics in primary forms, see 2013 - manufacture of synthetic rubber in primary forms, see 2013 - manufacture of prepared dyes and pigments, see 2022 - manufacture of crude glycerol, see 2023 - manufacture of natural essential oils, see 2029 - manufacture of aromatic distilled waters, see 2029 - manufacture of salicylic and O-acetylsalicylic acids, see 2100 52 Group Class Sub- class Description