68.10.Z - Buying and selling of own real estate
35.1 - Electric power generation, transmission and distribution
35.2 - Manufacture of gas, and distribution of gaseous fuels through mains
35.30.Z - Steam and air conditioning supply
36.00.Z - Water collection, treatment and supply
41 - Construction of residential and non-residential buildings
43.1 - Demolition and site preparation
43.2 - Electrical, plumbing and other construction installation activities
68.20.Z - Rental and operating of own or leased real estate
68.3 - Real estate activities on a fee or contract basis