Danish concern Velux, the biggest producer of roof windows in the world, is launching production at a new plant near Partizanske where it invested €36.5m. By the end of next year around 200 people will be employed there. The subsidiary firm Partizanske Building Components SK will specialize in the production of maintenance-free plastic roof windows with a wooden core. As the CEO of SARIO Peter Hajaš told, today is Velux the biggest foreign investor in Partizanske region. There is a lot of space in the industrial park, where the other investors could established, say Hajaš