ON CONSTRUCTION

Manufacture of furniture made of wood

Operation of canteens or (e.g. for factories, offices, hospitals or schools) on a concession basis

Construction and maintenance of power plants

Construction/erection and maintenance of power, telecommunication and transmission lines

Construction of long distance pipelines or urban pipelines

Construction and maintenance of industrial facilities such as refineries chemical plants etc.

Installation of electrical wiring and fittings

Other electrical electrical installation n.e.c.

Other plumbing, heat and air conditioning activities n.e.c.

Installation of industrial machinery and equipment