05.10.Z - Mining of hard coal
05.20.Z - Mining of lignite
06.10.Z - Extraction of crude petroleum
06.20.Z - Extraction of natural gas
07.10.Z - Mining of iron ores
07.21.Z - Mining of uranium and thorium ores
07.29.Z - Mining of other non-ferrous metal ores
08.11.Z - Quarrying of ornamental stone, limestone, gypsum, slate and other stone
08.12.Z - Operation of gravel and sand pits and mining of clay and kaolin
08.91.Z - Mining of chemical and fertiliser minerals
08.92.Z - Extraction of peat
08.93.Z - Extraction of salt
08.99.Z - Other mining and quarrying n.e.c.
09.10.Z - Support activities for petroleum and natural gas extraction
09.90.Z - Support activities for other mining and quarrying
20.1 - Manufacture of basic chemicals, fertilisers and nitrogen compounds, plastics and synthetic rubber in primary forms
20.5 - Manufacture of other chemical products
33.1 - Repair and maintenance of fabricated metal products, machinery and equipment
33.20.Z - Installation of industrial machinery and equipment
35.2 - Manufacture of gas, and distribution of gaseous fuels through mains
42.2 - Construction of utility projects
42.9 - Construction of other civil engineering projects
43.13.Z - Test drilling and boring
43.99.Z - Other specialised construction activities n.e.c.
46.12.Z - Activities of agents involved in the wholesale of fuels, ores, metals and industrial chemicals
46.14.Z - Activities of agents involved in the wholesale of machinery, industrial equipment, ships and aircraft
46.19.Z - Activities of agents involved in non-specialised wholesale
46.5 - Wholesale of information and communication equipment
46.63.Z - Wholesale of mining, construction and civil engineering machinery
46.7 - Wholesale of motor vehicles, motorcycles and related parts and accessories
49.50 - Transport via pipeline
52.10 - Warehousing and storage
62.01.Z - Computer programming activities
62.02.Z - Computer consultancy activities
62.03.Z - Computer facilities management activities
62.09.Z - Other information technology and computer service activities
68.20.Z - Rental and operating of own or leased real estate
71.12.Z - Engineering activities and related technical consultancy
71.20 - Technical testing and analysis
74.10.Z - Specialised design activities
77.39.Z - Rental and leasing of other machinery, equipment and tangible goods n.e.c.
