Planning and execution of installations, renovations, repair and maintenance work in the field of building technology (heat generation, heating and sanitation), provision of all services in the field of building technology and repairs, teaching activities in basic and further education as well as trade in goods of all kinds. The company may participate in or manage other enterprises or institutions, establish and operate branches at home and abroad, acquire, exploit or dispose of patents, licenses and other rights, acquire or manage real estate and conduct all transactions that are conducive to the purpose of the company.