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- Manufacture of industrial gases (includes manufacture of elemental gases, liquid or compressed air, acetylene refrigerant gases and mixed industrial gases etc.) (7)
- Manufacture of basic organic chemicals n.e.c. (3)
- Manufacture of basic inorganic chemicals n.e.c. (2)
- Manufacture of inorganic acids (nitric acid is included in sub-class 24121). (1)
- Manufacture of turpentine and resins of vegetable origin (1)
- Manufacture of industrial monocarboxilic fatty acids, acid oils from refining and industrial fatty alcohols ; Manufacture of glycerine. (1)