Quarrying of stone, sand and clay
Quarrying of slate and building and monumental stone other than marble and granite
Operation of sand or gravel pits, basalt / porphyry, clay (ordinary), crushing and breaking of stone for use as a flux or raw material in lime or cement, manufacture or as building material, road metal or ballast and other materials for construction
Mining/quarrying of limestone, limeshell, ?kankar? and other calcareous minerals including calcite, chalk and shale
Mining of clays (kaolin, ball clay, wollastonite, bentonite, fuller?s earth, fire clay etc. )
Mining of refractory non-clay minerals (andalusite, kyanite, sillimanite, dunite, diaspore magnesite, diaspore, magnesite)
Combined facilities support activities
General cleaning of buildings
Other building and industrial cleaning activities
Cleaning of trains buses, planes etc.
Cleaning of industrial machinery
Other building and industrial cleaning activities
Landscape care and maintenance service activities