GS0011: compounds in the nature of chemical sorbents used for the removal and capture of pollutants from combustion gas streams; chemical compounds obtained from the processing of chemical sorbents used for the removal of pollutants from combustion gases, directed to industrial concerns
GS0111: pollution control and removal units and scrubbers for combustion gas streams in the field of environmental control, and waste stream reduction for combustion gas streams, directed to industrial concerns
GS0421: consulting in the field of pollution and environmental control of combustion gas streams, waste stream reduction for combustion gas streams, and generation of useful, marketable products from pollutants removed from combustion gas streams, directed to industrial concerns